Exploration of Genetic Diversity for Qualitative Traits among the Extant Upland Cotton (Gossypium hirsutum L.) Varieties and Parental Lines

Rathinavel, K.

doi:10.20546/ijcmas.2017.608.285

Cited by 12 publications

(10 citation statements)

References 13 publications

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“…Among all traits, TRL and RAD showed relatively high level of H' under LP condition and PRL showed relatively highest value of H' under both phosphorus regimes. High value of H' indicates greater genetic diversity and balanced frequency distribution [71], while low H' indicates extreme unbalanced frequency distribution with lack of diversity [72]. This result provides valuable information to improve both agronomic traits as well as nutrient use efficiency traits in mungbean breeding programme.…”

Section: Discussionmentioning

confidence: 85%

Genetic variation for root architectural traits in response to phosphorus deficiency in mungbean at the seedling stage

Reddy

Aski

Mishra

et al. 2019

Preprint

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Roots enable the plant to survive in natural environment by providing anchorage and acquisition of water and nutrients. In this study, 153 mungbean genotypes were studied to compare root architectural traits under normal and low phosphorus conditions. Significant variations, medium to high heritability, near normal distribution and significant correlations were observed for studied root traits. Total root length (TRL) was positively correlated with total surface area (TSA), total root volume (TRV), total root tips (TRT) and root forks. The first two principal components explained the 79.19 % and 78.84% of the total variation under normal and low phosphorus conditions. TRL, TSA and TRV were major contributors of variation and can be utilized for screening of phosphorus uptake efficiency at seedling stage. Released Indian mungbean varieties were found to be superior for root traits than other genotypic groups. Based on comprehensive phosphorus efficiency measurement, IPM-288, TM 96-25, TM 96-2, M 1477, PUSA 1342 were found to be best five highly efficient genotypes whereas M 1131, PS-16, Pusa Vishal, M 831, IC 325828 were highly inefficient genotypes. These identified highly efficient lines are valuable genetic resources for phosphorus uptake efficiency that could be used in mungbean breeding programme.

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Section: Discussionmentioning

confidence: 85%

Genetic variation for root architectural traits in response to phosphorus deficiency in mungbean at the seedling stage

Reddy

Aski

Mishra

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Independently of root length, greater diversity in diameter is due to the changes in the fine root distribution for each root diameter in response to the nutritional environment [75]. The high value of H' indicates greater phenotypic diversity and balanced frequency distribution [76], while low H' indicates an extremely unbalanced frequency distribution with a lack of diversity [77]. The Shannon-Weaver diversity index has been used previously to describe root traits diversity in rice [78], maize [79], wheat [80] and cowpea [81].…”

Section: Discussionmentioning

confidence: 99%

Genetic variation for root architectural traits in response to phosphorus deficiency in mungbean at the seedling stage

et al. 2020

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Roots enable the plant to survive in the natural environment by providing anchorage and acquisition of water and nutrients. In this study, root architectural traits of 153 mungbean genotypes were compared under optimum and low phosphorus (P) conditions. Significant variations and medium to high heritability were observed for the root traits. Total root length was positively and significantly correlated with total root surface area, total root volume, total root tips and root forks under both optimum P

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“…In many studies, scientists have established a narrow genetic base regarding upland cotton (May et al, 1995;Mc Carty et al, 2005;Satish et al, 2009). Different cotton breeders and cotton growers (Li et al, 2005;Rathinavel, 2017, Gopinath et al, 2009 have attributed yield reduction and deterioration in fiber quality of cotton to less diverse genotype availability.…”

Section: Introductionmentioning

confidence: 99%

“…For assessment of genetic diversity in cotton varieties phenotypic traits especially morphological or agronomic traits is considered as the most powerful tool by a plant breeder. Following this procedure can provide a baseline in the development of superior genotypes to be used as parents and possible hybrid combinations (Alishah, 2001;Ashok kumar et al, 2011;Rathinavel, 2017).…”

Section: Introductionmentioning

confidence: 99%

Genetic divergence on the basis of principal component, correlation and cluster analysis of yield and quality traits in cotton cultivars

Jarwar¹,

Wang²,

Iqbal³

et al. 2019

PAK.J.BOT.

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The present research work was conducted to obtain genetic divergence regarding fiber and yield associated traits among 12 different Chinese cotton varieties (cultivars) of upland cotton. The phonological studies were accomplished via carrying out correlation, and cluster analyses. The outcomes from current study demonstrated strong positive correlation (0.69) between number of bolls per plant and cottonseed yield as well as positive significant correlation between lint index (0.94) and staple length (0.70); however, fiber strength exhibited significant negative correlation (0.65) with cottonseed yield per plant. Heat map of experimented genotypes depicted seven clusters are I, II, III, IV, V, VI and VII keeping cluster-III at extreme for highest individual genotypic scores concerning different fiber and yield associated traits. Principal component analysis revealed total variability of 74.38% among genotypes contributed by PC-1 (52.86%) and PC-2 (21.52%).Yield related traits i.e., number of bolls per plant, cotton seed yield and staple length contributed positive significant component loadings for the first two PCs. Cluster analysis (k) grouped studied cultivars into three discrete clusters. Cluster-2 and cluster-3 got optimum values for cottonseed yield, number of bolls per plant, seed index and staple length. The information was fetched together after applying different statistical tools in order to make the outcomes of genetic diversity fruitful for developing an improved cotton breeding program.

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Exploration of Genetic Diversity for Qualitative Traits among the Extant Upland Cotton (Gossypium hirsutum L.) Varieties and Parental Lines

Cited by 12 publications

References 13 publications

Genetic variation for root architectural traits in response to phosphorus deficiency in mungbean at the seedling stage

Genetic variation for root architectural traits in response to phosphorus deficiency in mungbean at the seedling stage

Genetic variation for root architectural traits in response to phosphorus deficiency in mungbean at the seedling stage

Genetic divergence on the basis of principal component, correlation and cluster analysis of yield and quality traits in cotton cultivars

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