International Journal of Chemical Studies
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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   

Vol. 7, Issue 3 (2019)

Effect of pre harvest spray of GA3, calcium nitrate and potassium sulphate on post harvest behaviour of guava (Psidium guajava L.) fruits


Author(s): RN Kanpure, R Tiwari, AK Barholia, SN Mishra and R Lekhi

Abstract: The present investigation was carried out in Instructional cum research fruit orchard and laboratory of Department of Fruit Science, College of Horticulture Mandsaur (M.P.) during 2015-16 and 2016-17. Results of two years pooled data revealed that minimum decay loss percentage (15.38% & 52.28%) on 6th and 9th days at storage condition respectively in fruits of Chittidar guava. Maximum TSS (10.97 oB, 12.15 oB, 11.93oB & 10.38oB) on 0, 3rd, 6th and 9th days at storage condition, minimum acidity (0.45%, 0.51% & 0.49%) on 0, 3rd & 6th, Chittidar was registered maximum value in respect to total sugars (7.82%, 8.94%, 8.49% &7.21%) on 0, 3rd, 6th and 9th days at ambient storage condition was recorded in Chittidar. Dharidar was registered maximum value in respect to pectin content (0.92%, 0.84%, 0.74% & 0.57%) on 0, 3rd, 6th and 9th days at storage condition respectively. As regards to plant growth regulator and nutrients (GA3, Ca (NO3)2 and K2SO4), minimum decay loss percentage (27.88%) was recorded in T12 followed by T7 (28.77%) and T10 (33.44%) on 9th day of storage respectively. The highest TSS (12.51 oB & 11.22 oB) was found in T12 which was followed by T10 (12.25 oB) & (11.08 oB) and T8 (12.08 oB) & (10.84 oB) on 6th and 9th days at ambient storage condition respectively. Lowest acidity (0.46%) was found in T8 and T12, with which equal performance on 6th day of storage. At 9th day of storage the minimum acidity (0.34%) was recorded with T12 which was followed by T10 (0.35%) and T8 (0.36%), maximum total sugars (10.15%, 11.11%, 10.68% & 9.57%) was recorded in T12 which was followed by T10 (9.64%, 10.81%, 10.31% & 9.16% ), maximum pectin content (1.18%, 1.12%, 1.06% & 0.92%) was recorded with T12 which was followed by T10 (1.17%, 1.11%, 1.02% & 0.88%) and T7 (1.14%, 1.09%, 0.99& 0.83%) on first 0, 3rd, 6th and 9th days at storage conditions respectively. Interaction study revealed that minimum decay loss percentage (26.81%) was recorded in V2T7 which was followed by (27.19%) in V2T12 and V1T12 (28.56%), highest TSS (11.83 oB, 13.07 oB oB, 12.77 oB & 11.35 oB) was found in V2T12 followed by V2T10 (11.49 oB, 12.79 oB , 12.46 & (11.33 oB) V2T8 (11.43 oB, 12.68 oB,12.38 oB &11.17 oB) on 0, 3rd 6th and 9th day at ambient storage condition respectively. Maximum total sugars (10.20%, 11.18%, 10.81 & 9.54%) were recorded in V2T12 on 0, 3rd, 6th & 9th days at storage condition respectively.

Pages: 2843-2848  |  520 Views  152 Downloads

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How to cite this article:
RN Kanpure, R Tiwari, AK Barholia, SN Mishra, R Lekhi. Effect of pre harvest spray of GA3, calcium nitrate and potassium sulphate on post harvest behaviour of guava (Psidium guajava L.) fruits. Int J Chem Stud 2019;7(3):2843-2848.
 

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