CIMMYT引进春小麦品系综合性状评价  

Evaluation of spring wheat lines from CIMMYT in Gansu

作　　者：戎伟[1,2] 马小乐[1,2] 尚勋武[1,2] 王化俊[1,2] 刘娟[1,2] 车卓[1,2] 

机构地区：[1]甘肃省作物改良和种质创新重点实验室,甘肃兰州730070 [2]甘肃农业大学农学院,甘肃兰州730070

出　　处：《甘肃农业大学学报》2009年第3期64-69,共6页Journal of Gansu Agricultural University

基　　金：国家支撑计划(2007BAD52B08);甘肃省攻关项目(2GS064-A41-006-01);甘肃省农牧厅生物技术专项(GNSW-2007-01)

摘　　要：对从国际玉米小麦改良中心（CIMMYT）引进的120份春小麦新品系综合性状进行了评价，并对各性状之间的相关性进行了分析．结果表明：农艺性状中除株高偏高外，其余性状表现良好，其中产量高于‘甘春20’（7300kg·hm^-2）的材料有48份，最高产量达到98,50kg·hm^-2；蛋白质含量、湿面筋含量、沉降值和变形功的变异范围分别为8．90％～15．80％、14．94％～34．35％、12．00-78．20mL和77．00-465．00EJ．相关分析结果表明，农艺性状间，只有穗粒数与穗长、小穗数呈较强的正相关，其余性状间为弱相关；品质性状间，变形功与弹性、沉降值呈强正相关，干面筋含量与面筋指数呈强负相关，其余性状间为弱相关；农艺性状与品质性状之间为弱相关．The main agronomic traits and main quality traits were evaluated of 120 new spring wheat lines from Centro International de Mejoramientode Maizy Trigo（CIMMYT）. The results indicated that the performance of the introduced lines for agronomic traits was desirable in Gansu, especially in yield, except for plant height. The yield of 48 lines was higher than local major variety ＇Ganchun 20＇（7 300 kg · hm-2. The highest yield reached 9 850 kg · hm-2. The variable range of these lines for protein content ranged from 8.90% to 15.80 %, for wet gluten content from 14. 94 % to 34. 35 %, for sedimentation value from 12.00 to 78.20 mL, and baking strength from 77.00 to 465.00 EJ, respectively. The correlation analysis showed that a significant positive correlation was revealed for grains per spike with spike length and spikelets per spike. And baking strength displayed strong positive correlation with flexibility and sedimentation value. And strong negative correlation was observed between dry gluten content and gluten index. No significant correlations were found among most of other agronomic traits and quality ones.

关 键 词：春小麦 农艺性状 品质性状 相关分析 

分 类 号：S512.12[农业科学—作物学]