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An albino corn plant with no chlorophyll (left) beside a normal plant (right) In botany , chlorosis is a condition in which leaves produce insufficient chlorophyll . As chlorophyll is responsible for the green color of leaves, chlorotic leaves are pale, yellow, or yellow-white.
Leaf sheath lesions are not surrounded by a yellow radiance, but rather a brown or dark purple radiance. [10] This dark brown or purple discoloration on leaf sheaths is also characteristic to northern corn leaf blight ( Exserohilum turcicum ), southern corn leaf blight ( Bipolaris maydis ), or northern corn leaf spot ( Bipolaris zeicola ).
Young leaves, may experience chlorotic spotting which may eventually turn into a mosaic or mottle pattern (“Maize Dwarf Mosaic Virus,” n.d.). Later in the growing season, the mosaic pattern may bleed into a general yellowing of the leaf and eventually areas of red streaks or blotches may appear if night time temperatures are consistently ...
This guide explains the most common reasons for peace lily leaves turning yellow and provides simple tips to help your plant recover. 1. Watering Stress. Overwatering and underwatering are, hands ...
Centaurea cyanus Scientific classification Kingdom: Plantae Clade: Tracheophytes Clade: Angiosperms Clade: Eudicots Clade: Asterids Order: Asterales Family: Asteraceae Genus: Centaurea Species: C. cyanus Binomial name Centaurea cyanus L. Centaurea cyanus (introduced species) near Peshastin, Chelan County, Washington Centaurea cyanus, commonly known as cornflower or bachelor's button, is an ...
Rust, common corn Puccinia sorghi: Rust, southern corn Puccinia polysora: Rust, tropical corn Physopella pallescens. Physopella zeae = Angiopsora zeae. Sclerotium ear rot Southern blight Athelia rolfsii: Seed rot-seedling blight Athelia rolfsii. Bipolaris sorokiniana Bipolaris zeicola = Helminthosporium carbonum Diplodia maydis Exserohilum ...
While the plants are weak and vulnerable, stalk rot fungi can further invade the corn plant. [9] The degree of multiplication of the bacteria is highly dependent on susceptibility of the cultivar. In most cases, the wilt phase occurs on seedlings, but for certain corn types (i.e. sweet corn), more mature plants can wilt.
Aster yellows is a chronic, systemic plant disease caused by several bacteria called phytoplasma. [1] The aster yellows phytoplasma (AYP) affects 300 species in 38 families of broad-leaf herbaceous plants, primarily in the aster family, and important cereal crops such as wheat and barley.