PATH ANALYSES OF YIELD AND YIELD-RELATED TRAITS OF COMMON VETCH (Vicia sativa L.) UNDER DIFFERENT RAINFALL CONDITIONS

Yıl 2006, Cilt: 21 Sayı: 1, 27 - 32, 15.02.2006

Sebahattin Albayrak Özgür Töngel

Öz

This research was conducted to determine characters effecting seed yield in common vetch varieties by using simple correlation coefficient, path analysis and stepwise analysis under different rainfall conditions (high, middle and low; 707.9, 597.1, and 319.5 mm, respectively). The experiment design were randomized block design with three replications. Experiments were established in Çarşamba, Bafra and Gökhöyük in the growing season of 2003-2004. Seed yield was significantly correlated with harvest index and days to maturity in high and middle rainfall conditions. It was significantly correlated with all components except pod number and 1000-seed weight in low rainfall conditions. Harvest index and biologic yield had substantial direct effects on enhancement of seed yield under all rainfall conditions. Stepwise multiple regression analysis showed that 95.78 % of total variation in seed yield could be explained by the variation in biologic yield, pod number, days to maturity and harvest index in high rainfall conditions. It showed that 98.21 and 98.24 % of total variations in seed yield could be explained by the variation in biologic yield, pod number and harvest index in middle and low rainfall conditions respectively. Results suggest that harvest index and biologic yield are primary selection criteria for improving seed yield in common vetch in the high, middle and low rainfall conditions

Anahtar Kelimeler

Common vetch, seed yield and components, correlation coefficient, path and stepwise analyses

Kaynakça

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