新开垦条件下(吉萨95 ×超级吉萨86)埃及棉杂交品种籽棉产量选择的响应

M. Salem, H. Mahrous,, H. K. Hussein
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引用次数: 0

摘要

在El Minia西部Mallawy农业研究站,在2019、2020和2021三个夏季新开垦土地条件下,对杂交吉萨95 x超级吉萨86棉花分离群体中的籽棉产量植株-1进行了选择。f2代籽棉单株产量在16.40 ~ 186.00 gm范围内,表明籽棉产量的有效选择能力。条目的均方选择标准;f4代籽棉产量、单株皮棉产量和单株铃数均达到极显著水平。籽棉产量、皮棉产量/株和枝/株遗传力均高于82.71%。两个家庭;6号和9号在f4代籽棉产量、单株皮棉产量和单株铃数上均高于优良亲本吉萨95和散装样品。四个选定家庭编号处理2、6、9和20的籽棉单株产量较处理体积分别显著(p≤0.05或0.01)提高19.26%、50.03%、32.16%和64.26%。单株棉籽产量与单株皮棉产量、单株铃数分别呈0.99、0.97和0.95的显著正相关。此外,与铃重、籽粒均匀度、皮棉呈低正相关
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Response to Selection for Seed Cotton Yield of (Giza 95 x Super Giza 86) Egyptian Cotton Cross under Newly Reclaimed Lands Conditions
Selection for seed cotton yield plant -1 in a segregating population of cotton of cross Giza 95 x Super Giza 86 was applied under new reclaimed lands conditions for three summer season, 2019, 2020 and 2021 at Mallawy Agriculture Research station, west of El Minia. The wide range of seed cotton yield/plant in the F 2 -generation from 16.40 to 186.00 gm. Indicating ability effective selection for seed cotton yield. Entries mean squares of the selection criterion; seed cotton yield and lint yield/plant and number of bolls/plant were high significant in F 4 generation. Estimates higher than 82.71% of heritability for the seed cotton yield, lint yield/plant and branches/plant. Two families; No. 6 and 9 were higher than the better parent Giza 95 and bulk sample in each of seed cotton yield, lint yield/plant and number of bolls /plant in the F 4 -generation. Four selected families no. 2, 6, 9 and 20 were showed significant (p≤0.05 or 0.01) increase compared to the bulk in seed cotton yield/plant by 19.26, 50.03, 32.16 and 64.26%, respectively. The seed cotton yield per plant showed strong positive genotypic and phenotypic correlation with each of lint yield per plant by 0.99 and bolls number/plant 0.97 and 0.95, respectively. Moreover, low positive correlation with boll weight, seed uniformity lint
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