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化杀杂种小麦优势表现分析
Analysis on the Heterosis of Winter Wheat Hybrids Induced by a Chemical Hybridizing Agent
【摘要】 利用化学杂交剂SC2053 诱导的小麦不育系为母本,与4 个品质优良的丰产品种配制组合108 个,研究了29 个组合各性状的优势表现。结果表明,F1 各性状的杂种优势依次为主穗长> 千粒重> 主穗粒数> 主穗结实小穗数> 公顷穗数> 株高。通过试验,筛选出6 个强优势组合。
【Abstract】 A wheat sterile induced by a chemical hybridizing agent SC2053 was used as female parent to combine with 4 improved varieties to make up 108 combinations. The superiorities of 29 combinations’ characters were studied. The sequence of heterosis of the characters of F 1 was as following: the length of mainhead>the weight of 1 000 grains>grains per mainhead>fruit bearing spikelets per main head>spikes per hectare>plant height. 6 best combinations were selected from the experiment.
【关键词】 冬小麦;
农艺性状;
超亲优势;
超标优势;
【Key words】 Winter wheat; Agronomical charcaters; Heterosis surpassing the parents; Heterosis surpassing the standard;
【Key words】 Winter wheat; Agronomical charcaters; Heterosis surpassing the parents; Heterosis surpassing the standard;
【基金】 山西省科委科技攻关项目!(961001)
- 【文献出处】 山西农业科学 ,JOURNAL OF SHANXI AGRICULTURAL SCIENCES , 编辑部邮箱 ,2000年01期
- 【分类号】S512.103
- 【被引频次】15
- 【下载频次】41