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Article
Effect of foliar application of two amino acids "arginine and cysteine" and potassium nitrate on the growth and yield of the tomato plants grown in plastic houses

Authors: Awatif N. Jerry --- Talib M. M. AL-Jarah
Journal: Kufa Journal for Agricultural Sciences مجلة الكوفة للعلوم الزراعية ISSN: 20727798 23128186 Year: 2015 Volume: 7 Issue: 2 Pages: 16-35
Publisher: University of Kufa جامعة الكوفة

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Abstract

An experiment was conducted during the winter growing season of 2013/2014 inunheated plastic house conditions belonging to tomato development project in Khor Al-Zubair / Agriculture Directorate of Basrah. The aim was to study the effect of foliarspraying of the aim was to study the effect of foliar spraying of two amino acids (arginineand cysteine) and potassium nitrate (KNO3) on s growth and yield of tomatoLycopersicon esculentum Mill. cultivar" Wogdan". The study included fifteen treatmentswhich were the combinations of five treatments [i.e. Amino acids arginine and cysteineat (75 and 150) mg. l-1 of each of them in addition to the control treatment (used wateronly)] and KNO3, at three concentrations (0 ,1.0 and 1.5) g. l-1 applied by spraying fourtimes at 15-day intervals started three weeks after transplanting.Results showed that spraying with arginine at both concentrations and cysteine at75 mg. l-1 significantly increased leaf area per plant as compared with control treatment.Spraying with arginine at 150 mg. l-1 gave the highest values for nitrogen, potassiumconcentrations, whereas spraying with arginine at 75 mg. l-1 gave the highest value forphosphorus concentration in the leaves. Spraying with arginine at both concentrations andcysteine at 75 mg. l-1 significantly increased total soluble carbohydrate in the leavesspraying with arginine and cysteine at 75 mg .l-1 of each of them increased fruit settingpercentage as compared with control treatment. Spraying with arginine and cysteine at 75mg .l-1 of each of them increased early yield per plant as much as 11.12 and 10.31%, andtotal yield per plant as much as 13.12 and 11.87 % as compared with the controltreatment, respectively.Spraying with KNO3 at 1 and 1.5 g. l-1 significantly increased all parameter studies ascompared with control. The most effective treatment was 1.5 g. l-1 KNO3.


Article
THE ROLE OF SPRAYING NITROGEN ON GROWTH AND NUTRITIONAL VALUE OF FRUITS IN DIFFERENT TOMATO GENOTYPES
دور الرش بالنتروجين في النمو والقيمة الغذائية لثمار تراكيب وراثية مختلفة من الطماطة

Authors: I. J. Abdul Rasool ايمان جابر عبد الرسول --- Sh. T. Habeeb شيماء ذياب عبد حبيب
Journal: Iraqi Journal of Agricultural Science مجلة العلوم الزراعية العراقية ISSN: 00750530/24100862 Year: 2016 Volume: 47 Issue: 7 - special issue Pages: 82-90
Publisher: Baghdad University جامعة بغداد

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Abstract

An experiment was conducted at the field of the Department of Horticulture and Landscape Gardening, College of Agriculture, University of Baghdad during the spring season of 2012 to evaluate Nitrogen (Urea) foliar application at four concentrations 0 , 1.5 , 3 , and 4.5 g/L-1 and six tomato genotypes ,OLKA , JINAN, SUN, GS12, BAHGAT (Lycopersicon esculentum Mill) and wild type (Lycopersicon pimpinillifolium). The experiment was carried out according to the split–plot experimental design with three replications in order to determine the best concentration of urea along with the best genotype(s) respond to the treatments. Results showed Spraying with 4.5 g. L-1 (Urea) gave significant response in terms of number of main branches (4.98 branch. Plant -1), leaf area (229.11 decm2.Plant-1), total chlorophyll (261.86 mg. 100g-1 fresh weight), early flowering (27.83 day), acidity, T.S.S. and nitrogen in fruits (0.23, 4.01 and 2.26%, respectively). The Interaction of the same concentration with GS12 gave the best average of total chlorophyll and T.S.S. of (306.22 mg. 100g-1 fresh weight and 4.70% respectively) in addition to early flowering and fruit set of (25.33 and 31.67 day respectively).

اجريت تجربة في الحقل المكشوف التابع لقسم البستنة وهندسة الحدائق – كلية الزراعة جامعة بغداد خلال الموسم الربيعي 2012 لتقييم رش اربعـــــــة تراكيز من اليوريا 0, 1.5 . 3 . 4.5 غم / لتر على نباتات ستــــــــة تراكيب وراثيـــــــــــــــــة من الطماطـــــــــــــــــــــــة هي:,OLKA , JINAN, SUN, GS12, BAHGAT (Lycopersicon esculentum Mill) and wild type (Lycopersicon pimpinillifolium). . نفذت النجربة وفق تصميم الالواح المنشقة وبثلاث مكررات بهدف تحديد افضل تركيز من اليوريا وافضل تركيب وراثي يستجيب لمعاملات الرش. أظهرت نتائج الدراسة تفوق معاملة رش اليوريا بتركيز 4.5 غم . لتر-1 معنوياً في عدد الأفرع الرئيسة (4.98 فرع) و المساحة الورقية (229.11 دسم2.نبات-1) والكلوروفيل الكلي (261.86 ملغم100 غم وزن طري-1) والتبكير بالتزهير (27.83 يومًا) و النسبة المئوية لكل من الحموضة والمواد الصلبة الذائبة الكلية والنتروجين في الثمار(0.23 و 4.01 و 2.26 % على الترتيب). ادى التداخل معاملة الرش باليوريا بالتركيز ذاته التركيب الوراثي جي اس 12 الى اعطاء اعلى قيمة للكلوروفيل الكلي والنسبة المئوية للمواد الصلبة الذائبة (306.22 ملغم.100 غم وزن طازج-1 و 4.70% على الترتيب) بالاضافة الى التبكير بالتزهير والعقد (25.33 و 31.67 يوم على الترتيب).

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