Chloroplast Number in Leaves of Normal Wheat Plants and Those Infested with Hessian Fly or Treated with Maleic Hydrazide12

Publisher Website
Google Scholar
Abstract
Chloroplasts were counted in leaves of normal wheat plants, those infested with hessian fly(Phytophaga destructor (Say)), and those treated with maleic hydrazide. The chloroplast number decreased in the outer leaves and increased in the inner leaves of the treated plants. In the hessian fly infested wheat plants, the chloroplast counts increased in both inner and outer leaves over those of the normal plants. It appeared that the dark-green color of the inner leaves of hessian fly infested wheat was due to increased chloroplast numbers. It appeared further that the dark-green color of the outer leaves of maleic hydrazide treated plants was due to a greater concentration of chlorophyll per chloroplast.