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Grouping of red bean genotypes based on the relationship between some quantitative and qualitative traits-using multivariate statistical methods
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Abstract: (3888 Views) |
| To study the relationship between some quantitative and qualitative traits in red bean, 15 red bean genotypes were studied in experimental field of Faculty of agriculture, the University of Tehran in 2004 cropping season using a randomized complete block design with three replications. Necessary scores and measurements were made and multivariate statistical analyses were performed for different quantitative and qualitative traits. Analysis of variance of data revealed high genetic variation for concerned traits among red bean genotypes. Seven quantitative traits were used in stepwise regression model which included quantitative attributes of seed and plant morphological traits. Among these attributes pod weight in plant and length of internode with highest correlation coefficients had direct effects of 1.605 and -1.302, respectively. In factor analysis, 89% of total variation was explained by eight factors which were divided in two sets: The primary factors included seed yield related quantitative morphological and physiological traits and the secondary factors comprised cooking quality related traits and plant type. Cluster analysis grouped the 15 red bean genotypes in three distinctive groups. KS31169 genotype had the least similarities with the other genotypes therefore, it would be expected that crosses made between this genotype and genotypes of the first group will develop desirable variation in segregating populations for breeders. |
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| Keywords: Red bean, Quantitative traits, Qualitative traits, Seed yield, Multivariate method, Cluster analysis. |
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Full-Text [PDF 2309 kb]
(1280 Downloads)
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Type of Study: Scientific & Research |
Subject:
Special
Received: 2015/02/23 | Accepted: 2015/02/23 | Published: 2015/02/23
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