scholarly journals Induced variability for yield and its attributing traits in cluster bean [Cyamopsis tetragonoloba (L. ) Taub] through gamma irradiation

2021 ◽  
Vol 16 (1) ◽  
pp. 64-68
Author(s):  
H N Lavanya ◽  
S Mishra ◽  
M Sood ◽  
T S Aghora ◽  
M Anjanappa ◽  
...  
Keyword(s):  
Plant Height ◽  
Gamma Ray ◽  
Block Design ◽  
Cyamopsis Tetragonoloba ◽  
Genetic Advance ◽  
Cluster Number ◽  
Cluster Bean ◽  
High Heritability ◽  
Effective Mutagen ◽  
Pod Length

Gamma ray is an effective mutagen which creates useful variability for crop like cluster bean where the natural variation is very meagre and creation of variability by conventional methods is cumbersome. In the present study, cluster bean cv. Pusa Navbahar was treated with different level of gamma rays from 50 Gy to 600 Gy with 50Gy interval and obtained M2 population was subjected to variability estimation for yield and its attributing traits in augmented block design. The variance between the control and the mutants was found to be significant for plant height, number of pods per cluster, number of pods per plant, pod length, pod width, pulp to seed ratio. For these traits, PCV ranged from 14.28 per cent (pod width) to 31.99 per cent (pulp to seed ratio) whereas, GCV ranged from 10.10 per cent (pod width) to 24.16 per cent (pulp to seed ratio). The heritability in broad sense ranged from 50 per cent (pod width) to 79.99 per cent (Plant height). Genetic advance expressed as percentage over mean ranged from 2.06 per cent (pod width) to 222.44 per cent (plant height). The traits like plant height, pod length, pod width, pulp to seed ratio showed sufficient variability due to induced mutation. All these traits showed medium to high heritability and high genetic advance hence selection for these traits will be effective.

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.

​Genetic Variability Studies in Short Statured Early Maturing M3 Generation Cluster Bean [Cyamopsis tetragonoloba (L.) Taub.] Mutants

2021 ◽  
Author(s):  
P. Balasubramanian ◽  
C. Vanniarajan ◽  
V. Swaminathan ◽  
J. Souframanien ◽  
Devi Suresh ◽  
...  
Keyword(s):  
Combination Treatment ◽  
Gamma Ray ◽  
Phenotypic Variance ◽  
Cyamopsis Tetragonoloba ◽  
Number Of Clusters ◽  
Cluster Bean ◽  
Pod Yield ◽  
Early Maturing ◽  
The Stability ◽  
Pod Length

Background: The present germplasm of cluster bean lack the needed natural variability for developing early maturing short statured lines. Therefore, an attempt was made to study the magnitude of heritable variability stimulated through induced mutation in M3 generation. Methods: M3 generation seeds of cluster bean variety MDU1 treated with gamma rays, electron beam and combination of gamma ray with EMS were used in the present investigation. The biometric observations were recorded on ten selected M3 plants from each family of every treatments for six traits viz., plant height, days to first flowering, number of clusters per plant, number of pods per plant, pod length and pod yield per plant. The same method was followed for recording observations on untreated parental materials also. Result: Studies on the variability parameters indicated that the phenotypic variance, genotypic variance, heritability and genetic advance were higher in combination treatment for all the traits. The shortest mutant and the earliest flowering (3M11) was observed in combination of 100 Gy of gamma ray+20 mM EMS. Mutant for the highest number of clusters (3M3) was observed in combination treatment of 300 Gy gamma ray with 20 mM EMS. The mutants for the highest number of pods per plant (3M1 and 3M2) and the highest pod yield (3M1) were identified at 400 Gy of gamma ray treatment. Fifteen desirable mutants were selected and forwarded to next generation for testing the stability in different environments.

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 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 %).

Correlation and path coefficient analysis of yield and its component characters among different accessions of cluster bean [Cyamopsis tetragonoloba (L.) Taub.].

2017 ◽  
Author(s):  
Divya K. Lekshmanan ◽  
M. Abdul Vahab
Keyword(s):  
Plant Height ◽  
Direct Effect ◽  
Path Coefficient ◽  
Cyamopsis Tetragonoloba ◽  
Path Coefficient Analysis ◽  
Significant Positive Association ◽  
Cluster Bean ◽  
Pod Yield ◽  
Pod Length ◽  
Plant Plant

An experiment was carried out to study the correlation between yield components and their direct and indirect effects on the vegetable pod yield in cluster bean using 100 accessions. The correlation study revealed significant positive association of vegetable pod yield and characters viz., pod weight, pod length, pod girth, pods per plant, pod clusters per plant, plant height, shelf life and 100 seed weight. Pod length, pods per plant, plant height and pod clusters per plant were the characters responsible for maximum vegetable pod yield by imparting highest direct effect in path coefficient analysis. The correlation was also positive for these characters. The direct effect of the traits indicated its true relationship with pod yield. Hence, emphasis should be given for these characters, while making selection for high yielding genotypes in cluster bean.

Study on genetic variability, heritability and genetic advance in Soybean[Glycine max (L.) Merrill]

2017 ◽  
Author(s):  
Ravindra Kumar Jain ◽  
Arunabh Joshi ◽  
Hem Raj Chaudhary ◽  
Abhay Dashora ◽  
Champa Lal Khatik
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Coefficient Of Variation ◽  
Harvest Index ◽  
Block Design ◽  
Crop Improvement ◽  
Test Weight ◽  
Genetic Advance ◽  
High Heritability ◽  
Weight Number

Soybean, an important legume crop, serves as a good source of protein and oil with tremendous ability to fix atmospheric nitrogen for soil improvement. To study the genetic variability, genotypic, phenotypic and environmental coefficient of variation, broad sense heritability and genetic advance in soybean, a field experiment was conducted during Kharif 2013. The experiment, laid out in a randomized block design (RBD) with three replications, comprised of 24 genotypes and observations on 9 traits of soybean were recorded. In this experiment, analysis of variance indicated that significant variation were present among the different genotypes of the soybean for all the traits under study. The highest genotypic (GCV) and phonotypic coefficient of variation (PCV) were exhibited by the test weight, number of pods per plant, harvest index and plant height. The PCV was found higher than GCV which indicates the important role of environment in the expression of the characters. High heritability and high genetic advance were observed in the test weight, number of pods per plant, harvest index and plant height. The combination of the high heritability and high genetic advance provide the clear image of the trait in the selection process for crop improvement programme.

scholarly journals Genetic Variability, Heritability And Correlation Analysis In Quantitative Traits Of Irrigated Rice (Oryza Sativa L.)

2018 ◽  
Vol 15 (3) ◽  
pp. 729-735
Author(s):  
Shiva Acharya ◽  
Abhisek Shrestha ◽  
Narayan Acharya ◽  
Ankur Poudel ◽  
Suvarna Acharya
Keyword(s):  
Genetic Variability ◽  
Grain Yield ◽  
Plant Height ◽  
Harvest Index ◽  
Oryza Sativa L ◽  
Block Design ◽  
Genetic Advance ◽  
Irrigated Rice ◽  
High Heritability ◽  
Rice Genotypes

A study was carried out to assess the genetic variability among the genotypes, correlation among traits and heritability of the traits to next generation. Eight rice genotypes were evaluated in Randomized Complete Block Design (RCBD) with three replications during Kharif (June-October) 2017 in experimental field of Lamjung Campus, Sundarbazaar, Lamjung, Western Nepal. The analysis of variance revealed statistically significant differences for all the traits under studied, which showed the presence of genetic variability among the genotypes except ineffective tiller per m2. The higher value of GCV and PCV was recorded for grain per panicle, filled grain per panicle, harvest index and grain yield. The PCV value was observed higher than the GCV value which indicated the influence of environment on the expression of the traits. High heritability along with high genetic advance as percent of mean was observed for grain per panicle, panicle length, harvest index and grain yield. However, high heritability along with moderate genetic advance as percent of mean was observed for days to 50% flowering, 1000 grain weight and plant height. The effective tiller per m2, harvest index,grain per panicle and filled grain per panicle exhibited significant and positive correlation with grain yield. Plant height and ineffective tiller perm2 exhibited negative correlation with grain yield. Grain per panicle, harvest index and grain yield could be suitable traits for selection of the rice genotypes.

Genetic Parameters of Variation and Character Association for Seed Yield and its Attributes in Mungbean (Vigna radiata L. Wilczek)

2021 ◽  
Author(s):  
Ch. Santhi Priya ◽  
D. Ratna Babu
Keyword(s):  
Grain Yield ◽  
Genetic Parameters ◽  
Association Studies ◽  
Block Design ◽  
Pooled Analysis ◽  
Genetic Advance ◽  
Randomized Complete Block Design ◽  
Additive Gene ◽  
High Heritability ◽  
Pod Length

Background: The yield levels in mung bean reached a plateau, which emphasizes breeding for varieties with improved productivity. The basic requirements of any breeding include the understanding of different genetic parameters of various yield related traits along with the knowledge with regards to interrelationships and cause and effect of those relations among the quantitative traits.Methods: In the present investigation, sixty germplasm lines were evaluated using Augmented Randomized Complete Block Design in respect of eleven quantitative traits for three years i.e., during kharif seasons of 2017-18, 2018-19 and 2019-20 to understand the genetic architecture of different genetic parameters along with associations and their cause and effects of different traits on grain yield.Result: The pooled analysis revealed significant variability for majority of traits. High heritability coupled with high genetic advance was observed in case of pods per plant, clusters per plant, plant height, test weight, seeds per pod, pods per cluster and grain yield indicating probable operation of additive gene action in inheritance of these traits. Clusters per plant and pods per plant which registered high GCV, high heritability and high genetic advance as percent of mean. The association studies revealed significant associations of pods per plant, clusters per plant, pods per cluster, branches per plant, days to maturity, pod length with grain yield per plant at both phenotypic and genotypic levels in desirable direction. Further, it was found that all these six traits which had significant association with yield also established significant magnitude of direct effects in desirable direction which contributed to the significant associations hence, can be considered simultaneously during selection.

scholarly journals GENETIC VARIABILITY, HERITABILITY AND EXPECTED GENETIC ADVANCES OF QUANTITATIVE CHARACTERS IN F2 PROGENIES OF SOYBEAN CROSSES

2014 ◽  
Vol 15 (1) ◽  
pp. 11
Author(s):  
Lukman Hakim ◽  
Suyamto Suyamto ◽  
Eman Paturohman
Keyword(s):  
Plant Height ◽  
Seed Size ◽  
Block Design ◽  
Genetic Advance ◽  
Genetic Progress ◽  
Early Maturity ◽  
Plant Seed ◽  
Randomized Block Design ◽  
Days To Maturity ◽  
Coefficient Of Variability

The F2 progenies of crosses among three soybean varieties were evaluated with their parents at Ngale Experimental Farm, Ngawi, East Java during the dry season of 2011. The experi-ment was conducted in a randomized block design with three replications. The seeds of each F2 progenies and parents were planted in two rows of 4.5 m long. Plant spacing was 40 cm x 15 cm and each hill contained one plant. Among the characters studied, seed weight per plant, number of pods per plant and days to maturity had the highest coefficient of variability with the means of 52.6%, 48.2% and 41.9%, respectively. Whereas seed size, plant height and number of reproductive nodes had moderate values of 36.9%, 35.5% and 37.4%, respectively. Number of branches and days to flowering had the lowest variability of 11.7% and 15.3%, respectively. Number of pods per plant, days to maturity, plant height and seed size had high mean estimates of heritability coupled with high genetic advance. The genetic progress of these characters that would be obtained for one generation of selection was estimated 47.2%, 45.7%, 40.9% and 40.3%, respectively. Among the agronomic characters, plant height, number of pods per plant, seed size and days to maturity had the highest coefficient of variability associated with high heritability and genetic advance. Therefore, selection for high yielding with early maturity soybean genotypes based on plant height, number of pods per plant and seed size might be possible.

scholarly journals Variabilitas Genotipe-Genotipe Mutan Krisan (Dendranthema grandiflora Tzvelv.) Generasi MV5 Hasil Irradiasi Sinar Gamma

Agrikultura ◽  
2016 ◽  
Vol 27 (3) ◽  
Author(s):  
Dedeh Kurniasih ◽  
Dedi Ruswandi ◽  
Murdaningsih Haeruman Karmana ◽  
Warid Ali Qosim
Keyword(s):  
Experimental Method ◽  
Plant Height ◽  
Gamma Ray ◽  
Phenotypic Variability ◽  
Block Design ◽  
Mutation Breeding ◽  
Dendranthema Grandiflora ◽  
Randomized Block Design ◽  
Flower Diameter ◽  
Flower Type

ABSTRACTVariability of mutant genotypes chrysanthemum (Dendranthema grandiflora Tzvelv.) fifth generationsthrough gamma iIrradiationDendranthema grandiflorum Tzvelv. is a major floriculture in Indonesia, and it is one of the five most popular flowers in Indonesia. Chrysanthemum varieties in Indonesia is largely the introduced varieties. Chrysanthemum hybridization especially for decorative flower type in order to obtain superior varieties is relatively difficult, so the mutation breeding is one approach that can be taken to get the chrysanthemum varieties with different phenotypic performances with the that parent.The purpose of this study was to obtain information genetic and phenotypic variability characters observed on chrysanthemum irradiated with gamma ray. The experiment was conducted by an experimental method using a randomized block design (RBD). The treatments consisted of 37 mutants genotypes and 11 genotypes chrysanthemums parent as controls with two replications. The results of this study indicated that the genotypes tested had broad genetic and phenotipic variation for the plant height, flower diameter, number of flower and neck lengths.Key words: Chrysanthemum mutants, Variability, Gamma ray irradiation.ABSTRAKKrisan merupakan komoditas tanaman hias utama di Indonesia dan paling banyak diminati masyarakat. Varietas-varietas krisan yang beredar di Indonesia sebagian besar merupakan varietas introduksi. Persilangan krisan khususnya untuk tipe bunga dekoratif dalam rangka memperoleh varietas unggul relatif sulit dilakukan, sehingga pemuliaan mutasi merupakan salah satu pendekatan yang dapat ditempuh untuk mendapatkan varietas krisan dengan penampilan fenotipik yang berbeda dengan induknya. Tujuan penelitian ini adalah untuk mendapatkan informasi variabilitas genetik dan fenotipik karakter-karakter yang diamati pada tanaman krisan yangd iradiasi dengan sinar gamma. Percobaan dilakukan dengan metode eksperimen menggunakan Rancangan Acak Kelompok (RAK). Perlakuan terdiri atas 37 genotipe mutan krisan dan 11 genotipe tetua krisan sebagai kontrol dengan dua ulangan. Hasil penelitian menunjukkan bahwa genotipe-genotipe yang diuji memiliki variabilitas yang luas untuk karakter tinggi tanaman, diameter bunga, jumlah kuntum dan panjang tangkai bunga.Kata kunci: Mutan krisan, Variabilitas, Sinar gamma

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