After plant infect with the virus, a photosynthetic rate of leaf of different leaf-age will lower.
植株感染病毒后，不同叶龄的叶片光合速率都会降低。
Cotton growers in Pakistan generally have a sound understanding of cotton production technology, but yields are limited due to the cotton leaf curl virus and mealy bug.
巴基斯坦棉花种植者对棉花生产技术有普遍而充分的理解，但由于棉花曲叶病毒和粉状病毒，产量有限。
应用推荐