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中国农学通报 ›› 2021, Vol. 37 ›› Issue (28): 20-27.doi: 10.11924/j.issn.1000-6850.casb20200100051

• 林学·园艺·园林 • 上一篇    下一篇

引种杂交杨光合-光响应特征

陈勇1(), 古丽娜儿1, 王兴胜1, 夏诗书2, 程平2, 李宏2()   

  1. 1伊犁哈萨克自治州林木良种繁育试验中心,新疆伊犁 835311
    2新疆林业科学院,乌鲁木齐 830000
  • 收稿日期:2020-01-15 修回日期:2020-10-21 出版日期:2021-10-05 发布日期:2021-10-28
  • 通讯作者: 李宏
  • 作者简介:陈勇,男,1969年出生,江苏盐城人,高级工程师,本科,研究方向:良种选育与推广。通信地址:835311 新疆伊犁察布查尔县伊犁州林木良种繁育试验中心,E-mail: 124133841@qq.com
  • 基金资助:
    新疆维吾尔自治区林业发展补助资金项目“优良杨树品种的二次选育与培养研究”(新林科字[2017]26号)

The Photosynthetic-light Response Characteristics of Hybrid Poplar

Chen Yong1(), Gulanr 1, Wang Xingsheng1, Xia Shishu2, Cheng Ping2, Li Hong2()   

  1. 1Ili Experimental Center of Tree Breeding for Improved Varieties, Xinjiang Uygur Autonomous Region, Ili Xinjiang 835311
    2Xinjiang Academy of Forestry Sciences, Urumqi 830000
  • Received:2020-01-15 Revised:2020-10-21 Online:2021-10-05 Published:2021-10-28
  • Contact: Li Hong

摘要:

利用直角双曲线修正模型对伊犁地区22个引种杂交杨光合-光响应曲线进行拟合,阐明引种杂交杨光合生理特性,为伊犁地区优树选育提供参考。结果表明,‘LX-2’、‘84-306’、‘I-262’、‘D5-20’、‘D5-9’、‘DX-08-1’和‘DM-9-16’最大光合潜力较强;‘CL-6’、‘93-8-18’、‘108’、‘93-8-17’和‘LX-6’更能够适应弱光环境;‘CD-2’、‘D5-20’、‘D5-9’和‘93-8-17’对光能的转化效率更高;‘93-8-18’、‘108’、‘CL-6’和‘LX-6’暗呼吸速率低,利于有机物积累。最大光合潜力较强的品系更能够适应伊犁地区高光环境,建议多年栽植驯化光合潜力相对较小的品系,使其尽可能适宜当地环境,保留种质资源。

关键词: 引种, 杂交杨, 光合-光响应, 直角双曲线修正模型, 净光合速率

Abstract:

Modified rectangular hyperbola model was used to fit the photosynthetic-light response curve of 22 introduced hybrid poplar clones in Ili, to clarify the photosynthetic and physiological characteristics, which could provide a reference for the selection of superior trees. The results showed that: the maximal photosynthetic potential of ‘LX-2’, ‘84-306’, ‘I-262’, ‘D5-20’, ‘D5-9’, ‘DX-08-1’ and ‘DM-9-16’ was strong. ‘CD-2’, ‘D5-20’, ‘D5-9’ and ‘93-8-17’ were more efficient in the conversion of light energy. ‘93-8-18’, ‘108’, ‘CL-6’and ‘LX-6’ had low dark respiration rate, which was beneficial to organic accumulation. The clones with stronger maximum photosynthetic potential were more adaptable to the high light environment in Ili. It is suggested that the clones with small photosynthetic potential should be domesticated for many years to make them as suitable as possible to the local environment and retain the germplasm resources.

Key words: introduction, hybrid poplar, photosynthetic-light response, modified rectangular hyperbola model, net photosynthetic rate

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