COMPONENTS OF SEED AND STRAW YIELD IN COMMON VETCH (VICIA-SATIVA L)

178 common vetch (Vicia sativa L.) strains were tested for 2 years und er dryland conditions in Bursa, Turkey. Broad-sense heritability of th e traits was calculated for each trait. Phenotypic and genotypic corre lation coefficients between seed and straw yield, with several morphol ogical and reproductive traits, were obtained. Broad-sense heritabilit y estimates were high for 1000-seed weight and number of seeds per pod . Heritability values for both seed and straw yield were small and ins ignificant. Harvest index, 1000-seed weight and spring vigour showed s ignificant positive correlations with seed yield, but days to flower c orrelated negatively with seed yield. Spring vigour, plant height and number of leaflets per leaf correlated positively, while harvest index , seeds per pod and seeds per plant correlated negatively with straw y ield. Correlations between seed and straw yield were both positive and significant.