热带作物学报2025，Vol.46Issue(1)：94-105,12.DOI:10.3969/j.issn.1000-2561.2025.01.010
广西河八王种质资源考察收集与鉴定评价
Collection,Identification and Evaluation of Narenga porphyrocoma Germplasm Resources in Guangxi
摘要
Abstract
Guangxi spans the southern subtropics and central subtropics,with the Tropic of Cancer crossing the central part of the province,and belongs to the subtropical monsoon climate zone,which breeds rich wild sugarcane germplasm re-sources.From 2016 to 2023,Sugarcane Research Institute,Guangxi Academy of Agricultural Sciences organized a team of researchers to carry out systematic surveys and collection of Narenga porphyrocoma germplasm resources in Guangxi.The team collected a total of 58 copies of N.porphyrocoma germplasm resources in 43 townships of 18 cities and dis-tricts in Guangxi.The results showed that the N.porphyrocoma germplasm resources in Guangxi were mainly distrib-uted in the area of 60.0-602.5 m above sea level,longitude E:107°08′01″-111°32′02″,latitude N:23°08′02″-26°01′43″.The genetic diversity indices of the 20 descriptive quality traits of N.porphyrocoma germplasm resources in Guangxi ranged from 0 to 1.2044,with a mean value of 0.5557,in which the diversity of the color of the internodes after expo-sure was the highest,that of the cork was lower,and the diversity of the three traits of stem shape,aerial roots and water splitting was not reflected;the genetic diversity indices of N.porphyrocoma germplasm resources in Guangxi of the different collection areas ranged from 0.1040 to 0.4911,with Hezhou being the highest and Baise being the lowest.The phenotypic traits of N.porphyrocoma germplasm resources in Guangxi were rich in variation,and the coefficients of variation for six quantitative traits ranged from 17.3%to 53.6%,with an average of 34.8%;the coefficients of variation of N.porphyrocoma germplasm resources in Guangxi from different collection areas ranged from 29.4%to 36.9%,with Hechi being the largest and Guilin being the smallest.The results of cluster analysis showed that the 58 N.porphyro-coma germplasm resources in Guangxi were classified into six major groups,but were not closely related to the geo-graphical origin,in which the materials in the first major group had better overall traits and excellent biomass and qual-ity traits.The collection expanded the number of resources in Guangxi Sugarcane Germplasm Repository and would provide excellent genetic resources for sugarcane breeding and genetic improvement.关键词
河八王/甘蔗/种质资源/表型性状/鉴定评价/遗传多样性Key words
Narenga porphyrocoma/sugarcane/germplasm resources/phenotypic traits/identification and evaluation/genetic diversity分类
农业科学引用本文复制引用
宗文一,陆衫羽,杨细平,段维兴,张保青,张革民,黄玉新,杨翠芳,周珊,高轶静,熊发前,刘菁..广西河八王种质资源考察收集与鉴定评价[J].热带作物学报,2025,46(1):94-105,12.基金项目
国家重点研发计划项目(No.2021YFD1200204) （No.2021YFD1200204）
国家自然科学基金项目(No.31901510) （No.31901510）
广西农业科学院科技发展基金项目(桂农科2022JM10). （桂农科2022JM10）
