摘要
分析花生主要农艺性状与产量的内在联系,为选育高产花生品种提供理论依据。本研究以2017年河南省花生联合体区试为试验数据,进行关联度分析、通径分析、主成分分析和TOPSIS综合评价。结果表明,单株果重的变异系数最大为18.14%,生育期的变异系数最小为0.22%。产量与饱果率呈极显著正相关,与单株果重、百果重呈显著正相关,但与主茎高、侧枝长、结果枝数和生育期呈负相关。关联度分析表明,饱果率、单株果重、生育期和百果重是影响产量的主要因素;通径分析表明,单株果重是影响产量的关键性状;主成分分析发现,将11个农艺性状综合成产量、株型和熟性3个主成分因子,可解释花生农艺性状原始数据信息量的81.1885%;TOPSIS分析表明,商花21号和商花23号与综合向量距离最大。综上,在选育高产花生品种时,应重点提高单株果重、饱果率和百果重,适当降低株高、总分枝数和结果枝数。
To provide a theoretical basis for high-yield breeding,the inner relationship between the main agronomic traits and the yield of peanut cultivars analyzed by gray correlation analysis,path analysis,principal component analysis,and TOPSIS analysis in Henan Province in 2017.The results showed that the maximum variable coefficient of pod weight per plant was 18.14%,while the variable coefficient of the growth period was the lowest to 0.22%.The pod yield had a significant positive correlation with three characteristics,including full pod rate,pod weight per plant,and 100-pod weight,but a negative correlation with plant height,branch length,effective branches,and growth period.Gray correlation analysis showed that full pod rate and pod weight per plant,growth period,and 100-pod weight were primary factors affecting pod yield.Path analysis indicated that pod weight per plant(p=1.1349)was the key trait affecting pod weight.The principal component analysis found that the 11 traits were consolidated into 3 principal component factors,including yield,plant type,and maturity,which accounted for 81.1885%of the total variation.TOPSIS analysis showed that the distance between Shanghua 21,and Shanghua 23 and the integrated vector was the largest.In summary,for breeding high-yielding peanut varieties,attention should be paid to improving pod weight per plant,full pod rate,and 100-pod weight,but plant height,branch plant,and effective branches should reduce appropriately.
作者
邓陈威
雷亚柯
展世杰
张建航
马振威
杨亚洲
王伟杰
贾朝阳
DENG Chen-wei;Lei Ya-ke;ZHAN Shi-jie;ZHANG Jian-hang;MA Zhen-wei;YANG Ya-zhou;WANG Wei-jie;JIA Chao-yang(Zhoukou Academy of Agricultural Sciences,Zhoukou 466001,China)
出处
《山东农业大学学报（自然科学版）》
北大核心
2023年第2期194-200,共7页
Journal of Shandong Agricultural University：Natural Science Edition
基金
周口市科技局院士工作站后补资金项目(20203637)。
关键词
花生
农艺性状
综合评价
Peanut
agronomic characters
comprehensive evaluation
