Older leaves first affected with bright yellow-green or yellow interveinal chlorosis, inrolling of margins, wilting, bleaching and withering before dehiscing prematurely; youngest leaves and growing point persist for longest period.
Older leaves first affected with bright yellow-green or yellow interveinal chlorosis, inrolling of margins, wilting, bleaching and withering before dehiscing prematurely; youngest leaves and growing point persist for longest period.
老叶首先脉间失绿呈嫩黄色或黄色，边缘不卷曲，在过早地裂开前白化并干枯，心叶和生长点能持续最长地周期。