摘要： 利用陆地棉全株有色素腺体与无色素腺体的品种杂交而获得的6世代群体,研究了植株13个器官色素腺体的分布.基于器官上色素腺体的有无,发现植株色素腺体的空间分布具有10种模式.每一模式代表着植株色素腺体密度的特定等级,不同模式所包含的着生色素腺体器官的种类和数量不同.同一模式中各器官的色素腺体密度与其群体平均密度值的差亦不同,据此,作者提出了色素腺体的早生器官、迟生器官、同生器官和缓生器官的概念,并运用空间分布模式,为在实践中选样或保留理想模式提出了更为可靠的方法.

关键词: 陆地棉, 色素腺体, 空间分布模式, 器官

Abstract: The experiment was conducted with six generation populations derived from crosses between two glanded upland cotton varieties and two glandless ones. The distribution of pigment glands on thirteen organs of the plant was studied, based on whether a plant part was glanded or glandless, ten spatial distribution models of pigment glands were found. The grades of pigment glands densities on whole plant of one model were distinguished from another, and the kinds and numbers of glanded organs contained in various models were varying. The differences between pigment glands densities on variour oergans of the same models and the average values of their population densities were differen. On these grounds four new concepts of priorly developed organs, subsequently developed organs, synchronously developed organs and postponably reproducted organs were put forward. Based on the spatial distribution models, a more reliable methed to select or retain the ideal types in the glandless cotton breeding had been established.

Key words: Upland cotton, Pigment gland, Spatial distribution model, Organ