INFLUENCIA DEL BIOBRAS-16® Y EL QUITOMAX® EN ASPECTOS DE LA BIOLOGÍA DE PLANTAS DE FRIJOL.

Common bean is the most important legume in human consumption worldwide and in Cuba, it is necessary to increase crop production, since bean and rice are the nutritional basis of the people. Biobras-16® and QuitoMax® are bioactive products which are able not only enhancing plant growth and increasing crop yield but also they have antistress effects. This paper aims to determine the effect of the seed spray with QuitoMax® and Biobras-16® on bean plant growth and some biochemical indicators. Bean seeds of cv. Cuba C-25-9-N were sprayed with Biobras-16® 0,05 mg L-1 and QuitoMax® 500 mg L-1, one day before sowing. At the time of sowing, each seed was inoculated with 1 x 10-3 L of Azofert® and they were placed in pots containing eutric agrogenic Lixiviated Red Ferralitic soil with a low dose of mineral fertilizer (2,78 g of complete formula, NPK, 9-13-17). At 42 days after sowing, some growth indicators and chlorophyll, total soluble carbohydrate and protein concentrations were determined in the leaves. Results demonstrated that Biobras-16® significantly stimulated aerial part growth and leaf total soluble carbohydrates while QuitoMax® favoured only the last indicator. [ABSTRACT FROM AUTHOR]