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Asian Journal of Plant Sciences
Year: 2002  |  Volume: 1  |  Issue: 2  |  Page No.: 153 - 155

Fruiting Position Impact on Seedcotton Yield in American Cotton

Rehana Anjum, A. R. Soomro, Saira Bano, M.A. Chang and A. M. Leghari    

Abstract: Impact of fruiting positions on Seed cotton yield was studied in four commercially grown varieties of Sindh in an experiment conducted during 1996 cotton season. The first fruiting position contributed significantly highest percentage of the total seed cotton yield and number of bolls per plant in all the four cultivars ranging from 22.49 to 43.24 and 22.74 to 42.11 percent, respectively. Similarly, the second fruiting posrdon ranked second in order and contributed 16.87 to 28.68 and 17.81 to 28.15 percent of the total seed cotton yield and number of bolls per plant, respectively in all the cultivars. The results demonstrated that the first four positions on sympodial branches were more important than the remaining fruiting positions as their contribution ranged from 63.66 to 93.86 percent in case of seed cotton yield per plant and 65.35 to 92.46 percent in case of number of bolls per plant. The remaining four positions contributed 5.21 to 16.04 percent seedcotton yield and 6.60 to 16.29 percent number of bolls per plant. The monopodial branch was considered as the ninth position and it is very interesting to note that only in case of Reshmi, the ninth position contributed significantly highest percent of seedcotton yield and number of bolls per plant 20.30 and 18.36 respectively than all other varieties and collectively contribution of 5th to 8th positions. Thus from the cotton management point of view the first four positions were most important.

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