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here - First Legume Society Conference (LSC1)

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Book of Abstracts <strong>First</strong> <strong>Legume</strong> <strong>Society</strong> <strong>Conference</strong> 2013: A <strong>Legume</strong> Odyssey Novi Sad, Serbia, 9-11 May 2013<br />

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Grain yield stability of guar [Cyamopsis tetragonoloba (L.) Taub.] genotypes under<br />

various environments<br />

Lal Hussain Akhtar 1 , Rashid Minhas 1 , Muhammad Kashif 2 , Muhammad Shahjahan Bukhari 1 , Syed<br />

Awais Sajid Shah 1<br />

1 Agricultural Research Station, Bahawalpur, Punjab, Pakistan<br />

2 University of Agriculture, Faisalabad, Punjab, Pakistan<br />

Guar genotypes vary in their response to different environmental conditions. Six genotypes<br />

namely S-2536, S-3112, S-4055, S-4540, S-5274 and BR-99 were tested at seven locations<br />

throughout Pakistan during cropping season of Kharif 2012 to study their grain yield stability.<br />

Analysis of variance and stability were computed. Variance due to genotypes, environments and<br />

G*E interaction were found to be significant. Linear and non-linear components of G*E<br />

interaction were also present. Three stability parameters were computed to judge the stable and<br />

superior genotypes of guar. On the basis of these parameters, the top yielding genotype S-5274<br />

did not exhibit general adaptability and was considered as unstable due to high deviation from<br />

regression. The genotype BR-99 showed the stable performance over all locations followed by<br />

genotype S-3112.<br />

72

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