Journal of Food, Agriculture and Environment

Genotype-environment interaction in some rice mutants (Oryza sativa L.)

Author(s):

M. Ali ¹, M. A. Azam ¹, M. A. Malek ^{1, 2}*, M. I. Uddin ¹, M. Y. Rafii ²*, M. R. Ismail ²

Recieved Date: 2012-10-16, Accepted Date: 2013-01-19

Abstract:

Stability performance and genotype-environment (G×E) interactions were investigated for yield and yield components of seven rice genotypes at eight cultural soil environments and were measured through linear regression and deviation from regression. It was observed that high mean values were not restricted to any of the genotypes. Three genotypes showed comparatively higher means for grain yield while other genotypes for different characters. Environmental means indicated that all genotypes performed better in rich soil and their average response was higher under NPK fertilization. Analysis of variance suggested that genotypes were significantly different from each other. Soil environments have significant effects on the genotypes and all genotypes interacted significantly with the changed environments. Stability analysis showed that all linear response (b_i) values were significant but the magnitude varied among the genotypes for all characters. Stability (Sdi) values of all genotypes were found nearer to zero for all characters. However, selections were made on the basis of these three parameters. Binadhan-4, Binadhan-6 and RC-26-91-2-2, due to having high means, average response and low stability values, were found to be suitable for all environments for different characters. Iratom-24, Binadhan-4 Binadhan-5, Binadhan-6 and RC-26-91-2-2 with high means, high response and low stability values for different characters were found to be suitable for favourable environments. While Iratom-24, Binadhan-7 and RM-250-112, due to having high mean but low response and stability values, were found suitable for unfavourable environments for three other different characters. Binadhan-7, RM-250-112 and RC-26-91-2-2 were found suitable for producing higher grain yield under unfavourable conditions. Thus, RM-250-112 and RC-26-91-2-2 can be released as varieties for unfavourable environments. 

Keywords:

Stability, response, rice mutant, environments

---

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 1
Category: Agriculture
Pages: 644-647

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :