Articles
Fruit size, fruit quality and mineral nutrient content of ‘Thong Dee’ pummelo fruit at harvesting stage
Article number
1432_23
Pages
165 – 170
Language
English
Abstract
The experiment was conducted on pummelo fruits (Citrus grandis (L.) Osbeck ‘Thong Dee’), collected from a farmer’s orchard at Kasetsomboon, Chaiyaphum Province, northeastern Thailand.
The objective of the study was to examine the correlation between fruit size and the qualities of pummelo fruit by measuring fruit weight, fruit volume, edible portion, hole in axis, firmness, total soluble solids content (TSS) and titratable acidity (TA) and TSS/TA. The result showed that fruit size had a positive correlation with fruit weight, fruit volume, edible portion, seed number and hole in the axis, but had a negative correlation between fruit size and TA. However, fruit size had no correlation with TSS. The fruit was separated into peel, pulp with juice and seed for analysis on nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), and zinc (Zn). The data revealed that the seed had a higher percentage of macronutrients, except K, but K had a high concentration in the pulp with juice.
The estimation of nutrient removal by 1 kg of fresh fruit was 4.5 g of N, 0.5 g of P, 3.86 g of K, 1.14 g of Ca, 0.29 g of Mg, 57.69 mg of Fe, 14.26 mg of Mn, and 21.55 mg of Zn.
The objective of the study was to examine the correlation between fruit size and the qualities of pummelo fruit by measuring fruit weight, fruit volume, edible portion, hole in axis, firmness, total soluble solids content (TSS) and titratable acidity (TA) and TSS/TA. The result showed that fruit size had a positive correlation with fruit weight, fruit volume, edible portion, seed number and hole in the axis, but had a negative correlation between fruit size and TA. However, fruit size had no correlation with TSS. The fruit was separated into peel, pulp with juice and seed for analysis on nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), and zinc (Zn). The data revealed that the seed had a higher percentage of macronutrients, except K, but K had a high concentration in the pulp with juice.
The estimation of nutrient removal by 1 kg of fresh fruit was 4.5 g of N, 0.5 g of P, 3.86 g of K, 1.14 g of Ca, 0.29 g of Mg, 57.69 mg of Fe, 14.26 mg of Mn, and 21.55 mg of Zn.
Authors
S. Meetha, S. Nampila, P. Hongpakdee, S. Isarangkool Na Ayutthaya
Keywords
grading, fruit quality, crop removal, plant nutrient
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