Diurnal Variation in Transport and Use of Intracellular Leaf Water and Related Photosynthesis in Three Karst Plants

نویسندگان

چکیده

Except for transpired water, the intracellular water stored in leaves accounts only 1–3% of absorbed by roots. Understanding transport and use, as well related photosynthetic response, helps with determining plant status improving revegetation efficiency fragile karst habitats. In this study, we conducted experiments on 8 year old naturally growing plants Coriaria nepalensis Wall., Broussonetia papyrifera (L.) Vent., Elaeocarpus decipiens Hemsl. areas. We determined diurnal variations leaf electrophysiology, potential, gas exchange, chlorophyll fluorescence parameters. The results indicated that C. maintained a high rate, root uptake ability water-holding capacity (LIWHC). stomata quickly closed to conserve within cells protect structure. B. stable rate (LIWTR), was increased increasing water-use (LIWUE). also its photosynthesis efficiently using when LIWHC increased. inter- E. remained stable, which could be attributed leathery capacity. low stable. Compared photosynthesis, transpiration, instantaneous (WUEi) pattern plants, exhibited WUEi, whereas presented WUEi. Plants regions change their use regulate performance, differs among different species.

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ژورنال

عنوان ژورنال: Agronomy

سال: 2022

ISSN: ['2156-3276', '0065-4663']

DOI: https://doi.org/10.3390/agronomy12112758