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农学学报 ›› 2020, Vol. 10 ›› Issue (2): 12-17.doi: 10.11923/j.issn.2095-4050.cjas19020018

所属专题: 玉米

• 农艺科学 生理生化 • 上一篇    下一篇

因子分析法在玉米生产试验中的应用

孟静娇, 谢志坚, 陈国斌   

  1. 保山市农业科学研究所,云南保山 678000
  • 收稿日期:2019-02-28 修回日期:2019-05-31 出版日期:2020-02-24 发布日期:2020-02-24
  • 作者简介:孟静娇,女,1988年出生,云南大理人,硕士,主要从事玉米新品种选育与新技术研究及新品种、新技术的试验、示范、推广工作。通信地址:678000 云南省保山市隆阳区太保北路50号 保山市农业科学研究所,E-mail:mengjingjiao751@163.com。

Application of Factor Analysis in Corn Production Test

Meng Jingjiao, Xie Zhijian, Chen Guobin   

  1. Baoshan Institute of Agricultural Sciences, Baoshan 678000, Yunnan, China
  • Received:2019-02-28 Revised:2019-05-31 Online:2020-02-24 Published:2020-02-24

摘要:

为了研究因子分析法在玉米生产试验中的可行性和应用价值,探讨生产试验结果更全面科学的评价方式,使优良品种投入更高效的大面积栽培和推广,本研究对2018年田丰玉米品种联合体生产试验(中海拔组)6个参试品种(含对照种)在保山试点的生育期、农艺性状及抗病性等进行了因子分析。结果表明:前2个公因子对变异的累计贡献率达73.33%,2个独立的公因子较真实地反映了所支配的7个性状及其相互关系。第一公因子主要包含生育期、灰斑病、穗腐病、小斑病和大斑病5个性状,称为生育期和抗病性因子;第二公因子主要支配了株高和穗位高,称为主要农艺性状因子。通过计算公因子得分,6个参试品种中,‘金禾880’综合得分最低,第一公因子得分最低,栽培生产中可适时早播;‘富华9号’综合因子得分最高,第二公因子得分最高,栽培生产中可适当降低株高穗位;‘金禾玉618’综合因子得分最佳,适宜在保山市中海拔区域大面积常规化种植和推广。因子分析法用于玉米生产试验的分析与评价是可行的,在栽培上有一定的指导意义。实际生产中,可根据因子得分对各玉米品种采取具体有效的栽培措施,提高生产力和经济效益。

关键词: 玉米, 生产试验, 因子分析, 因子得分, 评价方式

Abstract:

To study the feasibility and application value of factor analysis in corn production tests and explore a more comprehensive and scientific evaluation method for test results, thus to put fine varieties in large-scale cultivation and promotion, the growth period, agronomic traits and disease resistance of 6 tested corn varieties (one as the control) of production test (middle altitude group) of Tianfeng corn variety consortium were analyzed by means of factor analysis in Baoshan in 2018. The results indicated that, the cumulative contribution rate of the first two common factors to total variation of population accounted for over 73.33%, and the two independent common factors could truly reflect the 7 traits and their relationship. The first common factor mainly included five traits of growth period, gray spot, ear rot, small spot and large spot, and was called growth period and disease resistance factor; and the second common factor was named main agronomic trait factor due to its control of plant height and ear height. Factor scoring showed that, among the 6 tested varieties, ‘Jinhe 880’ gained the lowest overall score which was related to the poorest score of the first common factor, thus it could be sown early in production; owing to the best score of the second common factor, ‘Fuhua 9’ had the highest overall score which could reduce plant height appropriately in the cultivation practice; ‘Jinheyu 618’ was suitable for expanding planting and promotion in the middle altitude region of Baoshan on the basis of its finest overall factor scoring. Factor analysis is applicable to the analysis and evaluation of corn production tests, and has some guiding significance in cultivation. With the help of factor scoring, specific and effective cultivation measures could be adopted for each variety to improve productivity and economic benefits.

Key words: Maize, Production Test, Factor Analysis, Factor Scoring, Evaluation Method

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