Abstract: ‘Qingyin Ganlan’ is an middle late-season, table Chinese olive selected from a seeding of ‘Tainzhong Ganlan’. It was initially selected in 2012 for its good tastes with light astringency and full aroma. Through propagation by grafting, the fruit of grafted progeny was crisp, refreshing and aftertaste, with a litte fiber and light astringency. The fine character of ‘Qingyin Ganlan’ was remained basically. After regional adaptability testing at three sites (including Chaozhou, Jieyang and Shantou cities) over two years from 2021 to 2023, it was finally selected in 2023. This species is a tall tree, attaining a height of 10-20 m, the tree is vigorous with semicircular crown and upright tree gesture. Young branches are rough, dull grey-brown in color. Leaf is imparipinnate with 19.7-41.5 cm long, and leaflets are elliptic, acuminate, leathery, 3.7-16.7 cm long, 2.1-6.3cm wide, smoothness. Inflorescences racemose, panicle, and flower is yellowish-white, 0.3-0.5 cm diameter, pedicel without villous. Its fruit is oval and the average fruit weight is 8.84 g. When the fruit is ripe, the skin is yellowish green and the flesh is yellowish white. And it tasts crisp, refreshing and aftertaste, with a litte fiber and light astringency. The fruit edible rate is 82.3%, with the content of soluble solids 14.4%, crude fiber 3.7%, the content of total sugar 5.3 g/100 g, the content of titratable acidity 10.56 g kg-1, the content of vitamin C 20.96 mg/100 g, the content of tannin 1.21×104mg kg-1, and the content of calcium 1.56×103 mg kg-1,the edible rate is 83.7%. The flowering period is late April to early June. The fruit development period is 210-225 days, and it matures at the end November in the east area of Guangdong province. The fruit branches are the spring shoots, with about 75% from the previous autumn shoots. The inflorescences are extracted from the axils of fruit branches, mostly on the top of the final and subfinal branches. Fruit setting rate 18.5%- 22.3%. It is resistant to drought, but frigolabile, and the disease resistance is moderate. Suitable cultivation area is Guangdong province, this variety can bear fruits next year after grafted, has a high yield potential. The average yield of ten-year-old trees in Guangdong province is 666.7 kg/666.7 m². Orchard should choose lateritic soil which is flat and has ability of moisture and fertilizer retention; spacing in the rows and spacing between rows are 4 -5 m×6 m, pruning includes pinching, bending and back spune, aiming at controlling tree height and maintaining tree vigor.
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