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Ecosistemas y recursos agropecuarios

versión On-line ISSN 2007-901Xversión impresa ISSN 2007-9028


RODRIGUEZ, Diana Jasso de et al. Extracts of plants from the semidesert in the induction of tomato (Lycopersicon esculentum Mill) growth. Ecosistemas y recur. agropecuarios [online]. 2020, vol.7, n.1, e2342.  Epub 30-Mayo-2020. ISSN 2007-901X.

In the semi-arid areas of northeastern Mexico, species with high polyphenol content and antioxidant activity have been identified, which can be used as growth and fruit quality promoters in tomato plants. The objective was to know the effect of Rhus trilobata, Rhus muelleri, Flourensia microphylla, Flourensia retinophylla and Cucurbita foetidissima extracts, as growth and fruit quality promoters in saladette tomato plants, when compared with bioregulators, AIA, AG and 6-BAP. The dose of the extract and bioregulator was 75 mg L-1, at the transplant and at 34 and 55 days after the transplant. Every fifteen days the longitudinal growth and stem diameter, number of leaves, number of fruits, dry weight, in addition to weight and fruit production were evaluated, in addition to the quality variables: polar and equatorial diameter, firmness, pH, soluble solids total, lycopene and vitamin C content. The experiment was established under a completely randomized design with nine treatments and 12 repetitions. In general, extracts increased stem length and diameter, dry leaf weight, number and weight of fruits, and fruit production, with results similar to the 6-BAP bioregulator. The extract of R. muelleri showed the greatest effectiveness in promoting the growth and production of tomato fruit, which is why it represents an alternative for the formulation of a bio-stimulant of biological origin that improves the productivity of tomato plants.

Palabras llave : Bioregulators; extracts plants; Lycopersicon esculentum Mill.; fruit yield; growth promoter.

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