Ma JifengZhao Zhenw en.STUDIES ON VARIATION AND INHERITANCE OF MAJORAGRONOMIC CHARACTERS OF SOUTHERN SPRINGSOYBEANS IN DIFFERENT SOWING SEASONS[J].Soybean Science,1998,17(04):331-339.[doi:10.11861/j.issn.1000-9841.1998.04.0331]
南方春大豆不同播季主要农艺性状的变化及其遗传研究
- Title:
- STUDIES ON VARIATION AND INHERITANCE OF MAJORAGRONOMIC CHARACTERS OF SOUTHERN SPRINGSOYBEANS IN DIFFERENT SOWING SEASONS
- 文献标志码:
- A
- 摘要:
- 本文以12个南方春大豆早熟品种(系)和12个中熟品种(系)为材料,进行春、秋播试验,研究主要农艺性状的秋播变异率、遗传变异系数、遗传力和遗传进度,结果表明: 1、两熟期组秋播变异率平均,除分枝起点为负值以外,其它11个性状在2. 36% - 52. 88%之间,说明秋播对这些性状均有一定影响; 熟期组之间各性状秋播变异率的大小亦存在较大差异,如秋播对早熟组株高、主茎节数、结荚节数、结荚高度、主茎荚数和百粒重的影响比中熟组相对较小,而秋播对分枝起点和分枝荚数的影响则比中熟组相对较大。2、同一性状不同熟期组和不同品种间的遗传变异系数大小差异较大。3、早熟组的株高、三粒荚、百粒重,中熟组的百粒重,春播、秋播以及春、秋播互作的遗传力均在70%以上,说明这些性状分别于春播、秋播进行单季选择,或春、秋播联合进行选择的可靠性均容易保证。4、在秋播条件下,早熟组的株高、分枝数、结荚高度、主茎荚数、单株荚数与中熟组的结荚节数、主茎荚数、单株荚数、一、二、三粒荚和百粒重的遗传力均高于春播,遗传进度的分析亦与此完全相吻合,说明秋播对这些性状进行选择的可靠性比春播好。
- Abstract:
- The major agro nomic characters of Southern spring soy beans w ere studied on thei rautumn sowing v ariation, co ef ficient of genetic va ria tion, heri tabi li ty and g enetic gainby w ay of sow ing two di fferent maturi ty g roups o f Southern spring soy beans including12 early ma turing and 12 medium maturing v arieties o r lines in tw o dif ferent seasons, i.e. , spring a nd autumn. The result s show ed that:1. Except bra nch begins heigh t, all the o ther ll cha racters had a po sitiv e va ria tion of2. 36% - 52. 88% in autumn sowing v ariatio n rate in bo th maturity g roups, which indicatestha t sow ing in autumn ha s some effect s o n al l these cha racters. There also existeddi fferences in autumn sow ing rate o f the cha racters betw een the two maturity g roups, e.g. , autumn sow ing had a w eaker ef fect o n pla nt height , nodes of main stem, effectiv enodes, basal pod heigh t, pods of main stem and 100- seed w eig ht w hi le a st rong er effecto n branch begins heig ht and po ds per branch in early ma turing cultiv ars than in mediummaturing o nes.2. The co ef ficient s o f genetic v ariatio n of the same cha tacters v aried g reat ly w ithdi fferent cul tiv ars and maturi ty g ro ups.3. The heritabilities of plant heig ht , three- seed pods and 100- seed w eigh t in earlymaturing cultiv ars and 100- seed w eight in medium maturi ty g roup w ere al l ov er 70%rega rdless of the sow ing seasons of the cultiva rs, indicating that selection to these charactersis effectiv e in spring o r autumn o r bo th sowing seasons.4. The heritabilities and genetic g ains of pla nt heigh t, number of bra nches, basalpod heigh t, po ds o n main stem, pods per plant in early ma turi ty g roup and tho se o f effective nodes, pods o n main stem, one- , tw o- and three- seed pods and 100- seedw eight in medium maturi ty g ro up w ere higher in autumn sowing season than tho se inspring sowing season, which sug gests that selectio n to these cha ra ters has a better effectin autumn sowing season than in spring season.
参考文献/References:
[1 ] 马育华, 1982, 植物育种的数量遗传学基础,江苏农业出版社
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