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Articles by N. N. Mastoi
Total Records ( 4 ) for N. N. Mastoi
  A. W. Baloch , A. M. Soomro , M. A. Javed , M. Ahmed , H. R. Bughio , M. S. Bughio and N. N. Mastoi
  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.
  A. W. Baloch , A. M. Soomro , M. A. Javed , M. S. Bughio and N. N. Mastoi
  Three short statured rice mutants (B-370-32, J-77-30 and SS-6) were developed through mutation breeding from three aromatic, fine grained, but tall and low yielding local varieties (Basmati-370, Jajai-77 and Sonahri Sugdasi, respectively). The mutants exhibited superiority in grain yield and quality over their parents. The number of panicles per hill, grain weight per hill and fertile grains per panicle made significant contribution to grain yield per unit area. Among the mutants, the grain yield of J-77-30 was significantly higher as compared to its parent/check varieties.
  A. M. Soomro , A. W. Baloch , M. Ahmed , M. A. Javed , H. R. Bughio , M. S. Bughio , T. Muhammad and N. N. Mastoi
  Fast neutrons (10 and 25 Gy) and gamma rays (150, 200, 250 and 300 Gy) were used to induce desirable mutations with regard to yield and quality characteristics in IR6 (non-aromatic) and Basmati-370, Jajai-77 and Sonar Sugdasi (aromatic) varieties of indica rice. Six stable mutants of non-aromatic varieties viz., IR6-252, IR6-25-1, IR6-30-1, IR6-1.0-2, IR6-1.5-2 and IR6-2.5-2 and six mutants of aromatic varieties viz., Basmati-2.5, Basmati-15-14, Basmati-20-1, Basmati-30-2, Jajai-77-2 and Sonahri Sugdasi-20-1 were evaluated in zonal trials over 9 different locations in the Province of Sindh and Balochistan. All the non-aromatic mutants except IR6-2.5-2 were significantly (P≤ 0.05) superior in yield to the parent IR6. The mutant IR6-252 had the highest paddy yield. Similarly, all the aromatic mutants except Basmati-2.5 were significantly (P≤ 0.05) superior to their respective parents and check variety. The mutant Basmati-20-1 had the highest paddy yield followed by mutant Basmati –15-14. All the mutants maintained their superiority in grain quality characters over their respective parents.
  H. R. Bughio , A. M. Soomro , A. W. Baloch , M. A. Javed , I. A. Khan , M. S. Bughio , T. Mohammad and N. N. Mastoi
  Six rice mutants along with their parents and a check variety (Super Basmati) were evaluated at eight sites to determine genetic differences and the magnitude of genotype x environment interaction (G X E) for yield potential, in Sindh province. Genotype, location, year and their interactions were highly significant. The regression coefficient (b) and deviation from regression (S2d) showed significant differences among the mutants/varieties. The mutants Bas. 20/1, Bas. 15/2, Bas. 15/14 and Sonahri Sugdasi-20 (SS-20) were superior in yield to all the entries under evaluation. On the basis of stability parameters, the mutants Basmati 20/1 and Basmati 15/14 have shown good adaptation potential under favourable as well as unfavourable environments.
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