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20223
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Subject: Fruit Science × End date: 2023 × Start date: 2022 ×
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    ThesisItemOpen Access
    Studies on nature of fruit drop, yield and quality of Kinnow mandarin
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-12) Saini, Poonam; Rana, G.S
    The experiment entitled “Studies on nature of fruit drop, yield and quality of Kinnow mandarin” was conducted at the experimental orchard, Department of Horticulture, CCS Haryana Agricultural University, Hisar during 2019-20 and 2020-21 to find out the best concentration of foliar application of growth regulators, nutrients and fungicides in improvement of growth, yield, quality and nutrient status of leaves. There were eighteen treatments, i.e., 2,4-D 10 ppm, 2,4-D 15 ppm, GA3 15 ppm, GA3 20 ppm, Urea 1%, Urea 1.5%, Zinc Sulphate 0.5%, Zinc Sulphate 0.75%, Bavistin 1000 ppm and their combinations with three replications by taking one replication per plant on 9-year-old Kinnow plants. The foliar application of growth regulators, nutrients and fungicides treatments and their combinations had significant effect on fruit drop, growth, yield and quality of Kinnow mandarin. Foliar application of 2,4-D 15 ppm + Urea 1.5% + Zinc Sulphate 0.75% + Bavistin 1000 ppm in Kinnow mandarin recorded lower June fruit drop in the order of 13.65% and 15.77% during 2019-20 and 2020-21, respectively and pre-harvest drop in the order of 25.65% and 34.21% during 2019-20 and 2020-21, respectively as compared to control. The growth parameters i.e., plant spread, trunk diameter, leaf area, fruit retention and leaf chlorophyll content were found maximum with foliar application of 2,4-D 15 ppm + Urea 1.5% + Zinc Sulphate 0.75% + Bavistin 1000 ppm. Plant height, fruit length, fruit breadth and fruit weight were effectively improved by foliar application of GA3 20 ppm + Urea 1.5% + Zinc Sulphate 0.75% + Bavistin 1000 ppm. Foliar application of 2,4-D 15 ppm + Urea 1.5% + Zinc Sulphate 0.75% + Bavistin 1000 ppm was significantly improved number of fruits per tree and yield. Kinnow mandarin fruits sprayed with 2,4-D 15 ppm + Urea 1.5% + Zinc Sulphate 0.75% + Bavistin 1000 ppm resulted in 27.42% and 30.64% higher yield during 2019-20 and 2020-21, respectively as compared to control. Kinnow fruit quality in terms of TSS, acidity, TSS/acid ratio, ascorbic acid, juice content, rag content, peel content and peel thickness were significantly affected by foliar application of 2,4-D 15 ppm + Urea 1.5% + Zinc Sulphate 0.75% + Bavistin 1000 ppm. Number of seeds per fruit and seed weight were not significantly affected by foliar application. Maximum leaf N, Zn, S and Fe were recorded with foliar spray of 2,4-D 15 ppm + Urea 1.5% + Zinc Sulphate 0.75% + Bavistin 1000 ppm, however leaf P and K were not significantly affected by foliar application of plant growth regulators, nutrients and fungicides.
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    ThesisItemOpen Access
    Effect of herbicides on weed control and quality of guava cultivar L-49
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-10) Pooja; Goyal, Ramesh Kumar
    The experiment entitled “Effect of herbicides on weed control and quality of guava cultivar L-49” was carried out at Experimental orchard of Department of Horticulture, CCS Haryana Agricultural University, Hisar during the year 2019-20 and 2020-21 in winter season. The experiment was carried out to find the effect of herbicides and sequential applications of herbicides on soil properties, weed control, growth characters, fruit and yield attributes on guava cultivar L-49. The treatments comprising 21 levels of herbicides in experiment 1 and 15 levels of sequential applications of herbicides in experiment 2. The treatments were laid out in a randomized block design with three replications keeping a net plot size of 6.0 x 6.0 m separately. The data were recorded on various parameters, which were influenced by different levels of herbicides and sequential applications of herbicides. In experiment 1, weed free treatment was found best for soil properties viz. ECe and available N, P, K, Zn and Fe; weed parameters viz. weed density, visual mortality, fresh and dry weight; growth parameters viz. plant height, plant spread, leaf area, chlorophyll content; fruit parameters viz. fruit weight, fruit length, fruit breadth, number of fruits, yield, fruit firmness, fruit colour; and quality parameters viz. TSS, acidity, ascorbic acid, TSS:acidity ratio and pectin content. Among herbicidal treatments, the combination of glyphosate (1.26 kg/ha) + carfentrazone (20 g/ha) and glyphosate (1.26 kg/ha) + oxyflourfen (100 g/ha) were found best. In experiment 2, from all the sequential application of herbicides, the treatment glyphosate 1.26 kg/ha (July) fb glyphosate 1.26 kg/ha (August) fb glyphosate 1.26 kg/ha (September) was found best for soil properties viz. ECe and available N, P, K, Zn and Fe; weed parameters viz. weed density, visual mortality, fresh and dry weight; growth parameters viz. plant height, plant spread, leaf area, chlorophyll content; fruit parameters viz. fruit weight, fruit length, fruit breadth, number of fruits, yield, fruit firmness, fruit colour; and quality parameters viz. TSS, acidity, ascorbic acid, TSS:acid ratio and pectin content.
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    ThesisItemOpen Access
    Aonla and Moringa beverage and its keeping quality during storage
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-09-05) Majhi, Kiran Kumar; Lather, Rajesh
    The current study was conducted to standardize the preservation of aonla juice using preserva-tives and to develop an aonla-based RTS beverage blended with moringa and beet root. Aonla juice was extracted and kept at room temperature for preservation up to three months. Ascorbic acid, non-reducing sugars and organoleptic rating were found decrease during storage, while TSS, acid-ity, total sugars, reducing sugars and tannins of juice were found to increase. Aonla juice preserved with sterilized bottle with pasteurized juice was found to be the most effective in minimizing the chemical changes in the juice during storage up to three months at room temperature. Aonla juice, moringa extract and beet root extract were blended at varying concentrations to develop the RTS beverage. Ascorbic acid, non-reducing sugars, tannins and organoleptic rating were found decreased during storage, while TSS, acidity, total sugars and reducing sugars of RTS were found to increase. RTS made with 50:25:25 aonla juice, moringa juice and beet root was found to maintain colour, flavour, taste and other quality characteristics the best for three months of room temperature storage, followed by RTS made with 25:75 aonla juice and moringa extract. The aonla juice and aonla based RTS beverage blended with moringa and beetroot was stored for three months and analyzed at 15 days interval. Blending of aonla juice, moringa leaf extract juice and beetroot juice in RTS can be a good source for immune-booster drink as it pos-sesses various health benefiting effects.