scholarly journals Variability and Genetic Divergence in Vegetable Cowpea Germplasm of Goa

2020 ◽  
Vol 15 (1) ◽  
pp. 45-51
Author(s):  
Thangam M ◽  
Ramachandrudu K ◽  
Ashok Kumar J ◽  
Safeena S A ◽  
Priya Devi S
Keyword(s):  
Significant Contribution ◽  
Warm Season ◽  
High Variability ◽  
Pod Yield ◽  
Wide Variability ◽  
Pole Type ◽  
Leguminous Crops ◽  
Pod Length ◽  
Weight Number ◽  
Number Of Seeds

Vegetable cowpea or Yard long bean [Vigna unguiculata var. sesquipedalis L. (Walp)] is a warm season leguminous crops grown especially for vegetable purpose along the west coast of India. In Goa, pole type varieties are preferred over bushy types as they offer multiple harvests with comparatively longer pods. There is wide variability found for different morphological and other traits in the local types cultivated in the state of Goa. Exploration of genetic variability in the available germplasm is a prerequisite for initiation of any successful breeding programme. Twenty nine genotypes of vegetable cowpea including three improved varieties collected from different parts of Goa state were evaluated for twelve quantitative characters including yield. High variability was observed for pod yield/plant, number of pods/plant and pod length. The high variability for pod yield per plant is apparent as the pod yield ranged from 315.25 to 2070.45 g/plant with an average of 827.48 g per plant. Pod yield depends on number of pods per plant, pod length and pod weight. Number of pods per plant ranged from 36.65 to 147.80. Pod weight depends on pod length, number of seeds per pod and hundred seeds weight. Wide variation was observed for all these characters in the present study. The GCV value was maximum for pod yield per plant (g) followed by pod weight (g) and number of pods per plant. Low values of GCV were observed for days to first flowering, days to first harvest and number of seeds per pod. In the present study, the twenty nine genotypes could be grouped into fourteen clusters based on genetic distance. High coefficient of variation was observed for pod yield per plant, pod weight, number of pods per plant and pod length indicating their significant contribution in determining the inter cluster distances.

Genetic studies in mungbean [Vigna radiata (L.) Wilczek]

2018 ◽  
Author(s):  
P. Khajudparn ◽  
O. Poolsawat ◽  
P.A. Tantasawat
Keyword(s):  
Root Length ◽  
Seed Weight ◽  
Root Length Density ◽  
Gene Effects ◽  
Plant Seed ◽  
Additive Gene ◽  
Pod Length ◽  
Weight Number ◽  
Number Of Seeds ◽  
Physiological Characters

To study the genetics of seven agronomic and physiological characters (total dry matter (TDM), number of pods per plant, seed weight per plant, 100-seed weight, number of seeds per pod, pod length and root length density) which were correlated with yield, eight crosses of mungbean were made, and the agronomic and physiological characters were evaluated in the six basic generations (P1, P2, F1, F2, BC1 and BC2) of each cross. It was found that most characters including TDM, number of pods per plant, seed weight per plant and root length density showed additive, dominance and epistatic gene effects, except for 100-seed weight, number of seeds per pod and pod length. One hundred-seed weight and number of seeds per pod possessed only additive gene effects, while pod length was controlled by both additive and dominance gene effects. The duplicate epistasis revealed the presence of a large number of non-additive gene actions controlling TDM, number of pods per plant, seed weight per plant and root length density that may hinder the improvement of these characters, and confirmed that selection of these characters in later generations would be more feasible.

Seed and yield parameters as influenced by season and plant growth regulators in dolichos bean [Lablab purpureus L. (Sweet)]

2019 ◽  
Author(s):  
S. Sajjan Ashok ◽  
Pramoda . ◽  
T.A. Malabasari ◽  
T.R. Shashidhar
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Seed Yield ◽  
Growth Regulators ◽  
Field Experiments ◽  
Foliar Spray ◽  
Rabi Season ◽  
Pod Yield ◽  
Pod Length ◽  
Number Of Seeds

Field experiments were conducted in the Department of Seed Science and Technology, University of Agricultural Sciences, Dharwad, Karnataka during 2016-17. The field experiment consisted of 18 treatment combinations involving two seasons viz., kharif 2016 and rabi 2016-17 and plant growth regulators viz., G1: Control, G2 : GA3 @ 50 ppm, G3 : NAA @ 40 ppm, G4 : Cycocel @ 100 ppm, G5 : Mepiquat chloride @ 50 ppm, G6 : Nitrobenzene @ 200 ppm, G7: TIBA @ 50 ppm, G8 : Brassinosteroids @ 200 ppm, G9 : GA3 @ 5 ppm + IAA @ 5 ppm and experiment was laid out in Factorial RBD with three replications. The more number of pods per plant (117.19), number of seeds per pod (4.25), dry pod yield per plant (118.53 g), dry pod yield per plot (2.07 kg), seed yield per plant (114.48 g), pod length (5.66 cm), seed yield per plot (2.32 kg), seed yield per hectare (1,281 kg) was recorded in rabi season than kharif. Among the plant growth regulators more number of pods per plant (120.44), number of seeds per pod (4.44), dry pod yield per plant (120.17 g), dry pod yield per plot (2.21 kg), seed yield per plant (117.60 g), seed yield per plot (2.55 kg), seed yield per hectare (1,360 kg) and pod length (6.04 cm) was recorded in NAA @ 40 ppm, followed by nitrobenzene @ 200 ppm, (119.78, 4.35, 119.54, 2.11, 116.76, 2.42, 1,299 kg and 5.93 cm, respectively). The interaction effect was found to be non-significant for majority of the characters studied. However, foliar spray of NAA @ 40 ppm during rabi season recorded higher crop growth, seed yield and quality parameters as compared to control.

scholarly journals Correlation and path coefficient analysis of seed yield and yield components of French bean (Phaseolus vulgaris L.) genotypes in sub-tropical region.

2020 ◽  
Author(s):  
S. Kalauni
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
French Bean ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Pod Yield ◽  
Pod Length ◽  
100 Seed Weight ◽  
Number Of Seeds

Abstract This research aims to determine the relationship between yield and yield components of French bean using multivariate statistical techniques. The study was conducted at Horticulture Research Station, Dailekh, Nepal for consecutive three year of 2016-2018. In this study, six French bean genotypes were used. The following measurements and observations were made: germination (%), pod length (cm), pod diameter (mm), individual pod weight and number of seeds pod-1, number of dry pods plant-1, dry pod yield plant-1 and dry pod yield (t/ha), 100 seed weight (g) and seed yield (t/ha). Highly significant and positive correlation was recorded between seed yield and individual pod weight (r=0.659***), number of seed pod-1 (r=0.548**) and pod length (0.459*). Conversely, pod diameter showed a negative and non-significant (-0.025) correlation on seed yield. Based on simple regression analysis, linear regression of individual pod weight, number of seed pod-1 and pod length leads to an increase in the seed yield (t/ha) by 0.188, 0.285 and 0.103 units respectively. From the path coefficient analysis maximum positive direct effect on seed yield was recorded by number of seeds pod-1 (0.767) followed by 100 seed weight (0.530) and individual pod weight (0.429). Also, stepwise multiple linear regression analysis revealed that three traits including individual pod weight, 100 seed weight and number of dry pod plant-1 with R2 = 68.22% showed their overall contribution towards seed yield. The rest of the variance (R2 = 31.78%) was contributed by the variables that were not included in the study. Results concerning four statistical methods showed that individual pod weight appeared to be most effective contributor of seed yield followed by the number of seed pod-1, 100 seed weight, and pod length. Therefore, attention should be paid to these characters in any breeding program during the selection criteria for improving the seed yield.

scholarly journals PLASTICITY AND STABILITY OF LEGUMINOUS CROPS ACCORDING TO ECONOMICALLY VALUABLE TRAITS AND SELECTION INDICES

2019 ◽  
pp. 111-136
Author(s):  
Oleksandr Mazur ◽  
Olena Mazur
Keyword(s):  
Seed Weight ◽  
Selection Index ◽  
Common Beans ◽  
Hydrothermal Regime ◽  
Grain Productivity ◽  
Selection Indices ◽  
Economically Valuable Traits ◽  
Leguminous Crops ◽  
Weight Number ◽  
Number Of Seeds

The varieties of common beans were distinguished by the number of productive nodes,i.e. UD0302642 – 5.2 pcs., UD0302683 – 4.8 pcs., UD0303533 – 4.75 pcs. These regression coefficients were classified as highly plastic – (bi> 1). The highest indexes of the selection index (seed weight / number of beans per plant) were obtained from the common bean varieties, i.e. UD0300658 – 0.8, UD0302746 – 0.69, UD0302256 and UD0300565 – 0.62. These varieties belong to different genotypes in response to hydrothermal regime change. The highest indexes of selection index (seed weight / number of seeds per plant) provided varieties of common beans, which were characterized by high response to the improvement of hydrothermal regime, UD0300658 – 0.27, UD0300232 – 0.21 and UD0302256 – 0.2. The number of productive nodes is an important feature that determines the grain productivity of soybean varieties, the number of productive units determines the number of beans and seeds per plant. According to the number of productive nodes on the plant, soybean variety samples were distinguished, i.e. UD0202563 – 14.0 pcs., UD0200983 – 13.6 pcs., UD0202201 – 13.6 pcs., UD0202529 – 13.6 pcs. The high number of seeds on the plant, as well as the number of beans, provided varieties of soybeans, which were highly plastic in response to the improvement of the hydrothermal regime and conservative to change agrophone cultivation. The high-plastic varieties included UD0202201, UD0202563, UD0202566. Conservative agrophone replacement cultivation included UD0200983 and UD0202529. Higher grain productivity was provided by soybean varieties: UD0202566 – 5.6 g, UD0202201 – 5.5 g, UD0202557 – 5.4 g, UD0202529 – 5.4 g. These varieties according to the parameters of adaptability and stability were treated as highly plastic UD0202566, UD0202201, UD0202557, so with a conservative reaction to the change in cultivation agrophone – UD0202529.

↵​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.

scholarly journals Influence of Sulphur and Boron on Growth and Yield of Garden Pea (Pisum sativum L.)

2021 ◽  
pp. 1-13
Author(s):  
Shovan Krishna Das ◽  
Khaleda Khatun ◽  
Tahmina Mostarin ◽  
Mutasim Fuad Shuvo ◽  
Kanij Fatima ◽  
...  
Keyword(s):  
Plant Height ◽  
Growth And Yield ◽  
Treatment Combination ◽  
Garden Pea ◽  
Pod Yield ◽  
Pisum Sativum L ◽  
Two Factors ◽  
Green Pea ◽  
Pod Length ◽  
Number Of Seeds

An experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka during the period from October, 2018 to March, 2019 to study the influence of sulphur and boron on growth and yield of garden pea. The experiment comprised of two factors. Factor A: Levels of Sulphur (4 levels); S0: 0 kg S/ha (Control), S1: 10 kg S/ha, S2: 20 kg S/ha, S3: 30 kg S/ha and Factor B: Levels of Boron (4 levels); B0: 0 kg B/ha (Control), B1: 1 kg B/ha, B2: 2 kg B/ha, B3: 3 kg B/ha. This experiment was laid out in Randomized Complete Blocked Design (RCBD) with three replications. Sulphur and Boron application influenced significantly on most of the parameters. In case of sulphur, maximum plant height (50.84 cm), number of pods per plant (14.00), pod length (8.95 cm), number of seeds per pod (5.56) and green pod yield (10.76 t/ha) were recorded from S3 treatment. In case of boron application, maximum plant height (49.17 cm), number of pods per plant (13.48), pod length (8.66 cm), number of seeds per pod (5.41) and green pod yield (10.14 t/ha) were found in B2 treatment. Among the treatment combination, S3B2 treatment gave the highest green pod yield (12.19 t/ha) and the lowest (5.38 t/ha) was obtained from S0B0 treatment. So, garden pea sown at 30 kg S/ha with 2 kg B/ha for suitable green pea production in Dhaka region.

Biometrical studies of yield and related traits in advance breeding lines of bush type vegetable cowpea [Vigna unguiculata (L.) Walp.]

2017 ◽  
Author(s):  
Hira Lal ◽  
B. Rajasekhar Reddy ◽  
Vishwa Nath
Keyword(s):  
Genetic Divergence ◽  
Strong Positive Correlation ◽  
Effect Analysis ◽  
Breeding Lines ◽  
Pod Yield ◽  
Horticultural Traits ◽  
Peduncle Length ◽  
Pod Length ◽  
Positive Effect ◽  
Number Of Seeds

Sixty-six bush type advance breeding lines of vegetable cowpea developed at ICAR - Indian Institute of Vegetable Research (ICAR-IIVR), Varanasi were evaluated for different horticultural traits for genetic variability, character association, cause-effect analysis and genetic diversity among the genotypes through D2 statistics. High values of genotypic and phenotypic coefficient of variations, heritability (h2B) and genetic advance were recorded for pod yield per plant, number of peduncles and pods per plant, peduncle length, number of primary branches per plant, pod length, pod weight and number of seeds per pod. Pod yield per plant showed strong positive correlation with number of peduncles and pods per plant, pod weight, pod length, number of seeds per pod and number of primary branches per plant, while negative correlation with days to 50% flowering at genotypic and phenotypic levels. The maximum direct positive effect on pod yield per plant was found contributed by number of pods per plant followed by pod weight. Based on degree of divergence the genotypes get grouped into seventeen clusters. The top three characters which contributed most towards the genetic divergence were number of peduncles per plant, peduncle length and pod length. The genotypes of cluster VII showed maximum genetic divergence with genotypes of cluster VIII. Further, cluster VII had the high yielding genotypes, while cluster XVII had early flowering genotypes. Thus, crossing between genotypes of these groups may result in high yielding early genotypes.

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.

scholarly journals Correlation and Path Coefficient Analysis of Seed Yield and Yield Components of French Bean (Phaseolus vulgaris L.) Genotypes in Sub-tropical Region

2020 ◽  
Vol 8 (9) ◽  
pp. 1928-1934
Author(s):  
Santosh Kalauni ◽  
Deependra Dhakal
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
French Bean ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Pod Yield ◽  
Pod Length ◽  
100 Seed Weight ◽  
Number Of Seeds

This research aims to determine the relationship between yield and yield components of French bean using multivariate statistical techniques. The study was conducted at Horticulture Research Station, Dailekh, Nepal for consecutive three year of 2016-2018. In this study, six French bean genotypes were used. The following measurements and observations were made: germination (%), pod length (cm), pod diameter (mm), individual pod weight and number of seeds pod-1 , number of dry pods plant-1, dry pod yield plant-1 and dry pod yield (t/ha), 100 seed weight (g) and seed yield (t/ha). Highly significant and positive correlation was recorded between seed yield and individual pod weight (r= 0.659***), number of seed pod-1 (r=0.548**) and pod length (0.459*). Conversely, pod diameter showed a negative and non-significant (-0.025) correlation on seed yield. Based on simple regression analysis, linear regression of individual pod weight, number of seed pod-1 and pod length leads to an increase in the seed yield (t/ha) by 0.188, 0.285 and 0.103 units respectively. From the path coefficient analysis maximum positive direct effect on seed yield was recorded by number of seeds pod-1 (0.767) followed by 100 seed weight (0.530) and individual pod weight (0.429). Also, stepwise multiple linear regression analysis revealed that three traits individual pod weight, 100 seed weight and number of dry pod plant-1 account for 68.22% of the total variation in seed yield, while only 31.78% was explained by rest of the variables. Summarizing outcomes of four statistical methods showed that individual pod weight appeared to be the most effective contributor of seed yield followed by the number of seed pod-1, 100 seed weight, and pod length. Therefore, focus should be laid on these characters in future breeding program while selecting genotypes for sub-tropics for improving the seed yield.

STUDY OF EFFECT OF EMS, MMS AND GR ON YIELD CONTRIBUTING TRAITS IN URDBEAN, VIGNA MUNGO

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
A. B. SAGADE
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Seed Weight ◽  
Inhibitory Effect ◽  
Individual Plant ◽  
Mean Values ◽  
Methane Sulphonate ◽  
Pod Length ◽  
100 Seed Weight ◽  
Number Of Seeds

The study of the effect of three well known mutagens, ethyl methane sulphonate (EMS), methyl methane sulphonate (MMS) and gamma rays (GR) on the yield contributing traits of the urdbean variety TPU-4 were carried out in the M3 generation. Effect of selected mutagenic treatments/doses of EMS (0.02, 0.03 and 0.04 M), MMS (0.0025, 0.05 and 0.01 M) and (GR) (30, 40 and 50 KR) on different yield contributing traits like plant height, plant spread, number of pods per plant, pod length, number of seeds per pod, seed yield per plant and 100 seed weight were analyzed in the M3 populations of the variety TPU-4. Seeds of M2 plants and control were harvested separately and sown to raise M3 population.. Genetic variabilty in the mutagen administered M3 progeny of the urdbean variety TPU-4 was analyzed by employing statistical methods. Data on mean values and shift in the mean of seven quantitative traits was evaluated on individual plant basis. The experimental findings revealed that concentrations / dose of the all these mutagens showed inhibitory effect on plant height, number of pods per plant, pod length and number of seeds per pod. Lower concentrations of mutagens exerted a promotory effect on plant spread, 100 seed weight and seed yield per plant while higher concentrations of these mutagens inhibited them to different extent.

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