Evaluation for Yield, Yield Components, and Some Agronomic Traits of Natural Color Cotton Elite Lines (Gossypium hirsutum L.)
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Abstract
This study was conducted to evaluate the yield potential, yield components and some agronomic traits of 8 natural color cotton elite lines, which were improved by the National Corn and Sorghum Research Center [NCSRC], tested with 2 check varieties; Dora11, and Srisumrong60 in the early rainy season of 2022 at the NCSRC, Faculty of Agriculture, Kasetsart University, Nakhon Ratchasima Province, Thailand. The randomized complete block design [RCBD] with 3 replications was used with 25 plants/row, 4 rows/experimental unit, and data were recorded from middle row. It was found that 9 of 11 recorded traits of the tested cotton varieties/lines were significantly different. It comprised no. of days to 50% boll opening (107-114 days), plant ht (135-164 cm), no. of vegetative branch (1.2-3.4 branches/plant), no. of fruiting branch (12.3-14.6 branches/plant), seed wt (8.2-13.4 g/100 seeds), boll wt (4.28-5.71 g/boll), seed cotton yield (194-262 kg/rai), cotton lint yield (70-108 kg/rai), and ginning outturn (30.9-41.9%). While no. of days to 50% flowering (53-55 days) and no. of boll/plant (51.7-58.3 balls/plant) had a non-significant difference. The result of this study indicated that natural color cotton lines W535, W537 and W536 had a trend for higher lint yield than Dora11, Srisumrong60. The lint yields were 108, 105, 103, 93 and 80 kg/rai, respectively. While other 5 natural color lines had lint yield of 70-94 kg/rai.
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King Mongkut's Agricultural Journal
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