棉花旱涝抗逆性能的临界指标探讨

Study on Critical Index of Droughts and Waterlogging Resisting Performance of Cotton

旱涝灾害是制约棉花生长发育的重要因素。国内外对棉花旱涝为害的研究不少，但对棉花旱涝灾害临界指标的定量研究不多。从生物学特性方面研究棉花旱涝的为害和影响，探讨受旱受涝灾害的临界指标，从而为科学灌溉和排水提供依据，指导生产实践。

The droughts and waterlogging is an important factor to constrain cotton growing and developing. The droughts and waterlogging damage and effect of cotton have been studied from biological properties in this paper. The critical index of droughts and waterlogging damaged cotton has also been produced for building a base of scientific irrigation and drainage and guiding practice.