湖北稻茬小麦新品种(系)孕穗期耐渍性的鉴定与评价  

Evaluation of Waterlogging Tolerance of Wheat Varieties at Booting Stage in Hubei Rice-Wheat Rotation System

作　　者：佟汉文[1] 高春保[1,2] 邹娟[1] 刘易科[1] 朱展望[1] 陈泠[1] 张宇庆[1] 吴波[1] 

机构地区：[1]湖北省农业科学院粮食作物研究所/农业部华中地区小麦病害生物学科学观测实验站/湖北省小麦工程技术研究中心,湖北武汉430064 [2]主要粮食作物产业化湖北省协同创新中心,湖北荆州434025

出　　处：《麦类作物学报》2016年第12期1635-1642,共8页Journal of Triticeae Crops

基　　金：农业部现代小麦产业技术体系项目(nycytx-03);湖北省农业科技创新中心资助项目(2007-620-001-03)

摘　　要：为了解湖北近期选育的稻茬小麦新品系孕穗期耐渍性状的表现,在2013-2015年度采用灌水处理模拟田间渍害,对2013-2014年度湖北省和长江中下游小麦区域试验参试材料为主的小麦品种(系)进行了孕穗期耐渍性的鉴定和隶属函数综合评价。结果表明,渍水胁迫对小麦性状的抑制作用表现为主茎绿叶数>籽粒产量>SPAD值>千粒重>穗粒重>穗下茎长>株高>穗粒数>小穗数>穗长。在供试材料中,鄂麦155、鄂麦170、851、荆麦41、宁麦0898、宁麦09-72、华麦1168、扬麦20、郑麦122、扬麦10G47和庆麦914的耐渍性综合评价值高于耐渍对照品种农林46。通过聚类分析将参试材料划分为高耐渍、耐渍、中等耐渍和低耐渍4个类群,材料数分别为8、13、14和2个,分别占参试材料的21.62%、35.14%、37.84%和5.41%。耐渍性综合评价值与主茎绿叶数呈显著正相关(P<0.05),与穗粒重、千粒重、SPAD值和主茎绿叶数的耐渍系数均呈显著(P<0.05)或极显著(P<0.01)正相关。To understand waterlogging tolerance of wheat varieties（lines） at booting stage in Hubei rice-wheat rotation system, thirty-seven wheat varieties（lines） mainly from the official regional experi- ments in Hubei province and the middle and lower reaches of Yangtze River were identified and evalu- ated in 2013-2015 through simulating field waterlogging by irrigation. The comprehensive evaluation value（D value） transformed by a few related traits was used in waterlogging tolerance evaluation. Measured traits inhibited by waterlogging were number of green leaves per main shoot（NGLMS）〉 grain yield（GY） 〉 SPAD〉 1 000-grain weight （TGW） 〉 grain weight per spike （GWS） 〉 stem stalk （SS） 〉plant height（PH） 〉 grain number per spike（GNS） 〉 spikelet number per spike（SNS） 〉 spike length（SL）. Based on D value, Emai 155, Emai 170,851, Jingmai 41, Ningmai 0898, Ningmai 09-72, Huamai 1168,Yangmai 20,Zhengmai 122,Yangmai 10G47 and Qingmai 1914 were more tolerant to waterlogging than Nonglin 46, which is an internationally recognized waterlogging tolerant wheat vari- ety. Four categories divided by system clustering were high tolerance（8 materials, 21.62 %）, tolerance（13 materials, 35. 14 〉）, moderate tolerance （ 14 materals, 37. 84 〉 ）, and low tolerance （2 materials, 5.41〉）. D value had significant positive correlation with NGLMS at 0.05 level,and had slgnificant positive correlation with WTC（waterlogging tolerance coefficient） of GWS,TGW,SPAD and NGLMS at 0.05 or 0.01 level.

关 键 词：湖北稻茬小麦 孕穗期 耐渍性 鉴定与评价 

分 类 号：S512.1[农业科学—作物学] S311