scholarly journals Genetic Variability, Heritability and Genetic Advance in Cluster Bean [Cyamopsis tetragonoloba (L.) Taub.] Genotypes

2021 ◽  
Author(s):  
A. Remzeena ◽  
P. Anitha
Keyword(s):  
Genetic Variability ◽  
Crop Improvement ◽  
Direct Selection ◽  
Cyamopsis Tetragonoloba ◽  
Genetic Advance ◽  
Gene Effects ◽  
Cluster Bean ◽  
Pod Yield ◽  
Industrial Crop ◽  
Number Of Branches

Background: Cluster bean commonly known as guar is an important leguminous crop. It is widely exploited as an industrial crop because of its seeds which contain galactomannan rich endosperm. Nutrient rich green pods are used as vegetable for human consumption and plants as fodder for livestock. It is a drought tolerant hardy vegetable, which fixes atmospheric nitrogen. Even though it has great potential as a vegetable and industrial crop, it is not very popular in Kerala. So, there is a need for improvement and development of varieties suitable for climatic condition prevailing in Kerala. Hence, evaluation of germplasm has to be conducted as a preliminary step in-order to study extend of variability available in the germplasm and to identify suitable high yielding genotypes that can be utilized in the crop improvement programme. The present study was conducted to estimate genetic variability, heritability and genetic advance for yield and yield contributing characters among the collected cluster bean genotypes. Methods: Thirty accessions of cluster bean were evaluated during 2018. The experiment was laid out in randomized block design with two replications. Statistical analysis was employed for estimation of various genetic parameters such as GCV, PCV, heritability and GAM. Result: The genotypes exhibited wide variability for all the characters studied. High estimates of GCV and PCV were observed for number of branches, number of pod clusters/plant, number of pods/plant, number of pods/cluster, pod weight and pod yield/plant. High heritability coupled with high genetic advance as per cent of mean was observed for plant height, number of branches, number of pod clusters/plant, number of pods/plant, number of pods/cluster, pod weight and pod yield/plant which suggested the presence of addictive gene effects. Hence, pod yield in cluster bean could be improved through direct selection.

scholarly journals Correlation and Path Coefficient Analysis in Cluster Bean [Cyamopsis tetragonoloba (L.) Taub.] Genotypes

2021 ◽  
Author(s):  
A. Remzeena ◽  
P. Anitha
Keyword(s):  
Plant Height ◽  
Agricultural Sector ◽  
Block Design ◽  
Mitigation Strategies ◽  
Path Coefficient ◽  
Cyamopsis Tetragonoloba ◽  
Cluster Bean ◽  
Pod Yield ◽  
Positive Direct ◽  
Number Of Branches

Background: Climate change is a major challenge faced by the agricultural sector all over the world. Different adaptation and mitigation strategies are used to cope with these weather aberrations. Growing climate resilient crops and cultivars suitable for different regions is one of the adaptation strategy. Leguminous crops are well known for their resilience, adaptation and tolerance to adverse conditions, among these crops cluster bean is a hardy and drought tolerant crop extremely suitable for warm tropical regions. Hence identification and improvement of selected genotypes of cluster bean have paramount importance for combating the challenges possessed by the changing climatic scenario. Methods: Thirty accessions of cluster bean were evaluated during 2018. The experiment was laid out in randomized block design with two replications. Statistical analysis was employed for estimation of correlation and path coefficients. Result: The correlation analysis revealed that pod yield/plant had positive significant correlation with number of branches, number of pod clusters/plant, number of pods/plant and days to first harvest hence, selection of accessions having higher mean values for these traits could improve yield in cluster bean. Path analysis revealed that number of pods/plant had maximum positive direct effect on pod yield/plant followed by number of branches and plant height. Thus, while attempting selection for higher pod yield in cluster bean, number of pods per plant, number of branches and plant height have to be taken into account.

Genetic Variability, Character Association and Path Analysis for Pod Yield and its Component Characters in Groundnut [Arachis hypogaea (L.)]

2021 ◽  
Author(s):  
Giradhari Lal Yadav ◽  
S.S. Rajput ◽  
D.K. Gothwal ◽  
M.L. Jakhar
Keyword(s):  
Genetic Variability ◽  
Block Design ◽  
Crop Improvement ◽  
Kernel Weight ◽  
Direct Selection ◽  
Oilseed Crop ◽  
Pod Yield ◽  
Biological Yield ◽  
Positive Direct ◽  
Kernel Yield

Background: Groundnut is an important oilseed crop in the India. The groundnut kernels serve as a rich source of edible oil (48-50%) and quality protein (25-28%). In crop improvement programme, availability of sufficient genetic variability is of immense importance. The knowledge of nature and magnitude of genetic variance controlling yield and yield components is a prerequisite for improvement of yield in any crop. Methods: The present investigation was undertaken to assess the genetic variability and character associations for pod yield and component characters in 45 genotypes of groundnut. The genotypes were raised in randomized complete block design with three replications during kharif 2019 at SKNAU, Jobner (Rajasthan). Result: The analysis of variance revealed significant differences among the genotypes for all the characters studied indicating presence of wide genetic variation for different characters. In the present investigation, high genetic advance coupled with high heritability and GCV was observed for biological yield per plant, 100-kernel weight, kernel yield per plant, dry pod yield per plant and pods per plant which indicated prevalence of additive gene action in their expression and these traits possessed high selective value. Kernel yield per plant, pods per plant and biological yield per plant exhibited significantly positive correlation with dry pod yield per plant both at genotypic and phenotypic levels, while shelling percentage at genotypic level only. Three characters viz., kernel yield per plant, pods per plant and biological yield per plant could be considered as direct selection parameters for yield improvement in groundnut because they exerted positive direct effect on dry pod yield per plant.

Genetic variability studies in cluster bean [Cyamopsis tetragonaloba(L.) Taub.] for growth, yield and quality parameters

2017 ◽  
Author(s):  
G.R. Santhosha ◽  
Evoor Shashikanth ◽  
V.D. Gasti ◽  
G. Prabhuling ◽  
V. D. Rathod ◽  
...  
Keyword(s):  
Growth Yield ◽  
Direct Selection ◽  
Cluster Number ◽  
Number Of Clusters ◽  
Plant Weight ◽  
Plant Seed ◽  
Cluster Bean ◽  
Pod Yield ◽  
Gum Content ◽  
Number Of Branches

The results on genetic parameters in 43 cluster bean genotypes collected from different parts of the country revealed, high estimates of variation for number of branches at 45 and 90 days after sowing (DAS), number of pods per cluster, number of clusters per plant, number of pods per plant, vegetable pod yield per plant, weight of ten pods, seed endosperm gum content, plant spread (E-W), plant spread (N-S), and vegetable pod yield per plot. The high estimates of heritability coupled with high values of genetic advance over mean (GAM) were observed for the characters number of branches at 45 DAS, plant height at 90 DAS, number of branches at 90 DAS, stem girth, plant spread (E-W), plant spread (N-S), number of pods per cluster, number of clusters per plant, number of pods per plant, pod length, vegetable pod yield per plant, vegetable pod yield per plot, weight per ten pods, hundred seed weight, seed yield per plant, seed endosperm gum content, protein content in seeds indicates predominance of additive component for these traits and hence direct selection would be more effective in improving these traits.

Genetic Relationship and Assessment of Variability of Mungbean [Vigna radiata (L.) Wilzek] Genotypes Based on Morphological Traits

2021 ◽  
Author(s):  
Vinod Kumar
Keyword(s):  
Genetic Variability ◽  
Morphological Traits ◽  
Agricultural Research ◽  
Environmental Influence ◽  
Crop Improvement ◽  
Flowering Plant ◽  
Direct Selection ◽  
Research Station ◽  
Gene Effects ◽  
New Genotype

Background: The present investigation was undertaken to examine the genetic variability and relationship between traits among the 73 germplasm lines of mungbean collection of diverse nature. Genetic variability and association studies play an important role in developing a new genotype. The mungbean productivity remains low in India because of low genetic base for yield improvement, absence of variability for yield traits, poor ideotype of mungbean plant, inadequate management of the crop, weed infestation and susceptibility to biotic and abiotic stresses. Genetic variability is most important factor of success of any crop improvement programme.Methods: An experiment was conducted in a completely randomized block design with two replication at Regional Agricultural Research Station, Sagar, Madhya Pradesh in high productive black cotton soils during kharif 2016 on 73 mungbean genotypes. Result: The study revealed that the mean sums of squares due to genotype were highly significant for all the morphological traits. High estimates of heritability and genetic advance were recorded for clusters per plant, no. of branches per plant, days to maturity, seed yield, days to 50% flowering; plant height and no. of pods per plant indicating the role of additive gene effects with low environmental influence for the determination of these traits and simple phenotypic selection may be effective. The results also indicated improvement through direct selection for these traits can increase directly the grain yield in mungbean. Genotype Pusa Baisakhi, HUM-16, IPM-02-03, IPM-02-19, PM-5, AKM-9904, COGG-912 and RMG-991 were found good donors for these traits in recombinant breeding programme for yield enhancement in mungbean.

Extent of Genetic Variability for Quantitative Traits in Indian Clusterbean Germplasm [Cyamopsis tetragonoloba (L.) Taub]

2021 ◽  
Author(s):  
Hina M. Makwana ◽  
P.R. Patel ◽  
D.G. Patel
Keyword(s):  
Genetic Variability ◽  
Seed Yield ◽  
Environmental Influence ◽  
Block Design ◽  
Cyamopsis Tetragonoloba ◽  
Genetic Advance ◽  
Plant Seed ◽  
Days To Flowering ◽  
Effective Selection ◽  
Number Of Branches

Background: Clusterbean [Cyamopsis tetragonoloba (L.) Taub.] (2n=2x=14) is an under exploited legume belonging to the family Fabaceae. Clusterbean is a versatile legume crop cultivated mostly as vegetable, for the extraction of guar gum, animal feed cover crop. Clusterbean is a drought tolerant, hardy, deep rooted annual legume. To assess the nature and magnitude for genetic variability, heritability and genetic advance for seed yield and component characters that are useful for an effective selection programme, the present study was under taken. Methods: A set of 40 clusterbean genotypes were evaluated during Kharif 2019 in in randomized complete block design with four replications at Agronomy Instructional Farm, SardarkrushinagarDantiwada Agricultural University, Sardarkrushinagar, Gujarat, India.Result: The highest estimates of genotypic coefficient of variation was observed for the number of branches per plant followed by seed yield per plant, days to flowering and number of clusters per plant indicating the presence of wide genetic variability for these characters. High estimates of heritability coupled with high genetic advance were observed for number of branches per plant, seed yield per plant and days to flowering indicating the presence of additive genes and less environmental influence on the characters and existence of sufficient heritable variation and wider scope for effective selection.

Genetic variability and divergence studies in cluster bean(Cyamopsis tetragonoloba L.) under hill zone of Karnataka, India

2016 ◽  
Author(s):  
Revati . Goudar ◽  
V. . Srinivasa ◽  
D. . Lakshmana
Keyword(s):  
Cyamopsis Tetragonoloba ◽  
Broad Sense Heritability ◽  
Genetic Advance ◽  
Number Of Clusters ◽  
Cluster Bean ◽  
Pod Yield ◽  
Wide Range ◽  
Maximum Range ◽  
Cluster Distance ◽  
High Heritability

Eighteen genotypes of cluster bean [Cyamopsis tetragonoloba (L.) Taub] were evaluated to estimate variability, broad sense heritability, genetic advance over mean and diversity for vegetable pod yield and related attributes, during summer 2014-15. Maximum range of variability was observed for number of vegetable pods per plant, number of clusters per plant and pod yield. High heritability coupled with high genetic gain in percentage was observed for number of pods per plant, number of clusters per plant, pod yield and days to first flowering. The maximum intra cluster distance was observed in cluster I and intercluster distance was high between cluster I and cluster III, this indicated wide range of variability among clusters. The per cent contribution towards genetic diversity was high for dry pod yield per plant (29.41%) followed by number of dry pods per plant (24.18%) and seed yield per plant (16.99 %).

Genetic divergence analysis in cluster bean [Cyamopsis tetragonoloba (L.) Taub.]

2019 ◽  
Author(s):  
A. Remzeena ◽  
P. Anitha ◽  
Sameer Muhamed
Keyword(s):  
Genetic Divergence ◽  
Fruit Set ◽  
Crop Improvement ◽  
Cyamopsis Tetragonoloba ◽  
Cluster Bean ◽  
Pod Yield ◽  
Cluster Distance ◽  
Wide Variability ◽  
Improvement Programme ◽  
Pod Length

Thirty cluster bean genotypes collected from NBPGR Regional Station, Jodhpur was assessed to estimate the genetic divergence using Mahalanobis D2 analysis. The genotypes exhibited wide variability for all the characters studied. Thirty genotypes were grouped into V clusters. Cluster I consisted the maximum number of genotypes (12) followed by cluster II with 10 and cluster IV with 6 genotypes. Cluster III and V had only one genotype each. Intra cluster distance was maximum in cluster I with 12 genotypes indicating the high intra cluster diversity and inter cluster distance was highest between cluster V and cluster III (D2=174782.9) followed by cluster II and V (D2=115239.7), cluster III and IV (D2=78577.82), cluster I and V (D2 = 69202.2), cluster II and IV (D2 =41433.2). Mean number of branches, number of pod clusters/plant, number of pods/plant and pod yield/plant was highest for cluster V. Pod length, pod girth and pod weight were maximum in cluster III. Cluster IV and I was earliest to attain 50% flowering, days to first fruit set. Cluster III and II took minimum days for first harvest. Traits that contributed to divergence were pod yield/plant, days to 50% flowering and days to first fruit set. Hence while designing a crop improvement programme, parents for hybridization may be selected based on the inter cluster distance, mean performance of different traits and contribution of traits to divergence.

Effect of Organic Nutrient Management on Growth and Yield of Cluster Bean (Cyamopsis tetragonoloba L.)

2021 ◽  
Author(s):  
J.H. Brahmbhatt ◽  
S.K. Acharya ◽  
G.S. Patel ◽  
Chirag Thakar ◽  
N.R. Solanki
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Organic Production ◽  
Growth And Yield ◽  
Cyamopsis Tetragonoloba ◽  
Cluster Number ◽  
Organic System ◽  
Cluster Bean ◽  
Pod Yield ◽  
Organic Nutrient

Background: Organic production of cluster bean is to contribute to the enhancement of production sustainability along with ecology. Sustainability in organic farming must therefore be seen in a holistic sense, which includes ecological, economic and social aspects. A synergistic effectof bio fertilizer with crop increases the crop productivity and sustainability also. Bio fertilizers are low cost, effective and renewable sources of plant nutrients to supplement chemical fertilizers. Therfore to overcome the ill effect of chemical based farming, organic system is becoming the emerging need of the society.Methods: A field experiment ’’was carried out in Pusa Navbahar variety of clusterbean during summer season (February to May) of 2019 at College farm, College of Horticulture, Sardarkrushinagar Dantiwada Agricultural University, Jagudan, Dist. Mehsana, Gujarat, India. Sixteen treatments having various combinations of organic sources of nutrients (FYM, vermicompost, and neem cake), bio fertilizers (Rhizobium + PSB + KSM) along with RDF (20/40/0 kg/ha) as a control. They were replicated thrice in a randomized block design having a plot size of 3.0 m × 2.0 m with a spacing of 60 cm × 20 cm. Standard practices were followed during the entire course of the investigation.Result: It showed highly significant differences among different treatments for majority of the growth and yield attributing traits, but treatment T6 (75% N through FYM + Rhizobium + PSB + KSM) was rated as the best treatment for characters like days taken for germination, number of root nodules per plant, plant height at 60 DAS (cm), number of pod per cluster, number of cluster per plant, green pod yield per plant (g), green pod yield per plot (kg) and green pod yield per hectare (kg) as compared to other treatment. It can be concluded that the organic nutrient management in cluster bean with the application of 75% N through FYM + Rhizobium + PSB + KSM is beneficial for obtaining a higher yield.

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