Study of Variation in Some Agronomic and Anatomic Characters of Nigella sativa Landraces in Khorasan

The 28 landraces of Nigella sativa were collected from Khorasan province in 1997-1999 and cultivated in the randomized complete blocks design. Morphological and anatomic characters were analyzed during the plant growth and other agronomic characters were measured after harvesting. Significant differences (P<0.01) were observed in plant height, weight of 1000 kernel, seed yield, number of stem branches, vascular bundles, weight of capsule and xylem and phloem diameter were significant at P2=0.977 confirmed the seed yield variation. Biological yield, HI and stem branches had maximum inheritability and genetic efficiency.