Character Association and Path Coefficient Studies in Cucumber (Cucumis sativus L.): Experimental Investigation (original) (raw)
Related papers
2018
Thirty-two cucumber genotypes were evaluated at College of Horticulture, Anantharajupeta during Late Kharif 2016. The study was conducted to assess the nature and magnitude of association among yield and its contributing traits in cucumber. The experiment was laid out in RBD with three replications. In this study, genotypic correlation was higher than phenotypic correlations indicating the highly heritable nature of the traits. It was observed that the traits viz., number of fruits per plant, fruit weight, number of primary branches per plant, fruit length and vine length have exhibited highly significant positive association with fruit yield per plant. The genetic improvement of fruit yield thus can be obtained by direct selection of these yield components. The path coefficient analysis revealed that the number of fruits per plant, fruit weight, number of primary branches per plant, fruit length, 100 seed weight, number of seeds per fruit, days to last fruit harvest, fruit diameter and number of nodes per vine have direct positive phenotypic and genotypic effect on yield. Hence, direct selection for these traits can be done for improving fruit yield per plant.
The present study was conducted to assess the nature and magnitude of association among yield and its contributing traits in cucumber. The estimates of magnitude of phenotypic coefficient of variation (PCV) were higher than corresponding genotypic coefficient of variation (GCV) for all characters studied. High PCV and GCV value were obtained for the characters viz., number of fruit per plant, marketable yield per plant, nodal position of first female flower, internodal length, number of female flower per node, days to anthesis of first female flower, vine length and fruit weight. Correlation studies revealed that yield had significant positive association with number of fruits per plant, fruit girth, fruit weight and vine length and negative with nodal position of first female flower both at phenotypic and genotypic levels. Path coefficient analysis concluded that number of fruits per plant and fruit weight were the major traits contributing towards yield and selection based on these traits will be appropriate for increasing the yield of hybrid cucumber.
International Journal of Environment and Climate Change
This study included four genotypes of cucumber (IC257296, IC420405, GYNE-5, PUSA SANYOG) which were evaluated based on phenotypic traits when grown under two different soil zones of Doha (Qatar) and Meerut (India). Statistical analysis to estimate various genetic parameters like phenotypic and genotypic variance, phenotypic and genotypic coefficient of variation (PCV and GCV), broad sense heritability and genetic gain and principal component analysis (PCA) of genotypes was done in order to assess the magnitude of variability for various agro-metrical characters. In Indian soil zone, highest yield was observed in GYNE-5, while, in Qatar soil zone, highest yield was observed in PUSA SANYOG. The phenotypic coefficient of variation (PCV) was higher than its corresponding genotypic counterpart (GCV) for all characters studied. High broad-sense heritability was associated with all the traits in both zones except fruit length. Days to edible maturity, fruit length and fruit width showed lo...
Study on correlation and path analysis of F2 population of cucumber (Cucumis sativus L.)
Electronic Journal of Plant Breeding, 2021
An investigation was conducted to study the correlation and path analysis in 150 F 2 population of cross Dharwad x Belgaum Local in cucumber along with parents and check during Kharif, 2019 at ZAHRS, Shivamogga. The results revealed that the correlation coefficient for fruit yield per vine had highly significant (P<0.01) and positive with the number of fruits per vine (0.719), the number of nodes at which the first male flower appear (0.271) and the number of branches per vine (0.256). Fruit yield per vine also exhibited positive and significant (P<0.05) association with fruit length (0.201), number of leaves per vine (0.194), days to last harvest (0.181) and inter nodal length (0.158). The path analysis revealed that maximum direct effect of traits viz., number of fruits per vine, days to first female flower appearance, number of seeds per fruit, number of branches per vine, fruit diameter, fruit length, total soluble solids and total sugars on fruit yield. The superior transgressive segregants were identified which surpassed the limits of check hybrid 'Chitra' for a yield and quality attributing traits in the F 2 population.
International Journal of Environment and Climate Change
The experiment was carried out at Horticulture Research Field, Department of Horticulture, during the year 2022. This experiment was conducted to find out the best performing genotypes in relation of growth, yield and quality of cucumber. Seven cucumber genotypes such as IET, 2021/CUCUVAR-1,2,3,4,5,6,7 and three check variety namely NAZIA,LHC-1395 and MALINI were studied at SHUATS, Prayagraj in randomized block design with three replications in 4.5 x 3.0 m plot during summer season 2022 to find out the best performing genotype in related to growth, yield and fruit quality traits. NAZIA was found with the maximum fruit weight (247.67g), Fruit length (18.37cm), Fruit yield per plot (43.64 kg), Fruit yield (326.40 q/ha). NAZIA was found superior based on overall performance in term of growth, yield and quality and highest net return (3,33,718 Rs/ha). The highest cost benefit ratio (3.14) was found in cucumber NAZIA variety.
Journal of Pharmacognosy and Phytochemistry, 2019
Ten cucumber genotypes were evaluated at B.C.K.V. under naturally ventilated polyhouse during 2016-17. This study was conducted to examine relationship between important traits of cucumber and their direct and indirect effects on yield. The relationships between fruit yield and yield components in cucumber genotypes were investigated as well as how those relationships changed with selection for improved fruit yield. In this study, genotypic correlation was higher than phenotypic correlations indicating the highly heritable nature of the traits. Correlation studies revealed that intermodal length has exhibited highly significant positive association with fruit yield per plant followed by fruit length, fruit weight, number of fruits per plant and vine length. Direct selection based on these traits would improve yield. The path coefficient analysis revealed that the days to fifty percent flowering, number of fruits per vine, internodal length, fruit weight, fruit length, fruit diameter...
Notulae Scientia Biologicae
Sixteen exotic and indigenous cucumber genotypes (Cucumis sativus L.) were evaluated under early and late seasons planting. This was to characterize the cucumber genotypes based on their performance in the derived savannah of Southeast Nigeria agro-ecological zone and estimate character association and contribution towards total fruit yield per hectare. The vegetative traits, such as vine length, number of branches, number of leaves and leaf area were measured at 8 weeks after planting. The phonological traits measured were: days to flower initiation and days to 50% flowering. The reproductive traits like number of staminate flowers per plant, number of pistillate flowers per plant, fruit length, fruit girth, fruit weight per plant, number of fruits per plant, average fruit weight and total fruit yield per hectare were also recorded. Obtained data was subjected to analysis of variance in randomized complete block design and path analysis. The results showed a highly significant diff...
Indian Journal of Agricultural Sciences
India is endowed with enormous variability and genetic divergence for cucumber germplams throughout the country. However, several unique indigenous germplasm that could potentially enhance cucumber productivity and nutritional quality, have not yet been wiely utilized in crop improvement programmes due to lack of relevant information. So, there is a great need of screening cucumber germplasm to identify elite genotypes with improved quality and higher yield so that they may be utilized either directly as a selection or as a parent in hybridization programme. Cucumber (Cucumis sativus L.) is known to be highly preferred host for a number of diseases and pests. Among the diseases, downy mildew and virus diseases cause heavy losses particularly during hot and humid season. Downy mildew is one of the most important foliar diseases of cucurbits, causing significant yield losses not only in India but also in the USA, Europe, China and Israel (Thomas 1996). The downy mildew pathogen has a ...
Selection indices for fruit yield improvement in elite cucumber (Cucumis sativus L.) cultivars
Acta Horticulturae et Regiotecturae, 2021
Cucumber (Cucumis sativus L.) is an important vegetable crop, rich in vitamins and minerals and eaten fresh as a dessert. Its fruit yield is relatively low, though could be improved through knowledge of character association with it and selection of desirable materials for improvement programmes. Fifteen cultivars of Cucumber were evaluated at two locations (Abeokuta and Ibadan), South West, Nigeria in a randomized complete block design with three replicates in order to determine heritability, correlation, direct and indirect effects of characters on fruit yield. Data collected on agro-morphological characters were subjected to analysis of variance, estimates of heritability, correlation, and path analysis. Significant variations (p <0.05) were observed in the cultivars. High heritability estimates (>90%) was observed for fruit length at both locations. A significant phenotypic and genotypic correlation was observed between fruit yield and fruit weight. Number of days to 50% f...