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The effect of harvest index, yield and yield components of three varieties of black seed (Nigella sativa) in different planting densities

2012; Volume: 2; Issue: 1 Linguagem: Inglês

2228-6322

B. Abdolrahimi, Parviz Mehdikhani, A. H. G. Tappe,

Nigella sativa pharmacological applications

This study was conducted in the form of a factorial experiment in completely random blocks with 4 replications. In this research the first factor (A) was the inter row level, at intervals of 20 and 40 cm; the second factor (B) was the intra row level, at three levels of 2, 4 and 6 cm; and the third factor (C) was the three varieties of Nigella sativa Baft, Bukan, and Arbil. The specimens were planted on April 22 nd , 2009. Results showed that the effects of plant density and cultivation arrangement on weight of capsule, total weight of stem, leaf weight, seed weight, 1000-grain weight, seed efficiency and harvest index were significant. Baft cultivar had the best results for seed efficiency, but the Arbil variety had the best results for 1000-grain weight. Seed efficiencies at the inter row spacing of 20 cm, of intra row spacing of 2 cm, and Baft variety were 1920.3, 2336.9, and 2148.1 kg/ha respectively. Harvest Indexes of the intra row spacing of 6 cm, and for the Baft variety were 25.65%, and 25.84% respectively. The Baft variety planted at 20 cm inter row and 2 cm intra row spacing was overall, the most efficient planting arrangement for Nigella Sativa.