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Idesia (Arica)

versión On-line ISSN 0718-3429


PERIN, Lais et al. Cherry and Grape tomato fruits classification according different cropsystems and defoliate levels. Idesia [online]. 2018, vol.36, n.2, pp.143-151. ISSN 0718-3429.

With the advancement of small size tomato cultivation in recent years, studies on fruit grading are necessary to obtain a commercialization standard. Therefore, the objective of the work was to perform the grading, based on the fruit size of Grape and Cherry mini tomatoes, considering the effects of different cropping systems and defoliation levels. Tomato plants of Wanda Cherry Hybrid® and Dolcetto Grape Hybrid® varieties were grown in two closed soilless systems (troughs and pots), using substrate of raw rice husk, under three different defoliation intensities (without defoliation, removal of one and two leaves of the sympodium). For fruits grading, two sets of five sieves were used, with mesh drilling adapted for each variety. The chosen meshes were: 35, 30, 25, 20 and 0 mm for Cherry, and 25, 20, 15, 10 and 0 mm for Grape. From the beginning of the fruit harvest the variables of number and mean weight of fruits retained in each of the sieves were evaluated, for each variety. A total of 8284 fruits of the Cherry type and 8033 fruits of the Grape type were evaluated during seven months of harvest. Data were submitted to analysis of variance, linear regression, and comparison of means by the Tukey test. The obtained results indicated that defoliation reduced the amount of fruits grading as large for both Cherry and Grape varieties. The troughs system benefited the production of Grape variety fruits grading as large. The sieves 1, 2 and 3 are suitable for the fruits grading of both varieties. The grading of mini tomato fruits with the use of specific sieves for each type variety is feasible.

Palabras clave : troughs; pot; mean weight; Solanum lycopersicum; sieves.

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