中文摘要：

小麦是我国主要的粮食作物之一,及时了解小麦苗期生长状态对稳产增收有着重要的意义。为此,在综述叶面积指数、生物量、叶绿素及氮含量等与苗情相关指标的基础上,总结了不同指标的诊断监测进展,并对干旱和冻害等两种自然灾害环境影响下小麦的生长状态进行了描述。研究结果可为快速准确开展小麦苗情诊断提供依据。

英文摘要：

Wheat is one of the main food crops in China.It is important for stable income to inform the wheat seedling stage growth state in time .This paper summarized the diagnostic monitoring progress of different indexes by summarizing the leaf area index, biomass, chlorophyll and nitrogen content which related with seedlings’ indicators.And we de-scribed the growth state of wheat under the influence of the different natural disasters environment, like drought and cold. The above results could provide the basis for quick accurate diagnosis in wheat seedlings.