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对浙江省东南部台州、温州、宁波及绍兴4个地区25份杨梅地方品种材料叶片的气孔特性进行研究,测定了气孔密度、气孔面积、气孔长、短轴和气孔器长、短轴。结果表明:所有材料气孔均属于平行型;气孔密度在500～1200个/mm2之间,主栽品种东魁、荸荠和丁岙梅气孔密度偏小;气孔面积从40～80μm2不等,以50μm2较为集中;气孔器长、短轴以变异1号最大,温州土梅最小;气孔长、短轴的变化规律为长轴>短轴。利用重心距离法对气孔密度、气孔面积、气孔大小和气孔器大小进行聚类分析,从距离0.5处进行分类,可分为5类。聚类分析表明:气孔的相似度在某种程度上可以作为区别品种的依据,但要精确地研究它们之间的遗传关系,还需与分子生物学、形态学等综合手段相结合予以鉴定。
The stomatal characteristics of 25 species of bayberry cultivars in four regions of Taizhou, Wenzhou, Ningbo and Shaoxing in southeastern Zhejiang Province were studied. Stomatal density, stoma area, stomatal length, short axis and stomatal length were measured. The results showed that stomata of all materials belonged to parallel type. Stomatal density ranged from 500 to 1200 per mm2. The stomatal densities of Dongkui, water chestnut and Dingjuan plum were small. Stomatal area ranged from 40 ~ 80μm2 to 50μm2 The stomatal apparatus had the largest variation of stomatal length and minor axis with Variation No.1 and the smallest soil temperature in Wenzhou. The variation of stomatal length and minor axis was the major axis and minor axis. The centroid distance method was used to cluster stomatal density, stomatal area, stomatal size and stomatal size, and classified from 0.5 to 5 categories. Cluster analysis showed that stomatal similarity can be used as a basis for discriminating breeds to some extent. However, to accurately study the genetic relationship between stomatal and stomata, it needs to be combined with comprehensive methods such as molecular biology and morphology.