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G X E Interaction for Growth, Yield, and Quality Characters of Strawberry (fragaria Ananassa Duch.) Under Bangladesh Conditions

M. Moshiur Rahman
SSO
Pomology Division, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

M. Ariful Islam
PhD Student
Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh

M. Abdul Khaleque Mian
Professor
Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh

M. Mizanur Rahman
Professor
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU),Gazipur, Bangladesh

Abstract/ Executive Summary:

A multi location trial with five promising strawberry genotypes viz., Sweet Charlie, Festival, Camarosa, FA 008 and BARI Strawberry-1 was conducted under different sub tropical climatic conditions of Bangladesh to study their G ´ E interaction. Location were Gazipur, Rajshahi and Chittagong during the period from August 2009 to May 2011. Combined analysis of variance indicated significant variation among the genotypes as well as location for almost all the characters studied. Genotype ´ environment studies indicated different response of genotypes over locations for most of the characters suggesting location wise environmental variation. Stability parameter revealed that a particular genotype did not perform consistently for all the characters. The genotype Festival considered as stable for most of the characters except days to flowering and ascorbic acid content of fruits, and considered as stable over different locations. For this reason, the genotype ‘Festival’ could be well thought-out and less receptive to the environmental conditions and might be recommended for all environments. On the other hand, environmental indices indicated that the environment of Rajshahi was found to be most favourable for strawberry cultivation followed by that of Gazipur and Chittagong.

Keywords: G x E interaction, Strawberry, Environmental indices, Adaptability, Phenotypic index

Location: Gazipur, Rajshahi and Chittagong

Start Date: 01-08-2009

End Date: 31-05-2011

Program Area: Variety and Species

Commodity: Strawberry

Objectives:

To study the genotypes x environment interaction as well as stability performance of selected strawberry genotypes in Bangladesh

To select widely adapted as well as location specific strawberry varieties for commercial cultivation

Methodology:

Five promising strawberry genotypes- Sweet Charlie, Festival, Camarosa, FA 008 and BARI Strawberry-1 were cultivated in three different locations of Bangladesh viz. Fruit Research Field of Pomology Division, Horticulture Research Centre, BARI, Gazipur; Fruit Research Station, Binodpur; Rajshahi and Agricultural Research Station, Pahartali, Chittagong during the period from August 2011 to May 2012. The experiment was laid out in a randomized complete block design (RCBD) with four replications. The unit plot size was 100 x 280 cm and the plants were spaced at 50 x 40 cm on beds. Beds were raised 30 cm above the main field with 50 cm drain in-between 2 beds. Each plot contained double row accommodating 14 plants. Daughter plants of strawberry were planted on September 17, 2011. The data were recorded on fruits per plant, days to flowering, harvest duration, plant mortality, yield and ascorbic acid. The data were subjected to combined analysis and then stability parameters viz. phenotypic index (P_i), regression co-efficient (bi) and deviation from regression (S₂ d_i) and environmental index (I_j) were estimated following Eberhart and Russell’s model (1966).

Source of Information: Pak. j. sci. ind. res. Ser. B: biol. sci. 58 (1): 11-18; 2015

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 25000/-

Total Budget (Tk.) : 25000/-

Achievement/Findings:

For improvement in strawberry cultivation/yield in Bangladesh, growth of five genotypes was studied under different subtropical climatic conditions and found satisfactory. Observing the stability parameter, it was found that level of stability for a particular genotype was not consistent for all the characters. But the genotype Festival considered as stable for most of the characters except days to flowering and ascorbic acid content of fruits over locations. For these reasons, the genotype Festival could be considered more adaptive to environmental conditions and might be recommended for all environments.

Knowledge Management: Journal