Wheat Diseases and Pests - Wheat Doctor - CIMMYT
Wheat Diseases and Pests - Wheat Doctor - CIMMYT
Wheat Diseases and Pests - Wheat Doctor - CIMMYT
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Frost Damage<br />
Symptoms: Chlorosis of affected tissues is the<br />
common symptom. A light frost may only affect<br />
new tissue, resulting in a b<strong>and</strong>ing or striping on<br />
the leaves or spikes. A severe frost will kill<br />
affected tissue, which takes on a bleached white<br />
appearance (107). Sterility can result from frost<br />
occurring at flowering (108). The epidermis of the<br />
peduncle often becomes separated from<br />
underlying tissue.<br />
Development: The freezing of plant tissue can<br />
occur at any stage of the crop cycle. Young or<br />
newly emerged tissue is the most susceptible to<br />
damage. Flowering parts are particularly sensitive.<br />
HostsIDistribution: All plants can suffer frost<br />
damage, <strong>and</strong> frosts can occur in most temperate<br />
wheat-growing regions.<br />
Importance: Frost can be a serious problem if it<br />
occurs late in the crop cycle.
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