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Effect of Benzothiazole-2-Oxyacetate on Flowering and Fruiting of Papaya

R. R. Dedolph
Botanical Gazette
Vol. 124, No. 1 (Sep., 1962), pp. 75-78
Stable URL: http://www.jstor.org/stable/2473457
Page Count: 4
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effect of Benzothiazole-2-Oxyacetate on Flowering and Fruiting of Papaya
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Abstract

1. A preliminary experiment showed that 4-month-old Solo Line 8 papaya plants, sprayed with benzothiazole-2-oxyacetic acid (B-2-OA) in August before flowering, flowered in less time and at a lower node than plants sprayed with TIBA, NAA, or IAA. Sprays of B-2-OA resulted in higher early fruit yield. Differences in yield diminished during subsequent harvests. 2. When NaB-2-OA was applied to juvenile papaya trees in mid-October, the threshold concentration of the flowering response was found to be between 20 and 30 p.p.m. The number of nodes to the first flower decreased at the rate of about one node per 10 p.p.m. increase in concentration. The early yield, as indexed by number and weight of fruit, was materially increased. 3. The earlier flowering and increased yields of earlier harvests may be economically advantageous.

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