谷子杂交种早衰对产量构成的影响研究  

Effect of Premature Senility on Yield Component of Millet Hybrids

作　　者：麻慧芳[1] 杨成元[1] 史关燕[1] 陈瑛[1] 

机构地区：[1]山西省农业科学院经济作物研究所,山西汾阳032200

出　　处：《中国农学通报》2016年第9期83-86,共4页Chinese Agricultural Science Bulletin

基　　金：山西省农院科技攻关项目"优质杂交谷抗早衰的生理探索研究"(YGG1411);现代农业产业技术体系专项资金项目"国家谷子糜子产业技术体系汾阳综合试验站"(CARS-07-12.5-B5);国家科技支撑计划项目"春谷晚熟区优质高产高效技术集成与示范"(2014BA07B01-03)

摘　　要：为了研究探索早衰对谷子杂交种产量构成的影响。本试验采用完全随机区组设计,用多重比较及聚类分析的方法,对山西省农业科学院经济作物研究所自育的8个杂交种和‘晋谷49号’的产量构成因素与早衰程度的相关性做出分析。结果表明,对照在早衰最轻的前提下产量最高,其余参试材料的产量随着早衰的加剧逐步减产,减产幅度在12.35%-36.14%之间。并且早衰程度与穗粒重、千粒重、产量呈极显著负相关。早衰现象与杂交种的亲本不育源存在一定的相关性。可见,早衰严重影响谷子杂交种的产量,在选育品种时应尽量选择优良、品质好的抗早衰遗传基因。In order to study the effect of premature senility on yield components of millet hybrids, the studyadopted a randomized complete block design with eight hybrids（bred by Crop Research Institute, ShanxiAcademy of Agricultural Sciences） and the‘Millet 49＇, and the correlations of yield components and degree ofpremature senility were analyzed with multiple comparisons and cluster analysis. The results showed that thecontrol had the highest yield under the lightest degree of premature senility. The yields of other materialsgradually declined as the premature senility was intensified, and the reduction of the yield ranged from12.35%-36.14%. There were significantly negative correlations between the degree of premature senility andgrain weight per ear, thousand kernel weight and yield. The premature senility had some correlations withparent infertility of the hybrids. In conclusion, the premature senility seriously affected the yield of the millethybrids, so we should choose the anti- premature senility genes with good quality.

关 键 词：谷子杂交种 产量构成因素 早衰程度 

分 类 号：S3[农业科学—农艺学]