应用多元分析法综合评价胡麻材料抗旱适应性

Evaluation of the Adaptability of Flax Drought Resistance Based on Multiple Statistics Analysis

以16份目前国内主要胡麻抗旱品种及优良品系为试验材料,用晋亚10号为对照,设自然干旱和正常灌溉2个处理,对各材料的株高、工艺长度、分茎数等9项形态指标进行比较,同时结合亚麻酸含量、含油率,通过计算抗旱系数、隶属函数值以及抗旱性度量值(D值)来比较品种(系)的抗旱性,最终利用D值的大小来对品种(系)的抗旱适应性进行评价和聚类,大致分为3类。最终筛选出抗旱适应性强的2075-20、冀张亚1号、423、24005-8、伊亚6号、9718、内亚9号、内44、坝选3号、陇亚10号是适合山西大同地区种植的胡麻品种(系)。

16 major domestic flax varieties and superior strains were used as experiment materials and Jinya 10 as the control in our study to evaluate nine main agronomic traits including plant height, processing length and the number of stem under natural drought and normal irrigation in Datong. The drought resistance of the species was compared by calculating the drought resistance coefficient combined with linolenic acid, oil content, the subordinate function value and the drought resistance comprehensive evaluation values（D value）. According to the D value, the drought-resistant adaptability of the species was evaluated and grouped into three categories. In conclusion, the varieties with strong adaptability to drought were selected out： 2075-20, Jizhangya 1, 423, 24005-8, Yiya 6, 9718, Neiya 9, Nei 44, Baxuan 3 and Longya 10 as recommended flax varieties to be planted in Datong region of Shanxi.