منابع مشابه
Photosynthetic and Water Relations in Orange Plants with Cvc
Plants with citrus variegated chlorosis (CVC), a disease caused by the xylem-limited bacteria Xylella fastidiosa, have leaves with water deficiency symptoms and are associated with decreases on the net photosynthesis and transpiration rates. Using healthy and CVC-affected ‘Pêra’ sweet orange plants on ‘Rangpur’ lime rootstock, the leaf gas exchange variables were measured with an open-gas porta...
متن کاملought stress in plants: A review on water relations
term stress is used, most often subjectively, with various meanings, the physiological inition, and appropriate term as responses in different situations. The flexibility of normal tabolism allows the development of responses to environmental changes which fluctuate ularly and predictable over daily and seasonal cycles. Thus every deviation of a factor its optimum does not necessarily result in...
متن کاملStomatal behavior and water relations of waterlogged tomato plants.
The effects of waterlogging the soil on leaf water potential, leaf epidermal conductance, transpiration, root conductance to water flow, and petiole epinasty have been examined in the tomato (Lycopersicon esculentum Mill.). Stomatal conductance and transpiration are reduced by 30% to 40% after approximately 24 hours of soil flooding. This is not due to a transient water deficit, as leaf water p...
متن کاملWater relations, pigment stabilization, photosynthetic abilities and growth improvement in salt stressed rice plants treated with exogenous potassium nitrate application
Potassium is a major nutrient which may play an important role in many processes such as ion homeostasis in plant cells and osmotic adjustment of guard cells during stomatal opening and closing. Pathumthani 1 (PT1) rice has been reported as being a salt sensitive cultivar and has been selected as a model plant in this study to investigate the possibility of improving the osmotic potential, pigm...
متن کاملWater relations of plants in the field: some comments on the measurement of selected parameters
Methods for the analysis of water status and transport in the soil-plant-atmosphere continuum are briefly enumerated, with some personal comments on their reliability when used on plants growing in the field. These methods have provided us with a coherent system of data essentially free from major contradictions to the cohesion theory of water transport. It is shown that recent attempts at repl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1969
ISSN: 0028-0836,1476-4687
DOI: 10.1038/221496b0