浙江农业学报 ›› 2025, Vol. 37 ›› Issue (10): 2077-2086.DOI: 10.3969/j.issn.1004-1524.20250197

• 园艺科学 • 上一篇    下一篇

光质和补光时间对南方红豆杉生长发育的影响

李文杨1(), 刘洋1, 李勇2, 邱雯雯3, 王辉1,*()   

  1. 1.信阳农林学院 林学院,信阳市林木遗传育种重点实验室,河南 信阳 464000
    2.罗山县林业局,河南 罗山 464299
    3.息县林业局 林业技术推广站,河南 息县 464399
  • 收稿日期:2025-03-13 出版日期:2025-10-25 发布日期:2025-11-13
  • 作者简介:李文杨(1984—),女,河南内乡人,硕士,副教授,主要从事经济林丰产栽培与逆境生理研究。E-mail:wylee126@126.com
  • 通讯作者: 王辉,E-mail:531351755@qq.com
  • 基金资助:
    信阳农林学院科技创新团队建设项目(XNKJTD-004);信阳市林木遗传育种重点实验室课题(901141)

Effect of light quality and supplementary lighting duaration on growth and development of Taxus chinensis var. mairei

LI Wenyang1(), LIU Yang1, LI Yong2, QIU Wenwen3, WANG Hui1,*()   

  1. 1. Key Laboratory of Tree Genetics and Breeding in Xinyang, College of Forestry, Xinyang Agriculture and Forestry University, Xinyang 464000, Henan, China
    2. Luoshan Forestry Bureau, Luoshan 464299, Henan, China
    3. Forestry Technology Extension Station, Xixian Forestry Bureau, Xixian 464399, Henan, China
  • Received:2025-03-13 Online:2025-10-25 Published:2025-11-13

摘要: 为寻找红豆杉设施栽培最适光环境,该研究以南方红豆杉为试验材料,设置3种光质——红光(R)、红光和蓝光按2∶1的比例混合(R2B)、红光和蓝光按1∶1的比例混合(RB),以及3种补光时间(4、6、8 h·d-1),以自然光照为对照(CK),测定植株的株高、地径,叶片的光合色素含量、颜色参数、超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量、过氧化氢酶(CAT)活性。结果表明,至71 d时:R补光8 h处理的植株株高最高,RB补光6 h处理的植株地径最大,分别比CK显著(p<0.05)提高了25.50%和74.17%;R补光8 h的叶片类胡萝卜素含量最高,R补光4 h的叶片叶绿素b和总叶绿素含量最高,这三者均显著高于CK;R补光8 h较CK显著降低了叶片的明度值(L*)、黄蓝色度值(b*),显著提高了红绿色度值(a*);R补光4 h的叶片SOD活性最高,显著高于CK。基于隶属度判断,在该试验条件下,R补光8 h在秋季促进南方红豆杉生长和提高抗逆能力的效果最佳。

关键词: 南方红豆杉, 发光二极管, 光质, 补光时间, 生长发育

Abstract:

In order to find the optimal light environment for facility cultivation of Taxus wallichiana var. mairei, three light qualities, including pure red light (R), combinatin of red and blue light at the ratio of 2∶1 (R2B) and 1∶1 (RB) were set, as well as three supplementary lighting durations (4, 6, 8 h·d-1), with natural light as the control (CK). The plant height, ground diameter, photosynthetic pigments content, color parameters, superoxide dismutase (SOD) activity, malondialdehyde (MDA) content, and catalase (CAT) activity of the leaves were measured. The results showed that on the 71st day of cultivation, the plant height was the highest under 8 h R treatment, and the ground diameter was the largest under the 6 h RB treatment, which were significantly (p<0.05) increased by 25.50% and 74.17% than those of CK, respectively. On the 71st day of cultivation, the content of carotenoid in the leaves was the highest under the 8 h R treatment, and the contents of chlorophyll b and total chlorophyll in the leaves were the highest under the 4 h R treatment, which were all significantly higher than those of CK. Compared with the CK on the 71st day of cultivation, the 8 h R treatment significantly reduced the lightness value (L*) and the yellowness value (b*) of leaves, yet significantly increased the redness value (a*). The SOD activity in the leaves was the highest under the 4 h R treatment, which was significantly higher than that of CK. Under this experiment condition, the 8 h R treatment exhibited the best performance on promoting growth and enhancing resistance to stress of Taxus wallichiana var. mairei, which was revealed by the comprehensive membership degree.

Key words: Taxus chinensis var. mairei, light emitting diode (LED), light quality, supplementary lighting duration, growth and development

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