| 巴山核桃实生资源特点及分布特征 |
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| 引用本文： | 徐永杰,韩华柏,裴东.巴山核桃实生资源特点及分布特征[J].中国农学通报,2022,38(30):51-55. |
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| 作者姓名： | 徐永杰 韩华柏 裴东 |
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| 作者单位： | 1.湖北省林业科学研究院,武汉 430075;2.林木遗传育种国家重点实验室,中国林业科学研究院林业研究所,北京 100091;3.四川省林业和草原科学技术推广总站,成都 610082 |
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| 基金项目： | 中央财政林业科技推广示范资金项目“核桃标准综合体应用与示范”(鄂[2020] TG01号);湖北省林业科学研究院基金项目“核桃林提质增效关键技术研究”(2021YJJ07) |
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| 摘 要： | 为摸清巴山核桃实生资源特点及分布特征,采用实地踏查的方法,以巴山山脉自西向东17个核桃分布重点县为踏查对象。结果表明：（1）巴山核桃资源量大,树体和果实性状变异丰富,蕴含了珍贵的核桃育种材料;（2）巴山核桃垂直分布范围为250~1800 m,在各区域与山区地形相一致,呈现依山分布的态势;（3）巴山核桃有3种实生栽培类型,其中核桃(J. regia)和泡核桃(J. sigillata)为主要分布种,核桃(J. regia)在巴山广泛分布,而泡核桃(J. sigillata)主要分布在巴山东南段海拔200~600 m区域;介于2个种之间的“中间类型”为其次分布种,集中分布在巴山中段区域。综上,巴山核桃蕴藏着中国核桃重要的基因型,将对研究中国核桃属植物的遗传分化起到重要作用。
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| 关 键 词： | 巴山核桃 实生资源 特点 分布特征 |
| 收稿时间： | 2021-11-08 |
Characteristics and Distribution of Walnut Seed Resources in Bashan Mountains |
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| XU Yongjie,HAN Huabai,PEI Dong.Characteristics and Distribution of Walnut Seed Resources in Bashan Mountains[J].Chinese Agricultural Science Bulletin,2022,38(30):51-55. |
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| Authors: | XU Yongjie HAN Huabai PEI Dong |
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| Institution: | 1.Hubei Academy of Forestry, Wuhan 430075;2.State Key Laboratory of Tree Genetics and Breeding Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091;3.Sichuan Forestry and Grassland Science and Technology Promotion Station, Chengdu 610082 |
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| Abstract: | In order to find out the characteristics and distribution of walnut seed resources in Bashan Mountains, we visited 17 key counties of walnut production from the west to the east along the Bashan Mountains. The results show that: (1) there is a large amount of walnut resources in Bashan Mountains, and walnut trees and fruit characters have an abundant variation, which contains valuable walnut breeding materials; (2) the vertical distribution range of walnut in Bashan Mountains is 250-1800 m, which is consistent with the mountain terrain in each region, showing a trend of distribution along the mountains; (3) there are three types of walnut cultivation, among which, J. regia and J. sigillata are the main distribution species, J. regia is widely distributed over Bashan Mountains, while J. sigillata is mainly distributed in the southeast of Bashan Mountains with an altitude of 200-600 m; the intermediate type between these two species is the second distributed species, which is concentrated in the middle range of Bashan Mountains. In conclusion, walnut in Bashan Mountains contains important genotypes, which may play an important role in studying the genetic differentiation of Juglans in China. |
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| Keywords: | walnut in Bashan Mountains seed resources characteristics distribution |
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