Studies on effect of pruning time on fruit maturity, yield and quality of guava (Psidium guajava L.)
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Date
2019
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Punjab Agricultural University, Ludhiana
Abstract
The present investigation on “Studies on effect of pruning time on fruit maturity, yield and quality of guava (Psidium guajava L.)was conducted at Regional Fruit Research Station, Bahadurgarh, Patiala and Fruit Research Farm, Department of Fruit Science, Punjab Agricultural University, Ludhiana. On the entire tree, the 50 per cent portion from apex of one-year-old shoot was headed back on 15th and 30th of date of March, April, May and June months. Control trees were left unpruned. The tree growth parameters viz. net increase in tree height, spread and canopy volume recorded higher in control as compared to pruned trees. It was noticed that new shoot emergence and flowering delayed with delay in the pruning time. March-April pruning treatments recorded maximum flowering percentage during the months of April and May, while, May-June treatments shows maximum flowering percentage in the months of July and August. This shifting of flowering percentage in May pruned trees helps in the early fruit maturity and more yield during the winter season of guava. Maximum fruit weight, fruit number per plant, with highest fruit yield during winter season was obtained in trees, which subjected to pruning on 15th and 30th May. Times of pruning have non-significant effect on the total soluble solids and acidity of the guava fruit during both the seasons irrespective of variety; while, maximum vitamin C was found in May pruned trees. The present studies suggested that guava tree should be pruned between 15th and 30th May for early harvesting of quality fruits in winter season. The present studies suggested that guava tree should be pruned between 15th and 30th May for early harvesting of quality fruits in winter season.
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