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Genotype-by-environment interaction is important for grain yield in irrigated lowland rice


Liang, S and Ren, G and Liu, J and Zhao, X and Zhou, M and McNeil, D and Ye, G, Genotype-by-environment interaction is important for grain yield in irrigated lowland rice, Field Crops Research, 180 pp. 90-99. ISSN 0378-4290 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 Elsevier B.V.

DOI: doi:10.1016/j.fcr.2015.05.014


Irrigated rice contributes the most to rice production globally and in most of rice producing countries. As with other rice production ecosystems, genotype and growing environment are the main factors influencing grain yield (GY) in irrigated rice production. However, the relative importance of genotype, environment and genotype-by-environment interaction (GEI) on GY is less studied for irrigated rice, although evaluation of candidate varieties for yield stability through multi-environment trials before release and registration is mandatory in many countries. To identify patterns of genotype, environment, and GEI for GY of irrigated lowland rice, 392 cultivars or advanced breeding lines mostly from the International Rice Research Institute (IRRI), PhilRice (Philippines) and a few breeding programs of other countries were evaluated for GY and related traits in eight environments including Jiangxi (JX) and Sichuan (SC) in China, and six season (2) and nitrogen rate (3) combinations at IRRI headquarters (Los Baņos, Philippines). Wide ranges of variations across genotypes and environments were observed for all traits. Genotype, environment, and GEI all significantly affected GY and some of the yield associated traits. GEI was more important than genotypic main effect for GY, seed setting rate and the number of panicles per plant but less important for other traits. For GY, the genotype-by-season interaction and genotype-by-season-by-nitrogen interaction was more important than the genotype-by-nitrogen interaction. The 303 genotypes with GY data in all environments were clustered into ten groups based on GY using an agglomerative hierarchical clustering procedure. The eight environments were grouped into three groups based GY using the additive main effects and multiplicative interaction (AMMI) analysis. Three nitrogen rates in the WS and SC were grouped together (E1), while three nitrogen rates in the DS formed another group (E2). JX alone was the third group (E3). Genotype groups GG9 and GG3 had the highest GY across the eight testing environments. GG9 had the highest yield in E1 and E2 while GG10 was the best in E3.

Item Details

Item Type:Refereed Article
Keywords:rice, Oryza sativa L., genotype x environment, additive main effects and multiplicative interaction (AMMI) analysis, grain yield, genotype-by-environment interaction (GEI)
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Crop and pasture improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Barley
UTAS Author:Liang, S (Miss Shanshan Liang)
UTAS Author:Zhou, M (Professor Meixue Zhou)
UTAS Author:McNeil, D (Professor David McNeil)
ID Code:101181
Year Published:2015
Web of Science® Times Cited:16
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2015-06-11
Last Modified:2017-11-06

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