关键词: 天然彩色棉, 光合色素

Abstract: Based on the analysis of the content of Photothetic-chromosome in Nature-coloered cotton leaf by numbers during the different period, this paper claims that the dynamic trends of chlorophyll-content including a and b and(a+b) in nature-coloured cotton leaf is the same as the white upland-cotton. And the content of chlorophyll including a and b and(a+b) in Nature-coloered cotton leaf is lower than the white upland-cotton excludes the germinal period. It also indicates that there are differences about the content of chlorophyll between brown-coloured cotton and green-coloured cotton.

Key words: NATURE-COLOURED COTTON, PHOTOSYNTHETIC-CHROSOME