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

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%).

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

Heterosis in bottle gourd Lagenaria siceraria (Mol.) Standl.

2016 ◽  
Author(s):  
Mahesh B. Ghuge ◽  
M. M. Syamal ◽  
Shraddha Karcho
Keyword(s):  
Fruit Weight ◽  
Fruit Yield ◽  
Bottle Gourd ◽  
F1 Hybrids ◽  
Yield Traits ◽  
Lagenaria Siceraria ◽  
Fruit Length ◽  
Standard Heterosis ◽  
Fruit Harvest

Studies were carried out to estimate heterosis for yield and yield traits in bottle gourd. Heterosis for fruit yield per vine ranged from -35.2 to 23.9 per cent over mid parent and -17.6 to 68.5 per cent over standard check Samrat. For number of fruits per plant and average fruit weight was ranged from -28.2 to17.9 per cent and -22.1 to 22.4 per cent over mid parent and -17.6 to 53.3 per cent and -11.7 to 44.6 per cent over standard check Samrat, respectively. Regarding fruit length the heterosis ranged from -15.1 to 19.9 over mid parent while standard heterosis ranged from -7.05 to 48.9. Heterosis for days to first fruit harvest ranged from -0.53 to -12.4 and -0.55 to -14.7 over mid parent and standard check respectively. It was important to note that six F1 hybrids viz., Samrat X Aditi followed by Aditi X TC 092372, IC 093236 X TC 092372, Samrat X TC 092372, Samrat X IC 093236 and Aditi X PSPL produced significantly higher yield than the standard check Samrat.

scholarly journals Genetic variability, correlation and path analysis in bottle gourd (Lagenaria siceraria (Mol. Standl.) germplasm

2018 ◽  
Vol 13 (2) ◽  
pp. 131-136
Author(s):  
B Varalakshmi ◽  
M Pitchaimuthu ◽  
E Sreenivas Rao
Keyword(s):  
Coefficient Of Variation ◽  
Female Flower ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Bottle Gourd ◽  
Genetic Advance ◽  
Gene Effects ◽  
Fruit Length ◽  
Fruit Number ◽  
Wide Range

The present investigation was conducted to determine the variability, heritability, genetic advance and correlation of fruit yield and ten different yield contributing characters in bottle gourd. Wide range of variation was observed for most of the characters like fruit yield/vine, fruit number/vine, fruit weight, fruit yield/ha and node number for first female flower appearance. Phenotypic coefficient of variation was higher than genotypic coefficient of variation for all the traits studied, indicating environmental influence on expression of these characters. However, high heritability (broad sense) along with high genetic advance was recorded by vinelength, branch number, fruit length, fruit width, fruit yield/vine and yield/ha indicating the presence of additive gene effects, hence selection can be employed for the improvement of these parameters. Fruit yield/ ha was significantly and positively associated with fruit number/vine and fruit yield/vine both at genotypic as well as phenotypic levels. Fruit number had maximum direct effect (0.812) on fruit yield/ha followed by fruit weight (0.407), fruit length (0.339), fruit width (0.310), fruit yield/vine (0.249), days taken for first female flower appearance (0.224) and vine length (0.173). Therefore for the yield improvement in bottle gourd, emphasismay be given for indirect selection through fruit parameters like fruit weight, fruit length, fruit number and fruit yield/vine.

Genetic diversity among landraces of cucumber (Cucumis sativus L.) from north east India

2019 ◽  
Vol 48 (3) ◽  
pp. 481-488
Author(s):  
Dhiman Chakraborty ◽  
Mukul Kumar ◽  
Lobsang Wangchu ◽  
Siddhartha Singh ◽  
AK Pandey
Keyword(s):  
Genetic Diversity ◽  
Seed Weight ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Eastern Region ◽  
Diversity Pattern ◽  
North East ◽  
100 Seed Weight ◽  
Number Of Branches

Twenty eight diverse landraces collected from various parts of North Eastern Region of India along with two checks were evaluated to study the diversity pattern among the genotypes on 17 morphological traits. High magnitude of genotypic coefficients of variation (GCV) and heritability coupled with high genetic gain were observed for average fruit weight, fruit yield per plant, number of fruits per plant, fruit length, number of branches per plant, number of seeds per fruit and 100 seed weight. However, these parameters were moderate for early fruit harvest and total soluble solids (TSS). Thirty genotypes were grouped into 6 clusters which showed intercluster D2 values ranging between 115.81 and 670.08. Grouping of genotypes of same location in different clusters indicated that the geographical diversity may not necessarily be related to genetic diversity. The cumulative contribution (82.28%) of fruit weight, 100-seed weight, number of branches per plant and fruit yield per plant to the total divergence indicate the importance of these traits in choice of parents for hybridization programme in cucumber.

Genotypes performance and genetic variability studies in Hot Chilli (Capsicum annum L.)

2015 ◽  
Author(s):  
Satish Kadwey ◽  
Ashwini Dadiga ◽  
Sunil Prajapati
Keyword(s):  
Genetic Variability ◽  
Seed Yield ◽  
Crop Improvement ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Genetic Advance ◽  
Fruit Length ◽  
Capsicum Annum ◽  
Dry Fruit ◽  
Very High

Twenty five diverse chilli (Capsicum annuum L.) genotypes were evaluated in a field study to assess genetic variability, heritability and genetic advance. The highest PCV were recorded for number of fruit plant-1 (42.0), dry fruit yield plant-1 (30.34), seed yield plant-1 (28.94), fruit weight of dry chilli (23.38), number of primary branches plant-1 at 30 DAT (21.88) and fruit width (21.0). While, highest GCV was observed for number of fruit plant-1 (41.77), dry fruit yield plant-1 (29.61), seed yield plant-1 (27.67) and fruit weight of dry chilli (21.67), The value of heritability (h2bs) was found to be very high for fruit yield plant-1 (97.91), seed yield plant-1 (96.82), dry fruit yield plant-1 (95.24), days to first picking (94.88), fruit length (93.30), fruit weight of green chilli (93.26), fruit yield plot-1(92.91), fruit yield ha-1 (92.90) and fruit width (92.02). The highest estimates of genetic advance as percentage of mean was recorded for number of fruit plant-1 (45.59), fruit weight of dry chilli (41.38), fruit width (39.82), dry fruit yield plant-1 (39.52), seed yield plant-1 (38.70), fruit weight of green chilli (38.10), fruit yield plant-1 (37.33) and fruit length (36.78) were observed for these all the above characters, imply the potential for crop improvement in chilli through selection.

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 Evaluation of F1 Hybrids of Bottle Gourd (Lagenaria siceraria Mol. Stand) for Yield Attributes

2021 ◽  
Vol 9 (3) ◽  
pp. 54-59
Author(s):  
Atul Sharma ◽  
Keyword(s):  
Fruit Size ◽  
Female Flower ◽  
Fruit Weight ◽  
Bottle Gourd ◽  
F1 Hybrids ◽  
Hybrid Vigour ◽  
Lagenaria Siceraria ◽  
Node Number ◽  
Yield Attributes ◽  
Diallel Mating Design

An investigation was carried out to study the performance of 28 hybrids of bottle gourd (Lagenaria siceraria mol. stand) through diallel mating design excluding reciprocals. Observations were recorded on the traits, viz., number of primary branches per vine, days to 50% flowering, node number at which first female flower appears, days to initiation of first female flower, number of fruits per vine, days to first fruit harvest, fruit weight, fruit size, hundred seed weight, flesh thickness, vine length and fruit yield per vine besides quality traits such as moisture content and TSS content in the fruit. Among the 28 hybrids of bottle gourd studied, thecross ‘PSPL X Pusa Naveen excelled in yield per vine, followed by the crosses ‘DBG-5XPusa Naveen. Thus, first generation hybrids can be well-utilized for exploiting hybrid vigour to achieve improved quality.

Estimates of genetic variability, heritability and genetic advance for yield and yield component traits in ash gourd [Benincasa hispida (Cogn.)] genotypes

2017 ◽  
Vol 37 (04) ◽  
Author(s):  
Lovely B. ◽  
Vijayaraghava Kumar
Keyword(s):  
Genetic Variability ◽  
Gene Action ◽  
Fruit Weight ◽  
Yield Component ◽  
Fruit Yield ◽  
Dry Matter Content ◽  
Genetic Advance ◽  
Fruit Length ◽  
High Heritability ◽  
Ash Gourd

Twenty-five diverse genotypes of ash gourd were evaluated to estimate variability, heritability and genetic advance over mean for fruit yield and yield component characters. Analysis of variance revealed significant differences for almost all the characters. High genotypic coefficient of variation was observed for fruits per plant, mean fruit weight, fruit yield per plant, fruit length, fruit girth and flesh thickness, which indicate that there exists high genetic variability and better scope for improvement of these characters through selection. The characters node to male flower, vine length, fruits per plant, mean fruit weight, fruit yield per plant, fruit length, fruit girth, flesh thickness, 100-seed weight, seeds per fruit and dry matter content had high heritability coupled with high genetic advance suggesting improvement of those characters through selection due to additive gene action. In the present study high heritability and low genetic advance was noted for days to first male and female flower indicating dominant gene action.

scholarly journals Effect of growth regulators and stages of spray on seed yield and seed quality parameters of ridge gourd [Luffa acutangula (Roxb) L.]

2016 ◽  
Vol 8 (3) ◽  
pp. 1551-1555
Author(s):  
Sondarva Jyoti ◽  
N. B. Patel ◽  
J. B. Patel
Keyword(s):  
Seed Yield ◽  
Growth Regulators ◽  
Seed Weight ◽  
Seed Quality ◽  
Quality Parameters ◽  
Fruit Yield ◽  
Fruit Length ◽  
Vigour Index ◽  
Luffa Acutangula ◽  
100 Seed Weight

The experiment was undertaken to study the influence of different growth regulators on seed yield and seed quality parameters in ridge gourd [Luffa acutangula (Roxb) L.]. There were 30 treatment combinations comprising of two factors; plant growth stage as main plot treatment, and plant growth regulators as sub plot treatment embedded in a split plot design. The results indicated that significantly the highest average fruit weight (32.76 g), matured fruit yield per plant (65.84 g), 100 seed weight (13.41 g) and seed yield per plant (12.79 g) was recorded with spraying of 500 ppm ethereal, whereas significantly the maximum fruit length (20.89 cm) and fruit diameter (5.15 cm) with 25 ppm GA3. Significantly the highest seed germination (69.22 %) was recorded with spraying of 250 ppm ethereal, while application of NAA at 50 ppm recorded significantly the highest vigour index I (2737.85) and vigour index II (5029.33). Spraying of PGR at two to four leaf stage recorded the higher fruit length (20.19 cm), fruit yield per plant (47.49 g), 100 seed weight (13.18 g) and seed yield per plant (11.98 g) as well as highest germination (60.90%), vigour index I (2460.80) and vigour index II (4377.66). It is concluded that spraying of 500 ppm etherel at two to four leaf stage increased the higher fruit length, fruit yield per plant, 100 seed weight and seed yield per plant as well as highest germination, vigour index I and vigour index II.

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