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为探讨杂交大豆制种最佳的父母本行比、行距配置,提高制种产量,以大豆细胞质雄性不育系JLCMS34A和恢复系JLR11为材料,于2011和2012年在吉林省洮南市进行田间试验。试验设45 cm和65 cm 2种行距,父母本1∶1、1∶2、1∶3和1∶4共4种行比,研究了8种处理对制种产量的影响,并对构成产量的主要因素进行分析。结果表明:行距45 cm的制种产量显著高于65 cm行距处理,并随着母本行数增加,制种产量显著提高;以行距45 cm、父母本行比1∶4处理的制种产量(1 396.7 kg·hm-2)最高,较行距65 cm、父母本行比1∶2的常规种植模式提高35.0%。在吉林省洮南地区适当缩小垄距、增加母本行数可减少单株荚数和单株粒数,增加百粒重,并显著提高制种产量。
In order to explore the optimal ratio of parents to line spacing and row spacing in hybrid soybean production and to increase the seed production, the cytoplasmic male sterile line JLCMS34A and restorer line JLR11 were used as materials in 2011 and 2012 in Taonan City, Jilin Province test. The effects of 8 treatments on the seed yield were studied with 45 rows and 65 cm 2 row spacing, 1: 1, 1: 2, 1: 3 and 1: 4 parental ratios. The main factors for analysis. The results showed that the seed yield of 45 cm row spacing was significantly higher than that of 65 cm row spacing, and the yield of seed row increased significantly with the increase of female parent rows. The seed yield of 45 cm row spacing and 1: (1 396.7 kg · hm-2) was the highest, with a distance of 65 cm, and 35.0% higher than that in the parental line. In the Taonan area of Jilin Province, the appropriate reduction of ridge distance and increase of the number of female parent lines can reduce the number of pods per plant and the number of grains per plant, increase the grain weight per 100 seeds and significantly increase the seed production.