摘要
本文详细地研究了番红花的形态和解剖特征,并认为番红花具有收缩根、气孔窝和叶稍内卷、气孔器下陷等特点是对其原产地冬季干冷恶劣气候的适应。番红花在贵阳地区栽培有严重的退化现象,种球逐年变小,其主要原因是冬、春两季日照不足,昼夜温差不大,不利于叶片光合作用的进行和球茎中营养物质的积累。
Crocus sativus is a overwintering plant. In genral, it is planted in Oct. of current year and harvested in May of next year. In this paper,we have studied the morphology and anatomy of Crocus in detail. we considered that the constractile root, stomatal crypt and the sunken stomata are the adaptation to the dry and cold wintering tempest of its native habitat. Crocus sativus which cultivated in Guiyang region has seriously degenerative phenomenon,the corm becomes smaller year after year,the main reason is that the sunshine duration in winter and spring are not enough,and diurnal temperature difference is not enough too. They both all are unfavourable to the photosynthesis of the leaves and the nutrient accumulation of the corms.
基金
贵州省科学技术基金资助项目
关键词
番红花
形态
解剖
Crocus sativus
morphological and anatomical characters
corm
contractile root
stomatal crypt
sunken stomata