scholarly journals Influence of defoliation during reproductive stage on seed yield in uniculm mungbean plants

2021 ◽  
Vol 6 (2) ◽  
pp. 11
Author(s):  
M. Monjurul Alam Mondal ◽  
M. Monjurul Alam Mondal
Keyword(s):  
Seed Yield ◽  
Dry Mass ◽  
Morphological Characters ◽  
Physiological Parameters ◽  
Reproductive Stage ◽  
Yield Attributes ◽  
Reproductive Characters ◽  
Pod Length ◽  
100 Seed Weight ◽  
Physiological Characters

An experiment was conducted at the pot yard of Bangladesh Institute of Nuclear Agriculture, Mymensingh during the period from February to May 2018 to investigate the effect of defoliations on morphological characters, yield attributes and yield of uniculm mungbean plant. The experiment comprised of nine levels of defoliation viz., control, 2, 3, 4, 5 leaves removal from base and 2, 3, 4 and 5 leaves removal from top out of 7 leaves during flowering start phase. The morpho-physiological characters such as plant height, stem diameter, leaf area and total dry mass plant-1 and number of racemes, reproductive characters such as rachis length and diameter, number of flowers plant-1 and reproductive efficiency, yield contributing characters such as number of pods plant-1, pod length, number of seeds pod-1, single pod and 100-seed weight and seed yield decreased with increasing defoliation both from base and top except basal 2 leaves defoliation. The above parameters increased over control in basal 2 leaves defoliation. The decrement due to defoliation was greater in  top  defoliated  plants  than  the corresponding  basal  defoliated  ones indicating upper leaves contributes more assimilate to the sink than the basal leaves. The highest morpho-physiological parameters, reproductive characters and yield contributing characters observed in basal 2 leaves defoliated plants which resulted the highest seed yield (5.75 g plant-1) followed by control (5.49 g plant-1). The lowest morpho-physiological parameters, reproductive and yield contributing characters recorded in top 5 defoliated plants and produced the lowest seed yield (1.21 g plant-1). These results suggest that uniculm mungbean plant tolerate basal 2 leaves loss in the canopy during reproductive stage.

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.

Source-sink optimization and morpho-physiological response of soybean [Glycine max] to detopping and mepiquat chloride application

2018 ◽  
Author(s):  
Manpreet Jaidka ◽  
J.S. Deol ◽  
Ramanjit Kaur ◽  
R. Sikka
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Dry Matter ◽  
Dry Matter Accumulation ◽  
Mepiquat Chloride ◽  
Area Index ◽  
Stover Yield ◽  
Source Sink ◽  
Pod Length ◽  
100 Seed Weight

Effect of detopping and mepiquat chloride on morphological, physiological and yield attributes of soybean cultivar ‘SL 544’ was studied. A two year investigation was conducted at Punjab Agricultural University, Ludhiana, during kharif seasons of 2014 and 2015. The experiment was laid-out in randomized complete block design (RCBD) with eight treatments viz. control, detopping (removal of 4-5 cm apical portion of main stem) at 50-55 days after sowing (DAS), mepiquat chloride @ 200 ppm (50-55 DAS), mepiquat chloride @ 200 ppm (50-55 + 65-70 DAS), mepiquat chloride 250 ppm (50-55 DAS), mepiquat chloride @ 250 ppm (50-55 + 65-70 DAS), mepiquat chloride @ 300 ppm (50-55 DAS) and mepiquat chloride @ 300 ppm (50-55 + 65-70 DAS) with four replications. Detopping had a non-significant effect on leaf area index, SPAD value, PAR interception, abscission of reproductive parts, seeds per pod, 100-seed weight, pod length and stover yield of soybean. It significantly decreased plant height, increased total dry matter accumulation/plant, number of flowers and pods/plant, pod setting percentage and seed yield over control during 2014 and 2015. At crop harvest, detopping developed optimized source-sink relationship by means of distribution of total dry matter between stem, foliage and pods by 20.4, 14.9 and 64.6 % during 2014 while 22.6, 20.1 and 57.4 % during 2015, respectively. Mepiquat chloride posed a non-significant effect on plant height, PAR interception, number of flowers/plant, number of seeds/pod, pod length and stover yield of soybean but it significantly decreased leaf area index, abscission of reproductive parts while increased the dry matter accumulation/plant, number of pods/plant, 100-seed weight and seed yield relative to control. At harvest, two foliar applications of mepiquat chloride @ 250 ppm resulted in optimized source-sink relationship by the distribution of total dry matter among stem, foliage and pods by 20.6, 10.9 and 68.5 % during 2014 while 19.5, 7.6 and 72.9 % during 2015, respectively. Occurrence of more rainfall during 2015 as compared to 2014 caused mepiquat chloride to hike seed yield as compared to detopping which is clearly witnessed by increase in pod dry weight per plant during 2015 than 2014. Conclusively, both detopping and mepiquat chloride resulted in enhancement in source-sink relationship and seed yield of soybean.

Genetic Analysis of Pigeonpea [Cajanus cajan (L.) Millsp.] Hybrids for Yield and Yield Attributes

2020 ◽  
Author(s):  
Sandeep S. ◽  
Sujatha K. ◽  
Manikya Minnie C. ◽  
Sudha Rani C.
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Agricultural Research ◽  
Test Weight ◽  
Research Station ◽  
High Genetic Diversity ◽  
Yield Attributes ◽  
Pod Length ◽  
Number Of Seeds ◽  
Number Of Branches

An experiment was carried-out with forty-eight hybrids of pigeonpea and two checks for nine characters at Agricultural Research Station, Tandur (Professor Jayashankar Telangana State Agricultural University). Analysis of variance revealed significant differences among the hybrids for all the nine characters studied. The results of genetic parameters revealed that, high genotypic (GCV) and phenotypic coefficients of variations (PCV) were observed for seed yield and number of pods per plant. Six characters viz., number of branches per plant, number of pods per plant, number of seeds per pod, pod length, test weight and seed yield exhibited high heritability estimates coupled with high genetic advance as per cent of mean which suggested that these traits were amenable for further improvement following simple selection methods. Character association revealed significant positive association of seed yield with plant height,number of branches per plant, number of pods per plant, number of seeds per pod and pod length. Based on divergence studies, the hybrids were grouped into nine clusters in Tocher’s method, cluster II (14 hybrids) was the largest followed by cluster I (13), cluster VI (9), cluster IV (6), cluster IX (4) and the remaining clusters were solitary (III, V, VII and VIII). Out of the nine characters studied, seed yield, days to 50% flowering, test weight and plant height contributed 85.62 per cent of the total divergence and these traits were found to be important factors for genetic differentiation in the hybrids. The overall results of the study revealed that, hybrids under cluster IV and VIII and cluster VII and VIII had maximum and minimum inter cluster distances respectively and possessing high genetic diversity for the characters viz. plant height, number of branches per plant, number of seeds per pod and yield.

Performance of Kidney bean (Phaseolus vulgaris L) under different sowing dates in sub-mountainous area of Punjab

2017 ◽  
Author(s):  
Amit Kaul ◽  
Charanjeet Kaur ◽  
Guriqbal Singh
Keyword(s):  
Seed Yield ◽  
Kidney Bean ◽  
Yield Potential ◽  
Mountainous Area ◽  
Research Station ◽  
Yield Attributes ◽  
Plant Seeds ◽  
Sowing Dates ◽  
Biological Yield ◽  
Pod Length

A field experiment was conducted at Regional Research Station (Punjab Agricultural University) Gurdaspur and Krishi Vigyan Kendra, Pathankot during the spring season of 2016, to determine the performance of kidney bean genotypes at different sowing dates under sub-mountainous conditions of Punjab. The two kidney bean genotypes i.e. red and speckled were evaluated for yield potential at two locations by adopting different sowing dates viz., 20th January, 1st February, 10th February and 20th February, 2016. The treatments were laid out in split plot design with four replications by keeping sowing dates in main plots and genotypes in sub plots. Among different dates of sowing, crop sown on 10th February showed superiority than other dates through higher emergence count per meter row length, plant height, branches per plant, pods per plant, seeds per pod, length of pod, biological yield and seed yield. The seed yield in February 10 sown crop was 66.4, 33.3 and 21.7 per cent higher than February 20, January 10 and February 1 sown crop, respectively at Gurdaspur. Similarly, at Pathankot, the percent increase in seed yield in February 10 sown crop was 36.0 and 7.2 per cent as compared to February 20 and February 1 sown crop, respectively. The kidney bean genotype speckled produced significantly higher yield attributes (seeds per pod, length of pod and 100 seed weight) and seed yield at both Gurdaspur and Pathankot (935.1 and 823.1 kg per ha, respectively) as compared to red genotype. Therefore, it can be concluded that to attain higher productivity of kidney beans, the speckled genotype could be used for cultivation by adopting February 10 as the optimum time of sowing in the sub-mountainous area of Punjab.

scholarly journals Genetic Variability and Diversity Analysis in Pod and Seed Characters of Some Neglected and Underutilized Legumes (NULs)

2019 ◽  
pp. 1-8
Author(s):  
J. O. Agbolade ◽  
T. P. Olakunle ◽  
K. M. Popoola ◽  
J. A. Idowu ◽  
A. I. Isiaka ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Principal Component ◽  
Morphological Characters ◽  
Morphological Data ◽  
Diversity Analysis ◽  
International Institute ◽  
Mean Values ◽  
The Mean ◽  
Pod Length ◽  
100 Seed Weight

In response to the paucity of information challenge on the neglected and underutilized legumes, this paper explored pods and seeds morphological data of the twenty-four accessions of these crops with a view to establishing the occurrence of genetic variability and diversity analysis among the studied taxa. Twenty-four accessions of neglected and underutilized legumes (NULs) obtained from International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria were assessed for genetic variability and diversity analysis through Pod and seed morphological characters. Each accession was planted into plot of 5 ridges of 5 meter long, spaced 1 meter apart and replicated three times at the teaching and research farm of the Federal University Oye Ekiti, Ekiti State, Nigeria. Descriptive statistics was employed to evaluate differences in the mean values of the accessions while discriminatory traits among accessions were identified by Principal Component Analysis (PCA). Similarities among the studied plants were assessed by cluster analysis. The first two principal component axes explained 72% of the total variation. Pod length, pod width and 100-seed weight were traits that contributed most of the variations in the legume accessions. There was a display of intra-species similarities and inter-specific genetic diversity among the studied accessions.

Effect of spacing and fertilizer level on yield attributes of Dhaincha (Sesbania aculeata)

2017 ◽  
Author(s):  
P. Rajesh ◽  
J. Sundersingh Rajapandian ◽  
K. Sharmili ◽  
S. Marimuthu ◽  
R. SureshKumar
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Tamil Nadu ◽  
Yield Attributes ◽  
Sesbania Aculeata ◽  
Agricultural College ◽  
Farm Unit ◽  
And Control ◽  
Pod Length ◽  
Number Of Seeds

A field experiment was conducted at Central Farm Unit situated in Agricultural College and Research Institute, Tamil Nadu Agricultural University, Killikulam during Rabi 2011-12 to evaluate the effect of spacing (120×30cm, 120×20 cm, 90×30 cm and 90×20 cm) and fertilizer levels (12.5:25:12.5, 18.75:37.5:18.75, 25:50:25, 31.25:62.5:31.25 kg N, P2O5, K2O/ha and control) on yield attributes of Dhaincha. The results revealed that spacing adopted with 120×30 cm significantly recorded higher number of pods/plant (53.7), pod length (19.94 cm), number of seeds/pod (28.52) and seed yield (585 kg/ha) of Dhaincha. In respect of different fertilizer levels, application NPK @ 31.25:62.5:31.25 kg/ha perceived higher yield attributes (number of pods/plant (48.8), pod length (17.98), number of seeds/ pod (29.28) and seed yield (609 kg/ha). Combination of spacing (120×30 cm) with fertilizer levels of 31.25:62.5:31.25 kg/ha significantly recorded higher seed yield of 705 kg/ha.

Assessment of genetic variability and inter-character association in the germplasm of cowpea (Vigna Unguiculata L. Walp) in hot arid climate

2018 ◽  
Author(s):  
Om Vir Singh ◽  
Neelam Shekhawat ◽  
Kartar Singh ◽  
R. Gowthami
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Seed Yield ◽  
Vigna Unguiculata ◽  
Seed Weight ◽  
Number Of Clusters ◽  
Positive Direct ◽  
Pod Length ◽  
100 Seed Weight ◽  
Number Of Branches

Studies on genetic variability, correlation and path coefficient analysis were carried out with 38 accessions of cowpea (Vigna unguiculata L. Walp.) evaluated in two environments i. e. kharif 2013 (E1) and kharif 2014 (E2) at Research field of NBPGR, Regional Station Jodhpur, India. Analysis of variance revealed significant differences among the genotypes for all the traits. Genotypic coefficient of variation was highest for number of clusters per plant followed by number of pods per plant in both the environments. High broad sense heritability along with high genetic advance for seed yield per plant, 100 seed weight, pod length, number of pods per plant, peduncle length, number of clusters per plant, number of branches per plant and plant height indicated the presence of additive gene effects for these traits in cowpea. In both the environments seed yield per plant was positively correlated with 100 seed weight, pod length, number of pods per plant, number of clusters per plant, number of branches per plant and plant height. The highest positive direct effect registered by number of branches per plant followed by number of clusters per plant in E1 environment and by number of branches per plant followed by plant height in E2 environment. The traits like 100 seed weight, plant height, number of pods per plant number of clusters per plant and number of branches per plant were identified as selection criteria for obtaining good parental lines in cowpea breeding programmes.

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 Variation in morpho-physiological characters and yield components of summer mungbean (Vigna radiata (L.) Wilczek) varieties

2018 ◽  
Vol 44 (3) ◽  
pp. 469-473
Author(s):  
MMA Mondal ◽  
MA Malek ◽  
AB Puteh
Keyword(s):  
Seed Yield ◽  
Vigna Radiata ◽  
Yield Components ◽  
Unit Area ◽  
The Other ◽  
Cropping Pattern ◽  
Yield Attributes ◽  
Area Basis ◽  
Days To Maturity ◽  
Physiological Characters

Twelve modern summer mungbean cultivars were evaluated to assess morpho-physiological characters, yield attributes and seed yield. Results revealed that high yielding cultivars, in general, showed superiority in morpho-physiological characters and seed yield/plant than the low yielding cultivars. However, in case of unit area basis, result revealed that seed yield/ha was greater in low yielding cultivars than the high yielding ones, yet they produced lower seed yield/plant compared to high yielding ones due to increase number of plants per unit area and these low yielding cultivars also matured 10 - 15 days earlier than high yielders. Among the cultivars, BINAmung-5 produced the highest seed yield/ha (1711 kg/ha) with lower HI (20.0%) and took longer days to maturity (69 days). On the other hand, BARImung-6 showed second highest seed yield (1697 kg/ha) with highest HI (32.6%) and matured earliest, took 60 days after sowing that might be fit the existing cropping pattern in Bangladesh.

scholarly journals Plant Density Effects on Yield and Yield Attributes of Two Soybean Varieties in Kharif-II Season of Bangladesh

2019 ◽  
Vol 4 (3) ◽  
Keyword(s):  
Seed Yield ◽  
Dry Matter ◽  
Plant Density ◽  
Planting Pattern ◽  
Yield Attributes ◽  
Stover Yield ◽  
Plant Densities ◽  
100 Seed Weight ◽  
Number Of Branches ◽  
Plot Design

The present study was undertaken with a view to study the effect of plant density on yield and yield attributes of two soybean varieties in kharif–II season. The experiment was conducted in kharif-II season 2012 at mymensingh with two soybean varieties, namely PB-1 (Shohag) and G-2 (Bangladesh soybean-4) and six plant densities, viz; 20, 40, 60, 80, 100 and 120 plants m-2 established using an equidistant (square) planting pattern of 22.4cm x 22.4 cm, 15.8 cm x 15.8 cm, 12.9 cm x12.9 cm, 11.2 cm x 11.2 cm, 10 cm x 10 cm and 9.1 cm 9.1 cm, respectively. The experiment was laid out in a split-plot design with varieties in main-plots and plant densities in sub-plots. The treatments were replicated three times. Increased plant density increased plant height, number of nodes plant-1, total dry matter, seed yield (1.02 t ha-1) and Stover yield (1.15 t ha-1) 80 to 100 plants m-2 and then decreased with increased plant density. Again increased plant density linearly decreased in number of branches plant-1, fertile pods plant-1, non-fertile pods plant-1, number of seeds plant-1, seed yield plant-1 and 100- seed weight up to 120 plants m-2 depending on variety and season. The study concludes that the highest yield of soybean in kharif –II season could be obtained from varietyPB-1 with a plant density of 100 plants m-2 and 80 plants m-2in G-2.

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