Interactions among Flooding, Freezing, and Ice Encasement in Winter Wheat
نویسندگان
چکیده
منابع مشابه
Interactions among Flooding, Freezing, and Ice Encasement in Winter Wheat.
Exposure of winter wheat (Triticum aestivum L.) to various combinations of flooding and freezing stresses induces much greater damage than the individual stresses. Cold-hardened plants flooded for 1 week or exposed to -6 degrees C for 1 week show 100% survival, while survival of plants exposed to both stresses simultaneously is reduced by 20 to 30%, and cold hardiness decreases by several degre...
متن کاملMetabolic and Ultrastructural Changes in Winter Wheat during Ice Encasement Under Field Conditions.
The effect of ice encasement on the physiological, metabolic, and ultrastructural properties of winter wheat (Triticum aestivum L.) grown under field conditions was examined by artificially encasing winter wheat in ice during early winter. Cold hardiness and survival of ice-encased seedlings declined less rapidly in Kharkov, a cold-hardy cultivar than in Fredrick, a less hardy cultivar. Ethanol...
متن کاملMetabolic acclimation to hypoxia in winter cereals : low temperature flooding increases adenylates and survival in ice encasement.
Cold hardened seedlings of winter wheat (Triticum aestivum L. em Thell) show an hypoxic hardening response: an exposure to low temperature flooding increases the tolerance of plants to a subsequent ice encasement exposure. Seedlings of winter barley (Hordeum vulgare L.) do not show such a response in similar experimental conditions. During ice encasement, there are general declines in adenylate...
متن کاملThe Response of Winter Wheat to Flooding
The effect of flooding can be a serious problem for wheat farmers, even at dry land condition. Amount of flooding damage depends on duration flooding, developmental stage, wheat type and variety. Therefore as a factorial experiment in randomized complete design based on winter bread wheat cultivars (Pishtaz, Marvdasht, Shiraz, Zarin, Shahriar, C-81-4, Sardari, Agosta seed, FGS and Azar2) at sta...
متن کاملChanges in Membrane Lipids during Ice Encasement
The physical properties and chemical composition of microsomal membranes were examined during a 7 day period of ice encasement in crown tissue of winter wheat (Triicum aestivum L. cv Norstar). Membrane damage, detected as an increase in microviscosity and electrolyte leakage, began between 1 and 3 days of icing, and was associated with a reduction in the recovery of microsomal membranes from st...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1983
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.72.2.303