Abstract: Photosynthetic characteristics of 7 grapevine varieties were studied in Forcing-cultivation and Rain-shelter-cultivation ( F-C & R-S-C) greenhouse by using portable photosynthetic mensurate system CIR-
AS-1. The results showed that: ①The value of Pn, LSP, LCP of grapevine varietieswere (5.74 ±4.33) -(7.87 ±5.85) ( is the mean of 7 data point in a day) , 494 - 1 110, 9.6 - 51.5 μmol·m^{- 2} ·s^{- 1} respectively during the F-C period, and (3.85 ±1.82) - ( 5.62 ±3.23) , 806 - 1 407, 16.5 - 33.5 μmol·m^-2 ·s^-1 respectively during the R-S-C period; The value of CSP, CCP of grapevine varieties were 717 - 1 500, 60.6 - 88.0 μL·L ^-1 respectively during the F-C period, and 944 - 1 601, 14.1 - 59.1μL ·L ^-1 respectively during the R-S-C period; ②There were higher value of diurnalmean of Pn, diurnal peak of Pn, diurnal integral of Pn, Gs, Tr, LSP, CSP and lower value of AQY, CE, LCP, CCP during the F-C period than those during the R-S-C period. WUE ofmost varieties are higher during the R-S-C period; ③Comparison of photosynthetic parameters before-mentioned, it showed that‘Dawn Seedless’,‘Rizamat’and ‘Zhengzhou Zaoyu’varieties had higher value of diurnal mean of Pn, WUE, AQY, CE, LSP, CSP and lower value of LCP, CCP than those of other varieties, thereby more adap ted to Forcing-cultivation and Rain-shelter-cultivation greenhouse cultivation.

Key words: Grapevine, Variety, Forcing-cultivation and Rain-shelter-cultivation, Photosynthetic characteristics