首页|Evaluation of yield and yield related traits to determine earliness in cotton (Gossypium hirsutum L.)
Evaluation of yield and yield related traits to determine earliness in cotton (Gossypium hirsutum L.)
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NSTL
The present research was carried out with the aim to identify short duration cotton from existing germplasm. Bartlett's earliness index showed that the genotype BC 0335 had the highest (0.95) value which was rated as the early genotype followed by BC0319 and BC 0366 (0.93). Days to first flowering ranges from 49 (BC 0483, SR/L 36) to 68 (BC 0276, BC 0390) days among the genotypes and first boll opening required 100 (BC 0358) to 141 (BC 0074) days. The genotype SR/L 17 produced ls< sympodial branch at the lowest node number of 5.94 followed by BC 0349 (6.22) and BC 0335 (6.31). The highest and the lowest sympodial branches per plant were found in BC 0382 (24.03) and BC 0294 (12.2), respectively. The genotype BC 0318 (35.67) and BC 0374 (35.64) produced the maximum bolls/plant and boll retention percentage was more than 80 per cent in the genotype BC 0366 (85.80%), CB 14 (82.78%), SR/L 17 (81.53%) and SR/L 26 (81.12%). The genotype BC 0314 had the highest single boll weight (5.96g) which was closelyfollowed by Win All 6 (5.93g). The highest 1st picking percentage (84.75 %) was observed in the genotype BC 0335 and the lowest (43.48 %) in BC 0501. The genotype BC 0476 gave the highest ginning outturn percentage (GOT %) of 45.68, which was closely followed by BC 0482 (44.60%), BC 0119 (44%) and SR 15 (44%). Among 100 genotypes BC 0358 gave the highest yield of 2.84 t/ha with minimum days to boll opening (100 days) indicated the earliest high yielding genotype. Positive and significant correlation was observed between plant height, sympodial branches/plant, secondary fruiting branches/plant, bolls/plant and seed cotton yield indicates that these traits are able to enhance the yield.
NSTL
