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Articles by Naushad Ali
Total Records ( 4 ) for Naushad Ali
  Abdul Wahab Nassimi , Raziuddin , Sardar Ali , Ghulam Hassan and Naushad Ali
  Combining ability analysis of eight Brassica napus L. genotypes was estimated using diallel crosses. Analysis of variance for genotypes revealed highly significant differences (p=<0.01) for all traits. Components of combining ability analysis exhibited that, GCA was highly significant (p=<0.01) for 50% flowering, number of primary branches/plant and number of pods main/raceme, while non-significant for maturity and plant height whereas SCA and RCA effects were highly significant for all traits. GCA effects were higher than SCA and RCA for majority of the traits indicating that additive gene effects controlled the expression of these traits. RCA effects were greater than GCA and SCA for maturity showing that reciprocal crosses have higher potential than direct crosses for this trait. The parent genotypes NUR1, NUR2, NUR4, NUR7 and NUR8 and hybrids NUR1 x NUR3, NUR2 x NUR3, NUR2 x NUR4, NUR2 x NUR8, NUR4 x NUR2, NUR7 x NUR1, NUR8 x NUR2, NUR8 x NUR3 and NUR9 x NUR4 had higher GCA and SCA effects, respectively therefore could be used to develop early maturing, medium height and high yielding lines.
  Abdul Wahab Nassimi , Raziuddin , Sardar Ali and Naushad Ali
  To estimate mid-parent and better-parent heterosis in Brassica napus L. an experiment was conducted at NWFP Agricultural University, Peshawar, during 2004-05 and 2005-06 using 8x8 full diallel crosses. All the 56 F1 hybrids and their parents were planted in a randomized complete block design with three replications. Out of 56 hybrids, negative mid-parent and better-parent heterosis were estimated in 28 and 25 hybrids for 50% emergence, in 30 and 17 hybrids for 50% flowering, in 34 and 49 hybrids for physiological maturity and in 27 and 38 hybrids for plant height, respectively whereas positive heterosis were estimated in 28 and 23 crosses for primary/branches plant. However, significant negative mid-parent and better-parent heterosis were recorded in 6 and 7 hybrids for 50% emergence, in 17 and 04 for 50% flowering, in 11 and 20 for physiological maturity, in 27 and 36 for plant height while significantly positive heterosis was recorded in 27 and 23 crosses for primary branches/plant, respectively. Better-parent heterosis reduced to 25% for emergence, 2.78% for flowering, 4.08% for maturity and 21.22% for plant height whereas it reached to 50% for branches/plant. Among parents, NUR1, NUR2, NUR4, NUR5 and NUR9 were found superior when used in different cross combinations. Hybrids NUR3xNUR4, NUR5xNUR1 and NUR5xNUR7 could be used to develop early maturing while NUR3xNUR2 and NUR5xNUR8 would be helpful to develop medium sized with robust structured brassica lines that could be tolerant to lodging with greater yields.
  Abdul Wahab Nassimi , Raziuddin and Naushad Ali
  To estimate heterosis over mid-parent and better-parent of F1 hybrids in Brassica napus L. an experiment was conducted during 2004-05 and 2005-06 using 8x8 full diallel crosses. All the 56 F1 hybrids and their parents were planted in a randomized complete block design with three replications. Out of 56 hybrids, positive mid-parent and better-parent heterosis were found in 44 and 32 hybrids for number of pods/raceme, in 27 and 19 hybrids for number of pods/plant, in 27 and 15 hybrids for pod length, in 26 and 20 hybrids for number of seeds/pod, in 50 and 39 crosses for 1000-seed weightand in 21 and 07 crosses for yield/plant. However, significant positive mid-parent and better-parent heterotic effects were recorded in 44 and 32 hybrids for pods/raceme, in 26 and 19 hybrids for pods/plant, in 11 and 09 hybrids for pod length, in 21 and 20 hybrids for seeds/pod and in 07 and 04 crosses for 1000-seed weight. Better-parent heterosis reached to 66.67% for pods/raceme, 60.85% for pods/plant, 16.03% for pod length, 27.27% for seeds/pod, 54.62% for 1000-seed weight and 1.02% for grain yield. Among parents, NUR1, NUR4, NUR5, NUR7, NUR8 and NUR9 proved to be superior when used as parents in most of the hybrid combinations. Crosses NUR1xNUR7, NUR1x NUR9, NUR5x NUR4, NUR4xNUR9, NUR3xNUR9 and NUR8xNUR9 were best for yield associated traits and their further utilization in breeding programmes would be useful for developing high yielding genotypes.
  Abdul Wahab Nassimi , Raziuddin , Naushad Ali , Sardar Ali and Jehan Bakht
  For determination of good combiners in Brassica napus L. genotypes, a study was conducted 8x8 diallel during 2004-05 and 2005-06. F1s and parents were evaluated for combining ability for yield associated traits. Analysis of variance revealed highly significant differences (p≤0.01) for all traits. Components of combining ability analysis exhibited that, GCA was highly significant (p≤0.01) for number of seeds/plant, while significant (p≤0.05) for number of pods/plant and pod length whereas non-significant for 1000 seed weight and seed yield/plant. SCA and RCA effects were highly significant for all traits. GCA effects were higher than SCA and RCA for number of pods/plant and number of seeds/pod indicating that additive gene effects controlled the expression of these traits. The SCA effects were of greater magnitude than GCA effects for 1000 seed weight showing the contribution of non-additive gene effects. RCA effects were greater than GCA and SCA for number of pods/plant and seed yield/plant showing that reciprocal crosses have higher potential than direct crosses for these traits. The parent genotypes NUR1, NUR3, NUR4 and NUR9 and hybrids NUR1xNUR7, NUR2xNUR1, NUR2xNUR8, NUR3xNUR1, NUR3xNUR9, NUR4xNUR7, NUR5xNUR2, NUR5xNUR8, NUR7xNUR4 and NUR8xNUR1 had higher GCA and SCA effects, respectively therefore could be exploited for further selection of high yielding progenies. The overall study revealed the importance of both additive and non-additive genetic variability suggesting the use of integrated breeding strategies which can efficiently utilize the additive as well as non-additive genetic variability.
 
 
 
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