Seed Yield and Quality of Okra (Abelmoschus esculentus (L.) Moench) as Influenced by Sowing Dates, Harvest Date and Pod Position
M.
Mohamed
Horticulture Research Institute, Agricultural Research Center, Giza, Egypt
author
H.
Ahmed
Horticulture Research Institute, Agricultural Research Center, Giza, Egypt
author
Anisa
Ismail
Horticulture Research Institute, Agricultural Research Center, Giza, Egypt
author
text
article
2016
eng
Seed production and quality of okra were obviously influenced by sowing date, harvest date and pod position on the mother plant. The aim of the present study was to determine the effect of sowing dates (1st March, 1st April and 1st May), harvest dates (30 , 40 and 50 days after anthesis (DAA)) and pod position on plant (lower, middle and upper) on seed yield and quality of okra (Balady cv.). Two field experiments were carried out during the summer seasons of 2013 and 2014 at Shandaweel Agriculture Research Station, ARC, Sohag Governorate, Egypt. The obtained results indicated that, sowing okra plants on 1st April increased all studied characters compared to other sowing dates of 1st March, or 1st May. Harvesting pods at 40 or 50 days after anthesis gave the maximum germination percentage comparing to early harvest at 30 days after anthesis. Pods at lower or middle positions on the okra plant exhibited the best values in seed yield in terms of seeds number/pod, seeds weight/ pod, 100 seed weight and quality in terms of germination percentage, root and shoot length of seedlings. All possible combinations had significant effect on pod diameter, seed index, germination percentage and shoot in both seasons. The highest values were obtained from pods of plants sown on in 1st April and their pods harvesed from lower or middele postions after 40 days after anthesis.It could be recommended from the previous results the highest seed yield and quality was obtained in okra under the condition of this experiment and similar conditions, following planting okra on 1st April and harvest till 8 th pod after 40 days from anthesis.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1137
1145
https://jpp.journals.ekb.eg/article_46953_e7d6d693636fbb7873c7cb5732928524.pdf
dx.doi.org/10.21608/jpp.2016.46953
Physiological Studies on Growth and Productivity of Tomato Grown in Sandy Soil under Low Temperature Conditions.
A.
Zakher
Vegetables Res. Dept., Horticulture Res. Inst., Agricultural Res. Center, Giza, Egypt.
author
M.
Elashry
Vegetables Res. Dept., Horticulture Res. Inst., Agricultural Res. Center, Giza, Egypt.
author
text
article
2016
eng
Two field experiments were carried out at private farm Amoun Agricultural Society, AL-tal El Kabier, Ismailia Governorate, Egypt during the two successive winter seasons of 2013/2014 and 2014/2015 to study effect of using some anti-cold stressors or anti-oxidants compounds on minimizing cold injury on tomato plants grown in sandy soil under drip irrigation system. The compounds used were Phosphor X, Pepton 85/16 , Amcoton, Calcium citrate, Zinc citrate , Potassium citrate , Potassin-F, Ascopen comparing with the untreated control. These compounds applied as foliar spray on the vegetative growth four times starting at the beginning of flowering stage and repeated every 10 days.The obtained results showed that, all compounds used in these study induced positive effect on reducing cold injury of the low temperature during the growing season, i,e October , November , December , January months comparing with the control . The superior treatments in this regard were the foliar spray with Phosphor X, Pepton 85/16, Amcoton while, the other treatments showed medium effects. Phosphor X, Pepton then Amcoton registered the high values in cold tolerance, i.e., induced higher degrees of minimizing chilling injury, while the lowest value of minimizing chilling injure was obtained from the control. In addition, the same favorable treatments i,.e : the foliar spray with Phosphor X, or Pepton then Amcoton showed excellent influence on the vegetative growth, fruit setting, fruit yield and its quality of tomato plants grown in winter season under sandy soil .So it can be recommend that spraying tomato plant during the winter months by some anti-cold stress treatments such as Phosphor X, or Pepton then Amcoton respectively for the purpose of minimizing chilling injury and enhancing the vegetative growth and giving high fruit yield with best quality.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1147
1154
https://jpp.journals.ekb.eg/article_46954_07da5ad91570f3293829b3ba88569ac0.pdf
dx.doi.org/10.21608/jpp.2016.46954
physical and Physicochemical Properties for Selected Hybrid Rice Combinations Derived from Three Line System
G.
Anis
Rice Res. and Training Center, Field Crops Res. Inst., Agricultural Res. Center, 33717 Sakha - Kafrelshiekh, Egypt.
author
H.
Gharib
Agronomy Dept., Fac. Agric., 33516 Kafrelshiekh University, Egypt.
author
text
article
2016
eng
Ten hybrid rice genotypes were evaluated during 2015 and 2016 rice growing seasons at the Experimental Farm of the Rice Research and Training Center (RRTC), Sakha, Kafrelshiekh, Egypt. The experiments were assessed to study Physical and physicochemical properties of rice hybrids grain and heritability with genetic advance which is more helpful in predicting the quality under selection than heritability estimates alone. Combined analysis was performed for data over the two years. Most of studied characters were significantly greater in 2015 than in 2016 season except the duration, grain yield and appearance quality of rice. Highly significant differences were observed among the genotypes for all studied traits. G46A/WTR1 genotype followed by G46A/LH1 produced the highest grain yield. All the hybrid combinations have medium grain shape (< 3.0 ratio) except for G46A/IR04A132 (slender > 3.0 ratio). The hybrid IR69625A/WAB6-125 recorded higher milling yield (70.5%). The hybrid G46A/IR43 showed less broken rice (6.8 %) followed by G46A/HHZ5-Y3-Y1-DT1 (8.1%). All hybrid combinations were intermediate for gelatinization temperature except for IR69625A/CT19021-3-4 was high. Amylose content % of all genotypes ranged from 21.6 to 25.7%. The interaction between genotypes and years had a non-significant effect except for 1000-grain weight and head rice recovery. The estimates of heritability were high for all traits except for gelatinization temperature and ranged from 71.05% to 99.95%. The presence of high heritability values indicates the effectiveness of selection on the basis of phenotypic performance. Grain L/W ratio (95.52% and 26.57%), head rice recovery (99.84% and 21.03%) and elongation ratio (71.05% and 34.09%) recorded high heritability and high genetic advance, respectively. Significant positive phenotypic correlation was found between grain yield and days to maturing (0.635), number of panicles per plant (0.655) and grain width (0.712). The trait grain length showed highly significant and positive correlation with grain L/W ratio (r = 0.927) and significant negative with grain width (r = -0.700). The trait brown rice recovery showed significant and positive correlation with milled rice recovery (r = 0.760) and amylose content (r = 0.730).
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1155
1163
https://jpp.journals.ekb.eg/article_46956_6d8f34f06dc8bfe99fb760b76db7f0af.pdf
dx.doi.org/10.21608/jpp.2016.46956
Seed Yield and Seed Quality of Some Soybean Genotypes as Influenced by Planting Date
A.
Morsy
National food legume Res. Prog, Field Crops Res. Inst., ARC, Giza, Egypt
author
Eman
Mohamed
Seed Technology Res. Section, Field Crops Res. Inst., ARC, Giza, Egypt
author
Th.
Abou-Sin
National food legume Res. Prog, Field Crops Res. Inst., ARC, Giza, Egypt
author
text
article
2016
eng
This study was conducted at Sakha Agricultural Research Station, kafr El_Shiekh, Egypt during 2013 and 2014 growing summer season to determine the effects of three planting dates on seed yield and seed quality of ten soybean genotypes. The planting dates starting from mid-May at 15 days intervals. The soybean genotypes included Giza 22, Giza 35, Giza 111, and Crawford (four commercial soybean cultivars), H 30, H 32, H2 L12, and DR101(promising lines) and two introductions (Toano and Holladay). The obtained results of the combined data showed that delaying from mid-May to mid-June significantly decreased numbers of days to flowering and maturity from 40.4 and 133.91days, respectively to 34.3 and 122.2 days, and shortened the reproductive growth stage from 93.9 to 88.0 days, along with reducing weight of 100 seeds from 15.92 to 12.39g, and seed yield per feddan from 1.613 to 1.053 ton/fed-1. On contrary, seed protein content and seed germination were increased from 33.23 and 69.5% to 39.09 and 89.67%, respectively, while oil content was decreased by delaying planting from 23.06 to 19.18%. The soybean genotypes varied in all studied traits, that DR 101 was the latest in flowering and maturity (51.3 and 150.3 days, respectively) and produced the highest 100-seed weight (17.2g), while H30 was the earliest in maturity (115.00 days) and the lowest in 100-seed weight (12.14g). The commercial cultivar Giza 111 produced the highest seed yield (1.625t/fed.). Data showed also that Toano was the best in seed germination over all planting dates with 90.22% as an average, whereas H32 was the bad in seed germination (60.22%). It could be concluded that, Giza 111, Toano and DR 101 could produce acceptable seeds with more than 80% germination when planted during the first half of June, while the earlier genotypes H30, H32, and Giza 35 must be planted around mid-June to produce seeds with acceptable viability.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1165
1171
https://jpp.journals.ekb.eg/article_46960_4191d3466f7d68004042296fd285994f.pdf
dx.doi.org/10.21608/jpp.2016.46960
Efficiency of some Seed Vigor Tests for Field Emergence Prediction of Onion Seed
F.
Yousof
Department of Seed Technology Research, Field Crops Institute, Agriculture Research Centre.
author
Abeer El-Ward
Ibrahim
Department of Seed Technology Research, Field Crops Institute, Agriculture Research Centre.
author
M.
Abo EL-Dahab
Department of Seed Technology Research, Field Crops Institute, Agriculture Research Centre.
author
text
article
2016
eng
Laboratory and field experiments were conducted to evaluate the accuracy of different seed vigor tests for prediction of onion seed performance in field. Seed vigor tests under evaluation were accelerated aging (24, 48 and72 h), salt saturated accelerated aging (24,48 and 72 h) , controlled deterioration and brick gravel test, beside standard germination test. Accelerated aging at 48 h and controlled deterioration tests showed insignificant differences with field emergence % and provided the same classification of the onion seed lots found by the emergence of seedlings in the first season. But, standard germination test and other vigor seed tests recorded significant differences of quantitative relation with field emergence %. Standard germination test, accelerated aging 48 h, controlled deterioration and brick gravels tests were a significantly contributing variables to variation in field emergence % according to simple regression analysis. But, we had not reliability of the simple regression analysis to evaluate seed vigor tests for prediction of onion seed performance in field. It could be concluded that the prediction of field emergence of onion seed can be effectively done by using accelerated aging 48 h and the controlled deterioration tests, for standardization accelerated aging 48 h and the controlled deterioration tests for field emergence prediction of onion seed lots, they should be tested in different laboratories.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1173
1178
https://jpp.journals.ekb.eg/article_46962_817d1075b50f60f5e2c074b5019ca3d4.pdf
dx.doi.org/10.21608/jpp.2016.46962
Pistil Receptivity of Saidy Date Palms Grown under New Valley Conditions when Pollinated with Pollen Suspension
E.
Ahmed
Date Palm Central Lab. Agric. Res. Center. Giza, Egypt.
author
H.
Saied
Hort. Dept. Fac. of Agric. Aswan Univ. Egypt
author
S.
El-Sharabasy
Date Palm Central Lab. Agric. Res. Center. Giza, Egypt.
author
text
article
2016
eng
This trial was conducted during 2015 and 2016 seasons to found the best time of pollination of Saidy date palms grown under NewValley conditions. Pollination was done by spraying pollen grains suspension (5 g pollens/L water). Selecting the optimum period at which the female flowers of such date palm cv. remain receptive for pollination is very essential for date palm growers. Pollination was carried out on zero, two, four, six, eight and ten days from female cracking, besides the traditional pollination (seven strands / spathe). The date reveals that the time of pollination had an obvious impact on fruit retention%, yield and quality of Saidy date palms fruits. Traditional pollination with seven strands / spathe surpassed the pollination with improving grain suspension on product fruit retention %, yield and bunch weight. Fruit quality was greatly enhanced with pollination using pollen grain suspension over carrying out traditional pollination. Delaying times of pollination from zero to four days after spathe cracking caused a gradual promotion on fruit retention, yield and bunch weight. A gradual reduction on these parameters was observed with delaying times of pollination from 4-10 days after spathe cracking. Delaying times of pollination from 0-10 days after spathe cracking caused a progressive promotion on all physical and chemical characteristics of the fruits. Carrying out pollination with pollen grain suspension ( 5 g/ 1 L W) at two to four days after spathe cracking is considered the striking period of pistil receptivity and at the same time was necessary to produce appropriate yield and fair fruit quality of Saidy date palms grown under New Valley conditions,
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1179
1182
https://jpp.journals.ekb.eg/article_46966_293d2a18bc14703cc7eeac61726c7df6.pdf
dx.doi.org/10.21608/jpp.2016.46966
Quality Properties and Reduction of Microbial Infection of Various Watermelon Fresh-Cut Shapes in Response to: 1-Methyl Cyclopropene and Calcium Chloride.
Aml
El-Awady
Vegetable Postharvest and Handling Dep. Res., Hort. Res. Institute, Agric. Res. Center, Giza, Egypt.
author
Huda
Bader
Bacterial Disease Res. Dep., Plant Pathology Res. Inst., Agric. Res. Center, Giza, Egypt.
author
text
article
2016
eng
This study was conducted on watermelon in El-Mansoura Research Station during the summer seasons of 2014 and 2015. Two potential compounds of 1-methylcyclopropene (1-MCP) at 0.5% (full fruits), calcium chloride (CaCl2) at 1.5% (fresh cut) and dual application as well as untreated control in combination with three cutting shapes (slices, triangle with rind and cubes without rind) were evaluated to increase quality, reduce weight loss and microbial count efficiency under cold storage period.The combined application of 1-MCP and CaCl2 with slices (9 days after storage, DAS) exhibited significant positive effect on total (TSS, lycopene, sugars and aldehydes). Also, this treatment enhanced color, taste and texture and reduced weight loss, juice leakage, total alcohols and the bacterial counts followed by triangle with rind (6 DAS) and cubes without rind (3 DAS) compared to the control and separate treatments under cold storage at 4oC and 98% RH. This is turns reflecting on quality, storability and visual characters. Conclusively, treated fruits with 1- MCP at 0.5% and dipped slides with rind in solution of CaCl2 at 1.5% for keeping, storing and reduce microbial infection of watermelon fresh-cut for 9 days at 4oC/98% RH in retail markets.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1183
1194
https://jpp.journals.ekb.eg/article_46967_0934faaf68e1d9e8d6fbdf14f3b878b7.pdf
dx.doi.org/10.21608/jpp.2016.46967
Substantial Fluctuating of Nitrogen Sources and Levels for Improving Canola Productivity in New Reclaimed Lands
Eman
EL-Sarag
Agronomy Dept., Fac. Environ. Agric. Sci., Arish University, North Sinai, Egypt
author
A.
Hassan
Faculty of Technology and Development, Zagazig University, Egypt.
author
text
article
2016
eng
In order to explore the effects of different sources and levels of nitrogen on agronomic characteristics of canola. Tow field experiments were conducted at the Experimental Farm, Faculty of Agriculture, Ismailia Governorate, Egypt during 2013/2014 and 2014/2015 seasons. Nitrogen fertilizer in the form of Ammonium Nitrate (AN) was added in two equal doses, the first dose, after three weeks of planting and the second one after seven weeks of planting at the levels of 0, 50,75 and 100 kg ha-1. But nitrogen in the form of Ammonium Sulfate (AS) was practical in one equal portion after sowing and before irrigation at four levels, i.e. 0, 15, 30 and 45 kg ha-1. Results designated that all agronomic characters increased with increasing N application, but the oil content diminished particularly with Ammonium Nitrate. Application of 100 kg N ha-1 in form of AN or 45 kg N ha-1 in form of AS chronicled the maximum seed yield in the two seasons. It could be determined that the cultivation of plants in the presence N in the form AN or AS enhanced the nutritional values of the yielded seed under the new reclaimed soils inEgypt.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1195
1200
https://jpp.journals.ekb.eg/article_46968_275cc995758c56f389ef2cf3d065d7f8.pdf
dx.doi.org/10.21608/jpp.2016.46968
Effect of Nitrogenous Concentration Solutions on Vegetative Growth, Yield And Chemical Characters of Celery (Apium Graveolens L.)
D.
Abd-Elkader
Vegetable Crops Department, Faculty of Agriculture, Alexandria University, Egypt
author
A.
Alkharpotly
Horticulture Department (Vegetable Crops), Faculty of Agriculture and Natural Resources, Aswan University, Egypt
author
text
article
2016
eng
Celery (Apium graveolens L.), a biennial plant of the Apiaceae family. It is frequently used as a vegetable, spice, and natural medicine in Egypt. The objective of this work was to study the effect of three nitrogenous concentration solutions on vegetative, yield and chemical characters of three celery cultivars under floating hydroponic system. Two experiments were conducted in a completely randomized block design with a split-plot arrangement of treatments at three replicationsduring the winter seasons of 2014 and 2015 in hydroponic floating system in a polyethylene greenhouse. The nutrient solutions with three N-level (90,180 and 270 ppm) were assigned to main plots and three celery hybrids cultivars (Utah, Presedent and Montery) were allocated to subplots. The results indicated that the intermediate nitrogen level (180 mg. L-1) brought about the highest significant mean values of plant height, number of leaves/ plant, plant fresh weight and total yield kg.m-2. Data, also, expressed that the lowest nitrogenous levels (90 mg. l-1); gave rise of the highest significant mean values for TSS and pH characters, in both seasons. On the other hand, the three nitrogenous levels didn't differ, significantly, in their effects on V.C, total phenols and acidity characters of celery plants, during both seasons. Also, data showed that "Utah" variety showed the highest significant values for vegetative and total yield characters compared with the other tested hybrids.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1201
1206
https://jpp.journals.ekb.eg/article_46970_0160d7789755068fa3c98c931fd83774.pdf
dx.doi.org/10.21608/jpp.2016.46970
Allelopathic Effect of the Foliar Spray by the Aqueous Seeds Extract of Moringa (Moringa oleifera) and Fenugreek (Trigonella foenum graecum) on Cineraria (Pericallis x hybrida) Plant.
M.
Kasem
Vegetable and Floriculture Department, Agriculture College, Mansoura University, Mansoura City, Egypt.
author
M.
Abd El-baset
Vegetable and Floriculture Department, Faculty of Agriculture, Mansoura University, Mansoura city, Egypt.
author
text
article
2016
eng
The chemical fertilizers caused many problems in our planet like soil and underground water pollution, beside the residuals of these fertilizers in the edible fruits or the ornamental plants. Thus, two seeds extract (moringa and fenugreek) were evaluated for their ability as biotic elicitors in the fertilization process of cineraria plants under different concentrations (0, 50, 75 and 100), each alone or in combinations on some vegetative growth, flowering parameters and chemical contents of this pot plant. Results cleared that combination between 50% MSE+ 75% FSE produced the shortest and compact plants. Moreover, the interaction between 75% MSE+ 50% FSE recorded the heaviest fresh and dry weights, reduced number of days for starting flowering and increased the inflorescence crown diameter. In addition, most of the highest concentration extracts between both 100% MSE + 100% FSE, 100% MSE + 75% FSE and 75% MSE + 100% FSE tabulated highest N and K% in cineraria leaves. Finally, using 50% MSE individually or in combination with 50% FSE enhanced the pigments content (total chlorophyll and carotenoids).
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1209
1214
https://jpp.journals.ekb.eg/article_46971_e1a32d44d23248053b432184d4e747f4.pdf
dx.doi.org/10.21608/jpp.2016.46971
Evaluation of some Fodder Beet Genotypes for Yield, Yield Components and Diseases Susceptibility under New Valley Conditions
N.
Hamed
Forage Crops Res. Dept., Field Crops Res. Inst. ARC., Giza, Egypt.
author
M.
Abdel-Monaim
Plant Pathology Res. Inst., ARC., Giza, Egypt
author
text
article
2016
eng
A field experiment was conducted to evaluate four fodder beet genotypes under Farm of El-Kharga Research Station of the Agricultural Research Center New Valley Governorate during two successive growing winter seasons of 2013/14 and 2014/15. The experiment was carried out in a randomized complete block design (RCBD) with three replications. The present investigation focused on the growth and yielding properties and diseases development. The obtained results show that the tested genotypes of fodder beat were significantly different for yield characteristics viz. average of leaf length, root length, number of leaves/plant and root diameter and yield components viz. fresh and dry weight of root and leaves/plant and total fresh and dry weight of root and leaves/fed. Genotype Splendid recorded the highest leaf length, number of leaves /plant, root diameter in both seasons and their combined data, respectively. Also, this genotype recorded the best root fresh weight/plant, total fresh weight of roots/fed and dry weight of roots/fed. in both seasons their combined data, respectively. While genotype Jamon recorded the highest root length, fresh weight of leaves/plant, total fresh weight of leaves / fed. and total dry weight of leaves/fed in both seasons their combined data, respectively. On contrary, Splendid fodder beat genotype recoded the lowest fresh weight of leaves /plant, fresh and dry weight of leaves/fed. While, Jamon recorded the lowest fresh weight of root/plant, fresh and dry weight of roots/fed. The combined analysis of data revealed that the treats leaf length, number of leaves per plant fresh weight of leaves per plant and dry weight of roots per fed were insignificant effect by seasons. While the characters, root length, root diameter, fresh weight of root per plant and fresh weight of roots per fad were significant affected by seasons, whereas the mean values of the second season were more than the first season.On the other hand, the tested genotypes were varied to susceptibility to infection with diseases viz. damping-off, root rot/wilt, powdery mildew and leaf spots under natural infection in field. Both Rigour and Jamon genotypes recorded the highest susceptibility to infection with damping-off disease in both growing seasons, while both genotypes recorded the lowest root rot /wilt severity. Splendid and Rigour genotypes were recorded the highest susceptible to infection with powdery mildew in both growing seasons. Starmon and Splendid genotypes were recorded the highest percentage of infection with leaf spot disease in both growing seasons. We could recommend growing genotype Splendid under New Valley Governorate because recorded the highest results in most parameters and resistance to root rot and wilt diseases.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1215
1220
https://jpp.journals.ekb.eg/article_46972_c6e19104b9e9e0eb9c7f43b2ea127fc5.pdf
dx.doi.org/10.21608/jpp.2016.46972
Response of Some Snap Bean Cultivars to Foliar Application with some Antioxidant Substances for Increasing Productivity and Quality under Local Environments at Early Summer Season.
A.
Hamaiel
Veg. and Flori. Dept., Fac. Agric., Damietta Univ., Egypt.
author
M.
Hamada
Gen. Dept., Fac. Agric., Damietta Univ., Egypt.
author
M.
Shokr
Veg. Res. Dept., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
author
Eman
Abd-Elrhem
Veg. Res. Dept., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
author
text
article
2016
eng
Two field experiments were carried out at El-Baramoon Research Farm, El-Mansoura Horticulture Research Station, Horticulture Research Institute, Agricultural Research Center, Egypt during the early summer season of 2014 and 2015 to study the effect of some foliar applications, i.e., moringa leaf extract (50 ml/l), yeast extract (25 ml/l), salicylic acid (150 ppm) and ascorbic acid (250 ppm) on vegetative growth, pod yield and quality of snap bean cultivars, i.e. Bronco, Polista and Valentino.The results showed that Valentino cultivar had longest plant height, heaviest fresh and dry weight, largest leaf area and gave the highest pod length, number of pods/plant and pod yield (ton/fed) compared with other cultivars in the two seasons. Whereas, the least one was Bronco cultivar in both season. Moreover, Bronco cultivar was the highest in pod weight, total soluble solids (TSS) and vitamin C in both seasons, meanwhile Polista pods had the highest fiber and titrable acidity contents. Whereas, the least one was Valentino cultivar in both seasons. All foliar applications significantly increased all the studied parameters compared with the control treatment. The superior application was salicylic acid followed by ascorbic acid in both seasons, respectively. From the obtained results, it could be concluded that Valentino cultivar sprayed with salicylic acid at 150 ppm three times, i.e., 15 days after planting and repeated each 15 days interval, respectively collected the highest total pod yield /fed and quality.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1221
1231
https://jpp.journals.ekb.eg/article_46973_b66358aaa6105c6ceee4b1748ff24a28.pdf
dx.doi.org/10.21608/jpp.2016.46973
Comparison Studies of Different Weeds Resistance Methods in Citrus Orchards of Dakahlia Governorate
A.
Hikal
Hort. Res. Institute Agric. Res. Center, Giza
author
M.
Esmaeil
Hort. Res. Institute Agric. Res. Center, Giza
author
text
article
2016
eng
This study was carried out during 2014 & 2015 seasons on Washington navel orange trees 20-years-old, in research orchard situated at Baramoun, Mansoura region, Dakahlia governorate. Aiming to evaluate the effect of different weed control methods and their relationship to the growth, yield and fruit quality of Washington navel orange trees. Four weed control methods were tested, control, hand resistance, mechanical hoeing and three herbicides (Herphosate, Sting, Roal). The obtained results indicated that all used treatments significantly increased shoot length, number of leaves, leaf surface area and yield (kg) /tree, ton/feddan. The highest values of fruit weight and the lowest value of acidity % were found under chemical weed control (Roal), where, rind thickness, TSS% and vitamin C were not affected by any type of herbicides used. Also, chemical weed control (Roal) was increased leaf chemical composition (N, P, K, Fe, Zn and Mn). In addition, chemical herbicides (Roal) was the lowest costs in this respect.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1233
1237
https://jpp.journals.ekb.eg/article_46974_ef651f57be0cb1ba56cc3a9ab02500df.pdf
dx.doi.org/10.21608/jpp.2016.46974
Yield Productivity and Stability of some Varieties of Egyptian Clover
I.
Ahmed
Forage crops Res. Sec., Field Crops Res. Inst., ARC., Giza, Egypt.
author
Hayam
Fateh
Central Laboratory For Design & Statistical Analysis Res., ARC, Giza , Egypt.
author
text
article
2016
eng
The present investigation was carried out to study the productivity of fresh and dry forage yield and stability parameters of five varieties of Egyptian clover (Trifolium alexandrinum L.). Five varieties (Helaly, Sakha 4, Giza 6, Gemmiza 1 and Serw1) were sown on three sowing dates (1st October, 15th October and 1st November) in a split plot design. The experiment was conducted at two experimental stations, Sids and Giza during 2011/2012 and 2012/2013 seasons. Five cuts were taken from the first and second dates of sowing wile only four cuts were taken from the third sowing date. Results revealed that mean squares of varieties, dates of sowing, varieties x dates and varieties x locations were highly significant for total fresh and dry forage yields. As an average performance of all varieties, total fresh and dry forage yields were higher at Sids compared to Giza. The highest fresh and dry forage yields of varieties were obtained from the first and second dates of sowing at the two locations while the lowest fresh and dry forage yields for varieties were obtained from the third sowing date. As an average sowing dates, Helaly variety out yielded of fresh (54.83 fad-1) and dry (8.17t fad-1) yields other tested varieties. The estimates of phenotypic stability parameters (bi and s2di) for fresh yield showed that the highest yield variety Helaly exhibited less instability while the variety Gemmiza 1 was more stable. The estimates of phenotypic stability parameters (bi and s2di) for dry yield showed that the highest yield and stable variety was Helaly. Therefore, these varieties Gemmiza 1 and Helaly could be recommended as good source in breeding programs.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
7
v.
11
no.
2016
1239
1244
https://jpp.journals.ekb.eg/article_46975_d38c03dbcad6d72931250eb7cf575075.pdf
dx.doi.org/10.21608/jpp.2016.46975