春谷子农艺和品质性状的变异分析

摘要

为有效利用糯谷子种质材料，以引进的53份谷子为材料，采用 SAS9．0软件对其农艺和品质性状的变异进行分析。主要结果如下：农艺性状的变异幅度为5．7％～36．08％，其中穗粒重的变异幅度最大（C ．V 为36．08％），生育日数的变异幅度最小（5．7％）。株高与穗长、节数呈极显著正相关，与叶片数、穗下节间长呈显著正相关，但与穗粒重呈显著负相关。穗越紧，穗下节间和穗毛越短。采用类平均法，在欧式距离4．1148，将供试材料聚为八大类，其中第二、第三和第八类群共25份材料为高产潜力组合类型。非糯、低直链淀粉和糯质类型频率分别为24．5％、60．4％和0。丰谷12、利谷21等16份材料的糊化温度为70℃～74℃（碱消值在4～5），频率为30．2％。赤谷10号、利谷21等29份材料（频率54．7％）的胶稠度大于115 cm 。%In order to effectively utilize waxy millet germplasms ,fifty-three millet strains were used for analysis on variation of agronomic and quality traits by SAS9 .0 software .Main results were as follows :Variability range of agronomic traits were 5 .7% ~ 36 .08% .Variability of grain weight per spike was the highest than that of the other thaits associated with variation coefficient of 36 .08% ,but that of mature days was the smallest with 5 .7% .The plant height had signifi-cantly positive correlation with ear length ,pitch numer ,the numer of leaves ,lenght of internode under spike ,but had significantly negative correlation with grain weight .The more firm in ear firmness ,the more there was short in lenght of internode under spike and ear hair length .The tested strains were divided into eight groups using class average method at euclidean distance 4 .1148 .Of which ,the second ,third and eighth groups had higher yield potential with 25 cultivars . The frequency of nonwaxy ,low amylase content and waxy type were 24 .5% ,60 .4% and 0 respectively .The pasting temperature was 70 ℃ ~ 74 ℃ (shared 30 .2% ) in 15 millet strains such as in Fenggu 12 ,Ligu 21 and so on ,associated with alkali value in 4 ~ 5 .Gel consistency was above 115 cm (shared 54 .7% ) in 29 millet strains such as Chigu 10 , Ligu 21 and so on .