STUDIES ON HIGH DENSITY PLANTING IN GUAVA (Psidium guajava LAM.) cv. SARDAR
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Date
2013-09
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K.R.C. COLLEGE OF HORTICULTURE COLLEGE OF ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
A field experiment was conducted to study ‘Effect of different spacings and
time and level pruning on growth, yield and quality of guava cv. Sardar’, during the
year 2012-13 at Department of Fruit Science, Kittur Rani Channamma College of
Horticulture, Arabhavi, University of Horticultural Sciences, Bagalkot.
The plants at spacing of 6 x 3 m registered significantly highest plant height,
number of secondary branches and number of tertiary branches at 5 months after
pruning (MAP). Significantly highest N-S and E-W canopy spread was recorded in
spacing of 3 × 3 m at 5 MAP. Maximum number of fruit set per plant and number of
fruits harvested per plant were recorded in plants of 3 × 3 m spacing, whereas
maximum per cent fruit set was noted in 3 × 1.5 m spacing which was on par with
spacing of 3 × 3 m and maximum yield was noted in closer spacing of 2 × 1 m.
Maximum TSS was recorded in fruits of closer spacing of 3 × 1.5 m spacing and
higher ascorbic acid was found in fruits harvested from plants of 6 × 6 m spacing.
Maximum number of secondary and tertiary branches were recorded in T1
(pruning performed during first week of April - first week of August - first week of
December), whereas highest N-S canopy spread was recorded in T3 (pruning
performed during first week of May - first week of September - first week of January)
after III pruning cycle. Among different pruning level L1 (plants pruned with 25 per
cent of shoot growth) recorded higher values for plant height, N-S and E-W canopy
spread. Interactions also give good result with respect to vegetative growth.
Among the pruning levels maximum yield tons per ha was recorded in L1
(plants pruned with 25 per cent shoot growth) and in interactions T2L1 (plants pruned
with 25 per cent shoot growth during third week of April - third week of
August - third week of December) recorded maximum yield per ha.
Description
TH475
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