应用看叶诊断来指导棉花生产,是最直观、最简易有效的方法。水稻叶龄模式的研究成功,为生产实践已起到了一定的指导作用,棉花叶龄模式研究尚在探索之中。据此,我们在常规栽培之棉田,以中熟品种赣78—7为供试材料、按不同叶龄拔株取样,用体视显微镜通过植株解剖,拟探索棉花叶龄模式,以便为看叶诊断提供更准确的理论依据。现将初探结果综述如下:一、叶片的发育棉花主茎叶从叶原基突起直至衰老,历经五个发育进程,其示意如下:叶原基突起→叶原基分化(分化叶) The application of leaf diagnosis to guide cotton production, is the most intuitive, the most simple and effective method. The success of research on rice leaf age model has played a guiding role in production practice. The research on cotton leaf age model is still being explored. Based on this, we used the medium-maturing cultivar Gan 78-7 as tested materials in conventional cotton fields, and took samples from different leaf ages. Through plant anatomy with stereo microscope, we tried to explore cotton leaf age model, Diagnosis provides a more accurate theoretical basis. The preliminary results are summarized as follows: First, the development of leaves The main cotton leaf primordia from the protuberance until senescence, after five developmental processes, which are as follows: leaf primordia → leaf primordia differentiation (differentiated leaves)