【摘要】 以盆栽扁桃(AmygdaluscommunisL.)为试材,运用叶绿素荧光技术,在自然光下测定了3个扁桃品种的叶绿素荧光特性。结果表明,参试品种间的叶绿素荧光参数值存在差异。非拉各乃斯(Ferragnes)和索坡诺娃(Sopernova)的最大光能转换效率(Fv/Fm)、光化学猝灭系数(qP)均高,且正午过后恢复较快,不仅能较强地吸收光能,同时还具有较高的光系统活性和光能转化效率,能将所吸收的光能有效地转化为化学能,提高光合电子传递速率。更多还原

【Abstract】 Trials with three pot-cultured varieties of almond (Amygdalus communis L.) under natural lighting revealed that there existed difference in parameter of their chlorophyll fluorescene. Fv/Fm and qP of ‘Ferragnes’ and ‘Sopernova’ were higher than that of ‘Ferraduel’, and Fv/Fm restored very fast after noon. The leaves of ‘Ferragnes’ and ‘Sopernova’ not only could absorb the light energy more effectively, but also had higher PSⅡactivity and light energy transforming efficiency, which could turn the light energy absorbed into chemical energy effectively, and then increased the transmitting rate of photosythetic electrons.更多还原