A new film forming material, which reduces water vapour conductance more than CO2 fixation in several horticultural crops
| Autor: | Y. Magril, U. Kedem, Z. Plaut |
|---|---|
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | The Journal of Horticultural Science and Biotechnology. 79:528-532 |
| ISSN: | 2380-4084 1462-0316 |
| DOI: | 10.1080/14620316.2004.11511800 |
| Popis: | SummaryWater vapour conductance and CO2 fixation rates were simultaneously measured in leaves of pepper, tomato, apple, mallow, and honeysuckle plants sprayed with a new acrylic type film-forming material distributed in Israel as “Magen 2001”. Plants were fully supplied with water and not exposed to water stress from before spraying until the time of measurement. Water vapour conductance was decreased significantly more than CO2 fixation in all tested species, except in one cultivar of apple in which neither water vapour conductance and CO2 fixation rates were affected. The material was found to be fully active for about 30 d after application, and its efficacy started to diminish 36 d after application. The relationship between CO2 fixation and water vapour conductance over the entire range of conductances was found to be exponential with R2 values in the range of 0.732—0.858. The much smaller change in CO2 fixation as compared with water vapour conductance at high conductances suggests that mesophyll co... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|