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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565

Vol. 7, Issue 4 (2019)

Effect of pruning and plant growth regulators on growth, flowering and fruit yield of guava (Psidium guajava L.) cv. Allahabad Safeda


Author(s): AB Parmar, HC Patel, JR Parmar and DD Patel

Abstract: A field experiment was conducted at the Horticultural Research Farm, Department of Horticulture, B. A. College of Agriculture, Anand Agricultural University, Anand during the years 2015-16 & 2016-17 with a view to study the “Effect of Pruning and Plant Growth Regulators on Growth, Flowering and Fruit Yield of Guava (Psidium guajava L.) cv. Allahabad Safeda”. The results pertaining to growth parameters with respect to pruning, significantly the maximum incremental plant height (0.74, 0.75 and 0.75 m), incremental plant spread North -South(0.79, 0.82 and 0.80 m), East-West (0.82, 0.86 and 0.84 m),highest number of flowers per secondary branch (32.11, 32.81 and 32.46), fruit set percent per secondary branch (75.05, 79.85 and 77.45 %), fruit retention percent per secondary branch (81.70, 81.72 and 81.71 %), number of fruits per shoot (4.38, 4.29 and 4.33), maximum number of fruits per plant (140.56, 143.30 and 141.93), fruit yield per plant (42.21, 43.22 and 42.72 kg),fruit yield per hectare (11.73, 12.01 and 11.87 t),minimum days to initial flowering (48.81, 49.81 and 49.31) and minimum fruit drop percent per secondary branch (19.36, 18.28 and 18.82 %)recorded with treatment 25 % shoot pruning during the years 2015-16, 2016-17 and in pooled analysis, respectively. With respect to effect of plant growth regulators, application of GA3 150 mg/l recorded the highest increased in incremental plant height (0.71, 0.73 and 0.72 m), incremental plant spread North - South (0.77, 0.81 and 0.79 m) and East-West (0.81, 0.84 and 0.83 m), number of flowers per secondary branch (31.99, 32.67 and 32.33), maximum fruit set percent per secondary branch (71.72, 80.34 and 76.13 %),fruit retention percent (80.34, 82.33 and 81.33 %), fruit yield per plant (39.37, 40.95 and 40.16 kg), fruit yield per hectare (10.94, 11.38 and 11.16 t) and minimum fruit drop percent (19.66, 17.67 and 18.67 %) in the years 2015-16, 2016-17 and in pooled analysis, respectively.

Pages: 612-615  |  364 Views  99 Downloads

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How to cite this article:
AB Parmar, HC Patel, JR Parmar, DD Patel. Effect of pruning and plant growth regulators on growth, flowering and fruit yield of guava (Psidium guajava L.) cv. Allahabad Safeda. Int J Chem Stud 2019;7(4):612-615.
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