Details

Autor(en) / Beteiligte

• Liang, Guoting
• Liu, Junhui
• Zhang, Jingmin
• Guo, Jing

Titel

Effects of Drought Stress on Photosynthetic and Physiological Parameters of Tomato

Ist Teil von

• Journal of the American Society for Horticultural Science, 2020-01, Vol.145 (1), p.12-17

Ort / Verlag

American Society for Horticultural Science (ASHS)

Erscheinungsjahr

2020

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• Drought has become an important factor limiting crop yields in China. As an important greenhouse horticultural crop in China, the research of tomato ( Solanum lycopersicum L. cv. Jinpeng No.10) is of great theoretical and practical significance. In the study, four different relative soil moisture contents (74% to 80%, 55% to 61%, 47% to 52%, and 25% to 30%) were used to induce drought stress. We investigated changes in photosynthetic gas exchange, chlorophyll fluorescence, and other related physiological parameters in response to different relative soil moisture contents. Drought inhibited the photosynthesis of tomato significantly, as shown by a clear decline in the net photosynthetic rate. Our results indicated stomatal limitation and nonstomatal limitation were responsible for the photosynthesis reduction.