Subtropical Plant Science >

2011 , Vol. 40 >Issue 01: 5 - 8

DOI: https://doi.org/10.3969/j.issn.1009-7791.2011.01.002

Effects of Different Substrates and Growth Regulators on Photosynthesis and Water Use Efficiency of Artocarpus lingnanensis

  • CHEN Xiang ,
  • LU Yao-dong ,
  • KE Huan ,
  • TIAN Xue-qin ,
  • ZHANG Xue-ping ,
  • TAN Jia-de
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  • Foshan Institute of Forest Science, Foshan 528222, Guangdong China

Received date: 2010-08-16

  Online published: 2011-03-10

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Abstract

The effects of different substrates and growth regulators on photosynthesis and water use efficiency (WUE) of Artocarpus lingnanensis were studied in this paper.The results showed that net photosynthetic rate (Pn), transpiration rate (Tr), WUE of A.lingnanensis cultivated in improvement substrate (S2) with appropriate IBA and NAA were enhanced.The assimilation products of A. lingnanensis were remarkable enhanced in S2 compared with in S1, and Pn, stomatal conductance (Gs), Tr, WUE and chlorophyll b (CHLb) were also significant raised;Pn, WUE, total chlorophyll (TCHL), chlorophyll a (CHLa), ChLb of treatment with appropriate IBA and NAA were significantly higher than that of CK and IBA treatment.The results indicated that S2 with appropriate IBA and NAA was the best treatment of to improve photosynthesis and assimilation of A. lingnanensis.

Key words： substrate; growth regulator; physiological characteristics; Artocarpus lingnanensis

Cite this article

CHEN Xiang , LU Yao-dong , KE Huan , TIAN Xue-qin , ZHANG Xue-ping , TAN Jia-de . Effects of Different Substrates and Growth Regulators on Photosynthesis and Water Use Efficiency of Artocarpus lingnanensis[J]. Subtropical Plant Science, 2011 , 40(01) : 5 -8 . DOI: 10.3969/j.issn.1009-7791.2011.01.002

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