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Central Institute for Subtropical
Horticulture, Rehmankhera, P. O. Kakori, Lucknow - 227 107, India.
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| A trial was
conducted in Uttar Pradesh, India, to determine the effect of pruning
dates on guava fruit yield. During 1991-93, fifteen trees, each of
cultivars Sardar and Allahabad Safeda were pruned in the first week of
February, March, April, May and June. During 1994-95, nine trees each
of Allahabad Safeda and Sardar were pruned on 15 and 30 April, May and
June. Six trees, each of Allahabad Safeda and Sardar were pruned on 15
and 30 May and June during 1995-96. Six trees each of Allahabad Safeda
and Sardar were pruned during 1996-98. Compared to pruning in February
and March, pruning from April through June, enhanced the number of
shoots and flowering percentage. Shoot growth was reduced in May- and
June-pruned trees. The total yield during winter increased
significantly (P less than or equal to 0.05) in May- and June-pruned
trees than the unpruned trees of both cultivars. May pruning
significantly increased the harvest in the winter season. Pruning from
February to March did not respond well for winter fruiting. Penetration
of photosynthetic photon flux was generally greater in canopies of
pruned trees during May and June. In all the years, May pruning
significantly increased the quantum of fruit yield harvestable in
December and January. . |
