文献类型：期刊文献

英文题名：' Xin Xiong': ' : A New Walnut Cultivar with Numerous of Long Secondary Male Inflorescences fl orescences

作者：Wang, Baoqing[1] Ma, Qingguo[1,2]

第一作者：Wang, Baoqing

通信作者：Ma, QG[1];Ma, QG[2]

机构：[1]Xinjiang Acad Forestry, Key Lab Forest Resources & Utilizat Xinjiang, Key Lab Fruit Tree Species Breeding & Cultivat Xin, Natl Forestry & Grassland Adm, Urumqi 830052, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China

年份：2024

卷号：59

期号：9

起止页码：1340-1342

外文期刊名：HORTSCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001292791300004)】；

基金：This project is funded by the National Key R&DProgram of China (2022YFD1000101) and Xin-jiang Talent projects (2022SNGGGCC034)

语种：英文

外文关键词：breeding; Juglans; secondary fl ower

摘要：Walnut ( Juglans regia L.) is an important woody oil tree species in the Juglandaceae family (Vahdati et al. 2019; Wu et al. 2020). It is one of the oldest tree foods, which world widely cultivated throughout temperate regions for both its nuts and timber (Hassani et al. 2020; Ji et al. 2021; Vahdati et al. 2023). In China, walnut has been cultivated for more than 2000 years (Pei and Lu 2011). China has a harvested area of walnut up to 356,656 hm2 2 with a total output of 1,400,000 tons, which is ranked fi rst globally (FAO 2024). Walnut genetic resources from China had been introduced to many countries such as USA and widely used in the walnut breeding program (Akc,a , a et al. 2020). A large number of walnut cultivars have been developed by Chinese breeders since the 1960s, and new cultivars began to be introduced into China from abroad starting in the 1980s (Chen et al. 2014). Currently, more than 200 walnut cultivars have been developed and cultivated in China (Ma et al. 2019). In particular, most walnut cultivars in northern China originated from walnuts grown in Xinjiang Province, which owns abundant walnut germplasm resources and produces 22% of the country's ' s walnuts. With the purpose of adapting to diverse market demands, walnut breeders continuously carry out further cultivar breeding works. People's ' s Republic of China. ' Xin Xiong' ' was a new cultivar selected from indigenous individuals located at Hotan County (lat. 37 degrees 7'34.219''N, degrees 7 ' 34.219 '' N, long. 79 degrees 49'31.91''E). degrees 49 ' 31.91 '' E). This area is part of a warm, temperate zone with an extremely arid desert climate. The type of the soil is yellow sandy loam. Scions were collected and grafted onto six seedlings in Jiamu Experimental Station of Xinjiang Academy of Forestry. The secondary fl owers have appeared since 2015. The growth habits and nut traits were investigated during 2018-21. - 21. Consequently, in 2023, the new cultivar Xin Xiong was designated by the State Forestry Administration of the People's ' s Republic of China (Beijing, China) as certifi- fi- cate No. 20230770.