2013•Guizhou nongye kexueRequires access
Change of Tissue Structure in Different Maturity of Yunyan 85
Peng Jiantao
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Abstract
In order to study the tissue of different position leaves from lower,middle and upper stalk positions of flue-cured tobacco of Yunyan 85,paraffin sections and electric microscope were used to clarify the changes in the tobacco leaf histological index n different maturity,The results showed that the identity of tobacco gradually thinning,the thickness of leaf,the epicuticle thickness,the lower epidermis thickness,the thickness ratio of palisade to spongy tissue(S/P),the thickness ratio of palisade to the thickness of leaf continuously reduced,the thickness of spongy tissues,the thickness ratio of spongy to the thickness of leaf increased gradually.