Evaluation of Inherited Resistance Genes of Bacterial Leaf Blight, Blast and Drought Tolerance in Improved Rice Lines  

作　　者：Ibrahim Silas AKOS Mohd Y.RAFII Mohd Razi ISMAIL Shairul Izan RAMLEE Noraziyah Abd Aziz SHAMSUDIN Asfaliza RAMLI Samuel Chibuike CHUKWU Senesie SWARAY Momodu JALLOH 

机构地区：[1]Laboratory of Climate-Smart Food Crop Production,Institute of Tropical Agriculture and Food Security,Universiti Putra Malaysia,Serdang 43400,Selangor,Malaysia [2]Department of Crop Science,Faculty of Agriculture,Kaduna State University,801 Kafanchan,Kaduna 801139,Nigeria [3]Department of Crop Science,Faculty of Agriculture,Universiti Putra Malaysia,Serdang 43400,Selangor,Malaysia [4]School of Environmental and Natural Resource Sciences,Faculty of Science and Technology,Universiti Kebangsaan Malaysia,Bangi 43600,Selangor,Malaysia [5]Rice Research Centre,Malaysian Agricultural Research and Development Institute,Serdang 43400,Selangor,Malaysia

出　　处：《Rice science》2021年第3期279-288,共10页水稻科学（英文版）

基　　金：supported by the Higher Institution Centre of Excellence(HiCoE)Research Grant(Grant No.6369105)。

摘　　要：Improved rice lines were developed frome three parents with the resistance or tolerance to bacterial leaf blight,blast and drought stress,respectively,using single-,double-and three-way crosses.The improved lines were assessed for agro-morphological and yield traits under non-drought stress(NS)and reproductive-stage drought stress(RS)treatments.The mean comparison of traits measured between parent plants and progenies(improved lines)were similar,and there were significant and non-significant differences among the parents and improved lines(genotypes)under NS and RS.Smilarly,there was significant and non-significant differences in the interaction among both parent varieties and improved lines for NS and RS.Cluster and 3D-model of principal component analysis did not generate categorical clusters according to crossing methods,and there were no exclusive crossing method inclined variations under the treatments.The improved lines were high-yielding,disease resistant,and drought-tolerant compared with their parents.All the crossing methods were good for this crop improvement program without preference to any,despite the number of genes introgressed.

关 键 词：RICE bacteria leaf blight BLAST drought tolerance resistance gene 

分 类 号：S435.11[农业科学—农业昆虫与害虫防治]