Effect of Pruning on Yield and Quality of High Density Guava (Psidium guajava L.).
Loading...
Date
2021-12
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
Abstract
The present investigation entitled “Effect of Pruning on Yield and Quality of High Density Guava (Psidiumguajava L.) var. L-49,” was carried out in the experimental farm, horticultural block at the Organic Farming Research Centre (OFRC), Chatha of Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu, during the year 2020-2021. The results obtained in the experiment showed that heading back of tertiary branches @ 50% portion + pruning of shoots by leaving 4 pairs of leaves significantly increased the vegetative growth, flowering, physical and chemical characteristics of guava. The maximum generative shoots (58.57), shoot length (28.90 cm), total shoots (97.06), vegetative shoots at 120 DAP (77.88), number of leaves at 90 DAP ( 44.47), number of secondary branches at 90 DAP (15.18), number of tertiary branches (25.07), plant spread at 120 DAP (37.10 cm), (leaf carbohydrate (12.72%), leaf nitrogen (2.76%), total biomass (12.67 Kg/plant), total chlorophyll (10.27 mg g-1), flowers per shoot (9.18), flowers per plant (88.95), fruit set percentage (83.25 %), minimum days taken to leaf sprout (20.78), flowering (62.48) and flower buds per plant (33.06) was recorded in heading back of tertiary branches @ 50% portion + pruning of shoots by leaving 4 pairs of leaves. The maximum fruits per plant (90.03) and yield (19.61 kg /plant), fruit weight (217.88 g), fruit volume (219.33 cc), fruit length (78.52 mm), fruit width (78.14 mm), TSS (13.44 ºB), total sugar (8.62 %), reducing sugar (5.32%), non reducing sugar (2.98%), ascorbic acid (231.91 mg/100g of pulp) and pectin (0.72%) were also recorded with heading back of tertiary branches @ 50% portion + pruning of shoots by leaving 4 pairs of leaves. Therefore, it was concluded that by pruning the 4 pair of leaves in addition to 50 percent shoot pruning of the guava tree in the second fortnight of July under Jammu sub-tropics increases the yield and quality of winter season organic guava under high density organic management.
Description
Keywords
Citation
Preferred for your work: Sher-e-Kashmir University of Agricultural Sciences and Technology Of Jammu