EVALUATION OF LOCAL SELECTIONS OF CUSTARD APPLE (Annona squamosa L.)
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Date
2019-10-22
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K.R.C COLLEGE OF HORTICULTURE, ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
Performance of different custard apple local selections for vegetative growth, yield and quality parameters was studied during 2018-19 at Department of Fruit Science, Kittur Rani Channamma College of Horticulture, Arabhavi, University of Horticulture Sciences, Bagalkot, Karnataka.
Totally 25 custard apple local selections were evaluated with check variety Balanagar. Among the local selections, maximum plant height (2.78 m), North-South spread (180.33 cm), East-West spread (208.33 cm) and canopy volume (4.96 m3) was recorded in selection CLS-19 whereas, maximum stem girth (4.89 cm), maximum number of fruits per plant (34.00) and fruit yield (4.36 kg/plant) was recorded in selection CLS-9. Maximum fruit length (8.49 cm), fruit breadth (8.44 cm), fruit volume (170.50 ml), fresh fruit weight (198.42 g) and ripe fruit weight (176.10 g) was recorded in selection CLS-16. However, Maximum pulp weight, pulp per cent and pulp-peel ratio was noticed in selection CLS-18 (75.32 g, 46.84% and 1.56 respectively). Minimum peel weight (36.79 g), minimum number of seeds per fruit (14.17) and seed weight (3.81g) was noticed in selection CLS-1.
Fruit quality parameters viz., maximum TSS (29.67o B), TSS:acid ratio (141.94), reducing sugar (16.08%) and total sugar (18.87%) was recorded in selection CLS-24. However, Ascorbic acid was recorded maximum in CLS-23 (20.86 mg/100g), non reducing sugar was maximum in CLS-8 (4.44%), titratable acidity was minimum in CLS-7, CLS-9 and CLS-13 (0.19 % each) and selection CLS-17 recorded maximum shelf life of 5 days. Highest score for colour and appearance was recorded in selection CLS-24 (8.58), the texture of pulp found superior with a high score in CLS-9 (8.28), for taste and flavour in selection CLS-12 (8.55) and overall acceptability was noticed by securing highest points in CLS-24 (8.80). Minimum incidence of anthracnose (10.52%) and leaf spot (3.36%) was recorded in selection CLS-7 and CLS-6 respectively. Among 25 selections, only 7 selections recorded mealy bug incidence and it was minimum in CLS-5 (5.12%). Finally, selections CLS- 9, CLS-24 and CLS-7 were found better performer for yield, quality and overall acceptability.
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