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Asian Journal of Plant Sciences
Year: 2002  |  Volume: 1  |  Issue: 1  |  Page No.: 25 - 27

Optimum Plant Density for High Yield in Rice (Oryza sativa L.)

A. W. Baloch, A. M. Soomro, M. A. Javed, M. Ahmed, H. R. Bughio, M. S. Bughio and N. N. Mastoi    

Abstract: Three mutant strains Basmati 370-32, Jajai 77-30 and Sonahri Sugdasi-6 along with their respective mother varieties Basmati 370, Jajai 77, Sonahri Sugdasi and check variety Basmati 385 were evaluated under different plant population (spacings, 20 x 20 cm2, 22.5 x 22.5 cm2 and 25 x 25cm2 between plant and rows) for grain yield and yield contributing parameters. An increase in spacing induced vigorous plant growth as well as increased the number of panicles per hill, grain yield per hill, filled grains per panicle and 1000 grain weight. The spacing 22.5 x 22.5 cm2 proved more appropriate because it produced better plant stand, gave more panicle density and higher grain yield than other two spacings. The mutant strains Jajai 77-30 produced significantly higher grain yield at all spacings as compared with all other entries.

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