叶龄与叶位对鸢尾叶片微结构的影响

doi:10.19640/j.cnki.jtau.2023.05.002

Journal of Tianjin Agricultural University ›› 2023, Vol. 30 ›› Issue (5): 6-10.doi: 10.19640/j.cnki.jtau.2023.05.002

• Researches and Scientific Notes • Previous Articles Next Articles

Effects of leaf age and leaf position on leaf microstructure of Iris

Chai Xuxu, Bai Yanjiao, Weinila·Tuohetisun, Sun Xiaoling^{Corresponding Author}

College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China

Received:2022-09-02 Online:2023-10-31 Published:2023-12-22

Abstract

Abstract: Plant can adjust leaf microstructure to adapt to different environment. Here, we studied leaf vasculature and stomatal characteristics of Iris at different leaf age and leaf position. The results showed that vascular density and adaxial/abaxial stomatal density in newly developed leaves was higher than in young and mature leaves, whereas stomatal size was smaller. From leaf base to leaf tip, adaxial/abaxial stomatal density, longitudinal/transverse vein density, and total vein density gradually increased, whereas adaxial/ abaxial stomatal size and areolar area gradually decreased. It is concluded that metabolism is faster in newly developed leaves, and compared to leaf base and leaf tip, the middle part of leaf blade is more representative for the state of the whole leaf.

Key words: Iris, leaf age, leaf position, vein network structure, stoma

CLC Number:

S682.1

Chai Xuxu, Bai Yanjiao, Weinila·Tuohetisun, Sun Xiaoling. Effects of leaf age and leaf position on leaf microstructure of Iris[J]. Journal of Tianjin Agricultural University, 2023, 30(5): 6-10.

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Effects of leaf age and leaf position on leaf microstructure of Iris

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