Journal of Taiwan Agricultural Research

Author:Jer-Way Chang, Yung-Hsiung Cheng*, Chung-Rey Yen, Hsin-Tszu Hsu, Cheng-Nan Chao, Yung-Jou Tien, Chao-Chi Ho and Chien-Yih Lin

Abstract:

    A new litchi variety ‘Tainung No. 1’ was developed at the Chiayi Agriculture Experimental Station, ARI and passed the committee evaluation of the Agriculture and Food Agency Council of Agriculture, Executive Yuan, Taiwan, and released on June 8, 2004. The commercial name of this litchi variety was named as ‘Tsuey yuh’ litchi indicating the mature litchi fruit with green skin. The selection ‘76-C-2’, the designated as Tainung No. 1, was selected from the offspring of ‘Hak Yip’ (Black leaf)♀Î ‘Yu Her Bau’♂ which was crossed at 1987. The selection was evaluated through a period of 17 years by comparing with the Taiwan important commercial varieties at Chaiyi Agriculture Experimental Station and at two advanced regional trials located at Dashu, Kaohsiung and Kukeng, Yunlin. ‘Tainung No.1’ has fruit weight with average ranging 15.7-27.7g; seed weight 0.4-1.3g; aril percent 80.5- 86.3%; chicken tongue seed percent 51.9-100% and total soluble solids 17.6-20.2°Brix. The harvest period in southern and central Taiwan was from middle May to early June. It was 7-10 days earlier than that of ‘Hak Yip’ which was the major variety in Taiwan. The color of mature fruit skin is green with mild red. The average yield was nearly 12 tons/ha, assessed by 5 years old trees at a planting density of 400 plants/ha. The development of this variety was capable of providing a better choice for growers and consumers in Taiwan.

Key words:Litchi, Tainung No.1, Tsuey Yuh, Breeding, Controlled pollination

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