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21 9 6 ;4CO2 i9 g ( v= ;T,i O9 g V9 = 3, oV. j<s M .:S j<v, 1996: 14- 44.10 .T = ! m4 |ICP? ;s J., 1989, 16( 1): 29- 33.11f:. v 3 M .:S j< S/, 1993:36- 45.12 #,:, ,.T CO2 g rT J. j<v, 2000, 31( 2): 196- 200.13 Peet M M , Huber S C, Pat terson D T. Acclimation tohigh CO2 in monoecious cucumbers J. Plant Physiol,1986, ( 80): 63- 67.14 Yelle S, Gosselin A, Trudel M J. Effect of atmosphericCO2 concentration and root-zone temperature on grow th,mineral nutrition and nitrate reductase activity ofgreenhouse tomato J. J Amer Soc Hort Sci, 1987, 112( 6): 1036- 1040.15 Porter M A, Grodzinski B. Grow th of bean in high CO2:effects on shoot mineral composition J . J PlantNutrition, 1989, ( 12): 129- 138.16 M adsen E. Effects of CO2 enrichment on grow th,development, fruit production and fruit quality of tomatoplant from a physiological view point J . Phytot ronics,1975, ( 111): 318- 310.17 , Tibbitts T W . iHq/ . =x i1= i1“ J., 1997, 39( 12): 1118- 1125.101 9 < #: CO2 g( ! ls YEffects of CO2 enrichment on absorption and distributionof mineral elements in cucumber seedlingsWei Min , Yin Yandong , Wang Xiufeng , Xing Yuxian(Department of Horticulture Science and Engineering , Shandong Agricultural University , Tai 'an 271018, China )Abstract: Soil-cultured and sand-cultured cucumber seedlings w ere used in the experiments to study effects ofCO2 enrichment on absorption and distribution of mineral elem ents. The results show ed that: CO2 enrichment for3 h every morning or 6 h every day at 1100 100L /L m ade the content of m ost mineral nutrients in differentorgans of cucum ber seedling decreased; Prolonging CO2enrich ment tim e led to the m uch low er content. How ever,as a result of CO2 enrichm ent, th e absorption ability of cucumber seedling w as strengthened and the total amountsof mineral nutrients absorbed increased, the m ore the enrichm ent tim e, the more the absorption amounts w ere. Itis suggested that m ore mineral nutrients should be applied when CO2 enrichment is carried.Key words: CO2 enrichm ent; cucumber; mineral element102 j<2005 M
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