CAJ | 학술논문

以33份木薯种质为材料，采用盆栽方法对其进行反复干旱-复水处理，测定株高、茎径、叶片数量和主根数量，并通过方差、相关性和聚类分析，对其耐旱性进行归类。结果表明：33份木薯种质株高、茎径、叶片数量、主根数量的变幅分别为19.5～52.3 cm、3.46～5.90 mm、10.0～17.7片/株、14.0～56.0条/株，试验材料遗传背景丰富，代表性强；土壤含水量与株高、茎径、叶片数量、主根数量相关性均不显著；通过聚类分析可将33份种质分为4类，Ⅳ类仅ZM8316一份种质，其各项表型性状指标均处于较高水平；其次是Ⅲ类，包括CMR35-22-196、 A234、 SC5、 D346、 F709、 C381、 C322。
이33빈목서충질위재료，채용분재방법대기진행반복간한-복수처리，측정주고、경경、협편수량화주근수량，병통과방차、상관성화취류분석，대기내한성진행귀류。결과표명：33빈목서충질주고、경경、협편수량、주근수량적변폭분별위19.5～52.3 cm、3.46～5.90 mm、10.0～17.7편/주、14.0～56.0조/주，시험재료유전배경봉부，대표성강；토양함수량여주고、경경、협편수량、주근수량상관성균불현저；통과취류분석가장33빈충질분위4류，Ⅳ류부ZM8316일빈충질，기각항표형성상지표균처우교고수평；기차시Ⅲ류，포괄CMR35-22-196、 A234、 SC5、 D346、 F709、 C381、 C322。
The potted experiment under repeated drying-wetting alternation condition was conducted in Tropical Crops Genetics Resources Institute, CATAS, Hainan, P. R. of China. 4 phenotypic characters were measured to classify the drought tolerance of 33 cassava germplasms through variance analysis, correlation analysis and cluster analysis. The results indicated that the plant height, stem diameter, number of leaves, number of roots of 33 cassava germplasms were 19.5~52.3 cm, 3.46~5.90 mm, 10.0~17.7 per plant, 14.0~56.0 per plant, respectively, it explained that the genetic background of the germplasms was abundant and typical. The correlation coefficient between soil water content and the 4 phenotypic characters wasn't significant. The cluster analysis showed that all germplasms could be divided into 4 types, the Ⅳ type was only ZM8316 which phenotypic character values were higher, next was the Ⅲ type that included CMR35-22-196, A234, SC5, D346, F709, C381 and C322.