南方农业学报2017，Vol.48Issue(3)：393-400,8.DOI:10.3969/j:issn.2095-1191.2017.03.003
31份木薯种质资源的鉴定评价及遗传多样性分析
Identification, evaluation and genetic diversity analysis of 31 cassava germplasm resources
摘要
Abstract
[Objective]The germplasm resources with good traits were screened out from the tested cassava germplasm resources to provide parents for breeding of excellent domestic cassava varieties. [Method]Botanical characteristics,agro-nomic characteristics and hydrocyanic acid content of 31 cassava germplasm resources from home and aboard were evaluated, and genetic diversity analysis on related traits were also conducted. [Result]In 31 cassava germplasm resources, rich genetic diversities were presented in leaf shape, leaf color, lobe number, color of petiole,color of leaf vein, color of ma-ture main stem outer bark, color of mature main stem inner bark,growth of stem, plant shape,branch angle, plant height, height of main stem, diameter of main stem, root tuber distribution,root tuber concentration,root tuber shape,color of root tuber outer bark, color of root tuber inner bark and color of root pulp. From the 31 cassava germplasm resources, 13 germplasm resources with good plant shape were selected, four germplasm resources with fresh root tuber yield per plant>2800.00 g were selected. Ten germplasm resources with hydrocyanic acid content<50.00 mg/kg, two with fresh root tuber yield per plant≥2901.75 g, harvest index≥0.74 and hydrocyanic acid content≤28.86 mg/kg were selected. [Conclu-sion]The 31 cassava germplasm resources enjoy rich genetic diversity. Two germplasm resources with high yield, high harvest index and low hydrocyanic acid content were screened out, which can be used in edible cassave variety breeding as key materials.关键词
木薯/种质资源/鉴定评价/遗传多样性Key words
cassava/germplasm resource/identification and evaluation/genetic diversity分类
农业科技引用本文复制引用
谢向誉,陆柳英,曾文丹,赖大欣,严华兵..31份木薯种质资源的鉴定评价及遗传多样性分析[J].南方农业学报,2017,48(3):393-400,8.基金项目
南宁市科学研究与技术开发计划项目(20152081) （20152081）
广西农业科学院基本科研业务专项项目(桂农科2016YM17) （桂农科2016YM17）
