Analysis of morphological characters inter-relationships in the germplasm of mungbean [Vigna radiate (L.) Wilezek] in the hot arid climate

2016 ◽  
Vol 39 (1) ◽  
Author(s):  
Om Vir ◽  
A. K. Singh
Keyword(s):  
Genetic Variability ◽  
Short Duration ◽  
Seed Yield ◽  
Block Design ◽  
Morphological Characters ◽  
Cluster Number ◽  
Number Of Clusters ◽  
Days To Maturity ◽  
Pod Number ◽  
Number Of Seeds

The 38 indigenous and exotic accessions of mungbean were evaluated in a randomized complete block design with three replicates during <italic>summer</italic> and <italic>kharif</italic> seasons of fragile climate of Rajasthan to estimate the presence of genetic variability, inter-characters associations, to identify a suitable short duration accession for cultivation during <italic>summer</italic> and to compare the relative performance of the genotypes in two seasons. The high degree of genetic variability was estimated during both seasons for seed yield per plant (g), 100-seed weight (g.), number of seeds per pod, number of pods per plant, number of pods per cluster, number of branches per plant, number of clusters per plant, plant height (cm.), number of days to 50% flowering and number of days to maturity. The moderate to high heritabilities coupled with moderate to high expected genetic advance were observed for all studied traits. Number of seeds per pod, number of pods per plant, number of pods per cluster, number of clusters per plant, days to 50% flowering and days to maturity had positive and significant correlations with seed yield per plant. The accession IC 39289-P<sub>4</sub> had been identified to be of short duration of 50 days. The accessions PLG 62, EC 520035, IC 305291, IC 39383, IC 39333, IC 39403 during <italic>summer</italic> season and EC 511379, PLM-14, IC 324021, EC 511371, IC 370497 during <italic>kharif</italic> seasonexhibited superiority in terms of seed yield over best check.

Genetic Divergence Analysis in Mungbean (Vigna radiata L. Wilczek)

2019 ◽  
Vol 4 (01) ◽  
pp. 106-109
Author(s):  
Amit Tomar ◽  
D. K. Upadhyay
Keyword(s):  
Seed Weight ◽  
Block Design ◽  
Number Of Clusters ◽  
Randomized Block Design ◽  
Days To Maturity ◽  
Cluster Distance ◽  
Farm Crop ◽  
Pod Length ◽  
100 Seed Weight ◽  
Number Of Seeds

An experiment involving 45 genotypes/strains of mungbean was conducted during kharif 2018 at University Farm (Crop Cafeteria) of Rani Lakshmi Bai Central Agricultural University (RLBCAU), Jhansi in a Randomized Block Design with three replications. Data were recorded and analyzed for 10 characters viz.; days to 50% flowering, days to maturity, plant height (cm), number of primary branches per plant, number of clusters per plant, number of pods per plant, pod length (cm), number of seeds per pod, 100-seed weight (g) and grain yield per plant (g). All the forty five genotypes were grouped into seven different clusters using D2 statistics. Cluster-I, II, III, IV, V, VI and VII had 8, 5, 4, 5, 13, 2 and 8 genotypes, respectively. The greatest inter cluster distance (297.39) was between cluster-II and cluster-V.

scholarly journals Genetic variability and yield components of yard long bean (Vigna unguiculata var. sesquipedalis L.)

2021 ◽  
Vol 82 (3) ◽  
pp. 107-122
Author(s):  
Zakia Sultana ◽  
Nahid Ahmed ◽  
Mohammad Saiful Islam ◽  
Abdur Rahim
Keyword(s):  
Genetic Variability ◽  
Vigna Unguiculata ◽  
Block Design ◽  
Pod Yield ◽  
Randomized Complete Block Design ◽  
Days To Maturity ◽  
Cluster Distance ◽  
High Heritability ◽  
Positive Effect ◽  
Pod Number

Yard long bean (Vigna unguiculata var. sesquipedalis L.) is one of the important leguminous vegetables in Bangladesh. However, yield of this vegetable is much lower in Bangladesh compared to other yard long beangrowing countries. Therefore, it is crucial to improve the yield of this vegetable. In the present study, genetic variability, heritability, character association and genetic diversity were evaluated on randomized complete block design with three replications among seven-yard-long bean genotypes. The genotypes were significantly variable for the studied characters. High genotypic and phenotypic coefficient of variation was observed in number of pods per plant and pod yield per plant. Accordingly, high heritability together with high genetic advance in percent of mean was observed in number of pod per plant, pod diameter and hundred seed weight. The correlation studies revealed that pod yield per plant showed significant positive correlation with number of seed per pod, number of pods per plant while significantly negative correlation with days to marketable harvest at both genotypic and phenotypic level. Path analysis revealed days to first flowering, days to maturity, number of pods per plant, pod weight and number of seeds per pod had direct positive effect on pod yield per plant. The studied genotypes were clustered into 3 groups with highest of inter-cluster distance between cluster I and III while lowest between cluster II and III. The genotypes of cluster I exhibited higher mean performance while lower in cluster III for important traits including pod yield per plant.

scholarly journals Genetic Variability and Path Analysis of Groundnut (Arachis hypogaea L.)

1970 ◽  
Vol 9 (1-2) ◽  
pp. 29-36 ◽  
Author(s):  
MA Zaman ◽  
M Tuhina-Khatun ◽  
MZ Ullah ◽  
M Moniruzzamn ◽  
KH Alam
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Seed Yield ◽  
Agricultural Research ◽  
Block Design ◽  
Positive Association ◽  
Research Station ◽  
Genetic Advance ◽  
Days To Maturity ◽  
Positive Direct

An experiment was conducted at the Research farm of Regional Agricultural Research Station, BARI, Hathazari, Chittagong during Rabi season (December to April), 2009-2010 for estimation of genetic variability, genetic parameters and correlation coefficient among different yield components in a randomized block design with three replications. Thirty four groundnut genotypes were tested in the experiment. Highly significant variations were observed among the genotypes for all the characters studied. The highest genetic coefficient of variation was observed for karnel yield per hectare, followed by karnel yield per plant, branches per plant, immature and mature nuts per plant, 100 kernal weight and plant height. The highest heritability was observed in karnel yield per pant (95.08%), followed by karnel yield per hectare (94.38%), 100 kernal weight (87.01%), immature and mature nuts per plant (82.24%, 80.32%), branches per plant (79.54%) and 100 nut weight (78.98%), while high values of genetic advance were obtained in all the characters except days to maturity and days to 50% flowering. The seed yield per plant showed the highly significant and positive association with nut size, number of nuts per plant, karnel size and days to 50% flowering. The number of mature nuts per plant had high positive direct effect on seed yield per hectare followed by nut size, shelling percentage, days to 50% flowering and days to maturity. Therefore, branches per plant, plant height, nuts per plant, nut size, karnel size, days to 50% flowering, shelling percentage and days to maturity were identified to be the important characters which could be used in selection for yield. Keywords: Genetic variability; heritability; genetic advance; groundnut DOI: http://dx.doi.org/10.3329/agric.v9i1-2.9476 The Agriculturists 2011; 9(1&2): 29-36

scholarly journals Assessment of Genetic Variability and Correlation of Yield Related Traits in Chickpea (Cicer arietinum L.)

2021 ◽  
pp. 181-188
Author(s):  
Veeramalla Rohith Guptha ◽  
Gabrial M. Lal ◽  
Jakkam Mahipal Reddy ◽  
P. Venkata Bala Bramhanjaneyulu ◽  
C. Kalyan Sagar ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Path Analysis ◽  
Plant Height ◽  
Seed Yield ◽  
Block Design ◽  
Heritability Estimate ◽  
Selection Strategy ◽  
Plant Seed ◽  
Positive Direct ◽  
Number Of Seeds

The present investigation was undertaken with 21 genotypes of Chickpea, (including one check) during Rabi 2020-21 in a randomized block design with three replications at field experimentation centre of Department of Genetics and Plant Breeding. Sam Higginbottom University of Agriculture, Technology and Sciences. The data were recorded for 13 characters to study genetic variability, correlation and path analysis. Analysis of variance among 21 genotypes showed highly significant differences for all the characters indicated the presence of substantial amount of genetic variability. On the basis of mean performance, the highest seed yield was observed in genotype NBEG-1121 and RVS-5949. The estimates of GCV and PCV were moderate for plant height, number of primary branches. Low GCV and PCV was recorded for days to 50% flowering. The difference between PCV and GCV was very low for all 13 yield contributing characters. This indicates that the influence of environment factor was low on these characters. High heritability estimate was recorded for number of seeds per plant, number of secondary branches per plant. A high magnitude of genetic advance expressed as a percent of mean was observed in respect of number of seeds per plant, number of secondary branches per plant. Seed yield per plant exhibited positive and highly significant correlations with days to 50% Flowering, no of secondary branches at both genotypic and phenotypic level. The positive non-significant correlations of seed yield per plant were found with number of secondary branches and days to maturity. Negative non- significant correlation was being observed with the plant height, number of primary branches per plant and number of pods per plant. Path analysis at both genotypic and phenotypic level showed positive direct effects by days to 50% flowering, number of secondary branches per plant. The characters identified above as important components merit due to consideration in the formulation of effective selection strategy in chickpea for developing high yielding varieties.

scholarly journals Morphological characterization and association of various yield and yield contributing traits in Brassica genotypes

2019 ◽  
Vol 30 (1) ◽  
pp. 39-47
Author(s):  
T Aktar ◽  
M Nuruzzaman ◽  
MS Rana ◽  
MA Hossain ◽  
L Hassan
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Block Design ◽  
Correlation Coefficients ◽  
Morphological Characters ◽  
Morphological Characterization ◽  
Early Maturity ◽  
Breeding Programs ◽  
Randomized Complete Block Design ◽  
Number Of Seeds

An experiment was conducted to evaluate eighteen Brassica genotypes for various morphological characters and estimate association for yield and yield contributing traits. The experimented was executed following Randomized complete block design (RCBD) with three replications in the experimental farm of the department of Genetics and Plant Breeding, Bangladesh Agricultural University Mymensingh-2202. The nine yield attributing characters are studied in the experiment. The genotypes differed significantly for all the traits viz., days to 1st flowering, days to maturity, plant height, number of branches/plant, number of pod/plant, length of pod, number of seeds/pod, 1000-seed weight (g) and seed yield/plant (g).Considering the two most important traits like early maturity and yield /plant, BD-7114 performed best among the studied genotypes. Correlation coefficients among the characters were studied to determine the association between yield and it attributing components. A significant positive correlation was found between yield and its attributing characters namely with number of seeds/pod and 1000-seed weight. Path analysis revealed both direct and indirect effects on seed yield and revealed that number of seeds/pod had the highest direct effect on seed yield. The findings of the research could be exploited in future breeding programs for improving Brassica genotypes. Progressive Agriculture 30 (1): 39-47, 2019

scholarly journals Genetic variability and heritability estimates of morphological traits in F2 populations of rapeseed (Brassica carinata L.)

2020 ◽  
pp. 184-192
Keyword(s):  
Genetic Variability ◽  
Seed Yield ◽  
Morphological Traits ◽  
Block Design ◽  
Morphological Characters ◽  
Brassica Carinata ◽  
Genetic Advance ◽  
Parental Lines ◽  
The University ◽  
Pod Length

This study aimed to estimate genetic variability, heritability, and genetic advance for morphological characters in Brassica carinata L. A total of 22 genotypes comprised of six parental lines and their 16 bulk F2 populations were evaluated in a randomized complete block design with three replications at The University of Agriculture Peshawar during 2013-14. Data were recorded on days to 50% flowering, primary branches plant-1, main raceme length, pods on main raceme, pod length, number of seeds pod-1, 100-seed weight, and seed yield plant-1. Significant genetic differences were observed for all the traits studied. Among parental lines, C-93 performed better for primary branches plant-1 (11 branches), main raceme length (59.57 cm), pods on main raceme-1 (33 pods), and seeds pod-1 (15 seeds), C-95 for pod length (4.04 cm) and seed yield plant-1 (12.26 g). Among F2 populations, C-97 x C-88 performed better for main raceme length (73.20 cm), pods on main raceme (41 pods), C-88 x C-93 for pod length (4.95 cm), seeds pod-1 (18 seeds), and seed yield plant-1 (14.71 g). Moderate (30 < h2 ≤ 60) to high (h2 > 60) broad-sense heritability was observed for all morphological traits with maximum genetic advance, hence indicated that selection could be effective in the early generation for the improvements of these studied traits. Generally, cross combinations C-88 x C-93, C-97 x C-95, C-90 x C-93, and C-97 x C-88 performed better than their parental lines for morphological (primary branches plant-1, seeds pod-1, and seed yield plant-1) traits and could be exploited for varietal development in future brassica breeding programs.

Genetic variability, mean performance and analysis of variance in Linseed (Linum usitatissimum L.)

2019 ◽  
Vol 4 (01) ◽  
pp. 89-95
Author(s):  
Ravindra Kumar Kasana ◽  
P. K. Singh ◽  
Amit Tomar ◽  
Mahak Singh
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Analysis Of Variance ◽  
Seed Yield ◽  
Linum Usitatissimum ◽  
Harvest Index ◽  
Linum Usitatissimum L ◽  
Days To Maturity ◽  
Biological Yield ◽  
Number Of Seeds

The most promising lines showing highest seed yield with high mean performance for other yield contributing characters were identified as EC-22672, NDLS-164, NDLS-169 and NDLS-205-03-02. The genotypes exhibiting highest mean performance for different characters such as EC-22672 for seed yield per plant, SLS-50, NDL-204, Meera and NDLS-204 for early days to 50% flowering, NDLS-181 for early days to maturity, EC- 41494 for plant height, NDLS-77 for primary branches per plant, NDLS-169 for secondary branches per plant, EC-41404 for number of capsules per plant, EC-41494 for number of seeds per capsule, Shekhar for biological yield, EC-23269 for harvest index and SLS-48 for test weight.

Responses of soybean genotypes to intercropping with maize in the Southern Guinea Savanna, Nigeria

2004 ◽  
Vol 52 (2) ◽  
pp. 157-163
Author(s):  
C. U. Egbo ◽  
M. A. Adagba ◽  
D. K. Adedzwa
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Field Trials ◽  
Yield Response ◽  
Ecological Zone ◽  
Land Equivalent Ratio ◽  
Guinea Savanna ◽  
Days To Maturity ◽  
Soybean Genotypes ◽  
Location Interaction

Field trials were conducted in the wet seasons of 1997 and 1998 at Makurdi, Otukpo and Yandev in the Southern Guinea Savanna ecological zone of Nigeria to study the responses of ten soybean genotypes to intercropping. The experiment was laid out in a randomised complete block design. The genotypes TGX 1807-19F, NCRI-Soy2, Cameroon Late and TGX 1485-1D had the highest grain yield. All the Land Equivalent Ratio (LER) values were higher than unity, indicating that there is great advantage in intercropping maize with soybean. The yield of soybean was positively correlated with the days to 50% flowering, days to maturity, plant height, pods/plant and leaf area, indicating that an improvement in any of these traits will be reflected in an increase in seed yield. There was a significant genotype × yield × location interaction for all traits. This suggests that none of these factors acted independently. Similarly, the genotype × location interaction was more important than the genotype × year interaction for seed yield, indicating that the yield response of the ten soybean genotypes varied across locations rather than across years. Therefore, using more testing sites for evaluation may be more important than the number of years.

scholarly journals Effect of Iron on Yield of Corn (Zea mays L.) in Drought Stress

2019 ◽  
Vol 52 (1) ◽  
pp. 34-43
Author(s):  
K. Rafsanjani ◽  
A. Madani ◽  
F. Vazin
Keyword(s):  
Drought Stress ◽  
Seed Yield ◽  
Arid Regions ◽  
Block Design ◽  
Control Treatment ◽  
Yield Reduction ◽  
Pan Evaporation ◽  
Randomized Complete Block Design ◽  
Four Levels ◽  
Number Of Seeds

Abstract In hot and arid regions, drought stress is considered as one of the main reasons for yield reduction. To study the effect of drought stress, iron spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2013 on research Farm in Faizabad of Iran, as a split plot within randomized complete block design with three replications. The main plots with irrigation factor and four levels were considered: level A) 50 ml evaporation from pan evaporation; level B) 100 ml evaporation from pan evaporation; level C) 150 ml evaporation from pan evaporation and level D) 200 ml evaporation from pan evaporation. Sub plots were considered with iron spray in three levels, included level A) 80 g/ha, level B) 130 g/ha and level C) 180 g/ha. The drought stress reduced seed yield, the 1000-kernels weight (TKW), the number of seeds per ear, the number of seeds per row in ear, the number of rows per ear about 39%, 6%, 31%, 14% and 27% less than control treatment, respectively. Using iron, as compared with control treatment, causes the increase of 1000-kernels weight from 295 to 311 g and the increase of seed yield from 5188 to 7078. The results obtained from the present research showed that iron spray has fairly improved the effects caused by drought stress.

Sowing date affects yield components of canarygrass seed

2003 ◽  
Vol 83 (2) ◽  
pp. 357-362 ◽  
Author(s):  
J. L. Bodega ◽  
M. A. De Dios ◽  
M. M. Pereyra Iraola
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Dry Matter ◽  
Developmental Stages ◽  
Block Design ◽  
Sowing Date ◽  
Growing Seasons ◽  
Sowing Dates ◽  
Four Blocks ◽  
Number Of Seeds

Canarygrass (Phalaris canariensis L.) crops are sown from June to mid-September in the southeastern area of the province of Buenos Aires, Argentina. Sowing dates in this range result in different growing temperatures and photoperiods that affect the duration of developmental stages, biomass production, and seed yield and its components. For Argentina, there are no reported studies that address these effects. This study on the effects of sowing date was conducted during four growing seasons (1996–1999) at the Instituto Nacional de Tecnologí a Agropecuaria (INTA) Experimental Station at Balcarce, Argentina, using a population provided by Dr. Jaime Lloveras, University of Leyda, Spain. Different seeding dates were chosen from June to mid-September. The experiment was a randomized complete block design with four blocks. When the sowing date was delayed, total dry matter (DM) decreased. For early sowing dates seed yield was constant, but after 10 August it was reduced by 1.5% for each day of delay. Earlier sowing increased the duration of pre-anthesis development with greater uniformity in panicle size and the number of seeds. Seed yield was related lin early to the number of seeds and plant dry matter yield (DMY). The rate of progress from emergence to anthesis (1/days from emergence to anthesis) was proportional to the mean photoperiod. Under the environmental conditions in Balcarce, the accumulated required thermal units for anthesis was reduced when sowing was delayed from June to September. This reduction was related to the photoperiod and was estimated as –189.3 growing degree-days per hour of photoperiod increment. Key words: Canarygrass, seed yield, sowing date, yield components

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