Genetic variability and correlation in pigeonpea genotypes

Pushpavalli, S. N. C. V. L.; Yamini, K.N.; Anuradha, .; Rajani, .; Kumar, Gunjeet; Rani, C. Sandhya; Sudhakar, Chinta; Saxena, RR; Varshney, R.K.; Kumar, C V S

doi:10.5958/0975-928x.2018.00038.8

Cited by 9 publications

(10 citation statements)

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“…While, moderate PCV was observed for test weight, Low PCV values are observed for Plant height, days to 50% flowering and days to maturity. Similar results for high PCV and GCV were reported by Dahat et al (1997) for primary branches per plant, secondary branches per plant, number of pods per plant, seed yield per plant and plant height; Basavarajaiah et al, (1999) [3] for 100-seed weight; Saroj et al, (2013) [13] , JM Rao and T Rao (2015) [7] Pushpavalli et al, (2018) [10] , Satyanarayana et al, (2018) [14] , Anuradha and Patro (2019) [2] reported for seed yield per plant. The amount of heritable portion due to high degree of genetic variation can only be determined with the help of heritability estimates and genetic gain.…”

Section: Resultssupporting

confidence: 74%

Studies on genetic variability and character association in Pigeonpea (Cajanus cajan (L.) Mill sp.)

Rao¹,

Rao²

2020

Int. J. Chem. Stud.

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Fourty eight Pigeonpea(Cajanus cajan (L.) Mill sp) genotypes were evaluated for yield and yield component characters indicated the existence of considerable genetic variation in the present investigation. The components of variance revealed that the phenotypic coefficient of variation (PCV) were higher than genotypic coefficient of variation (GCV) for all the characters studied indicating the role of environmental variance in the total variance. The magnitude of PCV and GCV was moderate to high for seed yield per plant and number of pods per plant. Heritability in broad sense was higher in most of the characters viz., test weight, days to maturity, days to 50 per cent of flowering, seed yield per plant, number of pods per plant and number of branches per plant. High heritability coupled with high genetic advance as percent of mean was observed for seed yield per plant, number of pods per plant and test weight. indicating the role of additive gene in expressing these traits. Seed yield was significant positive association with number of pods per plant, number of branches per plant and test weight and these are major yield contributing traits to be given selection pressure for improving yield.

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Section: Resultssupporting

confidence: 74%

Studies on genetic variability and character association in Pigeonpea (Cajanus cajan (L.) Mill sp.)

Rao¹,

Rao²

2020

Int. J. Chem. Stud.

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“…traits as they have contributed more towards genetic diversity. Similar results were also reported byRao et al (2013),Pushpavalli et al (2018) andQutadah et al (2019).…”

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confidence: 92%

Genetic Divergence for Seed Yield Enhancing and Quality Traits in Pigeonpea [Cajanus cajan (L.) Millsp.]

Kaur

Singh

Sethi

et al. 2022

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Background: Pigeonpea has remarkable contribution in flourishing the Indian agricultural economy but over the decades, its productivity has remained stagnant. Presence of genetic diversity in breeding population is the key to develop high yielding varieties. Therefore the current study was aimed to explore genetic divergence among pigeonpea genotypes. Methods: A set of 178 pigeonpea germplasm lines were evaluated in randomized block design to assess the genetic divergence and clustering pattern of pigeonpea genotypes. Observations on various yield component traits were recorded. For the estimation of the Fe and Zn content ICP-OES (Perkin Elmer USA) was used. Mahalanobis D2 analysis was carried out to assess the genetic divergence. Result: Wide range of genetic diversity was revealed among lines for eleven traits studied. Mahalanobis D2 analysis grouped all the genotypes into eleven non-overlapping clusters. The inter cluster D2 values indicated that cluster IV and XI (21046.45) were the most diverse and cluster V and cluster VII (60.67) were the less diverse. Out of the eleven characters studied days to maturity, plant height and yield per plot contributed 93.32 per cent of the total divergence. Based on mean performances, cluster XI and cluster II were found to be beneficial for early flowering and early maturity genotypes, cluster V and cluster VII for number of pods per plant and yield per plot, respectively. The highest mean value for grain iron and zinc content was recorded in cluster III rendering simultaneous improvement for these traits. Therefore, trait-wise selection of diverse parents from different clusters would be desirable and beneficial.

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“…The maximum cluster means value for yield/plant was in cluster II (59.4) followed by cluster III (39.6). Earlier workers have also reported substantial genetic divergence in pigeonpea germplasm (Rupika and Kannan Bapu, 2014;Satapathy and Panigrahi, 2014;SNCVL et al, 2018;Zavinon et al, 2019;Ranjani et al, 2021) 09-46, AH 10-13, AH 10-27, AH 10-29, AH 10-30, AL 311-6, AL 344-1, AL 360-5, AL 442, AL 1095-2-2, AL 1313, AL 1313-2-2, AL 1323-1-2, AL 1336-7-7, AL 1354-2-2, AL 1356-04, AL 1359-03, AL 1362-1, AL 1366-1, AL 1389, AL 1416, AL 1417, AL 1419, AL 1421, AL 1434, AL 1439, AL 1455, AL 1484, AL 1502, AL 1508, AL 1581, AL 1589, AL 1604, AL 1614, AL 1922 The above results concluded that maximum genetic divergence was observed between cluster II and VI followed by cluster I and II and cluster IV and II. On the basis of cluster mean values, cluster II was superior for pods/plant and yield/plant, and cluster VI contains early and short plant height genotypes.…”

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confidence: 92%

Morphological characterization and assessment of genetic diversity in pigeonpea [Cajanus cajan (L.) Millsp.] germplasm

2021

EJPB

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A total of 243 genotypes of pigeonpea were evaluated during Kharif, 2019 on the basis of DUS and D 2 -cluster analysis. Pigeonpea genotypes were grown in the augmented design for evaluation. Morphological characterization was done based on plant descriptors for pigeonpea at different stages of plant growth. The cluster analysis grouped all the genotypes into six clusters. The clusters I, II, III, IV, V and VI had 32,3,9,79,115 and 5 genotypes, respectively. The inter cluster distance was maximum between cluster II and VI (240.47) followed by cluster I and II (231.37). On the basis of cluster mean values cluster II was superior for the character pods/plant (340.90) as well as in yield/plant (59.4). The genotypes included in cluster VI were early with short plant height. The study revealed that the diverse genotypes viz; AH 06-09, AH 14-01, AH 16-36, PADT-16 and HDM 04-01 could be used in hybridization programme to develop high yielding, early genotypes with short plant height.

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Genetic variability and correlation in pigeonpea genotypes

Cited by 9 publications

References 0 publications

Studies on genetic variability and character association in Pigeonpea (Cajanus cajan (L.) Mill sp.)

Studies on genetic variability and character association in Pigeonpea (Cajanus cajan (L.) Mill sp.)

Genetic Divergence for Seed Yield Enhancing and Quality Traits in Pigeonpea [Cajanus cajan (L.) Millsp.]

Morphological characterization and assessment of genetic diversity in pigeonpea [Cajanus cajan (L.) Millsp.] germplasm

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