主成分分析法综合评价桂夏7号适宜播期  

Comprehensive Evaluation of the Suitable Sowing Date of Summer Soybeans Guixia 7 by Principal Component Analysis

作　　者：郭昌永 陈渊[2] 梁江[2] 郭小红[2] 陈文杰[2] 韦清源[2] 汤复跃[2] GUO Changyong;CHEN Yuan;LIANG Jiang;GUO Xiaohong;CHEN Wenjie;WEI Qingyuan;TANG Fuyue(Tian'e of Agricultural Technology Extension Station,Hechi Guangxi 547300,China;Cash Crops Research Institute,Guangxi Academy of Agricultural Sciences/Nanning Comprehensive Station of Nation Soybean Industry Technology,Nanning 530007,China)

机构地区：[1]天峨县农业技术推广站,广西河池547300 [2]广西农业科学院经济作物研究所/国家大豆产业技术体系南宁综合试验站,南宁530007

出　　处：《耕作与栽培》2022年第2期17-21,共5页Tillage and Cultivation

基　　金：国家现代农业产业技术体系建设专项(CARS-04-CES 30);广西重点研发计划(桂科AB 18221057);广西农业科学院稳定资助科研团队项目(2021 YT 055)。

摘　　要：为提高广西大豆单产水平,以广西夏大豆主栽品种桂夏7号为试验材料,通过6个播期处理(B1、B2、B3、B4、B5和B6),采用主成分分析法综合评价广西桂夏7号适宜播期。结果表明,将6个不同播期的10个农艺性状转换为2个相互独立的综合指标,代表了全部数据的93.474%信息量;各播期综合得分大于0的播期依次为B3、B2和B1,综合评价出桂夏7号适宜播期为6月5日至6月25日。In order to improve the yield of soybean in Guangxi,Guixia 7 was main cultivar,and used as the test material.Through 6 sowing date treatments(B1,B2,B3,B4,B5 and B6),and the principal component analysis method was used for synthesis to evaluate the suitable sowing date of the new summer soybean varieties in Guangxi.The results showed that 10 agronomic traits of 6 different sowing dates were converted into 2 mutually independent comprehensive indicators through principal component analysis,it could represented 93.474%of the information of all data.Sowing dates with a comprehensive score greater than 0 were B3,B2 and B1,respectively.The suitable sowing period for Guangxi summer soybeans Guixia 7 was from June 5th to June 25th.

关 键 词：桂夏7号 播期 主成分分析 综合评价 

分 类 号：S565.1[农业科学—作物学]