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Oat leaf infected with crown rust. Oats can outcompete many weeds, as they grow thickly (with many leafy shoots) and vigorously, but are still subject to some broadleaf weeds. Control can be by herbicides, or by integrated pest management with measures such as sowing seed that is free of weeds. [13] Oats are relatively free from diseases.
Rhopalosiphum maidis (corn leaf aphids) on Zea mays (maize) Under enhanced CO 2 conditions, the growth rate and reproduction of R. maidis on barley were significantly decreased. [ 14 ] Volatiles of barley grown under enhanced CO 2 were also less attractive than those from plants grown under atmospheric CO 2 . [ 15 ]
Coleoptile is the pointed protective sheath covering the emerging shoot in monocotyledons such as grasses in which few leaf primordia and shoot apex of monocot embryo remain enclosed. The coleoptile protects the first leaf as well as the growing stem in seedlings and eventually, allows the first leaf to emerge. [ 1 ]
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Those of economic importance include diseases of the leaf, smuts such as corn smut, ear rots and stalk rots. [86] Northern corn leaf blight damages maize throughout its range, whereas banded leaf and sheath blight is a problem in Asia. [87] [88] Some fungal diseases of maize produce potentially dangerous mycotoxins such as aflatoxin. [60]
(middle) sorghum, maize, oats (bottom) millet, wheat, rye, triticale. A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize. Edible grains from other plant families, such as buckwheat and quinoa, are pseudocereals.
(middle) sorghum, maize, oats (bottom) millet, wheat, rye, triticale. A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize. Edible grains from other plant families, such as buckwheat and quinoa, are pseudocereals.
Corn smut It grows in the ears of the crop and converts the kernels into black, powdery fungal tissues. The smut, called huitlacoche by Mexicans and formerly called cuitlacoche by the Aztecs , is a delicacy in Mexico sold in the markets for use in various dishes including soups, stews, steak sauces, and crepes, while in other parts of the world ...