EFFECT OF LEAF TO FRUIT RATIO ON GROWTH, YIELD AND QUALITY OF CUSTARD APPLE CV. GJCA-1 3622
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Date
2022-08
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JAU JUNAGADH
Abstract
The present investigation entitled “Effect of leaf to fruit ratio on growth,
yield and quality of custard apple cv. GJCA-1.” was conducted at FRS, Madhadi
Baug, College of Horticulture, Junagadh Agricultural University, Junagadh during the
year 2021-22.
The treatments comprised of eight level viz., T1: (Leaf: fruit, 4:1), T2: (Leaf:
fruit, 6:1), T3: (Leaf: fruit, 8:1), T4: (Leaf: fruit, 10:1), T5: (Leaf: fruit, 12:1), T6:
(Leaf: fruit, 14:1), T7: (Leaf: fruit, 16:1), T8: Control. The experiment was laid out in
Randomized Block Design (RBD) with three replications.
The result indicated that among eight treatment, maximum leaf area (87.78
cm2
), maximum chlorophyll content (52.83 SPAD) and maximum leaf carbohydrate
content (0.84 %) were observed in T6 (Leaf: fruit, 14:1), maximum fruit weight
(178.33 g), maximum fruit length (78.31 mm), maximum fruit width (79.40 mm) and
maximum fruit volume (151.57 ml) was observed in T6 (Leaf: fruit, 14:1), maximum
pulp weight (79.33 g), maximum pulp: seed ratio (18.58) and maximum pulp: rind
ratio (1.29) was noted in T3 (Leaf: fruit, 8:1), maximum yield kg per plant (8.03
kg/plant), maximum yield tonne per hectare (6.69 t/ha) was recorded in T6 (Leaf: fruit,
14:1), maximum total sugar (11.77 %), maximum reducing sugar (3.80 %) and
maximum non reducing sugar (7.98 %) was recorded in T5 (Leaf: fruit, 12:1) at
harvest.
Therefore, leaf to fruit 14:1 showed the better performance in terms of leaf
area, chlorophyll content, leaf carbohydrate content, fruit weight, fruit length, fruit
width, fruit volume, yield kg per plant and yield tonne per hectare. In case of pulp
weight, pulp to seed ratio and pulp to rind ratio, leaf to fruit 8:1 showed the better
performance and in case of total sugar, reducing sugar and non reducing sugar, leaf to
fruit 12:1 showed the better performance in custard apple cv. GJCA-1.