| 单词 | speckled yellows |
| 释义 | > as lemmasspeckled yellows speckled yellows n. a disease of sugar beet characterized by distorted and discoloured leaves, caused by a deficiency of manganese. ΘΚΠ the world > plants > disease or injury > [noun] > type of disease > deficiency diseases > associated with crop or food plants greenback1926 grey leaf1928 marsh spot1931 tea yellows1931 speckled yellows1938 grey speck1947 1938 Brit. Sugar Beet Rev. XII. 77/2 Fields affected with ‘Speckled Yellows’ can be recognised from a considerable distance. 1959 New Biol. 30 91 Diseases such as ‘grey speck’ of oats, ‘speckled yellows’ of sugar beet and ‘marsh spot’ of peas are caused by the low availability of manganese in the soil. 1960 Farmer & Stockbreeder 15 Mar. 149/2 (caption) Sugar Beet leaf—illustrating deficiency of manganese (‘speckled yellows’). < as lemmas |
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