scholarly journals Correlation and path coefficient analysis in Jatropha curcas L.

Genetika ◽  
2015 ◽  
Vol 47 (1) ◽  
pp. 63-70
Author(s):  
Ramanuj Maurya ◽  
Umesh Kumar ◽  
Ratna Katiyar ◽  
Yadav Kumar
Keyword(s):  
Seed Weight ◽  
Oil Content ◽  
Male Flower ◽  
Female Flower ◽  
Fruit Weight ◽  
Seed Plant ◽  
Plant Seed ◽  
Flower Plant ◽  
Seed Width ◽  
Number Of Seeds

Correlation and path analysis on 80 diverse accessions of J. curcas showed that seed weight/plant was significantly and positively associated with female flower/plant, male flower/plant, number of flower/plant, number of seed/plant, fruit weight/plant, seed width and negatively associated with oil content. Oil content was negatively and significantly correlated with all the traits studied with strong negative association with female flower/plant followed by male flower/plant, number of seed/plant, fruit weight/plant and seed weight/plant. Male flower per plant had the maximum direct effect on seed yield, followed by number of seeds/plant, seed width, number of fruits/plant and oil content. The results of the present investigations suggests that selection in J. curcas based on male flower/plant, number of fruit/plant, number of seeds/plant, seed width and oil content would be advantageous to achieve the desirable goals. The indirect selection through other component traits would also be rewarding to improve the seed yield.

scholarly journals Studies on genetic variability and interrelationship in bottle gourd [Lagenaria siceraria (Mol.) Standl]

2018 ◽  
Vol 8 (1) ◽  
pp. 14-17
Author(s):  
S Sultana ◽  
MS Rahman ◽  
J Ferdous ◽  
F Ahamed ◽  
AK Chowdhury
Keyword(s):  
Genetic Variability ◽  
Seed Weight ◽  
Male Flower ◽  
Female Flower ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Bottle Gourd ◽  
Lagenaria Siceraria ◽  
Fruit Length ◽  
100 Seed Weight

The genetic parameters were studied to elucidate the genetic variability, correlation and path co-efficient analysis in thirty-nine genotypes of bottle gourd [Lagenaria siceraria (Mol.) Standl] in randomized complete block design with three replications. Observations were recorded for eleven quantitative characters viz., days to first male flower open, days to first female flower open, node number of first female flower, braches plant-1, days to harvest, number of fruits plant-1, fruit weight, fruit length, fruit girth, 100 seed weight and yield ton ha-1. The analysis of variance showed highly significant differences for all the characters studied indicating considerable variability among the genotypes. The highest GCV (35.57%) and PCV (35.62%) were observed for fruit length. The differences between GCV and PCV were high for fruit number plant-1 and days to first male flower open indicating environmental influences. High heritability associates with high estimates of genetic advance in percent of mean were noted for length of fruit, yield, girth of fruit and number of fruits plant-1. It indicated presence of additive gene effect and selection for these traits would be effective. Yield were positively and significantly correlated with fruit weight, 100 seed weight, branch plant-1 and number of fruits plant-1 .Negative associations of yield were noted with days to first male and female flower open, days to harvest and length of fruit. Path analysis revealed that fruits plant-1 (0.93) and weight of fruit (0.467) had very high positive effect on fruit yield ton ha-1 .Int. J. Agril. Res. Innov. & Tech. 8 (1): 14-17, June, 2018

VARIATION AMONG BRITISH COLUMBIA AND NORTHERN ALBERTA POPULATIONS OF RASPBERRIES, RUBUS IDAEUS SUBSPP. STRIGOSUS MICHX.

1972 ◽  
Vol 52 (6) ◽  
pp. 1067-1072 ◽  
Author(s):  
M. C. J. VAN ADRICHEM
Keyword(s):  
British Columbia ◽  
Seed Weight ◽  
Fruit Weight ◽  
Winter Hardiness ◽  
Rubus Idaeus ◽  
Specific Character ◽  
Positive Correlation ◽  
Total Seed ◽  
Northern Alberta ◽  
Number Of Seeds

Several population samples of Rubus idaeus subspp. strigosus Michx. (raspberries) were collected in British Columbia and northern Alberta and a number of characters were studied and compared with the cultivar Trent. Significant differences between populations were found for cane length, number of buds per cane, percentage of buds growing, number of inflorescences and flowers per bud, fruit and seed weight. There was a positive correlation between the total seed weight and the number of seeds, and between the total seed and fruit weight. No distinct types could be established based on location or elevation. None of the populations showed significantly better winter hardiness than the cultivar Trent, and although some had a specific character that was superior, none was found to have overall superiority.

scholarly journals Morphological characterization and genetic diversity in lentil (Lens culinaris medikus ssp. Culinaris) germplasm

2014 ◽  
Vol 4 (1) ◽  
pp. 70-76
Author(s):  
KU Ahamed ◽  
B Akhter ◽  
MR Islam ◽  
MR Humaun ◽  
MJ Alam
Keyword(s):  
Seed Weight ◽  
Female Flower ◽  
Morphological Characterization ◽  
Flower Initiation ◽  
Mean Values ◽  
Maximum Value ◽  
Cluster Distance ◽  
The Mean ◽  
100 Seed Weight ◽  
Number Of Seeds

Genetic divergence of 110 lentil germplasm with checks was assessed based on morphological traits using multivariate analysis. Mahalanobis generalized distance (D2) analysis was used to group the lentil genotypes. Significant variations among lentil genotypes were observed in respect of days to 1st flowering, days to 50% flowering, days to maturity, plant height, and number of pods per peduncle, number of pods per plant, number of seeds per plant, 100 seed weight and yield per plant. Considering the mean values, the germplasm were grouped into ten clusters. The highest number of genotypes (17) was in cluster X and lowest (5) both in cluster II and IV. Cluster IV had the highest cluster mean for number of pods per plant (297.08), number of seeds per plant (594.16), 100 seed weight (1.44 g) and yield per plant (8.53 g). Among them, the highest inter-cluster distance was obtained between the cluster IV and I (24.61) followed by IV and III (22.33), while the lowest was between IX and II (1.63). The maximum value of inter-cluster distance indicated that genotypes belonging to cluster IV were far diverged from those of cluster I. The first female flower initiation was earlier in BD-3812 (49 days) in cluster I and cluster IV had highest grain yield per plant (8.53). BD-3807 produced significant maximum number of pods per plant (298.40) in cluster IV. DOI: http://dx.doi.org/10.3329/ijarit.v4i1.21095 Int. J. Agril. Res. Innov. & Tech. 4 (1): 70-76, June, 2014

scholarly journals Genetic divergence in bitter gourd (Momordica charntia L.)

2013 ◽  
Vol 38 (2) ◽  
pp. 125-134
Author(s):  
BC Kundu ◽  
MM Hossain ◽  
MA Khaleque Mian ◽  
IH Mian
Keyword(s):  
Genetic Divergence ◽  
Seed Weight ◽  
Male Flower ◽  
Bitter Gourd ◽  
Flower Opening ◽  
Green Fruit ◽  
Fruit Maturity ◽  
Cluster Distance ◽  
Geographical Position ◽  
Seed Width

The genetic divergence among 36 genotypes of bitter gourd (Momordica charantia L.) was determined through PCA, PCO, CVA, Cluster analysis (CLSA) and Mohalanobis’s D2 analysis. Through multivariate analysis based on 22 characters 36 genotypes were grouped into six distant clusters. Cluster VI includes maximum genotypes (12) followed by cluster I (6) and cluster II (6). Cluster V, cluster III and cluster I comprised 5, 4 and 3 genotypes respectively. The inter-cluster distances were higher than the intra-cluster distances. The inter-cluster distance was maximum between cluster III and IV (28.71) followed by the distance between cluster I and cluster IV (23.61). The intra-cluster distances in all the 6 clusters were more or less low indicating the closeness of genotypes within the same cluster. The highest intra-cluster distance was observed for cluster III (1.84) followed by the cluster I (1.38). The genotypes within the same clusters were collected from different places and genotypes collected in the same place fall in different cluster, which indicated that genetic divergence are not dependent on its geographical position from where the genotypes were collected. The genetic diversity of 36 genotypes was also assessed through PCA. The first three components accounted for 60.04% of the total variation. Days to first male flower opening, number of primary branches per vine, fruit yield per vine, days to green fruit maturity, seed weight per fruit mature seed width had the highest contribution towards the divergence. Cluster diagram exhibited that the genotypes include in the cluster III were far diverse from the genotypes of cluster IV while the genotypes belonging to the cluster II and VI were least diversed. DOI: http://dx.doi.org/10.3329/jasbs.v38i2.15593 J. Asiat. Soc. Bangladesh, Sci. 38(2): 125-134, December 2012 J. Asiat. Soc. Bangladesh, Sci. 38(2): 125-134, December 2012

scholarly journals Heterosis and gene action in okra

2008 ◽  
Vol 32 (3) ◽  
pp. 421-432 ◽  
Author(s):  
Nandan Mehta ◽  
BS Asati ◽  
SR Mamidwar
Keyword(s):  
Plant Height ◽  
Seed Weight ◽  
Gene Action ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Additive Gene Action ◽  
Fruit Length ◽  
Additive Gene ◽  
100 Seed Weight ◽  
Number Of Seeds

Forty two hybrids generated by crossing three testers with fourteen lines were studied along with parents for studying heterosis and gene action for days to first flowering, days to 50 percent flowering, fruit weight, fruit length, plant height, number of seeds per fruit, 100-seed weight and fruit yield per plant during rainy season and summer season of 2002-03 at Department of Horticulture, Indira Gandhi Agricultural University, Raipur, Chhattisgarh, India. The most heterotic combinations were VRO-6 x Parbhani Kranti, VRO-4 x Parbhani Kranti, Daftari-1 x Arka Abhaya and Kaveri Selection x Ankur Abhaya for fruit yield per ptant. The sca variances for days to fruit flower, days to 50 percent flowering, fruit weight, fruit length, plant height, number of seeds per fruit and 100-seed weight were higher than so gca variance so there is a preponderance of non-additive gene action. The gca variances was greater than sca variances for fruit yield per plant indicating preponderance of additive gene action for this trait. Overall, the results discussed above are quite indicative of the fact that hybrid okra has great potentialities of maximizing fruit yield in Chhattisgarh plains.DOI: http://dx.doi.org/10.3329/bjar.v32i3.544Bangladesh J. Agril. Res. 32(3) : 421-432, September 2007

scholarly journals Correlation Analysis Between Yield Component Traits and Yield of Watermelon Genotypes (Citrullus lanatus)

2020 ◽  
Vol 4 (1) ◽  
pp. 41-48
Author(s):  
Prinsip Trisna Mulyani ◽  
Budi Waluyo
Keyword(s):  
Genetic Correlation ◽  
Yield Components ◽  
Seed Weight ◽  
Citrullus Lanatus ◽  
Fruit Weight ◽  
Stem Length ◽  
Phenotype Correlation ◽  
Fruit Length ◽  
Number Of Seeds ◽  
Fruit Diameter

Watermelon [Citrullus lanatus (Thunberg) Matsum & Nakai] is a plant that is widely cultivated and contains important nutritional compounds such as citrulline, arginine, and glutathione. In the last few years, the consumption of vegetables and fruits in Indonesia has tended to increase but cannot be fulfilled by domestic production. Yields are influenced by the character of yield components. This research aims to study the relationship between the character of the yield components on the yield in the watermelon. The study was arranged in augmented design and planting material are 75 watermelons genotypes and 3  checks varieties. The results showed that there are some characters of yield components that correlated with yields. The characters of yield components that have positive genetic correlation and positive phenotype correlation with fruit weight are stem length, number of branches, fruit stalk length,  fruit length, fruit diameter, thickness of pericarp, number of seeds per plant, and weight of seeds per plant. The yield components characters that have a negative genetic correlation with fruit weight are day to flowering. The characters of yield components that have positive genetic and phenotype correlation with seed weight per plant are fruit weight, stem length, fruit length, fruit diameter, number of seeds per plant, seed length, and seed width. The Characters of yield components that have a negative genetic correlation with seed weight are day to flowering and the first female flower emerges. The characters of yield components that correlate with the yield are used as selection markers for indirect selection.

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.

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.

Mean performance, range and analysis of variance in Indian mustard (Brassica juncea L. Czern and Coss)

2019 ◽  
Vol 4 (01) ◽  
pp. 34-40
Author(s):  
Amit Tomar ◽  
Manish Kumar Srivastava ◽  
Mahak Singh
Keyword(s):  
Analysis Of Variance ◽  
Seed Yield ◽  
Seed Weight ◽  
Oil Content ◽  
Indian Mustard ◽  
Flower Number ◽  
Mean Values ◽  
Days To Maturity ◽  
The Mean ◽  
Number Of Seeds

The analysis of variance based on mean values of 10 characters namely, day to flower, number of primary branches per plant, number of secondary branches per plant, days to maturity, plant height (cm), number of siliquae per plant, number of seeds per siliquae, 1000-seed weight (g), oil content (%) and seed yield per plant (g) were studied for testing the significance of differences among the treatments. The mean sum of squares for all the characters. Highly significant differences were recorded among all the treatments for all the 10 characters except number of primary branches per plant, number of secondary branches per plant, days to maturity and oil content.

scholarly journals Genetic variability, heritability and genetic advance in bottle gourd [Lagenaria siceraria (molina) standl.] genotypes

2021 ◽  
Vol 23 (2) ◽  
pp. 200-203
Author(s):  
M VENKATRAMAN ◽  
Keyword(s):  
Genetic Variability ◽  
Sex Ratio ◽  
Block Design ◽  
Male Flower ◽  
Female Flower ◽  
Fruit Weight ◽  
Bottle Gourd ◽  
Genetic Advance ◽  
Lagenaria Siceraria ◽  
Randomized Block Design

An experiment was carried out to analyze genetic variability for yield and its contributing characters in 35 bottle gourd genotypes in randomized block design with three replications to assess the nature and magnitude of association among yield and its contributing traits in bottle gourd (Lagenaria siceraria). Results indicated that PCV and GCV were high (more than 20%), sex ratio for PCV was 34.19 % and GCV registered as 24.79 per cent, respectively. Moderate PCV (14.28,16.10) and GCV (13.78,13.43) were recorded for vine length and primary branches, respectively. The high genetic advance as per cent of mean along with high heritability was obtained for vine length (0.93%), fruit length (0.87%), fruit width (0.76%), primary branches (0.69%), fruits per vine (0.59 %), sex ratio (0.52%), fruit yield (0.44%), days to first female flower anthesis (0.42%), node at first female flower appears (0.41%), days to first harvest (0.40%), fruit thickness (0.37%), days to first male flower anthesis (0.37%), fruit weight (0.35%) and node at first male flower appears (0.20%).

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