Use of plant growth regulators has become a very common practice for the grape growers of India for achieving high-quality export grape production. To increase export quality grape production proper management of nutrients, canopy and judicious use of plant growth regulators (PGR’s) are the ways for grape growers and among these use of PGR’s are more responsive and effective to achieve target productivity and quality of grapes and every aspect of plant growth and development is controlled by plant hormones. In addition to naturally occurring hormones, a number of synthetic PGR’s like hydrogen cyanamide, forchlorfenuron (Ph.D.), 6-benzyl amino purine (6-BA), 1-naphthyl acetic acid (NAA), Chlormequat chloride (CCC), gibberellic acid (GA3) etc. are being used in modern viticulture. These growth regulators (PGR’s) are generally used in grape for various purposes viz. increasing fruitfulness, inducing bud break apart from increasing rachis elongation for production of the well-filled bunch, berry setting and also for the increase in berry size besides quality improvement & increase in shelf life. With the application of these PGR’s, there is always a risk of residues in grapes particularly the CCC, which is a stable compound hence its use is restricted. There is no problem of any kind with the application of other PGR’s. Hence, in brief, it is confirmed that the Indian grapes are free from residues of PGR’s.
Take Away Notes:
• The audience will be able to understand the role of PGR’s in table grape production.
• Improved production in respect to yield, quality or residue free will increase the net profit of the grower’s.
• Able to standardized the dose of plant growth regulator for new promising varieties.
• Able to understand the export scenario of table grapes.