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引言六十年代中期以来,高粱杂交种种植面积占到全国高粱总种植面积70%以上,我省约占高粱面积的90%以上。为了进一步提高高粱杂交种的产量和质量,有必要对高粱杂交种产量性状的杂种优势,进行较为全面系统的估计和分析,进一步认识其遗传传递规律,掌握高粱杂交种在不同产量性状上的杂种优势,以利指导高粱育种研究和高粱的杂种优势利用。材料和方法本试验于1981年在本所进行,以晋杂5号、晋杂4号、7501A×三台忻和几个新高粱杂交种及其亲本为材料。对高粱杂交种株高、穗长、千粒重、干穗重、穗粒重、茎秆重、粒秆比、总干物质产量等性状进行调查。取样除恢复系每样取5株以外,其余均取10株。穗部枝
Introduction Since the mid-1960s, the planting area of sorghum hybrids has accounted for more than 70% of the total planting area of sorghum in our country, and our province accounts for more than 90% of the sorghum area. In order to further improve the yield and quality of sorghum hybrids, it is necessary to carry out a more comprehensive and systematic estimation and analysis of the heterosis of sorghum hybrid yield traits, to further understand the law of genetic transmission, to master hybrids of sorghum hybrids with different yield traits Advantages, to facilitate the study of sorghum breeding and utilization of sorghum heterosis. MATERIALS AND METHODS The experiment was carried out in 1981 in our institute. The materials of Jinza 5, Jinza 4, 7501A × SanTaiXin and several new sorghum hybrids and their parents were studied. The characteristics of sorghum hybrid plant height, spike length, 1000-grain weight, dry ear weight, spike weight, stalk weight, grain-stem ratio and total dry matter yield were investigated. In addition to sampling each restorer line 5 samples taken, the rest were taken 10. Spike branches