| 不同生态型早熟大豆杂交后代生育期遗传规律分析 |
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| 引用本文： | 尚春树,程舜华.不同生态型早熟大豆杂交后代生育期遗传规律分析[J].山西农业大学学报(自然科学版),1992,12(2):125-129. |
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| 作者姓名： | 尚春树 程舜华 |
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| 作者单位： | 山西农科院作物遗传研究所 太原(尚春树)，山西农业大学 太谷(程舜华)，太原重型机械学院 太原(石冰) |
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| 摘 要： | 本文用不同生态来源6个早熟大豆品种进行了完全双列杂交。研究了F_1代生育期以及不同生育阶段亲子关系、配合力、M、S.g/M.ss比值、遗传力、遗传相关。结果表明:早熟大豆杂种F_1代F_2代生育期及各生育阶段介于双亲之间,与双亲值、中亲值相关密切。F_2代出现超亲分离。分离幅度、特殊配合力效应与双亲生态差异有关。生育期及各生育阶段m.s.g/m.s.s比值与狭义遗传力高,在早代有较好的选择效果。东北与南方均有早熟基因源,一般配合力在F_1代与F_2代之间表现基本一致。生育前期对生育期的影响稍大于生育后期,开花至成熟期对于生育期影响主要是鼓粒至成熟期的作用,而开花至鼓粒期相对作用小些,所以对早熟品种选育既注意开花早,也要求鼓粒快。
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| 关 键 词： | 生态型 早熟大豆 |
ANALYSIS ON INHERITANCE OF EARLINESS OF MATURING IN ADVANCED HYBRID GENERATIONS OF EARLY SOYBEAN VARIETIES FROM DIFFERENT ECOLOGICAL TYPES |
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| Shang Chunshu et al..ANALYSIS ON INHERITANCE OF EARLINESS OF MATURING IN ADVANCED HYBRID GENERATIONS OF EARLY SOYBEAN VARIETIES FROM DIFFERENT ECOLOGICAL TYPES[J].Journal of Shanxi Agricultural University,1992,12(2):125-129. |
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| Authors: | Shang Chunshu |
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| Abstract: | A complete dialled mating was carried out among 6 carlymaturing soybean varieties from different ecological types. The results were as follows: The growth periods of both F_1 and F_2 generations of the carlymaturing soybean hybrids were between those of their parents and sigificantly positively correlated to those of the parents and the mid—parents. The F_2 generations produced the super—parent segregation. The selection for short growth period and could be carried out short rigorously from the early generations. The effect of GCA was similal between F_1 and F_2 generations. It was pointed out that in order to select the carly maturing soybean varieties not only early flowing of the variefy but also fast swellis should be considered. |
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| Keywords: | Ecotypcs |
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