EFFECTIVITY OF FOLIAR SPRAYS OF ASCORBIC ACID AND ZINC SULPHATE ON THE GROWTH AND PRODUCTIVITY OF CHICKPEA.
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Date
2019-07-30
Authors
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Dr. Punjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
The Physiological response of foliar sprays of ascorbic acid (100, 200, 300 and 400 ppm) and zinc sulphate (0.5%) on the morpho-physiological, chemical, biochemical, yield and yield contributing parameters of chickpea cv. PDKV-Kanchan was studied during rabi 2018-2019 at farm of Botany section, College of Agriculture, Nagpur.
Experiment was laid out in RBD design with three replications and ten treatments. Sowing was done by dibbling method on dated 22nd Oct 2018 at a spacing of 30 cm x 10 cm. Thereafter, all the intercultural operations were done as and when required. The recommended dose of 20 kg N ha-1 and 50 kg P2O5 ha-1 was applied in all treatments.
Spraying of ascorbic acid and zinc sulphate was done two times i.e. on 25 and 40 DAS. Observations about morpho-physiological parameters such as plant height, leaf area and dry weight of plant were recorded at 25, 45, 65 and 85 DAS. RGR and NAR were calculated at 25, 45, 65 and 85 DAS. Plant height was recorded at maturity. Chemical and biochemical parameters like leaf chlorophyll, N, P, K content in leaves, protein content in seed were also estimated. Observations on yield and yield contributing parameters like 100 seed weight, number of pods plant-1, number of seeds pod-1, seed yield plant-1 (g), plot-1 (kg) and ha-1 (q) were recorded. All these above mentioned parameters were analyzed statistically.
Foliar sprays of ascorbic acid (100, 200, 300 and 400 ppm) and zinc sulphate (0.5%) significantly enhanced morpho-physiological parameters viz., plant height, number of branches plant-1, leaf area, dry weight of plant, RGR, NAR, chemical and biochemical parameters viz., nitrogen, phosphorus, potassium, chlorophyll in leaf, protein content in seed, yield and yield contributing parameters viz., 100 seed weight, number of pods plant-1, number of seeds pod-1, seed yield plant-1 (g), plot-1 (kg) and ha-1 (q) over control.
From overall results, it can be stated that foliar application of ascorbic acid and zinc sulphate with different concentrations improved the morpho-physiological, chemical and biochemical and yield contributing parameters might have helped in attaining better seed yield in the present investigation. The highest per cent increase in yield over control was observed in foliar application of 0.5% zinc + 200 ppm ascorbic acid (T8) i.e. 28.48 % over control (T1). But, considering the B:C ratio foliar application of 0.5% zinc + 200 ppm ascorbic acid was found most effective treatment having B:C ratio of 2.78 as compared to 2.36 in control.
Finally on the basis of B:C ratio it is inferred that, spraying plants at 25 and 45 DAS with 0.5% zinc + 200 ppm ascorbic acid could be considered as the most suitable concentration to expect promising improvement regarding the growth parameters, physiological characters and yield quality and quantity of chickpea.
Description
Combine foliar sprays of ascorbic acid (200 ppm) and zinc sulphate (0.5%) at 25 and 40 DAS significantly enhanced morpho-physiological, chemical and biochemical and yield and yield contributing parameters of chickpea at different growth stages. This experiment was carried out at experimental farm of Agricultural Botany Section, College of Agriculture Nagpur during rabi 2018.
Keywords
Growth and productivity, foliar spray, vitamin, mineral nutrient
Citation
RAUT, DNYANESHWAR AMBADAS. (2019). Effectivity of foliar sprays of ascorbic acid and zinc sulphate on the growth and productivity of chickpea. Department of botany, Nagpur. Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2019. Print. xv, 98p. (unpublished).