Breeding of New Variety of Late Frost Avoiding of Walnut Cultivar ‘Qingfeng 1’(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Breeding of New Variety of Late Frost Avoiding of Walnut Cultivar ‘Qingfeng 1’

Author(s):: ZHAO Tingsong1; TAN Fengqiong2; WANG Hongyan2; FAN Zhiyuan1; PAN Li1; ZHAO Qingyou3; (1.Yunnan Academy of Forestry，Kunming,Yunnan 650204；2.Lijiang Academy of Forestry，Lijiang,Yunnan 674100；3.Zhaoyang District of Zhaotong City Qingfeng Fruit Co.Ltd.，Zhaotong，Yunnan 657100)

Abstract:: Late-frost harm is serious in Northeast Yunnan，and it is lack of the walnut varieties late frost avoiding ability.‘Qingfeng 1’ is a new walnut cultivar via seeding selection and breeding in Zhaotong Prefecture of northeast Yunnan by Yunnan Academy of Forestry，Zhaoyang District of Zhaotong City Qingfeng Fruit Co.Ltd.and Ludian County Forestry Bureau.It has the ability to avoid late-frost harm by sprout late，the mean value of the three diameters:vertical diameter,edge diameter,transverse diameter was 3.8 cm，grain weight was 18.0 g，shell thickness was 1.0 mm，the kernel weight was 10.8 g，the kernel rate was 60.0%，the oil content was 71.1%，the protein content was 22.3%，easy to take the kernel，the white kernel is fat，plump，sweet taste pure without acerbity.It was identified in December 2010 and certified in December 2015 by the Forest Variety Approval Committee of Yunnan Province.

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Last Update: 2017-03-23