Quality of grape as influenced by foliar spray of zinc and boron
Keywords:
Berry size, foliar spray, fruit set, and oxidation-reduction, pre-bloomAbstract
A field experiment was conducted at Horticulture farm, Rajasthan College of Agriculture, Udaipur. The experiment comprised of sixteen treatment combinations consisting of four levels of zinc and boron (0, 0.2, 0.3 and 0.4%). The foliar spray of zinc and boron were done at pre-bloom and after fruit set stages. Foliar spray of zinc at 0.4% gave the maximum juice content (71.87%), ascorbic acid (8.04 mg/100 ml juice), TSS (21.72%), reducing sugar (4.54%), non-reducing sugar (1.76%), total sugar (16.30%) and gave lowest acidity (0.61%), while foliar spray of 0.2 per cent boron gave the maximum juice content (72.02%), Ascorbic acid (8.18 mg/100 ml juice), TSS (21.47%), reducing sugar (14.50%), non-reducing sugar (1.71%) and Total sugar (16.22%) and gave lowest acidity (0.60%).Downloads
References
Agaev, N.R. 1985. Effectiveness of minor elements for the foliar nutrition of grapevines. Vinodelie-i-Vinogradarstvo-SSSR, 6: 51-52.
Alekperov, I.N. 1985. Effect of microelements on the productivity and quality of Tavriz grapevines. Vinodelie-i-Vinogradarstvo-SSSR, 6: 49.
Bacha, M.A., Sabbah, S.M., and Hamady, M.A. 1997. Effect of foliar application of iron, zinc, and manganese on yield, berry quality, and leaf mineral composition of "Thompson Seedless" and "Roumy Red" grape cultivars. Journal of King Saud University, Agricultural Sciences, 9: 127-140.
Gonzalez, R., Carrion, M., Siso, J.A., and Charlot, T. 1994. Effectivity of the application of lignomosulphonates of microelements to some crops. Io-anon-de-la-Estacion-Experimental-Agronomica de-Santiago-de-las, 213-223.
Hoggag, L.F., Maksoud, M.A., and El-Barkouky, F.M.Z. 1995. Effect of boron sprays on sex ratio and fruit quality of mango (Mangifera indica L.) cv. Hindi Be Sinnara. Annals of Agricultural Science, 40(2): 753-758.
Yadav, P.K. 1998. Note on yield and quality parameters of guava as influenced by foliar application of nutrients and plant growth regulators. Current Agriculture, 22(1/2): 117-119.
