Effect on the growth and photosynthetic traits of four kinds of greenbelt plants cultivated using reclaimed water

Abstract

Abstract: We studied the effects of reclaimed water on plant growth with the aim of extending the utilization of reclaimed water in Shenzhen. Growth, root development and photosynthetic traits were determined for four kinds of greenbelt plants, Axonopus affonis, Zoysia pacifica, Wedelia trilobata, and Duranta repens, cultured in reclaimed water and in cleaned water (CK). The heights of the greenbelt plants cultivated in reclaimed water for 30 d was lower than those cultivated in cleaned water (CK) but the root length was longer for up to 21 d and shorter after this. Root vigor was also less than those in the CK. However, there was no significant difference(P>0.05)between the plants cultivated in reclaimed water and cleaned water (CK). The chlorophyll content, initial fluorescence (F₀) and maximal fluorescence (F_m) of A. affonis and W. trilobata cultivated in reclaimed water for 30 d were greater than those under CK and F_v/F_m was less. However, the indexes of Z. pacifica showed a reverse change, possibly attributable to its biological traits. There was no significant difference between plants cultivated in reclaimed water and in cleaned water (CK) Although there were some negative effects of reclaimed water on the morphological, physiological modification, and photosynthetic traits of these plants.

CLC Number:

Q945.11

WANG Qi, WANG You-guo, SHI Chun-juan, SUN Ji-xiong, TAN Yi-fan. Effect on the growth and photosynthetic traits of four kinds of greenbelt plants cultivated using reclaimed water[J]. Acta Prataculturae Sinica, 2010, 19(6): 106-113.

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