Yield traits of cucumber

The present investigation entitled, "Genetic evaluation for fruit yield and related traits in parthenocarpic cucumber" was undertaken at „Vegetable Research Farm‟ of the Department of Vegetable Science and Floriculture, CSKHPKV Palampur with the objectives to estimate nature of variation and to identify the most promising genotypes of parthenocarpic cucumber.

17p chauchaungayxua10 19-03-2021 12 2   Download

Considering all these aspects, an experiment entitled “Effect of rootstocks and grafting techniques on horticultural traits and gummy stem blight in parthenocarpic cucumber” was undertaken with the following objectives: (i) In vitro screening of different rootstocks for gummy stem blight, and to study the effect of rootstocks and grafting techniques on yield and quality attributes in cucumber.

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The present investigation was under taken with the objectives to estimate genetic variability, heritability and genetic advance for yield and yield contributing components of cucumber. The experimental materials for this investigation were fourteen genotypes of cucumber consisting of parthenocarpic, gynoecious and monecious germplasms crossed in line × tester mating design produced thirty three hybrids (F1). Thirty three F1 crosses along with their parents were evaluated in two environments viz.

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The present study was carried out during Late kharif, 2016 at College of Horticulture, Anantharajupeta. The experiment was conducted with an objective to identify divergent genotypes to be used as donor parents in crop improvement. Thirty-two genotypes along with two checks were evaluated in a randomized block design with three replications and the data on 25 yield and yield attributing traits were recorded. The analysis of variance revealed significant differences among all genotypes indicating the presence of sufficient amount of variability for the characters studied.

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The present experiment was carried out to assess the degree of association of yield with its components, because yield is not an independent character and it is resultant of interaction of a number of component characters. Correlation provides information on the nature and extent of association between characters in a population. Most of the traits have shown significant correlation as revealed by the association study.

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Parthenocarpy is an important trait for yield and quality in many plants. But due to its complex interactions with genetic and physiological factors, it has not been adequately understood and applied to breeding and production.

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Generation mean analysis in cucumber is carried out to study gene effects for fruit yield and its component traits (number of branches per vine, sex ratio, number of fruits per vine, fruit length, fruit width, average fruit weight and fruit yield per vine) using three crosses viz., ACS12-29 x Belgaum Local, ACS12-31 x B19, ACS12-51 x Poinsett, F1, F2, BC1 and BC2 generation in Rabi season at Kittur Rani Channamma College of Horticulture, Arabhavi, Belagavi district (Karnataka), India.

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With the objective to find the association of different seed characters with fruit yield in cucumber, an experiment was conducted with 30 indigenous genotypes, collected from five different states, at the Experimental Farm of the Department of Vegetable Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan during Kharif, 2015. Results revealed that yield per plant had positive and significant association with all the seed characters under study viz., seed length, seed breadth, hundred seed weight, germination percentage, seed vigour index-I and seed vigour index-II.

5p kethamoi4 16-04-2020 10 1   Download

The present experiment was carried out at vegetable research center, G B Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during the July-October, 2014 and February-June, 2015 in randomized block design with three replications to assess genetic variability, heritability and genetic advance as percent of mean for various yield and its contributing traits.

10p trinhthamhodang1212 06-04-2020 28 2   Download

A field experiment was conducted to investigate the effect of different levels of GA3 (10, 20 & 30 ppm), NAA (50, 100 & 150 ppm) and their combined dose (GA3 20 ppm + NAA 100 ppm) on yield and yield traits of cucumber at experimental plot of Horticultural Research Centre, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut during the summer season of 2014-15. The experiment was laid out in Randomized Block Design with three replications.

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The present investigation were carried out understand heterosis and gene action for yield and quality traits in cucumber genotypes. The materials consist of three lines and four testers and the resultant 12 hybrids through Line x Tester mating design. The present estimation of heterosis identified that L2XT2 (Koradacherry local x Orathanadu local) being the superior hybrid for most of the traits by expressing higher significance Relative Heterosis, Heterobeltiosis and Standard Heterosis.

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Fifteen gynoecious parthenocarpic hybrids hybrids/lines of cucumber (Cucumis sativus L.) were evaluated under polyhouse (fifty percent shade/naturally ventilated) conditions for yield and quality. The genotypic and phenotypic coefficient of variations were highest for nodal position of first female flower, number fruits, fruit weight and fruit yield per plant which indicates maximum variability is existing in the genotypes. High genetic advance as per cent mean was observed for most of the characters, indicating that these characters are controlled by additive gene action.

10p chauchaungayxua3 07-02-2020 20 0   Download