YIELD OF NATIVE GENOTYPES OF TOMATO AS AFFECTED BY ELECTRICAL CONDUCTIVITY OF NUTRIENT SOLUTION
The tomato (Lycopersicon esculentum) is a crop with high acreage and global production. Mexico is considered the center of domestication of this crop, but there are few studies on the potential and adaptation of native genotypes that may have the potential to compete with commercial genotypes, in terms of yield and quality, and can be cultivated in greenhouse and hydroponics and with low input of fertilizer. The objective of this research was to evaluate the effect of the electrical conductivity (EC) of the Steiner nutrient solution on yield and growth of native genotypes of tomato from Puebla, Mexico. A factorial experiment was established consisting of the combination of three EC (1, 2 and 3 dS/m), ten native genotypes (PUETHNE1-13, PUETHNE1-33, PUETHNE1-35, PUETHNE1-40, PUETHNE1-107, PUETHNE1-109, PUETHNE1-115, PUETHNE1-128, PUETHNE1-135, PUETHNE1-197) and two commercial hybrids as controls: Caiman (Enza Zaden®, beef type) and Sun 7705 (Nunhems®, saladettee type). Height of plant, diameter of stem, number of leaves, dry matter of stem and leaves, yield of four clusters as well as length and width of fruit were evaluated. A decrease of plant height was observed as EC was increased. Dry matter was directly related to the EC. Among genotypes, PUETHNE1-128 presented a yield similar to Caiman and Sun 7705 was surpassed by the above-mentioned genotypes, but this yield was equal to the rest of the native genotypes evaluated.
Flores-González, D., Sandoval-Villa, M., Sánchez-García, P., Ramírez-Vallejo , P. and Rodríguez-García, M.N. (2012). YIELD OF NATIVE GENOTYPES OF TOMATO AS AFFECTED BY ELECTRICAL CONDUCTIVITY OF NUTRIENT SOLUTION. Acta Hortic. 947, 69-76
Lycopersicon esculentum, production, hydroponics, greenhouse, salinity