INFLUENCE OF FOLIAR SPRAY OF SOME MICRONUTRIENTS AND NITROGEN FERTILIZER ON PRODUCTIVITY OF SUGAR BEET UNDER NEWLY RECLAIMED SOILS.
A.
Osman
Sugar Crops Res. Inst. Agric. Res. Center Giza Egypt.
author
text
article
2011
eng
Two field trials were conducted during 2009/2010 and 2010/2011 seasons in Nubaria Research Station. Alexandria Governorate. The major goal was to study the effect of nine treatments which represented the combination between three foliar spray of some micronutrients solution levels (1/4, 1/2 and 3/4 /300 L water/fed) at 45 and 75 days from sowing and three nitrogen fertilizer levels of (80, 100 and 120 Kg/fed). A split plot design with four replications was used. The main plots were assigned to foliar spray with some micronutrients solution, whereas, nitrogen fertilizer in the sub plots.
The obtained results revealed that: foliar spray of micronutrients solution level at 1/2 l/fed attained a highest values for root diameter and fresh weight/plant, as well as, sucrose%, purity%, root and sugar yields/fed. While, N, Na and K% were decreased in both seasons. Foliar spray of micronutrients solution level at 3/4 l/fed increased root length and macroelements (g/100 g DW) in both seasons.
Application of nitrogen fertilizer at 120 kg N/fed gave the highest mean values of root length, diameter, fresh weight/plant, root and sugar yields/fed. On the contrary, a gradual reduction in sucrose% and purity% had been detected with the increase in nitrogen level over 80 kg N/fed.
Interaction between foliar spray of some micronutrients solution levels 1/2 l/fed and nitrogen fertilizer at 120 kg/fed significantly affected on sucrose%, root and sugar yields/fed in both seasons.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1113
1122
https://jpp.journals.ekb.eg/article_85643_752480551ed6139b130766b99a9f1265.pdf
dx.doi.org/10.21608/jpp.2011.85643
EFFECT OF DIFFERENT RATES OF FARMYARD MANURE AND PLANT SPACING ON GROWTH, YIELD AND QUALITY OF JERUSALEM ARTICHOKE PLANTS UNDER SANDY SOIL CONDITIONS
R.
Anwar
Veg. Res. Dept., Hort. Res. Inst., Agric. Res. Center, Giza. Egypt
author
M.
Ramadan
Veg. Res. Dept., Hort. Res. Inst., Agric. Res. Center, Giza. Egypt
author
I.
Al-Easily
Veg. Res. Dept., Hort. Res. Inst., Agric. Res. Center, Giza. Egypt
author
text
article
2011
eng
Two field experiments were carried out during two successive summer seasons of 2008 and 2009 at the experimental farm, El-Kassasein Research Station, Ismailia Governorate, to investigate the effect of different rates of farmyard manure (10,20,30 and 40 m3/fed), plant spacings (20,30,40 and 50 cm) and their interactions on vegetative growth, fresh and dry weight, yield and its components and chemical constituents of Jerusalem artichoke plants (Helianthus tuberosus L.) cv. fuseau under sandy soil conditions.
Farmyard manure at a rate of 40m3/fed. recorded maximum values of plant height, number of shoots /plant, fresh and dry weight/ plant, and increased number of tubers per plant, average tuber weight and yield / plant as well as chemical constituents of tubers as compared with 10m3/faddan.
Planting Jerusalem artichoke plant at 50 cm reflected the highest values of vegetative growth parameters, yield and yield components as well as chemical constituents of tubers.
The best interaction treatment between different rates of farmyard manure and plant spacing was fertilization with 40m3 farmyard manure in combination with the highest plant spacing (50cm) as compared with other treatments.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1123
1135
https://jpp.journals.ekb.eg/article_85644_757e11bf86fe0210c69b06b8447c1cba.pdf
dx.doi.org/10.21608/jpp.2011.85644
EVALUATION OF BIOMASS AND SOME CHEMICAL PROPERTIES OF Dendrocalamus strictus GROWN UNDER SEWAGE WATER
Mona
Abbas
Forestry and Timber Trees Dept., Horticulture Res. Inst., Agric. Res. Center, Giza, Egypt.
author
Maha
Ismail
Forestry and Timber Trees Dept., Horticulture Res. Inst., Agric. Res. Center, Giza, Egypt.
author
Hala
Khaliel
Forestry and Timber Trees Dept., Horticulture Res. Inst., Agric. Res. Center, Giza, Egypt.
author
text
article
2011
eng
Evaluation of biomass and some physical and chemical properties of Dendrocalamus stricus 6-year-old (Barkley et al ) grown under sewage water in Sarabuim Ismailia Governorate were conducted during the season of 2009. It is shown from data that, plants where cut has weight of 3.622 kg then weight decreased to 1.203 kg after 100days from cutting. Also culm diameter decreased from 2.446 cm to 2.075 cm after 80 days from cutting. It is observed that NPK differed from group to other, the group C ( culm diameter more than 4 cm) has the highest content of nitrogen while, P and K are less than the group which their plants culm less than 0.4 cm. Wood extracts, cellulose and lignin are increased with increasing plant culm diameter. So the group C (culm diameter more than 4 cm) has the largest amount of cellulose, lignin and fiber length (77.437%, 81.197% and 1.85 mm ), respectively. Also group C (culm diameter more than 4 cm) has the largest content of heavy metal (Ni, Cd and Pb) 121.83, 8.160 and 50.773 mg/100 g., respectively. Branches number and their weight increased from group A (culm diameter less than 3 cm) to group C (culm diameter more than 4 cm) (culm diameter is above 4 cm) and group B (culm diameter 3- 4 cm) in between.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1137
1149
https://jpp.journals.ekb.eg/article_85645_62a6918544837f27ddb1c6a5af44b53a.pdf
dx.doi.org/10.21608/jpp.2011.85645
ANNUAL INCREMENT GROWTH IMPROVEMENT OF Swietenia mahagoni AS EFFECTED BY USING NPK FERTILIZER IN THE NEW RECLAIMED LANDS.
Maha
Ismail
Forestry and Timber Trees Dept., Horticulture Res. Inst., Agric. Res. Center, Giza, Egypt.
author
Mona
Abbass
Forestry and Timber Trees Dept., Horticulture Res. Inst., Agric. Res. Center, Giza, Egypt.
author
Hala
Khaliel
Forestry and Timber Trees Dept., Horticulture Res. Inst., Agric. Res. Center, Giza, Egypt.
author
text
article
2011
eng
In this investigate conducted during period of 2008 to 2011 to study the effect of NPK fertilizer on annual increment rate for growth of Swietenia mahagoni, Fam. Meliaceae. The trees were at the age seven years old, which have been planted at a distance of 3mx3m in new reclaimed land, north west of Cairo, Egypt, at the Experimental Farm of Aly Moubarak Hort. Res. Inst. Agric. Res. Center (ARC). They were fertilized with ammonium sulphate (15.5% N) at the rates of N1 = 0.0, N2 = 51.61 and N3 = 103.22 g, superphosphate (40-46% P2O5) at the rates of P1 = 0.0, P2 = 64.51 and P3 = 129.03 g and potassium sulphate (50% K2O) at the rates of K1 = 0.0, K2 = 16.00 and K3 = 32.00 g all per tree, which they were 27 treatments. The best treatments which were more effective in annual rate increment for height (ARIH) were K1N2P3 and K2N2P1 (88.333 and 83.333 cm) in the first year and K3N1P3 (83.333 cm) in the second year of fertilization. The treatment of K3N2P2 caused the high value of annual rate increment for diameter at breast height (ARIDBH) which was (3.040 cm) and high value of annual rate increment for Basal area (ARIBA) which was(56.970 cm2) in the first year of fertilization, while, in the second one K2N3P3 treatment produced high value of BAAI (56.843 cm2). However, in the third year of fertilization there was no significant effect of NPK fertilizers on the previous measurements, in addition to in many treatments fertilization lead to an adverse effect on these measurements.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1151
1161
https://jpp.journals.ekb.eg/article_85646_1885fd2489a342ce38780fe1f2209903.pdf
dx.doi.org/10.21608/jpp.2011.85646
EFFECT OF SOWING DATES AND MINERAL SULPHUR FERTILIZER ON YIELD AND QUALITY OF SUGAR BEET UNDER NEWLY RECLAIMED SOILS
A.
Osman
Sugar Crops Res. Inst. Agric. Res. Center Giza, Egypt.
author
text
article
2011
eng
Two field trials were conducted out in 2009/2010 and 2010/2011 seasons at Kom Osheim, El-Fayoum Governorate to study the effect of three sowing dates (1st October; 15th October and 1st November) and soil application of sulphur fertilizer in the form of Calcium poly sulfide CaSO4 (30% sulphur) at the levels of (zero, 125 and 250 kg CaSO4/fed, mixed with soil) which were applied at 45 and 75 days age, on Kawemira variety. A split plot design with four replicates in both seasons was used. The main plots were assigned to sowing dates, whereas, soil application with CaSO4 in the sub plots. The results indicated that: early sowing dates at 1st October significantly increased root diameter, root fresh weight/plant, as well as, root and sugar yields/fed, while, mineral contents SO4% and N% were significantly decreased as compared with the other two sowing dates 15th October and 1st November. While, sown sugar beet at 15th October gave the highest sugar% in both seasons, respectively. Soil application with sulphur (CaSO4) level up to 250 kg CaSO4/fed significantly increased root diameter, root fresh weight/plant, sucrose% andyields/fed (root and sugar), while, minerals content of SO4% and N% were increased as compared with control and sulphur (CaSO4) level with 125 kg CaSO4/fed in both seasons, respectively. The interaction between early sowing date at 1st October and soil application with 250 kg CaSO4/fed significantly increased sucrose%, root and sugar yields/fed in both seasons.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1163
1170
https://jpp.journals.ekb.eg/article_85647_071504e0f69cbeba8aabc48378e0518d.pdf
dx.doi.org/10.21608/jpp.2011.85647
GENETICAL ANALYSIS FOR YIELD AND ITS ATTRIBUTES IN BREAD WHEAT USING THE FIVE PARAMETERS MODEL
Soheir
Abd-Allah
Wheat Research Dept., Field Crops Research Institute, A.R.C., Egypt
author
A.
Mostafa
Wheat Research Dept., Field Crops Research Institute, A.R.C., Egypt
author
text
article
2011
eng
The present work was carried out at Etay-Elbaroud Agriculture Research Station Behera governorate during four seasons from 2007/ 2008 to 2010/2011. Three crosses were made among four parents, namely Gemmiza 9 × Irena, Sids 1× Sakha 93 and Sids 1× Irena. Five populations (P1, P2, F1, F2 and bulk of F3) for each cross were used in this investigation. Highly Significant positive heterotic effect was found in the 2nd cross for grain yield and its attributes i.e., number of spikes/plant, number of kernels/spike and 1000-kernel weight and grain yield/plant, being 8.69%, 9.78%, 6.71% and 9.78% in the same respective order. Meanwhile, Negative significant heterotic effects were obtained in the 3rd cross for both number of spikes/plant (-17.45%) and number of kernels/spike -3.08% led to a reduction in grain yield/plant with a value being (-10.37%). Complete dominance was found for number of spikes/ plant and 100-kernel weight in the first cross whereas, overdominance (p>1) was detected for grain yield and its attributes in the 2nd cross. The other types of dominance were also found.
Inbreeding depression estimates were significant with a positive value for number of spikes/ plant in the first and third cross, number of kernels/ spike and grain yield/ plant in all crosses. On the other side, inbreeding depression was negatively significant for number of spikes/ plant in the second cross and for 100-kernel weight in the second and third cross. Additive gene effects were positive and significant for number of kernels/ spike in the second and third cross and 100-kernel weight in the first cross. Dominance gene effects were found to be significant for all studied characters with the exception of number of kernels/ spike in the first and second cross indicating that dominance played a major role in the inheritance of such characters. Significant and positive (E1) values were found for 100-kernel weight in the studied crosses. While, negative values were obtained for number of spikes/ plant in the third cross, number of kernels/ spike in all crosses, and grain yield/ plant in the second and third cross. Moreover, (E2) values were found to be positive and significant for 100-kernel weight in the third cross only. On the other hand, significant negative (E2) values were detected for number of spikes/ plant and number of kernels/ spike in the three crosses, for 100-kernel weight in the second cross, and grain yield/ plant in both the second and third cross. Narrow sense heritability estimates were ranged from 39.35% for number of spikes/ plant in the third cross to 94.32% for grain yield/ plant in the second one. The parent-off spring regression heritability estimates were high and ranged from 58.85% for number of spikes/ plant in the third cross to 95.65% for grain yield/ plant in the second one. The expected genetic advance (Δg) for number of spikes/ plant was ranged from 3.87 to 10.17 for the selected 5% of F2 compared with the actual genetic gain which was ranged from 5.07 to 9.37 in the studied crosses. Meanwhile, the expected gain for grain yield/plant was ranged from 21.05 to 36.26 gm.whereas, the actual gain was ranged from 18.46 to 26.81 gm.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1171
1181
https://jpp.journals.ekb.eg/article_85649_67d247e4ffe8e3235dfdfba2f6cea877.pdf
dx.doi.org/10.21608/jpp.2011.85649
الإکثار المخبري لنبات الستيفيا Stevia rebaudiana باستخدام بيئات غذائية
عبد المحسن
عمر
جامعة حلب – کلية الزراعة
author
أيمن
برکات
المؤسسة العامة لإکثار البذار
author
text
article
2011
eng
أجري هذا البحث على نبات الستيفيا Stevia rebaudiana المکاثر مخبرياً بهدف دراسة إمکانية تطبيق تقنية الإکثار الدقيق لهذا النبات وتحديد البيئة الغذائية الأمثل للإکثار الخضري الدقيق سجلت النتائج مخبرياً بعد زراعة بذور نبات الستيفيا في بيئة غذائية معقمة MS (Murashige and Skooge, 1962)
وبعد إنبات البذور ضمن البيئة تم إکثار النباتات الناتجة بواسطة العقل ضمن البيئة الغذائية المذکورة وبعد 30 يوم من الزراعة تم إکثار النباتات الناتجة في ستة بيئات مختلفة و بأربعة مکررات لکل منها وسجلت القراءات في نهاية الأسبوع الرابع و البيئات المستخدمة هي :
MS, MS+2mgKin+2mgIAA, MS+0.2mgBAP , MS+0.5mgGA3 MS1/2MS Ph5
وکانت أهم النتائج المتحصل عليها:
1- لوحظ أن بيئة MS pH5 قد أعطت أعلى متوسط لطول النبات /5.12 سم/ في حين ان الزراعة في بيئة MS احتلت الترتيب الثاني في هذه القراءة وبدون فرق معنوي بين البيئتين .
2- أما بالنسبة لمتوسط عدد الأفرع فکان التفوق لبيئة MS + 0.2mgBAP وبيئة MS + 2mg Kin + 2mgIAA وبقراءة 5.75 و 5.25 على التوالي وبدن فروق معنوية بينهما .
3- بالنسبة لمتوسط عدد الأوراق فکان التفوق لبيئة MS + 2mgKin + 2mgIAA وبقراءة 17 وبدون فروق معنوية مع بيئة 0.2mg BAP + MS و التي کانت قراءتها 15.5 وبفروق معنوية مع باقي البيئات .
4- في حالة متوسط طول الجذور فقد تفوقت بيئة MS على باقي البيئات وبقراءة / 1.75سم / وبدون فروق معنوية مع بيئة MS pH5وبيئة MS + GA3 وبقراءة 1.5 لکل منهما .
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1183
1191
https://jpp.journals.ekb.eg/article_85650_907a70ef3502a9ec23d1fb7012203658.pdf
dx.doi.org/10.21608/jpp.2011.85650
ESTIMATES OF GENETIC EFFECTS FOR YIELD AND ITS ATRRIBUTES IN CERTAIN BREAD WHEAT CROSSES.
Azza
Abdel-Aal
Wheat Research Program, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt.
author
text
article
2011
eng
This investigation was carried out at Bahteem Agric. Res. Station through the three growing seasons of 2005/2006, 2006/2007 and 2007/2008 aiming to study gene effects for yield and its components in four bread wheat crosses namely; 1-(Gemmeiza 9 X Giza 168); 2- (Sids 1 X Giza168); 3- (Sids 1 X Sakha 8) and 4- (Sakha 8 X Gemmeiza 9).
The results showed that additive gene effects (d) was important in the inheritance of spike grain weight, number of grains/spike and kernel weight in the 1st cross. Meanwhile, dominance genetic variance was the main components controlling the inheritance of plant height, spike grain weight, number of grains/spike and kernel weight mainly in other crosses.
The results of the two digenic epistatic effects additive X additive (i) and dominance X dominance (L) confirm its importance role in the genetic system controlling most of the studied characters. Over-dominance cases were involved in the inheritance of plant height, spike grain weight, number of grains/spike and 100-kernel weight in the 1st cross, while partial dominance was present for both number of spikes/plant and total weight/plant in the same cross.
The 4th cross gave the highest heterotic value over its better parent for grain yield/plant followed by the 3rd cross and at the same time gave highly heterotic values for at least one of its yield components for number of grains/spike.
The highest estimates of narrow sense heritability were detected for plant height, grain yield/plant, kernel weight and number of grains/spike in the 1st cross. Moderate heritability estimates were also detected for total weight/plant in the 1st and 2nd crosses.
High expected genetic gain were found to be associated with high narrow sense heritability estimates which makes selection for such traits in the early generations possible
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1193
1203
https://jpp.journals.ekb.eg/article_85651_8b392464cb1312661d33abcd1dc88e2b.pdf
dx.doi.org/10.21608/jpp.2011.85651
GROWTH, YEILD AND QUALITY OF JERUSALEM ARTICHOKE PLANTS UNDER SANDY SOIL CONDITIONS AS AFFECTED BY FOLIAR SPRAY WITH MAGNESIUM AND DIFFERENT RATES OF NITROGEN FERTILIZATION
R.
Anwar
Veg. Res. Dept., Hort. Res. Inst., Agrice. Res. Center.
author
E.
El-Tantawy
Plant Production Dept.(Vegetables), Fac. Environ. Agric. Sci., El-Arish, Suez Canal Univ., Egypt
author
N.
Soliman
Veg. Res. Dept., Hort. Res. Inst., Agrice. Res. Center.
author
text
article
2011
eng
This work aimed to study the effect of interaction between four N rates (100%, 75%, 50% and 25% of recommended dose) and spraying with three rates of Mg (0, 1%, and 2%) on Jerusalem artichoke plants growth, tuber chemical analysis and tuber yield under sandy soil conditions. The results indicated that application of 100% or 75% of recommended N were the best treatments for increasing plant growth, most of tuber chemical analysis parameters, and tuber yield / plant as well as per feddan. Spraying with Mg increased all studied parameters compared to control treatment. On the other hand, the best interaction treatments for increasing plant growth, tuber chemical analysis and tuber yield were application of 100% N + spraying with 1% or 2% Mg and application of 75% N+ spraying with 1% Mg approximately.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1205
1219
https://jpp.journals.ekb.eg/article_85652_5ea445eef8a7cfcf307f8e30f3974831.pdf
dx.doi.org/10.21608/jpp.2011.85652
YIELD AND QUALITY OF SOME PROMISING SUGARCANE VARIETIES AS AFFECTED BY PLANTING PATTERN
A.
Ahmed
Sugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt.
author
A.
Nafi
Sugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt.
author
M.
Bekheet
Sugar Crops Res. Inst., Agric. Res. Center, Giza, Egypt.
author
text
article
2011
eng
The present study was carried out at El-Mattana Agriculture Research Station Qena Governorate, Upper Egypt in 2007/2008 and 2008/2009 growing seasons to evaluate three sugarcane varieties(two promising varieties viz. G. 98-28, Phil. 8013 and the commercial variety G.T. 54-9) grown at three planting pattern; whole stalk as one, two and three pieces. Treatments were arranged in a split-plot design with three replicates. The main plots were assigned to three sugarcane varieties while planting pattern were distributed in the sub plots.
Results showed that sugarcane varieties were significantly differed in stalk diameter, sucrose percentage and sugar yield ton/fed in the second season only. Cane yield was significantly affected by grown varieties in both seasons. Phli. 8013 showed superiority in all significant traits.
Under this study as compared with of her varieties planting pattern were significantly affected in all studied traits except stalk height, brix and sucrose percentages in the second season and number of millable cane/m2 in both seasons. Planting sugarcane with by cutting cane stalk into three pieces gave the highest values in all studied traits except, stalk diameter which obtained with planting whole stalk.
The interaction effect between varieties and planting pattern was insignificant in all studied traits except in purity percentage in the first season. The height values were obtained when planting Phli.8013 variety by cutting cane stalks into three pieces.
Under conditions of the present work, growing sugarcane varieties i.e., G.T. 54-9, Phil. 8013 and G. 98-28 by cutting cane stalk into three pieces recommended for getting the highest cane and sugar yields/fed.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1221
1232
https://jpp.journals.ekb.eg/article_85653_cc57515cd5cbf5e4de14811e9ba55cc4.pdf
dx.doi.org/10.21608/jpp.2011.85653
INFLUENCE OF PRECEDING WINTER CROPS AND IRRIGATION INTERVALS ON RICE TREATED WITH HUMIC AND ASCORBIC ACIDS IN NORTH DELTA
E.
Ibrahim
Crop Intensification Research Dept. Field crop Research Institute. ARC. Giza, Egypt.
author
text
article
2011
eng
A field experiments were conducted at Tag El-Ezz Agric, Res. Station, Dakahlia governorate Egypt, during the two successive summer seasons of 2005 and 2006 to study the effect of three preceding winter crops (flax, sugar beet and faba bean), three irrigation intervals (every 4, 6 and 8 days) in addition to humic (HA) & ascorbic acids (AA) on growth and yield of rice(sakha 101). The main results could be summarized as follows:
Preceding winter crops, irrigation intervals and humic & ascorbic acids had a significant effect on all studied characters in both seasons. Grain yield of rice grown after faba bean attained increase 17.4 and 13% (average of two seasons) compared to rice grown after flax and sugar beet, respectively. Irrigation of rice fields every 6 days recorded the highest values in all studied characters in both seasons expect plant height and straw yield/fad. Irrigation every 6 days increased yield/fad by 4.4 and 21.4% compared to every 4 and 8 day respectively. Application of ascorbic acid gave the highest mean values in all studied characters in both seasons, which attained increase in grain yield reached to 9.3 and 3.8 % compared to control and humic acid, respectively.The highest grain yield (4.87 and 4.97 ton/fad) was recorded by the interaction among cultivation after faba bean, irrigated every 6 days and spraying by ascorbic acid.
The relationship between grain yield from one side and its attributing variables on the other side was done using correlation, multiple linear regression and stepwise regression. The simple correlation coefficient cleared significant positive correlation between grain yield t/fad and each of individual studied characters, also cleared that there was significant positive correlation among all characters that were studied and each of other. Multiple regression analysis indicated that the relative contribution for all characters were 91.67 % from the total variation for yield t/fad. Results of stepwise regression analysis revealed that four out of nine variables contributed by 91.55 % in the total variation for yield t/fad. These variables were flag leaf area, 1000-grain weight, filled grains % and number of grains/panicles with R2 being 89.67, 1.15, 0.40 and 0.73 %, respectively.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1233
1247
https://jpp.journals.ekb.eg/article_85654_41b8a36dd1d04946653fed6da6c5d950.pdf
dx.doi.org/10.21608/jpp.2011.85654
THE ACCURACY OF ACCELERATED AGING TEST FOR EVALUATING THE PHSIOLOGICAL QUALITY OF SEEDS
I.
Mersal
Seed Technology Res. Department, Field Crops Research Institute, ARC
author
text
article
2011
eng
Accelerated aging test results were found to be affected by many factors namely; relative humidity, temperature degrees, exposure periods and seed chemical composition. Therefore, precaution should be taken when utilizing this test for evaluating seed viability. This study was carried out at Seed Technology unit, Mansoura, Dakhlia Governorate during 2010 and 2011 years, to determine the value of accelerated aging test conditions for evaluating seed vigour and its relationship to chemical composition of the tested seeds (wheat, soybean and sunflower). The main results could be summarized as follows: Conducting the accelerated aging test at the highest surrounded relative humidity level (100%) led to increasing seed moisture content and the increase was more rapidly comparing to conducting the test with using saturated salt solutions (SSAA) such as sodium hydroxide (75%Rh.). Increasing temperature degrees during the aging test release seed water absorption specially at saturated relative humidity (100%). Seed moisture contents increased as the exposure period to accelerated aging conditions was increased. Also soybean seed was more sensitive to the accelerated aging conditions especially relative humidity comparing to sunflower and wheat seed. So, the results suggest conducting the accelerated aging test for soybean seed at relative humidity 75% and temperature degrees not excesses 44Co for 72hour., (100% relative humidity, 41C0 for 72 hour) for wheat and (100% relative humidity, 44C0 for 72 hour) for sunflower.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1249
1258
https://jpp.journals.ekb.eg/article_85655_4e721f51109a31a107224635ff81fdbe.pdf
dx.doi.org/10.21608/jpp.2011.85655
SELECTION WITHIN F2 THROUGH F4 FOR EARLINESS AND PRODUCTIVITY IN FABA BEAN (Vicia faba L.)
M.
Bakheit
Field Crops Research Institute, ARC, Egypt
author
M.
Soliman
Field Crops Research Institute, ARC, Egypt
author
M.
Raslan
Field Crops Research Institute, ARC, Egypt
author
Nagat
Abdallah
Field Crops Research Institute, ARC, Egypt
author
text
article
2011
eng
This work was conducted in the Experimental Farm of Mattana Agricultural Research Station, Agricultural Research Center, Egypt, during two successive winter seasons of 2008/2009 and 2009/2010 to study the responses to two cycles of selection from the offspring of three crosses among local cultivars with variable levels of earliness and high yielding ability. Four cultivars of faba bean i.e. Giza-716, Giza-843, Sakha-1 and Triple White were crossed to attain the goal of this study. In the first season of 2008/2009, mean performances of the four parents and their offspring of F2 generation for seed yield per plant and number of days from sowing to maturity were measured in order to make the best choices of populations of high yielding ability and earliness. The results showed that three of six populations attained the best results of the critical traits i.e. Sakha-1 × Giza-843, Sakha-1 × Giza-716 and Giza-843 × Triple White. In the first season of 2008/2009, the responses to selection were measured at the levels of six out of eight traits because there were insignificant differences between the bulk and the selected populations for both numbers of days from sowing to flowering and maturity of the selected F3 families. Plant height insignificantly varied among the 3 populations and ranged from 109.1 to 119.1 cm. and number of branches per plant from 4.47 to 7.07 branches. However number of pods per plant insignificantly varied among the 3 populations and ranged from 36.7 to 53.9 pods and number of seeds per plant from 95.7 to 100.8 seeds. Although the analysis of variance indicated insignificant variations among the 3 populations selected of F3 for number of pods and seeds/plant, the responses to selection for both traits were very high. Weight of seeds (g) per plant of the selected F3 families considerably varied among the 3 populations and ranged from 59.16 to 105.13 g and also the response to selection was so high and reached a convenient level to continue for further cycles of selection. Weight of 100 seeds relatively varied among the 3 populations from 62.1 to 80.9 g. In the second season of 2009/2010, the means of all eight traits of the selected F4 families were calculated and the responses to selection were measured with similar results as those of the selected F3 families. The population Giza-843 × Triple White has achieved the goal of the research as it exhibited high productivity with good level of earliness indicating the importance of proper choice for the germplasms selected in breeding programs. The results obtained encouraged the team work to continue the research on the three selected populations in advanced cycles of selection to improve the performance of faba bean plants.
Journal of Plant Production
Mansoura University, Faculty of Agriculture
2090-3669
2
v.
9
no.
2011
1259
1270
https://jpp.journals.ekb.eg/article_85656_a4249972a867782e68ba05826ad527bc.pdf
dx.doi.org/10.21608/jpp.2011.85656