摘要
【目的】研究新疆喀什地区复播谷子主要农艺性状及产量构成因素的相关性和变异程度,为喀什地区复播谷子品种选育提供理论依据。【方法】以7个谷子品种为材料,采用方差、相关性以及主成分分析等方法分析其生育期、株高、节数、穗型等农艺性状及穗粒重等产量构成因素。【结果】不同性状间变异系数的变幅为1.74%~27.02%。各农艺性状的变异程度由大到小依次为株数、抽穗-成熟天数、穗粒重、穗数、单穗重、生育期、茎基粗、穗粗、穗长、千粒重、株高、节数、出谷率。产量与单穗重、单穗粒重、千粒重、穗长、穗粗、生育期、出谷率呈显著正相关,而与株高呈负相关。3个主成分对变异的累计贡献率达89.48%,评价谷子品种时,单穗重和穗粒重可作为首选性状。【结论】豫谷18、豫谷32、冀谷168、冀杂金苗综合表现优异,适合新疆喀什地区复播谷子适播区域种植。
【Objective】This project aims to clarify the correlation and variation degree of main agronomic traits and yield components of reseeding millet in the hope of providing theoretical basis for excavating suitable millet varieties in dry farming areas of Shule County.【Methods】Seven domestic millet varieties in different ecological regions were selected as test materials,and their fertility period,plant height,spike number,other agronomic traits and spike grain weight,were analyzed by means of variance analysis,correlation analysis and principal component analysis.【Results】Coefficient of variation between different agronomic traits ranged from 1.74%to 27.02%.The degree of variation of each agronomic trait from large to small was plant number,heading-maturity days,grain weight per ear,ear number,single ear weight,growth period,stem base diameter,ear diameter,ear length,thousand-grain weight,plant height,number of nodes,percentage of grain weight per spike.Yield was significantly positively correlated with weight per ear,grain weight per ear,1000-grain weight,ear length,ear diameter,growth period and grain yield,but negatively correlated with plant height.In the PCA,the cumulative contribution rate of the three principal components to the variation reached 89.48%,and they served as the preferred traits when evaluating the millet varieties.【Conclusion】It can be seen that Yugu 18,Yugu 32,Jigu 168,and Jizajinmiao have excellent comprehensive performance,so it is recommended to popularize them in Kashgar Prefecture.
作者
赵云
冯国郡
胡相伟
李翠梅
李鹏兵
阿克博塔·木合亚提
柏玲
ZHAO Yun;FENG Guojun;HU Xiangwei;LI Cuimei;LI Pengbing;Akbota Muheyati;BAI Ling(Institute of Food Crops,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;Agriculture and Rural Affairs Bureau of Shule County,Shule Xinjiang 844202,China;Institute of Microbiology,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;College of Agronomy,Xinjing Agricultural University,Urumqi 830052,China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2023年第10期2453-2460,共8页
Xinjiang Agricultural Sciences
基金
高产优质抗除草剂谷子品种的引进筛选及示范推广(2020E0209)
国家谷子高粱产业技术体系乌鲁木齐综合试验站(CARS-06-14.5-B30)。
关键词
复播谷子
相关分析
农艺性状
产量
reseeding millet
correlation analysis
agronomic traits
yield
