| 单词 | leaf discoloration | 
| 释义 | > as lemmasleaf discoloration   leaf discoloration  n. ΚΠ 1880    Jrnl. Hort., Cottage Gardener & Home Farmer 14 Oct. 346/1  				This attempt to show that it is the action of the mycelium which causes the leaf-discoloration is quite worthless. 1969    S.-H. Ou  & C. T. Rivera in  Virus Dis. Rice Plant iii. 25  				The leaf discoloration varies from shades of yellow in certain varieties to shades of orange in others. 2001    Times 		(Nexis)	 14 Apr.  				This high-nitrogen formula boosts bushiness and growth, and helps prevent fruit drop, premature ripening and leaf discoloration. < as lemmas | 
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