不同蓝莓品种的叶片结构和气孔特性比较

Comparisons of Leaf Anatomical Structure and Stoma Characteristic Among Three Different Blueberry Varieties

选取3年生"蓝丰"、"北陆"、"美登"蓝莓品种为试验材料,采用石蜡切片法和"指甲油法"观察了3个蓝莓品种叶片解剖结构和气孔特性。结果表明:3个品种的叶片的角质层、表皮细胞、栅栏组织、海绵组织等组织厚度都存在着差异,其中"蓝丰"的角质层、表皮、栅栏组织、海绵组织厚度最大,"北陆"次之,"美登"最小;从叶片组织紧密度来看,"美登"的最大,"北陆"次之,"蓝丰"最小;栅海比参数比较中,"北陆"最大,"美登"次之,"蓝丰"最小;从蓝莓叶片气孔特性来看,"蓝丰"气孔长度和宽度最大,"北陆"次之,"美登"最小,而气孔的密度呈现相反的结果。

‘Bluecrop＇,‘Northland＇and‘Blomidon＇blueberry varieties were selected as experimental materials,the leaf anatomical structure and stoma characteristic of 3blueberry varieties were observed,in order to make clear the differences of leaf structure and stoma characteristic among different blueberry varieties.The results showed that the leaf anatomical structure of 3blueberry varieties were different from each other in thickness of cuticle,epidermis cells,palisade tissue and spongy tissue.‘Bluebecrop＇blueberry leaves had the maximum thickness of cuticle,epidemic cells,palisade tissue and spongy tissue,‘Northland＇took the second,‘Blomidon＇was the last,but‘Blomidon＇blueberry had the largest leaf tissue structure tense ratio（CTR）than‘Bluecrop＇and‘Northland＇.‘Bluecrop＇blueberry leaf had the biggest stoma,but the lowest stoma density,in contrast,‘Blomidon＇had the smallest stoma,but the greatest stoma density.