Effect of fertilization on the postharvest quality of tomato (Physalis Ixocarpa Brot.) cv. Titan
Alma Delia Hernandez-Fuentes, Jose Manuel Pinedo-Espinoza, Francisco Reyes-Reyes, and Pablo Elorza-Martinez
Abstracts of 27th International Horticultural Congress & Exhibition (IHC 2006), August 13-19, 2006, COEX (Convention & Exhibition), Seoul, Korea. 494 pages.
2006
บทคัดย่อ
Effect of fertilization on the postharvest quality of tomato (Physalis Ixocarpa Brot.) cv. Titan
The objective of this study was to evaluated the relationship of dosages of fertilizers and quality.Five fertilization treatments were evaluated: T1, 10-5-10 + 1 F (kg.ha-1 of N, P2O5 and K2O + one plus foliar application); T2, 10-5-10 + 2 F; T3, 20-10-20 + 1 F; T4, 40-20-40 + 2 F) and T5, 10-5-10 (control).The plus foliar applications were 950 g MgSO4, 7H2O, 1230 g Ca(NO3)2, 140 g KNO3, 297 g NH4H2PO4, 551 g K2SO4, 150 g FeSO4, 7H2O. 60 g MnSO4.5 H2O, 84 g H3BO3, 6 g CuSO4.5H2O and 60 g ZnSO4.7H2O.The cv of tomato were Titan.For the postharvest analyses, four periods of storage were evaluated: 1(initial), 2(15 days), 3(30 days) and 4(45 days).Parameters evaluated were: Weight loss, total soluble solids, C Vitamin and titratable acidity.At the 45 days of storage the fruits of tomato fertilized with and 40-20-40 + 2F had the lowest.At the end of the storage period, the fruits of tomato cv Titán fertilized with the formula 40-20-20 +2 F and 20-10-10 +1 F, had the highest percentage of total soluble solids at the end of the storage the fruits of tomato cv Titán fertilized with the formula 20-10-20+ 1F had the lowest.At the end of the storage period the fruits of plants of tomato cv Titán fertilized with the formula 10-5-10 +1F had the highest content of C vitamin.