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Subject: Horticulture × Author: Pooja × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Studies on the effect of plant growth regulators and nutrients in Kinnow mandarin
    (CCSHAU, 2017) Pooja; Ashwani Kumar
    The experiment comprising of thirteen fertilizer treatments in different combinations of growth regulators and nutrients was conducted on seven years old earmarked plants at Chaudhary Farm House, Malapur and in Post-harvest Technology Laboratory of the Department of Horticulture, CCS Haryana Agricultural University, Hisar during the year 2015-16 to study the effect of on fruit drop, yield and quality of Kinnow mandarin. The data were recorded on June drop, pre-harvest drop, number of fruits per plant, fruit weight, fruit yield, percent fruit retention, fruit length, fruit diameter, shape index, peel thickness, peel thickness index, juice content, rag content, peel content, TSS, acidity, ascorbic acid, total sugars, reducing sugars, non-reducing sugar and leaf N, P, K and Zn content. The recorded data were analysed using Randomized Block Design. The results of the experiment indicated that the foliar application of 2, 4-D, GA3, K2SO4 and ZnSO4 had significantly positive influence on most of the recorded parameters. The final fruit retention, number of fruits per plant, fruit yield, ascorbic acid content, shape index and non-reducing sugars were found maximum while June and pre-harvest drop was found minimum with foliar application of 2,4-D 20 ppm. The juice content and TSS were found maximum while peel thickness, acidity, peel content were found minimum with foliar application of 2,4-D 10 ppm. The total sugars, fruit size and fruit weight were observed maximum with K2SO4 2% while rag content was found maximum with GA3 20 ppm. The reducing sugar was found highest with foliar application of K2SO4 1.5%. The content of potassium and zinc content was found maximum with the foliar application of K2SO4 2% and ZnSO4 0.75% where as nitrogen and phosphorous content were found unaffected by the application of 2,4-D, GA3, K2SO4 and ZnSO4.