Title: Effect of indole-3-acetic acid and naphthalenacetic acid on the yield muskmelon (Cucumis melo L.).
Abstract: The effect of different doses of indol-3-acetic acid (IAA) and
naphthalene acetic acid (NAA) in melon (Cucumis melo L.) cv. Edisto was
studied on the number of fruits/plants (NFP), fruit weight (FW) and
fruit yields (FY). The statistical desing was a split-split plot design
with three replications. The treatments were: growth regulators
(sub-subplot), dose (subplot) and time of application (main plot).
Applications of IAA and NAA in dose of 0, 50, 100, 150 and 200 mg L-1
were sprayed on plants at 7, 14 and 21 days after the flowering (daf).
The 100 mg L-1 dose presented the greater NFP (1.84), whereas 200 mg
L-1 dose decreased NFP (1.23). The IAA presented the greater NFP
(1.68). The FW and FY decreased with respect to control in the studied
doses. The IAA at different times of application did not influence FW
and FY. The IAA and NAA presented the best FW at 21 das (1.05 kg) and
14 (1.07 kg) respectively. Nevertheless, the IAA decreased the FW (0.69
kg) at 7 das. Control (17.17 t ha-1) and 100 mg L-1 (15.84 t ha-1)
presented the best yields without significant differences. Both growth
regulators (IAA and NAA) presented better yields (15.77 and 16.31 t
ha-1, respectively) at 14 das. NAA decreased FW (9.77 t ha-1) at 7 das.
The results indicated that growth regulators, doses and times of
application did not increase yields fruits of muskmelon cv. Edisto 47.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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