Study on leaf anatomical structure and photosynthetic characteristics of two bamboo species in spring greenhouse

doi:10.14088/j.cnki.issn0439-8114.2020.20.024

Abstract

Abstract: The paraffin sections of B ambusa ventricosa kimmeiand Bambusa ventricosa McClure were prepared by paraffin embedding method and their structures were observed by microscopy.The photosynthetic characteristics and the optical response parameters of two kinds of bamboo plants were measured by CIRAS-3 photosynthesis measuring instrument.The results showed that there were differences in anatomical structure and photosynthetic characteristics of Bambusa ventricosa kimmei and Bambusa ventricosa McClure.The thickness of the upper,lower epidermis,palisade tissue and sponge tissue of the leaves of Bambusa ventricosa McClure were larger than that of Bambusa ventricosa kimmei.After the comparison of five photosynthetic characteristics,the net photosynthetic rate,stomatal conductance and water use efficiency of Bambusa ventricosa McClure were stronger than that of Bambusa ventricosa kimmei,but the transpiration rate of the former was lower than that of the latter.From the light response curves of the two bamboo plants,it was found that the utilization of the Bambusa ventricosa kimmei was not as good as that of the weak light,and the photosynthesis was more susceptible to inhibition in the high light environment.

Key words: bamboo plants, Bambusa ventricosa kimmei, Bambusa ventricosa McClure, anatomical structure, photosynthetic characteristics, light response

CLC Number:

S795

ZHANG Jing-run, WANG Bin-cun. Study on leaf anatomical structure and photosynthetic characteristics of two bamboo species in spring greenhouse[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(20): 108-111.

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