Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology ›› 2002, Vol. ›› Issue (4): 429-432.

Previous Articles     Next Articles

Ecophysiological effects of CO2 enrichment on bottle gour in plastic house

ZHU Shidong, XU Wenjuan   

  1. Department of Horticulture, Anhui Agricultural University, Hefei 230036
  • Received:2002-01-09 Revised:2002-03-13 Online:2002-04-15

Abstract: In vegetable growing under protection, lack of carbon dioxide is one of the most important factors limiting photosynthesis. The application of 600~1200 μmol·mol-1 CO2 in the plastic house increased photosyntheitc rates and ratio of C/N, promoted both vegetative and reproductive growth of bottle gourd plants. Plant height, stem diameter, leaf thickness and leaf area increased by 3.90~19.48%, 11.58~27.37%, 38.46~69.23% and 26.09~49.38%, respectively. Average single fruit weight and yield were 4.05~19.62% and 8.65~19.47% higher than that in normal air. Primary female flower position was lowered by 2.6~4.0. Net photosyntheitc rate and the carboxylase activity of RuBP were greatest under CO2 1000μmol· mol-1. The optimal concentration of CO2 applied to bottle gourd in spring was about 1000 μmol·mol-1.

CLC Number: