关键词: 消毒剂, 消毒剂, 灌溉, 根活性

Abstract: Lodging in crops is defined as a permanent displacement of the culms from their upright position, leading to yield loss when the combine fails to harvest the grain from the lodged plants. Lodging in crops is a complex problem because it is influenced by a large number of environmental factors and there are several different types of lodging.?Plant height, straw strength and level of fertility influence lodging. Typically, shorter varieties are more resistant to lodging, but strength of the straw allows many taller varieties to stand well.Lodging tends to be more severe at high nitrogen levels. Thus, no single trait, or group of traits, has proven to be generally reliable as an index of lodging resistance.It was necessary to collect quantitative information on the plant morphology and genetic studied.The aim of this work was to introduce the progress on how to find morphological traits that are correlated with lodging and could be used as indirect selection parameters,establish methods to assess lodging resistance independent of weather conditions.