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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Nov 2011, 32 (6)                                     Back


nstantaneous and historical temperature effects on a-pinene

Plant stature of aromatic rice genotypes in the

environment of Bangladesh

Author Details

 

S.M. Shahidullah

(Corresponding author)

Bangladesh Rice Research Institute (BRRI), Gazipur 1701, Bangladesh

e-mail: shahidullah4567@gmail.com

M.M. Hanafi??

Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

M. Ashrafuzzaman

Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

M.A. Hakim

Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

M.R. Karim

Bangldesh Agricultural Development Corporation (BADC), Dhaka, Bangladesh

 

Publication Data

Paper received:

13 May 2010

 

Revised received:

09 November 2010

 

Accepted:

20 December 2010

 

Abstract

Plant stature of a rice crop is an important selection criterion. As plant height is a quantitative trait it is influenced by environmental conditions. A field experiment was conducted with 40 rice genotypes to assess the fluctuation and stability of plant height in a series of 16 environmental situations. The effects of genotype (G), environment (E) and all the components of G?E interaction were highly significant. Among the genotypes, Jamai sohagi was extremely sensitive (bi = 1.37) to environmental changes, and indicating lowest adaptability over the environments. Plant height of seven genotypes viz. Basmati PNR346, Benaful, BRRIdhan28, BRRIdhan38, BRRIdhan39, Gandho kasturi and Neimat, having the bi values between 0.59 and 0.72, showed high stability against environmental changes. The other seven genotypes viz. Badshabhog, Basmati Tapl-90, Kamini soru, Khazar, Laljira, Sarwati and Ukni madhu expressed only nonlinear sensitivity (S2di = 90 ? 181)) and thus unpredictable fluctuation. Twenty one genotypes indicated their average stability (bi = 0.91 -1.15) over the environments.

 

Key words

Plant height, Aromatic rice, G?E interaction, AMMI analysis

 

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