Effect of foliar spray of plant growth regulators and micronutrients on growth, fruit yield and quality of acid lime (Citrus aurantifolia Swingle) cv. Ganganagar Lime– 1.
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Date
2021-10-27
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Banda University of Agriculture & Technology, Banda-210001, Uttar Pradesh, India
Abstract
The investigation was carried out during 2020-21 at the experimental orchard,
Department of Fruit Science, Banda University of Agriculture and Technology, Banda to
find out the effect of foliar spray of plant growth regulators and micronutrients on growth,
fruit yield and quality of acid lime (Citrus aurantifolia Swingle) cv. Ganganagar Lime – 1.
The experiment was set up in RBD having 10 treatments with 3 replications which were
treated with different concentrations of growth regulators and micronutrients i.e. T1 -
Control (water spray), T2 - GA3 (75 ppm) + NAA (100 ppm), T3 - ZnSO4 (1%) + FeSO4
(1%), T4 - GA3 (75 ppm) + ZnSO4 (1%), T5 - GA3 (75 ppm) + FeSO4 (1%), T6 - NAA (100
ppm) + ZnSO4 (1%), T7 - NAA (100 ppm) + FeSO4 (1%), T8 - GA3 (75 ppm) + ZnSO4
(1%) + FeSO4 (1%), T9 - NAA (100 ppm) + ZnSO4 (1%) + FeSO4 (1%) and T10 - GA3 (75
ppm) + NAA (100 ppm) + ZnSO4 (1%) + FeSO4 (1%). Among the plant growth attributes,
the maximum increment in trunk girth (3.55 cm) was recorded with the treatment T8 - GA3
(75 ppm) + ZnSO4 (1%) + FeSO4 (1%) and maximum leaf area (24.56 cm2
) was observed
with the treatment T9 NAA (100 ppm) + ZnSO4 (1%) + FeSO4 (1%). Whereas the
maximum initial fruit set (75.04 %), final fruit set (53.66 %), yield (10.01 kg per plant) and
minimum fruit drop (22.85 %) were observed with the treatment T10 - GA3 (75 ppm) +
NAA (100 ppm) + ZnSO4 (1%) + FeSO4 (1%). The other fruit quality attributes like
maximum average fruit weigh (28.39 g), fruit length (41.26 mm), fruit width (40.51mm),
TSS (7.2 ºBrix), juice percentage (52.73 %), ascorbic acid (30.20 mg/100g), total sugars
(1.66 %), reducing sugars (0.88 %) and non reducing sugars (0.78 %) were also recorded
with the treatment T10 - GA3 (75 ppm) + NAA (100 ppm) + ZnSO4 (1%) + FeSO4 (1%).
While, the maximum titratable acidity (6.81 %) was recorded with the treatment T9 - NAA
(100 ppm) + ZnSO4 (1%) + FeSO4 (1%) and minimum rind thickness (1.66 mm) were
found with the treatment T8 - GA3 (75 ppm) + ZnSO4 (1%) + FeSO4 (1%). On the basis of
the results of foliar spray of plant growth regulators and micronutrients on growth, fruit
yield and quality of acid lime under Bundelkhand region of Uttar Pradesh, the spray of
GA3 (75 ppm) + NAA (100 ppm) + ZnSO4 (1%) + FeSO4 (1%) can be recommended to the
farmers and researchers to obtain maximum fruit yield and good fruit quality in
Ganganagar Lime -1 cultivar of acid lime.
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Citation
Shubham Pandey 2021. Effect of foliar spray of plant growth regulators and micronutrients on growth, fruit yield and quality of acid lime (Citrus aurantifolia Swingle) cv. Ganganagar Lime– 1. M.Sc. Thesis. 65p.