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Correlation and Path Coefficient Analysis of some Quantitative Traits with Grain Yield in Bread Wheat (Triticum Aestivum L.) Genotypes under Normal and Saline Conditions, in the Northern Sudan

المصدر: مجلة جامعة دنقلا للبحوث العلمية
الناشر: جامعة دنقلا - كلية الدراسات العليا
المؤلف الرئيسي: Hamza, Fatih E. A. (Author)
المجلد/العدد: مج8, ع15
محكمة: نعم
الدولة: السودان
التاريخ الميلادي: 2018
الشهر: يونيو
الصفحات: 47 - 58
رقم MD: 1200671
نوع المحتوى: بحوث ومقالات
اللغة: الإنجليزية
قواعد المعلومات: EduSearch, HumanIndex
مواضيع:
كلمات المؤلف المفتاحية:
Correlation Coefficient | Path Analysis | Bread Wheat | Grain Yield | Salinity Stress
رابط المحتوى:
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المستخلص: Salinity stress is one of the most important abiotic stresses which reduce the crop production in worldwide and breeding for salinity tolerance may result in improving wheat grain yield under saline conditions in arid and semi-arid areas agriculture. This research was carried out in 2008/09, 2009/10 and 2010/11 crop seasons at Merowe Research Station Farm in Northern state of Sudan. Sixteen bread wheat genotypes were evaluated under non-saline (normal) and saline field conditions. The experimental design was Randomized Complete Block with three and five replications in the non - saline and saline sites, respectively. The aim of research was to determine correlation coefficients between yield and yield-related traits and to identify direct and indirect effects of characters on grain yield. Based on the results of this study, in both sites the correlation coefficients revealed that, Positive and highly significant correlations estimates were detected between grain yield and each of number of spikes per m2, plant height and days to 90 % maturity. On the other hand, 1000 – grain weight showed negative correlation with grain yield at saline site. In saline site, the analysis of path coefficient revealed maximum direct contribution towards grain yield with number of spikes per m2 followed by number of grains per spike. Hence, emphasis should be given to select these two traits to increase the production and productivity of wheat under saline soil conditions. While, the number of spikes per m2 , number of grains per spike, 1000 – grain weight and days to 50 % heading was the most important traits which direct effects on grain yield and could be used as a selection criteria in wheat breeding program under non – saline soil conditions.