Tropical and subtropical vegetables (2+1)

Use of growth regulators and chemicals.

• Application of 2, 4-D (2ppm) at flowering induces parthenocarpy, increases fruit set, advances fruit maturation and significantly increases total yield. Spraying of 4 CPA(Para-chlorophenoxy acetic acid)(20ppm) and N-metatolyphthalamic acid (0.5%) promotes fruit set in brinjal. NAA (60ppm) alone or in combination with BA(30ppm) applied on open flowers improved fruit set and ascorbic acid, GA3, IAA and thiourea advances the flowering by 4-5 days. Spray of mixtalol (long chain C24-C34 aliphatic alcohols) on Cv. Arka Navneet has given beneficial effect with single spray of 4 ppm solution.