↵​Investigations on Per se Performance, Genetic Variability and Correlations in Vegetable Cowpea [Vigna unguiculata (L.) Walp.] Germplasm for Yield and Its Attributing Traits

2021 ◽  
Author(s):  
P. Saidaiah ◽  
S.R. Pandravada ◽  
A. Geetha ◽  
V. Kamala
Keyword(s):  
Analysis Of Variance ◽  
Genetic Parameters ◽  
Block Design ◽  
Superior Performance ◽  
International Institute ◽  
Genetic Advance ◽  
Pod Yield ◽  
Per Se ◽  
Pod Length ◽  
Weight Number

Background: Cowpea is a multiple-purpose, drought-tolerant, climate-smart and leguminous pulse crop. Recent studies established this crop as a potential vegetable crop with nitrogen fixation ability and round the year cultivation unlike French bean. In several crops, exotic collections imported into India have positive impact in release of new varieties. Per se performance evaluation is the best option for identification of high yielding varieties. Genetic parameters controlling the expression of yield and its components are essential in determining the effect of such genetic parameters and association among the characters enhancing the green pod yield of vegetable cowpea. Methods: A set of eighty seven genotypes of vegetable cowpea including 59 exotic collections imported from International Institute of Tropical Agriculture (IITA), Nigeria; 24 indigenous germplasm collected from different parts of India and four released commercial varieties were evaluated in a randomized block design during Kharif, 2019. The analysis of variance by Panse and Sukhatme (1985), genetic parameters by Burton and De Vane (1953) and heritability in a broad sense and genetic advance by methods given by Allard (1960) and Johnson et al. (1955) were carried out to validate the results. Result: The analysis of variance revealed that genotypes exhibited significant differences for all the characters. Based on per se performances, the exotic collections for flowering and maturity traits and check varieties followed by indigenous collections for yield and yield characters have exhibited superior performance. The highest range of variation was observed for green pod yield per plant. The highest variation was observed for pod yield per plant and number of pods per plant. The higher estimates of GCV and PCV ( greater than 20%) were registered by pod width, mature pod weight, number of pods per plant and pod yield per plant, which indicates partly the interaction of the genotypes with the environment influencing the expression of these characters. High heritability along with high genetic advance was observed for green pod yield per plant, pod length, pod width and number of pods per plant indicating that these traits were mainly governed by additive gene action and responsive for their further improvement. The maximum coefficient of variation was recorded for pod width followed by green pod yield per plant, pod weight and pod length. Green pod yield per plant has a positive and significant correlation with pod length, pod width, mature pod weight, number of pods per plant and number of seeds per pod. Hence, these characters should be considered, while selecting the genotypes for their further genetic improvement in vegetable cowpea.

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 AN INVESTIGATION ON HETEROSIS, GENERAL AND SPECIFIC COMBINING ABILITY FOR POD YIELD AND ITS CONTRIBUTING PARAMETERS IN OKRA [ABELMOSCHUS ESCULENTUS (L.) MOENCH]

2021 ◽  
Vol 9 (08) ◽  
pp. 334-341
Author(s):  
Shailesh Kapadia ◽  
◽  
Kirti Patel ◽  
P.K. Patel ◽  
Mempal D. ◽  
...  
Keyword(s):  
Combining Ability ◽  
Quantitative Traits ◽  
Block Design ◽  
Abelmoschus Esculentus ◽  
F1 Hybrids ◽  
Research Centre ◽  
Pod Yield ◽  
Randomized Block Design ◽  
Per Se ◽  
Almost All

The heterosis and combining ability studies were conducted by utilizing modified Line X Tester mating design involving 6 Lines and 9 testers of Okra [Abelmoschus esculentus (L.) Moench]. The breeding material involving fifty four F1 hybrids along with 15 parents with one commercial check were evaluated during Kharif 2020 in a Randomized Block Design (R.B.D.) with three replications at Research Centre of Goldking Biogene Private Limited with an aim to estimate the magnitude of heterosis and to identify the good parents and good hybrid combinations for pod yield and other quantitative traits. Among the parents GKOF-1, GKOF-5 and GOM-7 were found to be good general combiners for pod yield per plot. Among the lines GKOF-3, GKOF-4 and GKOF-6 and testers GKOM-4, GKOM-5, GKOM-7 and GKOM-9 were found to be involved in exhibiting significant sca effects for almost all characters. Among the crosses GKOF-2 X GKOM-5, GKOF-1 X GKOM-8 and GKOF-6 X GKOM-7 exhibited high per se performance for pod yield per plot. Further the cross GKOF-1 X GKOM-7, GKOF-4 X GKOM-9 and GKOF-6 X GKOM-4 revealed highest positively significant sca effects for pod yield per plot.

scholarly journals Genetic variability, heritability and genetic advance of yield and yield contributing characters of lablab bean (Lablab purpureus L.)

2015 ◽  
Vol 26 (1) ◽  
pp. 22-25
Author(s):  
M Asaduzzaman ◽  
MJH Bhuiyan ◽  
MA Hossain ◽  
SA Raffi
Keyword(s):  
Genetic Variability ◽  
Phenotypic Variation ◽  
Genotypic Variation ◽  
Genetic Advance ◽  
Lablab Purpureus ◽  
Floodplain Soil ◽  
Green Seed ◽  
Pod Yield ◽  
Days To Maturity ◽  
Pod Length

Studies on genetic variability, heritability and genetic advance were carried out with 14 genotypes of Lablab bean (Lablab purpureus L.) cultivated at the Agro-ecological zone9 (AEZ-9) comprising the Old Brahmaputra Floodplain Soil. Considerable amount of genotypic and phenotypic coefficient of variation was observed for all characters studied. Phenotypic variation was greater than that of the genotypic variations for all the characters. The greater portion of total phenotypic variation was due to the genotypic variation. Highest genetic and phenotypic variation were observed for green pod yield per plant (1882.68 and 2108.43, respectively) and 100-green seed weight (1380.91 and 1452.07, respectively) Heritability values were higher for days to maturity (81.37) , number of raceme per plant (80.62), pod length (99.43), pod width (99.27), green pod yield per plant (89.29), dry shelling percentage (91.58), seed yield per plant (84.93) and protein content (98.11) indicating the better potentials of improving these characters for improvement of yield. Maximum genetic advance expressed as percentage of mean was recorded for green pod yield per plant (95.22).Progressive Agriculture 26:22-25, 2015

scholarly journals Estimating genetic variability, gene effect, heritability, and genetic advance of yield component agronomic traits: towards the improvement of peanut agronomic traits.

2021 ◽  
Author(s):  
Addisu Getahun
Keyword(s):  
Growth Rate ◽  
Seed Yield ◽  
Agronomic Traits ◽  
Broad Sense ◽  
Broad Sense Heritability ◽  
Genetic Advance ◽  
Seed Length ◽  
Pod Yield ◽  
Seed Width ◽  
Pod Length

Abstract Background: Peanut is an important oil and legume food crop for human and feed for livestock. Peanut yield association characters like pod and seed traits are the most widely targeted parameter. Peanut yield is a function of growth rate, duration of reproductive growth, and the fraction of crop growth rate which are partitioned toward pod yield. For effective selection, heritability along with genetic advance is more useful than the estimation of only heritability. Methods: The present study field design was laid out using single row and single plot techniques. Pod length, pod width, pod length by width, seed length, seed width, seed length by width yield contributing data were collected both from two parents and 251 RIL populations across two locations in two consecutive cropping seasons (2015/2016 & 2016/2017). Data analysis was computed through SAS ver.9.4 and PBTools ver.1.4. Results: The highest genotypic coefficient of variation was found in pod length (22.47), number of pods per plant (23.66), pod yield per plant (28.43), multiple seedpods per plant (30.44). The highest narrow sense heritability was found in seed length (66%), pod length by width (87%), and pod thickness (93%), meanwhile, the highest broad sense heritability values have been recorded in seed length (99%), seed length by width (99%), number of pods per plant (95%), shelling percentage (94%), pod thickness (93%), thickness of pod shells (92), seed yield per plant (89%), seed thickness (87%), seed width (83%), multiple seedpods per plant (79%), and pod weight per plant (75%). The highest genetic advance as percent of mean values occurred in multiple seedpods per plant (215.44), number of pods per plant (85.28), pod yield per plant (64.90), seed yield per plant (63.49), thickness of pod shells (56.87), pod length by width (36.55), seed length by width (30.98), and seed length (23.26). Conclusions: Additive gene effects were observed in the traits of seed length, seed length by width, pod length, pod width, pod length by width, pod thickness, thickness of pod shells, and multiple seedpods per plant. The highest broad sense heritability values coupled with high genetic gain were estimated in multiple seedpods per plant, number of pods per plant, pod weight plant, seed weight per plant, thickness of pod shells, pod length by width, seed length by width. Therefore, in the present study, use more pod and seed-related traits than the previous findings.

scholarly journals The GT biplot analysis of green bean traits

2018 ◽  
Vol 48 (6) ◽  
Author(s):  
Tâmara Rebecca Albuquerque de Oliveira ◽  
Geraldo de Amaral Gravina ◽  
Gustavo Hugo Ferreira de Oliveira ◽  
Kleberson Cordeiro Araújo ◽  
Lanusse Cordeiro de Araújo ◽  
...  
Keyword(s):  
Grain Yield ◽  
Analysis Of Variance ◽  
Seed Weight ◽  
Block Design ◽  
Principal Component ◽  
Green Bean ◽  
Plant Seed ◽  
Pod Yield ◽  
Biplot Analysis ◽  
Number Of Seeds

ABSTRACT: The green bean (Phaseolus vulgaris L.) is a nutrient-rich vegetable much appreciated; although, little studied, in Brazil. The aim of the current study was to investigate the nature of traits of interest, as well as to select plants for the green bean breeding program based on genotype vs. trait biplot analysis. The experiment followed a randomized block design, with 4 repetitions and 17 genotypes. Analysis of variance, principal component analysis and biplot charts were performed to analyze the number of pods per plant, the number of seeds per pod, the number of seeds per plant, seed weight per plant, 100-seed weight, as well as grain and pod yields. The analysis of variance showed genetic variability between genotypes. Grain yield, pod yield and seed weight per plant were highly correlated. The number of seeds per pod was negatively correlated with pod weight, grain weight and with seed weight per plant. Lines Feltrin and UENF 14-30-3 were indicated to increase gains in variables such as grain yield and pod yield.

scholarly journals Evaluation of Vegetable Type Cowpea Varieties for Commercial Production in the River Basin and Low Hill Areas

1970 ◽  
Vol 7 ◽  
pp. 16-20 ◽  
Author(s):  
YR Pandey ◽  
AB Pun ◽  
RC Mishra
Keyword(s):  
River Basin ◽  
Rainy Season ◽  
Block Design ◽  
Commercial Production ◽  
Western Region ◽  
Pod Yield ◽  
Research Journal ◽  
Randomized Complete Block Design ◽  
Cowpea Varieties ◽  
Pod Length

Five vegetable type cowpea varieties were evaluated in farmer's field with farmers participationat Chambas, Tanahu (450 masl) in two consecutive years 2003 and 2004 rainy season to identifysuitable vegetable type cowpea varieties for commercial production in the river basin and lowhill areas of western region. The experiment was arranged in randomized complete block design(RCBD) with 5 replications, farmer as replication. Prakash variety used as the check was earliestin flowering and days to first harvest from sowing with an average of 37 and 45 daysrespectively. Pod diameter and pod length among the varieties was significantly different. Thebiggest sized and longest pods were produced by IT 86F-2062-5 (Green) with an average of0.990 cm in diameter and 25.60 cm in length. The highest green pod yield (4.971 t/ha) wasproduced by IT 86F-2062-5 (Green). Despite the earliness in flowering, fruiting and harvesting,Prakash produced the smallest (0.668 cm) and shortest (16.21 cm) pods and ultimately thelowest yield (2.443 t/ha). IT 86F-2062-5 (Green) produced the biggest size (0.990 cm diameter)and longest (24.60 cm) green pods as compared to other varieties IT 86D-792, IT 86F-2062-5(White), IT 86D-798 and Prakash with white color, small size and fibrous pods. The results ofthe experiment and farmers preferences revealed that the variety IT 86F-2062-5 (Green) couldbe recommended for commercial production in the river basin and low hill areas of westernregion.Key words: Cowpea; green pods; river basin; variety; vegetableDOI: 10.3126/narj.v7i0.1861Nepal Agriculture Research Journal Vol.7 2006 pp.16-20

scholarly journals Genetic Analysis of Some Agronomic Traits in Okra (Abelmoschus esculentus L. [Moench])

2020 ◽  
Vol 23 (1) ◽  
pp. 56-59
Author(s):  
Muyideen Oluseyi Olayiwola ◽  
Deborah Doyinsola Olaniran ◽  
Adesola Lateef Nassir ◽  
Omolayo Johnson Ariyo
Keyword(s):  
Plant Height ◽  
Combining Ability ◽  
Gene Action ◽  
Agronomic Traits ◽  
Block Design ◽  
Additive Gene Action ◽  
Pod Yield ◽  
Early Maturing ◽  
Additive Gene ◽  
Pod Length

AbstractA study was carried out at the Federal University of Agriculture Abeokuta, Nigeria to determine the gene action underlying the inheritance of important agronomic traits as well as the general combining ability (GCA) and specific combining ability (SCA) of the parents and hybrids, respectively. Ten hybrids were developed by crossing five lines to two testers. The hybrids and parents were evaluated on the field in a randomised complete block design replicated three times, and data were collected on days to 50% flowering, number of branches, stem diameter, plant height, pod length, pod width, pod weight, number of pods and pod yield. The data were subjected to line by tester analysis and results showed substantial variability among the genotypes for some of the characters measured. Days to 50% flowering, number of pods and pod yield were largely under additive gene action while non-additive gene action was more important in the inheritance of plant height. Favourable GCA and SCA effects for days to 50% flowering were observed in NGB00356, NGB00326 and NGB00347 × NGB00326, respectively. The tester NGB00326 had a positive and significant GCA effect for number of pods while the highest positive SCA effect for pod yield was found in NGB00297 × NGB00326. Thus, NGB00356 and NGB00326 could be considered as sources of alleles for development of early maturing while the cross NGB00297 × NGB00326 could be exploited for high yielding okra genotypes.

scholarly journals Water-retaining polymer as a soil conditioner in cowpea under water stress

2019 ◽  
Vol 9 (4) ◽  
pp. 680-686
Author(s):  
Marilia Barcelos Souza Lopes ◽  
Helio Bandeira Barros ◽  
Aloísio Freitas Chagas Júnior ◽  
Manoel Mota dos Santos ◽  
Niléia Cristina da Silva ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Water Stress ◽  
Grain Yield ◽  
Computer System ◽  
Analysis Of Variance ◽  
Block Design ◽  
Soil Conditioner ◽  
The North ◽  
Randomized Block Design ◽  
Pod Length

Cowpea is no longer a family-oriented crop. Today it is cultivated by medium and large farmers in the North and Northeast, due to their adaptation to edaphoclimatic conditions. The objective of this work was to evaluate the efficiency of hydrogel utilization in the retention and availability of water for the development and production of Cowpea beans when subjected to water stress. The experiment was conducted in a randomized block design with four replications in a 5 x 2 factorial scheme, with five concentrations (0, 5, 10, 15 and 20 kg ha-1) and two sources of hydrogels (Hydroplan-EB HyC and Polim-Agri). The cowpea cultivar used was BRS Vinager. The following characteristics were evaluated: number of pods per plant; Number of grains per pod; Pod length: one hundred grain mass and grain yield. The data were submitted to analysis of variance, with the application of the test F. Regression analysis was performed with the help of the SISVAR computer system. The use of hydrogel was an alternative to reduce losses resulting from the action of water stress; the concentrations of hydrogels between 15 and 18 kg ha-1 resulted in higher number of pods per plant, number of grains per pod, the mass of one hundred grains and yields of grains.

Study of genetic variability, character association, path analysis and selection parameters for heterotic recombinant inbred lines of garden peas (Pisum sativum var. Hortense L.) under mid-hill conditions of Himachal Pradesh, India

2015 ◽  
Author(s):  
Viveka Katoch ◽  
Prem Singh ◽  
Mayanglambam Bilashini Devi ◽  
Akhilesh Sharma ◽  
G. D. Sharma ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Path Analysis ◽  
Plant Height ◽  
Yield Potential ◽  
Genetic Advance ◽  
Recombinant Inbreds ◽  
Pod Yield ◽  
Positive Direct ◽  
L 14 ◽  
Pod Length

The present investigations involving forty five diverse pea recombinant inbreds and three standard checks were carried out for two successive years during 2011-2012 and 2012-13. The objective of the study was to ascertain genetic variability, heritability, genetic advance, correlation and path coefficient among yield and other horticultural and quality traits and identification of superior recombinants for their utilization in crop improvement programme. Wide range of variability was observed for most of the characters under study. The magnitude of phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variability (GCV) for all the traits. High phenotypic and genotypic coefficient of variations were recorded for protein content, ascorbic acid, plant height and pod yield per plant for both the years. Pod yield per plant and plant height exhibited high heritability associated with high genetic advance in the respective years indicating the additive gene action for their expression and are likely to respond better to selection. Pod yield showed a positive and significant correlation with number of pods per plant, pod length and number of seeds per pod both the years. Path analysis revealed that number of pods per plant and pod length have highest positive direct effect both the years and thus it may be treated as selection criteria for isolating higher yielding genotypes in garden peas. In heterosis study, some of the recombinant inbreds were found superior over standard checks which include L-14 and L-13 for pod yield/plant, number of pod/plant and earliness. These findings can be further utilized to develop and enhance the yield potential of garden pea.

scholarly journals Estimation of Genetic Parameters in Early Maturing Sugarcane Clones for Yield and Quality Traits

2020 ◽  
pp. 115-121
Author(s):  
G. Rakesh ◽  
G. Eswara Reddy ◽  
N. Swapna ◽  
P. Jalender Naik ◽  
Y. Swathi ◽  
...  
Keyword(s):  
Genetic Parameters ◽  
Block Design ◽  
Cane Sugar ◽  
Cane Yield ◽  
Phenotypic Variance ◽  
Genetic Advance ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Cane Weight ◽  
Level Of Significance

Aims: To make pragmatic selection of best performing sugar cane clones, it is compulsory to know traits having high values of heritability. Hence, this work was initiated with the aim of estimating genetic parameters of twelve sugarcane clones planted in randomized block design with three replications. The tested clones were significantly different for all most all the traits at 1% and 5% level of significance. Genotypic and phenotypic variance, GCV and PCV, heritability in broad sense (h2) and genetic advance as percent of mean was calculated for all traits taken. Results: Low genotypic variances were obtained as compared to the corresponding phenotypic variances for the traits taken. High GCV and heritability coupled with high genetic advance as percent mean were obtained for Shoots at 240 DAP (Days After Planting) (1000/ha), Single cane weight at harvest (Kg), commercial cane sugar (CCS) at 8 months stage (%), CCS at 10 months stage (%), Sugar yield at harvest (t/ha) and Cane yield at harvest (t/ha). Hence, selections based on these characters are appropriate for varietal improvement.

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