<<登录旧系统审稿   登录新系统审稿>>

建议您登录自己的邮箱点击审稿链接进入审稿系统 ×
首页 学报新闻 学报概况 编委会 专家库 学术影响 投稿指南 审核流程 标准规范 下载专区 投诉邮箱 联系我们 EngLish

正文 您当前的位置:首页》正文

基于主成分分析和模糊评价法的苦瓜耐冷性综合鉴定与评价
作者: 陈小凤1  2  黄如葵1  2 *  梁家作1  黄熊娟1  黄玉辉1  2  陈振东1  2  
冯诚诚1
  2  刘杏连1  秦 健1  2  
单位: (1 广西农业科学院 蔬菜研究所  南宁 530007;2 广西作物遗传改良生物技术重点开放实验室  南宁 530007)  
关键词: 苦瓜  耐冷性鉴定  主成分分析  模糊评价法  
分类号:S642.5
出版年,卷(期):页码:2016 ,47 ( 5 ): 页码:677-681
摘要:

【目的】综合鉴定及评价苦瓜的耐冷性,为苦瓜耐冷性资源筛选提供参考依据。【方法】在低温条件下测定17份苦瓜资源的发芽势、活力指数、冷害指数及花粉萌发率等指标,利用主成分分析和模糊评价法中的隶属函数进行耐冷性排序,结合两种方法的排序结果,进一步采用主成分值、隶属函数值与原始数据进行聚类分析,综合鉴定及评价苦瓜资源的耐冷性。【结果】主成分分析结果显示,活力指数和冷害指数对苦瓜耐冷性具有较高载荷,其系数分别为0.795和0.923,可作为苦瓜耐冷性鉴定的重要指标;结合主成分值、隶属函数值排序,可将供试的17份苦瓜资源耐冷性聚类为高度低温敏感型、中度低温敏感型、低温敏感型、耐冷型、中度耐冷型和高度耐冷型6种类型。【结论】基于主成分分析和模糊评价法建立的苦瓜耐冷性综合鉴定与评价体系适用于苦瓜资源耐冷性鉴定与评价。

【Objective】The chilling tolerance of bitter gourd was identified and evaluated, in order to provide references for screening chilling-resistant materials. 【Method】Under low-temperature conditions, the germination potential, seed vigor index, chilling injury index, pollen germination rate of seventeen bitter gourd materials were determined. Then the chilling-tolerances of seventeen bitter gourd materials were ranked based on principal components analysis(PCA) and membership function of fuzzy evaluation method, respectively. According to ranking result of both methods, seventeen bitter gourd materials were clustered to identify and evaluate chilling-tolerance of bitter gourd based on principal component values(PCV), membership function values(MFV) and original data. 【Result】The principal component analysis showed that, the seed vigor index and chilling injury index for chilling-tolerance of bitter gourd had higher load, with coefficients of 0.795 and 0.923, so they could be used as important indexes for identifying chilling-tolerance of bitter gourd. The chilling-tolerances of seventeen bitter gourd were classified into six types based on membership function value and principal component value. The first type was highly sensitive to low temperature, the second type was moderately sensitive to low temperature, the third type was lowly sensitive to low temperature, the fourth type was chilling-tolerant, the fifth type was moderately chilling-tolerant, the sixth type was highly chilling-tolerant. 【Conclusion】The established identification and evaluation system of bitter gourd based on PCA and fuzzy evaluation method is suitable for evaluating chilling-tolerance of bitter gourd.

基金项目:
作者简介:
参考文献:
服务与反馈:
文章下载】【加入收藏
总浏览数: 8 2 9 2 3 8 5  今日总人数: 7 1 0 9
主办:广西农业科学院    地址:广西南宁市大学东路174号   邮政编码:530007
电话:(+86)-771-3243905; (+86)-771-3244920   电子邮箱:nfnyxb@163.com
Copyright © 2011 Nfnyxb.com, All Rights Reserved  版权所有©2011《南方农业学报》编辑部   
 本系统由北京博思汇文数字科技有限公司设计开发 技术服务电话:13520358590

;