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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 8, Issue 3 (2019)

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

Author(s):

RN Kanpure, R Tiwari, AK Barholia, SS Kushwah, 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 two successive years. Results of two year pooled data revealed that the minimum physiological loss in weight (PLW) (4.68%), (7.44%) and (12.16%) was recorded in variety Chittidar on 3, 6 and 9 days storage. The maximum fruit length (7.30cm), (7.10cm), (6.66cm) and (6.04cm) was recorded in guava variety Chittidar and maximum fruit diameter (7.80cm), (7.50cm), (7.12cm) and (6.52cm) was recorded in guava variety of Dharidar on 0, 3, 6 & 9 days storage, maximum specific gravity (0.96), (0.94) & (0.91) was recorded in Chittitar on 0, 3 & 6 days storage, however on 9th day at storage specific gravity was found non significant. At 9 days storage, the maximum marketable fruits (47.72%) were obtained in Chittidar.
As regards to plant growth regulator (GA3) and nutrients (Ca (NO3)2) & (K2SO4), the minimum physiological weight loss (2.97%), (5.20%), (10.04%) was recorded in T12 which was followed by T7 (3.70%), (5.46%) & (10.67%) on 3, 6 & 9 days at storage condition respectively. Maximum fruit length and diameter (7.29cm), (7.15cm), (6.83cm) & (6.27cm) and (7.49cm), (7.19cm), (6.87cm) & (6.30cm), maximum specific gravity (1.01), (0.99), (0.97) & (0.95), maximum marketable fruits (72.13%) was obtained in T12 which was followed by T7 (71.23%) on 9th days at storage. Interaction study revealed that significant variation was noticed for physiological loss in weight in both years of experiment. The minimum physiological loss in weight (PLW) was recorded in (2.96%), (5.09%) & (9.96%) in V2T12 on 3, 6 and 9 days at storage. Maximum marketable fruits (72.81%) were obtained in V2T12 on 9th days at storage. However, non significant variations were noticed in fruit size (length & diameter) and specific gravity under the present investigation.

Pages: 3955-3959  |  1148 Views  530 Downloads


Journal of Pharmacognosy and Phytochemistry Journal of Pharmacognosy and Phytochemistry
How to cite this article:
RN Kanpure, R Tiwari, AK Barholia, SS Kushwah, SN Mishra and R Lekhi. Effect of pre harvest spray of gibberellic acid, calcium nitrate and potassium sulphate on post harvest behaviour of winter guava (Psidium guajava L.) fruits. J Pharmacogn Phytochem 2019;8(3):3955-3959.

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