TY - JOUR ID - 23010 TI - Interrelationships among grain yield and related characters of four oilseed rape (Brassica napus L.) cultivars under drought stress conditions JO - Desert JA - JDESERT LA - en SN - 2008-0875 AU - Naderi, R. AU - Emam, Y. AD - PhD student, College of Agriculture, Shiraz University, Iran AD - Professor, College of Agriculture, Shiraz University, Iran Y1 - 2010 PY - 2010 VL - 15 IS - 2 SP - 133 EP - 138 KW - Cultivar selection KW - Drought stress KW - factor analysis KW - oilseed rape KW - Path analysis DO - 10.22059/jdesert.2011.23010 N2 - Four rapeseed cultivars (Hayola 401, Hayola 308, RGS and Option) were evaluated for some physiological traits under stress (50 % field capacity (FC) and non-stress (irrigated) conditions. The factorial set of treatments was arranged within a randomized complete block design with three replications. The collected data were analyzed using path and factor analyses. These is results showed that based on correlation coefficient, path and factor analysis number of seeds per silique was the best criteria for rapeseed cultivar selection under non-stress conditions and silique length, number of seeds per silique and photosynthesis rate at flowering stage were the best criteria for selection and yield improvement under stress conditions. Our results also indicated that selection based on simple correlation may not be efficient. The results of this study may guide breeders to introduce suitable drought resistant rapeseed cultivars for arid regions. UR - https://jdesert.ut.ac.ir/article_23010.html L1 - https://jdesert.ut.ac.ir/article_23010_fb5cbc9b4118143e4f2abc400725327d.pdf ER -