浙江农业学报 ›› 2019, Vol. 31 ›› Issue (10): 1647-1654.DOI: 10.3969/j.issn.1004-1524.2019.10.10

• 园艺科学 • 上一篇    下一篇

西北盐碱地区不同柳枝稷品种光合特性与产量比较

常雯雯1, 刘吉利1,2,*, 吴娜3, 张永乾3, 何海锋3   

  1. 1.宁夏大学 资源环境学院,宁夏 银川 750021;
    2.宁夏旱区资源评价与环境调控重点实验室,宁夏 银川 750021;
    3.宁夏大学 农学院,宁夏 银川 750021
  • 收稿日期:2019-05-05 出版日期:2019-10-25 发布日期:2019-10-30
  • 通讯作者: *,刘吉利,E-mail: tim11082003@163.com
  • 作者简介:常雯雯(1993—),女,山西晋城人,硕士研究生,研究方向为能源植物栽培与利用。E-mail: changwenwen93@163.com
  • 基金资助:
    国家自然科学基金(31560361,31860344)

Comparative study on photosynthetic characteristics and yield of different switchgrass varieties in saline-alkali land of northwest China

CHANG Wenwen1, LIU Jili1,2,*, WU Na3, ZHANG Yongqian3, HE Haifeng3   

  1. 1. College of Resources and Environmental Science, Ningxia University, Yinchuan 750021, China;
    2. Ningxia Key Laboratory of Resource Assessment and Environment Regulation in Arid Region, Yinchuan 750021, China;
    3. College of Agronomy, Ningxia University, Yinchuan 750021, China
  • Received:2019-05-05 Online:2019-10-25 Published:2019-10-30

摘要: 为选择光合性能强、生物质产量高的柳枝稷品种,在宁夏银北盐碱地区,以11个能源作物柳枝稷(Panicum virgatum)品种为材料,利用灰色关联度分析法对它们开花期的蒸腾速率、气孔导度、净光合速率、胞间CO2浓度、水分利用效率5个光合指标和产量进行研究。结果表明:在盐碱地条件下,不同柳枝稷品种开花期的光合特性与产量差异显著,综合表现为:Cave-in-Rock>Alamo>Kanlow>Forestberg>Ansai>Pathfinder>Nebraska 28>Japan>Trailblazer>NewYork>Black Well。其中,Cave-in-Rock加权关联度与理想品种的关联度最大,产量较高,综合表现最优; Alamo和Kanlow加权关联度分别为0.711、0.654,且生物质产量高,分别为20.47、17.93 t·hm-2。经综合评价,Cave-in-Rock、Alamo、Kanlow在西北盐碱地区具有较高的产量潜力。Black Well、NewYork、Trailblazer、Japan、Nebraska 28综合表现较差,其他品种综合表现为中等水平。

关键词: 柳枝稷, 光合特性, 产量, 灰色关联度分析

Abstract: To screen switchgrass varieties with strong photosynthetic performance and high yield, eleven varieties of energy crop-switchgrass were used as materials in Yinbei saline-alkali region of Ningxia, using grey correlation analysis method to study yield and five photosynthetic indexes which were transpiration rate, stomatal conductance, net photosynthetic rate, intercellular CO2 concentration, water use efficiency. The results showed that there were significant differences in photosynthetic characteristics and yield among different switchgrass varieties at flowering stage under saline-alkali soil conditions. The general performance were Cave-in-Rock>Alamo>Kanlow>Forestberg>Ansai>Pathfinder>Nebraska 28>Japan>Trailblazer>NewYork>Black Well. Among them, Cave-in-Rock had high yield and the highest weighted correlation degree with ideal varieties, comprehensive performance was also the best. The weighted correlation degrees of Alamo and Kanlow were 0.711 and 0.654, and their biomass yield were 20.47 and 17.93 t·hm-2, respectively. Comprehensive evaluation showed that Cave-in-Rock, Alamo and Kanlow had better potential yield than the others in saline-alkali region. Black Well, NewYork, Trailblazer, Japan and Nebraska 28 had lower yield of biomass and photosynthetic characteristics, while the comprehensive performance of other varieties were medium level.

Key words: Panicum virgatum, photosynthetic characteristics, yield, grey correlation analysis

中图分类号: