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Title

EFFECTS OF AUXINS ON SIZE, QUALITY AND RIPENING OF 'SHAHANI' DATE

Writers

RAHEMI MAJID | BAHRAMI H.R.

Pages

 Start Page 190 | End Page 196

Abstract

 An experiment was conducted to investigate the effects of naphthalene acetic acid (NAA), naphthaleneacetamide (NAD) and 2, 4-dichlorophenoxyacetic acid (2,4-D) on quantity and quality of 'Shahani' date. Twenty four l5-year-old 'Shahani' date palms were selected for the experiment in a commercial orchard in Jahrom, Fars province. Fruit bunches on the selected trees were treated with NAA (0, 40, 60 mg 1-1), NAD (0, 80, 120 mg 1-1) and 2,4-D (0, 10, 20 mg 1-1). NAD at 80, 120 mg 1-1 significantly increased weight, length, diameter and pulp weight of fruit during khalal and tamer stages NAA at 40 and 60 mg 1-1 and 2,4-D at 10 and 20 mg r' also increased length and diameter of fruits at khalal and tamer stages, but NAA was more effective than 2,4-D in improving fruit characteristics. In general, NAA, NAD and 2,4-D delayed fruit RIPENING up to 17 d and reduced total soluble solids (TSS) particularly at higher concentrations

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