Developing herbicide resistant Sri-lankan rice(Oryza sativa L.)varieties:An application of Self Organizing Map
作者机构：Department of BotanyThe Open University of Sri LankaP.O.Box 21NawalaSri Lanka Institutes of BiochemistryMolecular Biology and BiotechnologyUniversity of ColomboSri Lanka
出 版 物：《Information Processing in Agriculture》 (农业信息处理（英文）)
年 卷 期：2017年第4卷第2期
页 面：140-149页
核心收录：
学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0907[农学-林学] 0908[农学-水产] 0905[农学-畜牧学] 0707[理学-海洋科学] 0906[农学-兽医学] 0829[工学-林业工程] 09[农学] 0901[农学-作物学] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：The research grant provided by the National Research Council(NRC) Sri Lanka(Grant No.NRC 12-037)is greatly appreciated
主 题：Ethyl Methyl Sulfonate Glyphosate Herbicide resistance Oryza sativa Self-Organizing Map
摘 要：Application of high concentrations of post-emergent broad spectrum systemic herbicide,glyphosate is prevalently used to control rice weeds in Asian countries including Sri *** target movements of glyphosate adversely affect growth of the rice plant reducing the *** herbicide resistance(HR)in cultivated rice is a novel approach to enhance selectivity and crop *** on induced HR in Sri Lankan rice varieties are limited and studies are required to include HR rice in a cropping *** Methyl Sulfonate(EMS),a chemical mutagen is used for functional *** present study is an attempt of raising HR rice lines through conventional breeding methods.A suitable glyphosate concentration was determined by a preliminary study using five rice varieties(Bg300,Bg352,At362,Bg379-2 and H4)and varying glyphosate concentrations(0.25 g/l,0.5 g/l,1 g/l,2 g/l and 3 g/l).Resistance percentage50%was arbitrary considered as resistant *** Randomized Design with three replicates was used in the *** characters were recorded for the survived *** varieties(Bg359,At362,Bw364,Ld365,Bg366,Bg369,Bg379-2,Bg403,Bg454“Pachcha perumal,“Kalu heenatiand“Kurulu thuda)showed natural resistance to glyphosate and fourteen varieties have increased resistance after mutagenesis by EMS(S0-First generation).HR resistance percentage of S1(Second generation)plants was similar to S0 plants indicating HR was transferred to new *** statistics was supplemented with Self-Organizing Maps(SOM)to visualize variation of agro-morphological characters under *** result proved that EMS application is an effective method in breeding new rice germplasm with HR and SOM is an important tool for visualizing the multi-dimensional dataset in lower dimensions.
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