Variation of fruit characters within and among trees were studied in two shriveled-seed varieties of ‘Sah Keng’ and ‘Kang Wei’ and the most widely cultivated normal-seed variety ‘Hak Ip’. Analysis of variance showed that the variation among trees contributed more to the total variability than that within tree. Analysis also indicated that the variation among locations was much greater than that of within and among trees, in ‘Hak Ip’ variety.
In general, fruit length, fruit diameter, fruit weight, shell weight, and aril weight were not significantly different within tree. The protuberance of the shell, aril color, percentage of shrivelled seeds and ratio of aril weighs in fruit were not significantly different both within and among trees in most locations. The variation of soluble solids, flavor and seed size were different depending on the varieties and locations.
The shrivelled seed of ‘Sah Keng’, ‘Kang Wei’ and ‘Hak Ip’ were 36%, 26%, and 0%, respectively. Eating quality of shrivelled-seed fruits were superior to normal-seed fruits in smaller seed size and higher aril ratio. The fruit diameter, fruit Weight, and shell weight were highly correlated to seed size in two shrivelled-seed varieties, but not in normal-seed variety. The fruit size and fruit weight of normal-seed variety were larger and heavier than shrivelled-seed fruit, however, the soluble solids was not significantly different.
沙坑、港尾晚生及黑葉等品種之小核率分別為 36%、 26%及 0%，二小核種之可溶性固形物與黑葉種相近，其他性狀之差別亦於本文中分別比較。
Variation in Fruit Characters between Normal- and Shrivelled-seed Lychee Varieties