Abstract
The deficiencies of mineral elements, change the development of plants in a broad sense, and therefore may alter the growth and fruit quality. The objective of this work was to evaluate the influence of macronutrient and boron deficiencies on morphological characteristics of “Jupi” pineapple fruits. The treatments complete, -N, -P, -K, -Ca, -Mg, -S and -B were applied as nutrient solutions in plastic pots with 14 kg of purified beach sand and one pineapple plant as the experimental unit. The trial was set up a randomized complete blocks design with six replicate. Nitrogen deficiency reduced fruit mass with and without crown, fruit length and diameter and peduncle diameter, increased TA, TSS and vitamin C, reduced TSS/TA, pH, pulp coloration and sensory acceptance of the fruits; phosphorus deficiency reduced fruit mass with and without crown, fruit and crown length, potassium deficiency reduced fruit mass with and without crown, length and diameter peduncle and calcium deficiency reduced peduncle diameter. Peel thickness was not affected by any deficiency. Nitrogen is the nutrient that most influenced the fruits quality of pineapple “Jupi”.
Highlights
The participation of Brazil in the external market of pineapple is small, despite being a typical fruit of tropical andHow to cite this paper: Ramos, M.J.M. and da Rocha Pinho, L.G. (2014) Physical and Quality Characteristics of Jupi Pineapple Fruits on Macronutrient and Boron Deficiency
The experimental unit was represented by one plant placed into a plastic pot containing 14 kg of beach sand previously purified by soaking it with pure water until stable pH of 5.0 followed by a final wash with deionized water
The purification consisted of the soak of the sand with hydrochloric acid diluted in water in the proportion of 1:4 during about four hours, in plastic container of 60 liters and subsequent wash with pure water until that the pH was stabilized in close value of 5, when, it was made a final wash with deionized water
Summary
The participation of Brazil in the external market of pineapple is small, despite being a typical fruit of tropical andHow to cite this paper: Ramos, M.J.M. and da Rocha Pinho, L.G. (2014) Physical and Quality Characteristics of Jupi Pineapple Fruits on Macronutrient and Boron Deficiency. The participation of Brazil in the external market of pineapple is small, despite being a typical fruit of tropical and. How to cite this paper: Ramos, M.J.M. and da Rocha Pinho, L.G. (2014) Physical and Quality Characteristics of Jupi Pineapple Fruits on Macronutrient and Boron Deficiency. G. da Rocha Pinho subtropical regions, and the country sustain the second largest world production [1]. In order to gain competitiveness in foreign markets it requires the provision of fruit of excellent quality. The cultivars planted in Brazil are the Pérola and Smooth Cayenne. Jupi is resembles the “Pérola”, which differs by cylindrical format of the fruit. The cylindrical form of the fruits gives that cultivar greater preference as industrial raw material for processing slices in syrup, for increased yield
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