Training system and spatial arrangement in tomato (Solanum lycopersicum L.) under naturally ventilated polyhouse
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Date
2015-03
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VEGETABLE SCIENCE DEPT., ASPEE COLLEGE OF HORTICULTURE AND FORESTRY, NAVSARI AGRICULTURAL UNIVERSITY, NAVSARI
Abstract
The experiment was conducted during rabi, 2013-14 at Regional Horticultural Research Station (RHRS), Navsari Agricultural University, Navsari, Gujarat, India to evaluate the effect of different levels of spacing and training system on yield, its component traits and various quality parameters of tomato. The whole experiment was arranged over 9 treatments comprising of three levels each of spacing (S1: 60 x 30 cm, S2: 60 x 45 cm and S3: 60 x 60 cm) and training system (P1: Single stem, P2: Two stem and P3: Three stem training system) and laid out in a Randomized Block Design (Factorial Concept) with three replications.
Among different levels of spacing, narrow spacing (60 x 30 cm) recorded maximum plant height whereas, wider spacing revealed maximum leaf area. The wider spacing (60 x 60 cm) influenced most of the reproductive, quality and yield parameters except days to first picking, number of fruits per plant, ascorbic acid and fruit yield per m2, which were otherwise affected by either narrow or moderate level of spacing. Besides days to first picking and ascorbic acid, all the remaining characters under study were significantly favoured by single stem training system.
Different levels of spacing and training system indicated significant combined effect on various characters like plant height at 90 days after transplanting, leaf area, number of fruits per cluster, days to first picking, number of fruits per plant, fruit volume, vitamin A, average fruit weight, fruit yield per plant and fruit yield per m2. The treatment combination S3P1 recorded lowest incidence of whitefly as well as leaf minor.
Tomato cv. Heemsohna planted at the spacing of 60 x 60 cm and trained to single stem system (S3P1) recorded maximum average fruit weight and fruit yield per plant whereas, plants subjected to 60 x 45 cm spacing and single stem training system (S2P1) confirmed higher number of fruits per plant as well as yield per m2.
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