Jackfruit exhibits a high degree of genetic diversity due to cross-pollination and heterozygosity; nevertheless, little is known about the characterisation of fruit quality in jackfruit genotypes grown in tropical Australia. In this study, patterns of morphological and biochemical variation in the fruit of 12 jackfruit genotypes were investigated. Maximum fruit weight and pulp weight were recorded in ‘Accession 304 (yellow-fleshed)’, which can be more suitable for domestic markets. ‘Accession 348 (orange-fleshed)’ exhibited the highest fruit edible portion, showing its potential for both table and processing purposes. There was evidence of wide variability among jackfruit genotypes in total dry matter content ranging from 20.48% in ‘Seedling 1 (yellow-fleshed)’ to 29.66% in ‘Rajang (orange-fleshed)’. The highest ratio of soluble solids content: titratable acidity was recorded in the fruit of ‘Seedling 2 (orange-fleshed)’ which can be a viable option for processing purposes. Orange-fleshed genotypes having higher a*, ascorbic acid and carotenoid content can be favourable for fresh consumption due to bright-coloured bulbs. ‘Accession 306 (yellow-fleshed)’ exhibited the highest total phenolics content, while ‘Rajang (orange-fleshed)’ showed the highest total flavonoids content. Overall, these findings highlight the unique characteristics of each jackfruit genotype and this information would be useful when selecting the genotypes for marketing and processing purposes.

中文翻译：

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澳大利亚热带菠萝蜜 （Artocarpus heterophyllus Lam.） 基因型果实品质性状的变异性


由于异花授粉和杂合性，菠萝蜜表现出高度的遗传多样性;然而，人们对在热带澳大利亚种植的菠萝蜜基因型的果实品质特征知之甚少。在这项研究中，研究了 12 种菠萝蜜基因型果实的形态和生化变异模式。最大果实重量和果肉重量记录在'Accession 304 （yellow-fleshed）'中，更适合国内市场。'Accession 348 （orange-fleshed）' 的果实可食用部分最高，显示出其用于餐桌和加工目的的潜力。有证据表明，菠萝蜜基因型的总干物质含量存在很大差异，从“幼苗 1 号（黄肉）”的 20.48% 到“拉江（橙肉）”的 29.66% 不等。可溶性固形物含量：可滴定酸度的比率最高，记录在 'Seedling 2 （orange-fleshed）' 的果实中，这可能是加工目的的可行选择。由于鳞茎颜色鲜艳，具有较高 a*、抗坏血酸和类胡萝卜素含量的橙色果肉基因型可能适合新鲜食用。'Accession 306 （yellow-fleshed）' 的总酚含量最高，而 'Rajang （orange-fleshed）' 的总黄酮含量最高。总体而言，这些发现突出了每种菠萝蜜基因型的独特特征，这些信息在选择用于营销和加工目的的基因型时非常有用。