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Journal of Applied and Natural Science
An International Journal | Print ISSN: 0974-9411 | Online ISSN: 2231-5209
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Abstract
Journal of Applied and Natural Science 8 (1) : 23-27 (2016)
Effect of plant growth regulators on flowering behavior of cashew cv. Vengurla-4 grown in the hilly tracts of South Gujarat
V. R. Ghadage, T. R. Ahlawat*, S. L. Chawla, N. I. Shah1 and Nitesh Ghadage
Department of Fruit Science, ASPEE College Horticulture and Forestry, Navsari Agricultural University, Dandi Road, Navsari-396450 (Gujarat), INDIA
1Agricultural Experimental Station, Navsari Agricultural University, Paria-396145 (Gujarat), INDIA
*Corresponding author. E- mail: tahlawat4@gmail.com
Abstract : A trial was conducted at Subhir and Chikhalda locations in Dang district of South Gujarat, India to assess the effect of Ethrel, NAA and GA3 on the flowering behavior of cashew cultivar Vengurla-4 during 2013-14. Three concentrations each of GA3 (50, 75, 100 ppm), Ethrel (10, 30, 50 ppm) and NAA (50, 75, 100ppm) were applied as foliar sprays 20 days before blossoming and 20 days after full bloom in twenty year old trees of cashew cultivar Vengurla-4. Trees sprayed with 50 ppm Ethrel had significantly the highest number of flowering panicles per square meter (13.09), number of perfect flowers per panicle (87.11) and sex ratio (0.24) across locations and in pooled data. However, this was at par with 10 ppm Ethrel which emerged as the second best treatment of the trial. This study demonstrated the potential of Ethrel in improving various flowering parameters of cashew which are important determinations in increasing nut production.

Keywords :Anacardium occidentale, Ethrel, GA3, Perfect flowers, Sex ratio
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