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为给我国小麦育种提供新的优良种质资源,对引进的21份印度小麦种质材料的农艺性状与成株期条锈病抗性进行了调查,并对农艺性状进行了主成分分析与聚类分析。结果表明,供试材料大多数为春性中熟不耐冻材料,籽粒大多为硬质且较饱满。株高小于80cm的材料有1份(DBW-14),单株穗数为15~30个的材料有18份,穗长在11~12.5cm间的材料有3份(LOK-I、RAJ-L1037和QW-273),小穗数大于30个的材料有10份,穗粒数大于45粒的材料有5份,千粒重高于40g的材料有14份。成株期对混合条锈菌种表现免疫的材料有3份(HUW234、DBW-16和HD2932),表现高抗的材料有5份。通过聚类分析将包括两个对照品种小偃22和西农979在内的23份供试材料按农艺性状综合评价值分为4类。第一类材料株高、小穗数、穗粒数和千粒重偏高,单株穗数和穗长中等;第二类材料株高、单株穗数和穗粒数较高,穗子较长,千粒重中等,小穗数偏低;第三类材料穗粒数和千粒重偏高,株高、单株穗数、穗长和小穗数偏低;第四类材料千粒重较高,株高、小穗数和穗粒数中等,单株穗数与穗长偏低。
In order to provide new excellent germplasm resources for wheat breeding in our country, the agronomic traits and stripe rust resistance of adult Indian wheat germplasm introduced from 21 were investigated, and the principal component analysis and clustering analysis. The results showed that most of the tested materials were mid-aged and unfit frozen materials, mostly hard and full grains. 1 material (DBW-14) with plant height less than 80cm, 18 materials with spikes of 15-30, and 3 materials with spike length of 11-12.5cm (LOK-I, RAJ- L1037 and QW-273), 10 spikelets greater than 30, 5 spikelets greater than 45, and 14 spikelets more than 40g. Three strains (HUW234, DBW-16 and HD2932) were found to be susceptible to P. aeruginosa at the adult stage and 5 were highly resistant. According to the cluster analysis, 23 test materials, including two control cultivars, Xiaoyan 22 and Xinong 979, were classified into 4 categories based on the agronomic traits. The first type of plant height, number of spikelets, grains per spike and 1000-grain weight were high, the number of panicle per panicle and ear length were middle. The second type had higher plant height, panicles per spike, The average grain weight and the number of spikelets were lower; the third type had the highest number of spikes per spike and 1000-grain weight, the lower the plant height, the number of panicles per plant, the spike length and the number of spikelets. The fourth type had higher 1000-grain weight, Spike number and grain number per spike, spike per panicle and spike length low.