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高粱高产杂交种穗结构的遗传分析 被引量:1

Genetic Analysis on Panicle Characters of High Yield Sorghum Hybrid
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摘要 采用完全双列杂交法对高粱49个基因型的8个穗部性状进行了遗传相关分析。结果表明:千粒重的遗传力较高,而穗粒数的遗传力则相对较低。可以通过对二三级枝梗数的选择来间接选择穗粒数。虽然大穗、大粒型杂交种都有高产的例证,但理想的高产杂交种却是大穗和大粒的兼顾与协调。因而合理的高产穗结构应是在相对较高的千粒重前提下,相应增加二,三级枝梗数。 Hereditary correlation analysis was made on 8 panicle characters in 49 sorghum genotypes in a complete diallel cross. The results indicated that the hereditary of 1000 kernel weight was high and that of panicle kernel number was relatively low. The selection for high kernel number can be realized by indirect selection for high secondary and tertiary branch numbers. Although high yield can be achieved by breeding for either 'big grain' or 'big panicle' hybrids, a desirable hybrid is the one with the compromise between the kernel weight and kernel number.Therefore, the appropriate panicle structure should be the relatively high kernel weight as well as increased numbers of secondary and tertiary branches.
出处 《山西农业科学》 1995年第4期17-21,共5页 Journal of Shanxi Agricultural Sciences
关键词 高粱 杂交种 穗部性状 遗传相关分析 Sorghum Hybrid Panicle character
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参考文献4

  • 1高士杰.高粱几个农艺性状的相关和通径分析[J].东北农业科学,1984,36(3):65-67. 被引量:7
  • 2高士杰.高粱杂种一代性状间及优势强度间的相关分析[J]作物学报,1984(02).
  • 3肖振德,王淑朵,鄢锡勋,朱振新.高粱主要性状配合力及遗传力的初步分析[J]黑龙江农业科学,1983(04).
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