Study on Chicory's Photosynthesis and Transpiration under Different Water Treatments in Beijing

doi:10.3321/j.issn:1000-7091.2005.02.017

Abstract

Abstract: According to the climate of Beijing, three water treatments were given to the chicory: sufficient soil water treatment, middling drought treatment, drought treatment. Study on the changes of day photosynthetic rat and transpiration rat in three development stages, which includes leaf stage, cauline stage and bud stage. There is nooning phenomenon in chicory. Its net photosynthetic rat (Pn) of leaf climbs up to the peak value in the leaf stage, then goes down, and rises a little in the stage of budding. As far as transpiration rat (Tr) is concerned, the result is: bud stage cauline stage leaf stage. Low soil moisture can affect Pn and Tr, and leads to nooning phenomenon happen easier. There is quadratic linear relationship between Pn and Tr.

Key words: Chicory, Drought, Photosynthesis, Transpiration

CLC Number:

S66.2

ZHAO Feng-hua, CHEN Fu. Study on Chicory's Photosynthesis and Transpiration under Different Water Treatments in Beijing[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(2): 63-65. doi: 10.3321/j.issn:1000-7091.2005.02.017.

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