Vol. 7, Issue 3 (2019)
To studies on genetic variation in important morphological features and production technology of zucchini (Cucurbita pepo L.) in agro-climatic conditions of eastern Uttar Pradesh
Author(s): MK Singh, SP Singh, VB Singh and Pushpendra Kumar
Abstract: The present investigation was carried out the Main Experiment Station of the Department of Vegetable Science, N.D. University of Agriculture & Technology (Narendra Nagar), Kumarganj, Ayodhya using 7 genotypes viz., Cheongma Zucchini, Sandhya, Dark Green, Angelica, Cora, Sunny House, Black Dawn and two spacing Viz., 100 cm x 100 cm and 100 cm x 75 cm. The experiment was planted in randomized block design (factorial experiment) with three replications on 27th October 2013 to raise winter season crop. Observations were recorded on sixteen economic characters i.e., node number to first staminate flower anthesis, node number to first pistillate flower anthesis, days to first staminate flower anthesis, days to first pistillate flower anthesis, days to first fruit harvest, plant height (cm), average fruit weight (kg), fruit length (cm), fruit circumference (cm), number of fruits per plant, fruit yield per plant (kg), petiole length of full grown leaf (cm), lamina length of full grown leaf (cm), Tendril length (cm), staminate flower diameter (cm), Pistillate flower diameter (cm). Preliminary observations were recorded on five ancillary traits to support the selection of suitable zucchini genotype(s) for commercial production in eastern Uttar Pradesh. The salient achievements of the experiments are described in brief as under. The data on days to first fruit harvest revealed that in general first fruits of zucchini genotypes were harvested at about two days earlier under wider spacing (53.48 days) as compared to days required for first fruit harvest at closer spacing (55.4 days) and the effect of spacing on this trait was statistically significant. However, the genotype x spacing interaction was non-significant. The two important yield attributing traits directly influencing yield fruit weight and number of fruits per plants along with fruit yield per plant were significantly influenced by genotypes, spacings and genotype x spacing interactions. In general higher fruit weight of zucchini genotypes were recorded under wider spacing with a grand mean of 0.51 kg which was significantly higher than the fruit weight of 0.41 kg recorded under closer spacing. Slightly higher number of fruits per plant was recorded under closer spacing with a grand mean of 5.20 which was significantly superior to the number of fruits per plant recorded under wider spacing with a grand mean of 4.94. The zucchini genotypes recorded significantly higher fruit yield per plant under wider spacing with a grand mean of 2.52 kg per plant as compared to fruit yield per plant observed under wider spacing with a grand mean of 2.26 kg per plant. Due to higher number of plants per plot (12) under closer spacing 100cm x 75cm, the fruit yield per unit area i.e., q/ha appreciably increased in all the genotypes, except for variety Dark Green- a poor performing genotype, which exhibited luxuriant vegetative growth and produced lower fruit yield under closer spacing. Therefore, it was recommended that closer spacing of 100cm x 75cm is beneficial over wider spacing of 100cm x 100cm for commercial cultivation of zucchini. The genotype Cheongma Zucchini produced highest fruit yield of 444.40 q/ha followed by Sunny House (400.40 q/ha) and Angelica (333.30q/ha) under closer spacing Therefore the variety Cheongma Zucchini was considered most suitable for commercial cultivation in eastern Uttar Pradesh.
Pages: 3795-3803 | 422 Views 115 Downloads
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How to cite this article:
MK Singh, SP Singh, VB Singh, Pushpendra Kumar. To studies on genetic variation in important morphological features and production technology of zucchini (Cucurbita pepo L.) in agro-climatic conditions of eastern Uttar Pradesh. Int J Chem Stud 2019;7(3):3795-3803.
