Ethylenediurea reduces grain chalkiness in hybrid rice cultivars under ambient levels of surface ozone in China.

ABSTRACT: High concentration of tropospheric ozone (O₃) causes crop yield losses, which could be reduced by foliar application of ethylenediurea (EDU). Rice grain appearance is a major quality trait that determines the milling quality, white rice productivity and the market value. Grain chalkiness is one of the common defects that deteriorate the grain appearance in rice due to its negative effects on palatability and milling yield. Whether EDU could reduce grain chalkiness in rice which was usually increased by high concentration of O₃ is not clarified. We report the grain chalkiness in 19 rice cultivars (CVs) of three types: indica (6 CVs), japonica (5 CVs) and hybrids (8 CVs), observed in an EDU application experiment in the field in China. The ambient O₃ level as

SUBMITTER: Zhang G 

PROVIDER: S-EPMC9479492 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature