DETERMINATION OF OPTIMUM TILLER NUMBER PER PLANT IN WHEAT (CULTIVAR KAUZ-S)

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BAKHSHANDEH A.

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Journal: THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA) Year:1999 | Volume:22 | Issue:1 Page(s): 0-0

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Title

DETERMINATION OF OPTIMUM TILLER NUMBER PER PLANT IN WHEAT (CULTIVAR KAUZ-S)

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BAKHSHANDEH A. | Issue Writer Certificate

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Abstract

Number of fertile tillers per unit area is one of the most important components which determine grain yield. Since grain yield of main stem obviously higher than that of tillers and because tillers are depended on main stem assimilates during early stage of growth, it has been suggested that the role of tillers in grain yield is negligible. When aborted unfertile tillers may translocate their assimilate into main stem and therefore, some believe that the presence of certain number of tillers may ensure an acceptable yield. However, suitable number of tillers depend on environmental as agronomic conditions. An experiment was conducted in 1375 (1996) in Ahwaz to evaluate the optimum number of tillers in bread wheat (cultivar kauz-s). The experimental design was a split plot and replicated four times. Main plots consisted of 3 sowing rates of 100, 300, and 500 seeds m-2. Subplots were allocated to 4 tiller removal; a) no tiller removal (control), b) removing all tillers, c) and d) removing all except 2 and 1 tiller, respectively. Tillers were carefully removed by hand upon emergence. In control treatment, tillering started 28 days after planting (DAP) and reached to their maximum number in all densities 56 days after planting and declined then after. Contribution of first, second, and third tillers in final dry matter were different in all treatments. In general, the contribution declined as plant densities and / or number of tillers per plant increased. Number of seeds per main spike as well as first and second tillers and also number of tillers per plant. Seed weight was the only yield component that was not affected by the different treatments. The results of this experiment revealed that high tillering cultivars may show higher yields only if they produce limited number of tillers and in a limits time period. In other word, tillering may not compensate lower plant numbers per unit area when seeding rate is low.

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APA: Copy

BAKHSHANDEH, A.. (1999). DETERMINATION OF OPTIMUM TILLER NUMBER PER PLANT IN WHEAT (CULTIVAR KAUZ-S) . THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), 22(1), 0-0. SID. https://sid.ir/paper/532180/en

Vancouver: Copy

BAKHSHANDEH A.. DETERMINATION OF OPTIMUM TILLER NUMBER PER PLANT IN WHEAT (CULTIVAR KAUZ-S) . THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA)[Internet]. 1999;22(1):0-0. Available from: https://sid.ir/paper/532180/en

IEEE: Copy

A. BAKHSHANDEH, “DETERMINATION OF OPTIMUM TILLER NUMBER PER PLANT IN WHEAT (CULTIVAR KAUZ-S) ,” THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), vol. 22, no. 1, pp. 0–0, 1999, [Online]. Available: https://sid.ir/paper/532180/en

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