Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
PERFORMANCE OF SOME PROMISING FLAX LINES FOR YIELD AND ITS COMPONENTS UNDER NORMAL AND SANDY SOIL CONDITIONS
1
16
EN
H.
M. H.
Abo-Kaied
Field Crops Res .Inst., A.R.C., Giza, Egypt.
Amany
M. M.
El-Refaie
Field Crops Res .Inst., A.R.C., Giza, Egypt.
Eman
A. A.
El-Kady
Field Crops Res .Inst., A.R.C., Giza, Egypt.
10.21608/jpp.2011.85451
Twenty-four flax genotypes {21 promising lines and 3 check varieties, Giza 8 (oil type), Sakha 1 (dual purpose type) and Sakha 3 (fiber type)} were evaluated for straw, seed, oil yields and their related traits under two different environments (Sakha Exp.Station, Kafr El-Sheikh Governorate "clay soil" and Ismailia Exp.Station, Ismailia Governorate "sandy soil") through two successive seasons, 2008/09 and 2009/10. These materials were evaluated in a randomized complete block design with three replications at the two above-mentioned locations.
The collected data indicated that, Genotypes mean squares were highly significant for straw, seed, yields/fed and their related traits. The genotype x year variance (s<sup>2</sup>gy) was less than the genotype x location variance (s<sup>2</sup>gl) for all characters, except plant height and oil percentage. Consequently evaluation should probably stress using more locations but testing over a shorter period of times. Heritability values (H%.) in broad sense were high for plant height and two important components of seed weight (seed index and No. of capsules/plant). Also, the observation of narrow range between phenotypic (PCV) and genotypic (GCV) coefficients of variability, which gave almost similar values of PCV and GCV in plant height was mainly due to genetic differences as evidenced from the very high heritability. Also, straw weight per plant and long fiber percentage as well as the two important components of seed showed similar results, indicating possibility of using these yield components (seed index and No. of capsules per plant) in selection index for improving seed weight per plant as well as plant height to improve straw weight per plant.
Concerning mean performance and susceptibility index as affected by environmental stress for sandy soil, line 541-C/3 exhibited high yielding potential with high tolerance for straw and fiber yields per fed, but this line exhibited moderate tolerance for both seed and oil yields per fed. Also, line 541-D/10 exhibited high yielding ability with moderate tolerance to sandy soil conditions for each of straw, fiber, seed, and oil yields per fed. Hence the two promising lines, 541-C/3 and 541-D/10 may be consider good substitutes for the low yielding ones, Giza 8, Sakha 1 and Sakha 3 in future after evaluation in more location before releasing as a new Egyptian flax cultivar and may be useful as potential breeding material for releasing cultivars to sandy soil conditions (suitable to grown in sandy soil) for fiber and oil "dual purpose".
Flax,variability,sandy soil conditions,stress susceptibility index
https://jpp.journals.ekb.eg/article_85451.html
https://jpp.journals.ekb.eg/article_85451_b0f88eaf8584d25f90cc0c7cd9b8adbd.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
إستخدام منتجات طبيعية صديقة للبيئة في تحسين الجودة والقدرة التخزينية للحاصلات البستانية "دراسة مرجعية"
17
30
EN
يوسف
شاهین
الشوفي
قسم بحوث التفاحيات والکرمة ، إدارة بحوث البستنة ، الهيئة العامة للبحوث العلمية الزراعية ، سوريا
أحمد
يونس
قسم علوم البستنة ، کلية الزراعة ، جامعة دمشق ، سوريا
عماد
العيسى
قسم علوم البستنة ، کلية الزراعة ، جامعة دمشق ، سوريا
10.21608/jpp.2011.85453
يواجه تخزين الحاصلات البستانية مشاکل کبيرة تتمثل فى الفقد بالوزن والإصابات الفطرية و الأمراض الفيزيولوجية و الذي ينعکس على نشاط مختلف العمليات الفيزيولوجية أثناء تطور الثمار بحجر التخزين، ويسبب ذلک في زيادة الذبول والکرمشة ومعدل التنفس وبالتالي فقد کبير لمحتويات الثمار من السکريات والأحماض العضوية والبروتينات والأنزيمات الفعالة وإستهلاک الثمار بالتالي لمکوناتها الداخلية مما يقلل من جودة المنتج وقيمته الغذائية والتسويقية وقابليته للعرض في الأسواق، و يؤثر ذلک سلباً على ذوق المستهلک وينعکس في تقليل العائد الإقتصادي من عملية التخزين. ويستخدم لذلک العديد من المبيدات الفطرية لمکافحة أمراض التخزين الفطرية، ولکن استخدام هذه المبيدات يسبب أثراً متبقياً في الثمار ضار بالبيئة وخطير على صحة الإنسان، کما أن التطبيق المتکرر لهذه المبيدات أدى لوجود سلالات مقاومة من الممرضات. لذا فإن هذه الدراسة المرجعية تهدف لتطوير وتقييم بعض المنتجات الطبيعية وهي مرکبات النکهة، حمض الخليک، الکحول الإيثيلي، الأسيتالدهيد، الجاسمونات، الغلوکوزينولات، البروبوليس، الفوسابيرون، الديوکسي فوسابيرون، الکيتوسان، الزيوت النباتية، المستخلصات النباتية، کمواد بديلة في مکافحة ممرضات ما بعد القطاف وتحسن جودة الحاصلات البستانية وزيادة قدرتها التخزينية، و جميع هذه المواد صديقة للبيئة وغير ضارة بصحة الإنسان ولا تترک أثراً متبقياً في الثمار.
https://jpp.journals.ekb.eg/article_85453.html
https://jpp.journals.ekb.eg/article_85453_75d7528aab15f9b5d5ec0beaf4abb999.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
تأثير بعض المواد الکيميائية المستخدمة کبدائل للتبخير بغاز ثاني أکسيد الکبريت على محتوى الکاروتين والکسانثوفيل الکلي في ثمار العنب صنف البلدي أثناء التخزين المبرد
31
38
EN
يوسف
شاهین
الشوفي
قسم بحوث التفاحيات والکرمة ، إدارة بحوث البستنة ، الهيئة العامة للبحوث العلمية الزراعية ، سوريا
أحمد
يونس
قسم علوم البستنة ، کلية الزراعة ، جامعة دمشق ، سوريا
عماد
العيسى
قسم علوم البستنة ، کلية الزراعة ، جامعة دمشق ، سوريا
10.21608/jpp.2011.85455
تم تبخير ثمار عنب المائدة المحلي صنف البلدي <em>Vitis vinifera</em>, L. المزروع في قرية الکفر بمحافظة السويداء تحت ظروف الزراعة البعلية في موسمين متتاليين 2008/2009 بالکحول الإيثيلي المطلق بترکيزين 75 و 100 % وحمض الخليک المطلق فى ترکيز 75 و 100 % والأسيتلدهيد المطلق 75 و 100 %، في حجرة تبخير خاصة مقاس 100 × 90 × 75 سم، ومقارنتها بتطبيق شرائح ميتا بيسلفيت الصوديوم بترکيزين 1 و 1,5 غ. کغ<sup>-1</sup> ثمار، والثمار الکنترول. حيث جمعت الثمار وبعد تطبيق کافة المعاملات عبئت بأکياس بولي إيثيلين سماکة 40 ميکرون وأبعاد 40× 60 سم ووضعت في عبوات بلاستيکية سعة 5 کغ، ثم خزنت جميع الثمار بعد عملية التبريد الأولي في حجر التبريد التابعة لقسم بحوث التفاحيات والکرمة في السويداء، عند درجة حرارة 0 ± 1 م<sup>°</sup> ورطوبة نسبية 90- 95 % لمدة ثلاثة أشهر. تم تحليل صبغة الکاروتين والکسانثوفيل الکلي کل 15 يوماً.
أثرت جميع المعاملات المطبقة بشکل أفضل من تطبيق شرائح ميتا بيسلفيت الصوديوم، حيث حافظت هذه المعاملات على صبغة الکاروتين الکلي ملغ / ل والکسانثوفيل الکلي ملغ / ل في ثمار العنب البلدي وذلک مقارنةً بالمعاملة بالکبريت والکنترول.
https://jpp.journals.ekb.eg/article_85455.html
https://jpp.journals.ekb.eg/article_85455_f7b439ee12465e9b56c575857108ed83.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
RESPONSE OF GROWTH, PRODUCTIVITY AND STORABILITY OF GARLIC (Allium sativum L.) TO FOLIAR SPRAY WITH MAGNESIUM AND YEAST EXTRACT
39
51
EN
A.
H. A.
El-Morsy
Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
U.
M.
Saif El-Deen
Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
A.
S.
Ezzat
Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
as_ezzattaf@yahoo.com
10.21608/jpp.2011.85458
Foliar application of mineral nutrients considers a method of supplying nutrients to higher plants more rapidly than methods involving root application, which makes the nutrients more efficient. It is a quick and efficient method of supplying micro elements in particular. It can, also be used to satisfy acute needs of macro nutrients. This study was conducted on garlic cv. Sids-40, in the privet farm at Kafr Meet Faris village, near El-Mansoura, Dakahlia Governorate, during 2008/2009 and 2009/2010 seasons to study the effect of foliar application with certain magnesium concentrations (0.0%, 0.2%, 0.4% and 0.6% as Mg-citrate) either single and/or in combination with foliar application of some yeast extract concentrations (0.0, 25 ml/L, 50 ml/L and 100 ml/L) on plant growth, yield and its components, as well as chemical constituents and storability of bulbs during the storage period.
<strong>The obtained results could be summarized as follows: </strong>
In general, results showed that the plants sprayed with Mg-concentrations were better than those of the unsprayed ones. Increasing the foliar applied magnesium concentration from 0.2% to 0.6% Mg significantly increased plant height, number of leaves/plant, plant dry weight and bulbing ratio as well as total yield and bulb weight and diameter. Moreover, foliar application of magnesium at 0.6% Mg significantly increased concentrations of N, P and K in cloves. In addition, TSS% and volatile oils were increased. This concentration had the most interesting observation in the enhancing of storability. On the other hand, foliar application of yeast extract at 50 ml/L gave rise to significant increases in plant height, number of leaves/plant; plant dry weight, bulbing ratio, total yield, bulb weight and diameter and clove weight as well as chemical constituents in cloves and decreasing bulb weight loss percentage during the storage period compared with the other treatments. The combined treatments of Mg-concentrations and yeast extract were generally more effective on the most studied parameters than single ones. The best results were obtained by foliar application of 0.6% Mg with foliar application of yeast extract at 50 ml/L. This treatment achieved increases in yield at the end of the storage period reached to 18.20% and 18.80% in the first and second seasons, respectively compared with the untreated ones. Therefore, this treatment could be recommended for raising garlic yield and improving bulb quality during the storage period under similar conditions to this work.
https://jpp.journals.ekb.eg/article_85458.html
https://jpp.journals.ekb.eg/article_85458_d939e56a284405aedaa69efbcf53470c.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
EFFECT OF PHOSPHORUS FERTILIZER RATES AND APPLICATION METHODS OF HUMIC ACID ON PRODUCTIVITY AND QUALITY OF SWEET POTATO
53
66
EN
U.
M.
Saif El-Deen
Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
A.
S.
Ezzat
Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
as_ezzattaf@yahoo.com
A.
H. A.
El-Morsy
Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center, Giza, Egypt.
10.21608/jpp.2011.85460
Two field experiments were conducted on sweet potato (<em>Ipomoea batatas</em> L.) cv. Beaure Gard at the Horticulture Research Farm of El-Bramoon, El-Dakahlia Governorate, during the two successive summer seasons of 2007 and 2008 to evaluate the effects of different rates of phosphorus (15, 30 and 45 kg P<sub>2</sub>O<sub>5</sub>/fed) either single and/or in combination with application methods of humic acid (control, foliar spray, transplant treatment and soil application) on plant growth, yield and its components, as well as chemical constituents and storability of tuber roots.
In general, results showed that the increasing of applied phosphorus rate from 15 kg P<sub>2</sub>O<sub>5</sub> up to 45 kg P<sub>2</sub>O<sub>5</sub>/fed significantly increased main stem length, canopy dry weight plant leaf area, total chlorophyll and carotenoides as well as total and marketable yield, dry matter percentage of tuber root and tuber root weight and diameter, Moreover, Application phosphorus at 45 kg P<sub>2</sub>O<sub>5</sub>/fed significantly increased N, P, K, carbohydrate and total sugars in tuber roots. This P-rate had the most interesting observation was the enhancing of storability and reduced decay percentage. On the other hand, application methods of humic acid had a significant effect on all studied characters in both seasons. Soil application method of humic acid had a significant increases in plant growth characters, photosynthetic pigments, total and marketable yield and tuber root quality. Besides, this application method significantly increased chemical composition of tuber roots and reduced the weight loss and decay percentages.
The combined treatments of P-rates and application method of humic acid were generally more effective on the most studied parameters than with single ones. The best results were obtained by application 30 kg P<sub>2</sub>O<sub>5</sub>/fed with soil application method of humic acid. This treatment achieved increases in vegetative growth characters, total and marketable yield, average of tuber root weight and diameter as well as concentrations of N, P, K, carbohydrate and total sugars in tuber roots. In addition, this combined treatment enhanced the tuberous roots storability and reduced decay% comparing with the other ones.
Therefore, this treatment could be recommended for raising sweet potato yield and improving tuberous roots quality as well as reduced the need for chemical P-fertilizer by about 33.3 %, thereby reducing costs and environment pollution under similar conditions to this work.
https://jpp.journals.ekb.eg/article_85460.html
https://jpp.journals.ekb.eg/article_85460_2bdca89c60569bfc9872dcbefd1367ba.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
INFLUENCE OF SEEDLING AGE AND NITROGEN FERTILIZER LEVELS ON GROWTH, GRAIN YIELD, N-UPTAKE AND N-USE EFFICIENCY OF HYBRID RICE VARIETIES.
67
80
EN
R.
N.
Gorgy
Rice Res. and Training Center, Field Crops Res. Inst., ARC, Egypt
I.
S.
El-Refaee
Rice Res. and Training Center, Field Crops Res. Inst., ARC, Egypt
ielrefaee69@yahoo.com
M.
M.
Nassr
Soils, Water and Environment Res. Inst., ARC, Egypt.
10.21608/jpp.2011.85461
Two field experiments were conducted at Rice Research and Training Center (RRTC), Sakha, Kafr El-Sheikh, Egypt, in 2008 and 2009 growing seasons. The objective of this research was aimed to find out the optimum seedling age and nitrogen levels to obtain maximum production of hybrid rice varieties under normal soil. Growth analysis, grain yield and its components, N-uptake and nitrogen use efficiency were determined. The most important obtained results could be summarized as follows:
In both seasons, SK2034H hybrid rice variety significantly exceeded SK2058H variety. and recorded the highest dry matter production, plant height, number of panicles/m<sup>2</sup>, number of spikelets/panicle, number of filled grains (%), panicle weight, grain yield, N content, N-uptake for grains and straw and N-use efficiency (NUE).
25 day old seedlings had higher values of dry matter (DM), leaf area index (LAI), plant height, grain yield, harvest index (HI), and most of its attributes, nitrogen content, N-uptake, and use efficiency (NUE) than old seedlings 35 or 40 day old. The minimum values of these traits were obtained when plants were transplanted with 40 day old seedlings.
Increasing nitrogen fertilizer levels significantly improved growth, yield and its components. Each unit increase in N-levels led to a significant increase in all these traits. Nitrogen use efficiency (NUE) was significantly higher at lower N levels and decreased significantly with increasing N fertilizer levels. On the other hand, N-content and N-uptake for grain and straw yields significantly increased by increasing the nitrogen fertilizer level up to 220 kg N/ha.
The interaction between hybrid rice varieties and seedling age significantly affected dry matter, panicle weight, 1000-grain weight, grain yield and N-uptake for grains. A significant interaction effect between hybrid rice varieties and N fertilizer levels for dry matter, grain yield and N-uptake for grains. The interaction between seedling age and nitrogen levels significantly affect dry matter, number of spikelets/panicle and grain yield.
It could be concluded that hybrid rice varieties must be transplanted with seedling, 25 days old, fertilized at a rate of 220 kg N/ha in three equal splits to get maximum grain yield per unit area.
https://jpp.journals.ekb.eg/article_85461.html
https://jpp.journals.ekb.eg/article_85461_4ee776703b2333403a2773af725da87a.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
DIRECT MICROPROPAGATION OF ENGLISH LAVENDER (Lavandula angustifolia Munstead) PLANT.
81
96
EN
A.
M.
Hamza
Veget and Flori Dept., Fac. Agric., Mansoura Univ.
Omaima
M.
Abd El-Kafie
Veget and Flori Dept., Fac. Agric., Mansoura Univ.
M.
M.
Kasem
Veget and Flori Dept., Fac. Agric., Mansoura Univ.
mmk@mans.edu.eg
10.21608/jpp.2011.85464
The present investigation was carried out to study the <em>in vitro</em> shoot proliferation, root formation and <em>ex vitro</em> acclimatization of English lavender (Munstead). Nodal explant showed a good response for producing the highest survival percentage, shoots and leaves number comparing with the shoot tip one. Among the tested cytokinins, TDZ at 0.20 mg/L recorded the highest shoots number (30.55 shoots), followed by BAP at 0.80 mg/L (16.50 shoots). The weakest effects on shoots number were recorded for media supplemented with all Kin concentrations, however it tabulated the tallest shoots length. Also, MS at full strength supplemented with sucrose as a carbon source at concentration of 30.00 or 40.00 g/L, significantly recorded the highest number of shoots and leaves. But, the lowest vitrification percentage was obtained when media strength started to decrease, as <sup>1</sup>/<sub>4</sub> strength medium which supplemented with sucrose or glucose at 40 g/L recorded 0.00% vitrification. Rooting which was achieved on half strength medium fortified with NAA at 1.00 mg/L significantly recorded the highest roots number of 21.25 roots, comparing with 11.86 roots only when IBA was added into the medium at 2.00 mg/L, but it was noticed that NAA concentrations decreased the roots length comparing with IBA one. Transplanting the rooted shoots into a mixture of peat moss + vermiculite + loamy soil (1:1:1 v) resulted in the highest survival percentage of 90.00% and a increase in shoots length of 12.71cm.
https://jpp.journals.ekb.eg/article_85464.html
https://jpp.journals.ekb.eg/article_85464_76c2a70daac2145b4c7f7cc8587ec801.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
تقدير درجة التفاعل بين الترکيب الوراثي والبيئة لبعض الصفات الاقتصادية في أصناف القطن المزروعة في سوريا
97
108
EN
روعة الشيخ
عطية
الهيئة العامة للبحوث العلمية الزراعية, إدارة بحوث القطن, مرکز البحوث العلمية الزراعية في ديرالزور
وضاح
القاضي
الهيئة العامة للبحوث العلمية الزراعية, إدارة بحوث القطن بحلب
سمير
عبود
الهيئة العامة للبحوث العلمية الزراعية, إدارة بحوث القطن, مرکز البحوث العلمية الزراعية في ديرالزور
سمير
الأسمر
الهيئة العامة للبحوث العلمية الزراعية, إدارة بحوث القطن, مرکز البحوث العلمية الزراعية في ديرالزور
10.21608/jpp.2011.85467
تم زراعة خمسة أصناف من القطن هي : حلب 118, حلب 90, حلب 33-1, رقة 5 و دير الزور 22 في خمسة مواقع مختلفة هي: کسرة الشيخ جمعة (الرقة), تل حديا(حلب), المريعية (دير الزور), تل سطيح (القامشلي) وتل تمر(الحسکة) لمدة أربعة مواسم زراعية (2006, 2007,2008 و 2009) وذلک في تصميم القطاعات الکاملة العشوائية (RCBD ) بمکررين وتم تحليل التجربة باستخدام برنامجي MSTATC وGENSTAT وقد حصلنا على النتائج التالية : تفوق الصنف حلب 90 ورقة 5 بشکل معنوي على باقي الأصناف في صفة الإنتاجية (کغ/دونم) في المواقع الخمسة وفي السنوات الأربعة, وتفوقت الأصناف حلب 118, حلب 90 ورقة 5 بشکل معنوي على باقي الأصناف بصفة نسبة التبکير% وتفوق الصنف دير 22 بشکل معنوي على باقي الأصناف بصفة تصافي الحليج % . من ناحية أخرى, فقد تفوق موقعي کسرة جمعة وتل حديا بشکل معنوي على باقي المواقع خلال سنوات الدراسة بالنسبة لصفة الإنتاجية بينما تفوقت مواقع کسرة جمعة وتل حديا والمريعية بشکل معنوي على باقي المواقع بصفة نسبة التبکير وتفوق موقعي تل حديا و تل سطيح بشکل معنوي على باقي المواقع بصفة تصافي الحليج. من جهة أخرى, فقد تفوق الموسم الثالث على باقي المواسم بشکل معنوي في صفة الإنتاجية, وتفوق الموسم الأول على باقي المواسم بشکل معنوي في صفتي نسبة التبکير وتصافي الحليج. أما فيما يخص التباينات , فقد أظهرت نتائج التحليل التجميعي أن التباين کان عالي المعنوية بين السنوات, بين المواقع وبين الأصناف لکل الصفات المدروسة بينما تراوحت تفاعلات الدرجة الأولى (سنواتXمواقع, سنوات Xأصناف و مواقعXأصناف) بين المعنوية وعالية المعنوية لکل الصفات فيما عدا التفاعل بين السنوات والأصناف فکان غير معنوي لصفة الإنتاجية. أما التباين العائد للتفاعل من الدرجة الثانية (سنواتXمواقعXأصناف) فکان معنوياً لصفتي الإنتاجية ونسبة التبکير وعالي المعنوية لصفة تصافي الحليج, مما يدل على أهمية تأثير البيئة في أداء الطرز الوراثية لکل الصفات المدروسة الأمر الذي يستلزم تقدير درجة تفاعل کل طراز من هذه الطرز مع البيئة.
دل تحليل الثبات على أن المکون الأول من مکونات التفاعل IPCA1 هو الأهم بالنسبة لکافة الصفات المدروسة مقارنة مع باقي المکونات. وتميزت الأصناف حلب 118، حلب 90، حلب33-1 و رقة 5 بدرجة عالية من الثبات بينما کان الصنف دير 22 ذو درجة ثبات منخفضة في صفتي إنتاجية القطن الزهر و نسبة التبکير, أما صفة تصافي الحليج فکانت الأصناف حلب 118, حلب 33-1, رقة 5 ودير 22 ذات درجة ثبات عالية بينما کان الصنف حلب90 ذو درجة ثبات منخفضة.
واعتماداً على متوسطات الأصناف ودرجة ثباتها تبين أن أفضل الأصناف التي يجب استخدامها کآباء في برامج التربية هي: الصنفين حلب 90 و رقة 5 في تطوير صفة إنتاجية القطن الزهر, الأصناف رقة 5, حلب 118 و حلب 90 في تطوير صفة نسبة التبکير و الصنف دير الزور 22 يليه الصنف رقة 5 في تطوير صفة تصافي الحليج.
قطن,التفاعل,الأصناف,المناطق,السنوات,الإنتاجية,التبکير و تصافي الحليج
https://jpp.journals.ekb.eg/article_85467.html
https://jpp.journals.ekb.eg/article_85467_75764eee153af479e086a2ec591d7906.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
GENETIC DIVERSITY ASSOCIATED WITH AGRONOMIC TRAITS AND BIOTIC STRESSES USING SSR MARKERS IN SOME EGYPTIAN RICE GENOTYPES
109
126
EN
Y.
Z. A.
El-Refaee
Rice Research & Training Center, Field Crops Research Institute, Agricultural Research Center, 33717 Sakha - Kafr El-Sheikh, Egypt.
elrefaeey@yahoo.com
S.
E. M.
Sedeek
Rice Research & Training Center, Field Crops Research Institute, Agricultural Research Center, 33717 Sakha - Kafr El-Sheikh, Egypt.
saberse@yahoo.com
R.
A. S.
El-Shafey
Rice Research & Training Center, Field Crops Research Institute, Agricultural Research Center, 33717 Sakha - Kafr El-Sheikh, Egypt.
B.
A.
Zayed
Rice Research & Training Center, Field Crops Research Institute, Agricultural Research Center, 33717 Sakha - Kafr El-Sheikh, Egypt.
basunyz@yahoo.com
10.21608/jpp.2011.85469
Genetic diversity underlies the improvement of crops by plant breeding. In Egypt, pedigree analyses indicate that the rice varieties currently under cultivation are closely related in there genetic background. Effective breeding programs, based on the information about of the genetic diversity of cultivars, are needed to broaden the genetic bases of local rice germplasm in the country. The present study has been conducted to evaluate the pattern, type and extent of genetic variability and relatedness among some rice varieties and new promising lines of Egypt based on important agronomic traits and some biotic stresses of some common diseases using simple-sequence-repeat (SSR) markers. In this study, we used a set of twelve SSR markers to assess the genetic diversity of 22 Egyptian rice cultivars and new promising lines, which released by the National Rice Breeding Program between years of 1975 and 2010. The 12 microsatellite markers used in this study produced a total of 73 alleles. The number of alleles per marker ranged from 3 (RM282) to 9 (RM488), with an average of 6.08. The polymorphism information content (PIC) values were high for all microsatellites with average of 0.588 and ranged from a low of 0.345 for RM249 to a high of 0.716 for RM488 and RM144. UPGMA-cluster-analysis based on genetic distance coefficients clearly separated all the genotypes, and showed that the Egyptian rice varieties are closely related. Although the genetic diversity was low, SSRs proved to be an efficient tool in assessing the genetic diversity of rice genotypes. Implications of the low genetic diversity detected and relative relationship among Egyptian varieties are discussed. Varieties like Giza177, Sakha 102 and Sakha 103 are still resistant for most of the biotic stresses and become good sources for biotic stress resistance relating to different disease blast in the national breeding program.
rice,genetic diversity and SSR makers,Rice diseases,biotic stresses
https://jpp.journals.ekb.eg/article_85469.html
https://jpp.journals.ekb.eg/article_85469_6bb294e8de968afd69798b67856745dc.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
INFLUENCE OF COLD STORAGE ON FRUIT QUALITY AND MARKETABILITY OF SOME PEACH CULTIVARS
127
137
EN
A.
M. K.
El-Khoreiby
Horticulture Dept., Fac. Agric., Suez Canal University, Ismailia, Egypt
A.
M.
Melouk
Horticulture Dept., Fac. Agric., Suez Canal University, Ismailia, Egypt
Naglaa
K.
Hafez
Horticulture Dept., Fac. Agric., Suez Canal University, Ismailia, Egypt
Nesreen
A.
Abd El-Salam
Horticulture Dept., Fac. Agric., Suez Canal University, Ismailia, Egypt
10.21608/jpp.2011.85470
This research was carried out in 2006 & 2007, on three peach cultivars, i.e., Flordaprince, Desert Red and Meet Ghamr to study the effect of cold storage on fruit quality and marketability. Weight loss, soluble solids content (SSC), and total sugars increased during cold storage and this increment was continuously observed during subsequent 4 days at 20<sup>o</sup>C. Firmness, acidity and phenols behaved inverse trend and this trend remained during marketing period. Symptoms of decay were visible in <br /> fruits of all cultivars between 15 and 20 days of cold storage.
https://jpp.journals.ekb.eg/article_85470.html
https://jpp.journals.ekb.eg/article_85470_8fe960380f017f786197fe4832fa8787.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
DETERMINATION OF MATURITY STAGE FOR SOME PEACH CULTIVARS UNDER ISMAILIA CONDITIONS
139
150
EN
A.
M. K.
El-Khoreiby
Horticulture Dept., Faculty of Agriculture. Suez Canal University, Egypt.
A.
M.
Melouk
Horticulture Dept., Faculty of Agriculture. Suez Canal University, Egypt.
Naglaa
K. H.
Serry
Horticulture Dept., Faculty of Agriculture. Suez Canal University, Egypt.
Nesreen
A.
Abd-El Salam
Horticulture Dept., Faculty of Agriculture. Suez Canal University, Egypt.
10.21608/jpp.2011.85473
This research was carried out in 2006 & 2007, using three peach cultivars, i.e., Flordaprince, Desert Red and Meet Ghamr to determine fruit maturity. Fruit weight, skin and flesh colour (a) values were gradually increased during maturation. In Meet Ghamr skin (b) values were increased till the age of 121 days, then decreased at the age of 128 days and displayed the lowest (a/b) values. Flesh color of Desert Red was much more yellow color than that of Flordaprince, while Meet Ghamr displayed red color. Reductions in firmness and total acidity were showed with advanced stage of fruit maturity, while SSC and total sugars showed inversely trend.
https://jpp.journals.ekb.eg/article_85473.html
https://jpp.journals.ekb.eg/article_85473_403165f97c91122f900acb890ea4e765.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
CHANGES IN STOMATAL CONDUCTANCE AND TURGOR PRESSURE IN Gossypium hirsutum L. IN RESPONSE TO FOLIAR APPLICATION OF FOUR HERBICIDES
151
155
EN
M.
A.
Wasfi
Botany Dept., Fac. Sci., Khartoum Univ., Sudan, P.O. Box 321
Ekhlas
Eltahir
Botany Dept., Fac. Sci., Khartoum Univ., Sudan, P.O. Box 321
10.21608/jpp.2011.85474
Foliar application of four herbicides (15ppm each), resulted in obvious reductions in stomatal conductance in the leaves of cotton. Percentage reductions (compared to controls) amounted to 13, 5, 18 and 33 with 2, 4-D, KCIO<sub>3</sub> , goal and stomp respectively.
Turgor pressure followed a similar trend, and percentage decrements (compared to controls) were 23, 6, 20 and 35 with 2, 4-D, KCIO<sub>3</sub> , goal and stomp respectively.
The negative effect of these herbicides on stomatal conductance and turgor pressure could be attributed to the documented drastic effects of many herbicides on biochemical and physiological processes in non target plants.
https://jpp.journals.ekb.eg/article_85474.html
https://jpp.journals.ekb.eg/article_85474_9194ea354946d2c8a8ab0d683a766216.pdf
Mansoura University, Faculty of Agriculture
Journal of Plant Production
2090-3669
2090-374X
2
1
2011
01
01
LABORATORY METHODS FOR THE RECOGNITION OF SEEDS OF SOME WHEAT (Triticum aestivum L.) VARIETIES
157
163
EN
Eman
A. I.
Mohamed
Seed Tech. Res. Dept., Field Crops Research Institute, ARC. Giza.
10.21608/jpp.2011.85476
Attempts were made to find methods for distinguishing seeds of four wheat varieties (Sisd 12, Sids 13, Misr 1 and Misr 2) during 2009/2010 season. Methods such as phenolic acid, ammoncial silver nitrate and ninhydrin treatments, reputed in other crops to stain different seed cultivars with different colours were undertaken. Reaction to phenolic acid and some reagents, reputed to deal with tyrosinase enzyme were tested on grain. Other trials based on chromatography techniques were undertaken. It was found that the quickest method which produced distinct differences in colour was when seeds were set on seed test paper moistened with water and exposed to phenol vapour for different concentrations and different hours, and the colour of spots were then recorded. In another treatment seed sample was placed on seed testing paper moistened with water and then exposed to ammonical silver nitrate reagent. The spots formed by Misr 1 and sids 12 seeds became yellow and seeds of Sids 13 and Misr 2 became orange yellow. Moreover, the ninhydrin test gave the best violet spots by seed of Sids 13 and Misr 2 and light violet spots by seeds of Misr 1, whereas gave the negative reaction by seeds of Sids 12. Qualitative measure standards should be further investigated based on the present findings. It could be concluded that this tests are used for discrimination among genotypes of cereal crops such as wheat, barley and rice.
https://jpp.journals.ekb.eg/article_85476.html
https://jpp.journals.ekb.eg/article_85476_2a28ab990955d1dc5bc37ef996a70256.pdf