Studies on various factors and their management for pink berry formation in Thompson Seedless grapes
Name of PI with associates
Dr. S.D. Ramteke, Sr. Scientist (Plant Physiology)
Dr. J. Sharma, Sr. Scientist (Soil Science)
Dr. Anuradha Upadhyay, Sr. Scientist (Biotechnology)
Dr. R.G. Somkuwar, Principal Scientist (Horticulture)
Dr. J. Satisha, Sr. Scientist (Horticulture)
Dr. K. Banerjee, National Fellow (ICAR)
To study the effect of nutrients and hormones under field conditions on the pink berry incidence.
To study the effect of soil type on the pink berry formation.
To find out the induced callus and cell suspension culture in Thompson Seedless.
To study the accumulation of phenolics, anthocyanin and amino acids during different stage of berry development.
To analyse the expressions of anthocyanin pathway structural genes in pink berry affected grapes.
To survey the different regions to find out the root cause of pink berry formation.
1 January 2007 to 31 December 2012
Eco-bio-physiological disorders like pink berry in white varieties like Thompson Seedless and its mutants results in considerable losses particularly in the export markets as discoloured grapes are accepted in the overseas markets. The exact nature and causes of the disorder are not properly understood yet. The development of pink colour in pericarp is being observed since 1975. The pigment development is due to presence of anthocyanin pigments and it starts at veraison stage. Many factors like diurnal variations in temperature, exposure to light, hormone usage, mechanical injury, girdling, rootstock and nutrient etc. have been found to influence the incidence.
Total outlay: Rs. 1,47,15,220