上海地区栽培甜樱桃光合特性研究

[目的]研究上海地区栽培甜樱桃（Prunus avium L.）的光合特性。[方法]对上海地区栽植的拉宾斯、先锋、萨米脱和布鲁克斯4个甜樱桃品种的光合特性进行研究。[结果]布鲁克斯和萨米脱的叶绿素含量高于拉宾斯和先锋,但4个甜樱桃品种叶片中叶绿素含量与光合速率（Pn）不存在正相关关系。拉宾斯和先锋的气孔密度明显大于布鲁克斯和萨米脱,气孔纵径和横径却较相对小。4个甜樱桃品种的饱和光强都在800μmol/（m^2·s）附近,拉宾斯的光饱和光合速率最高,为11.7μmol/（m^2·s）,光合能力最强。布鲁克斯存在一定程度的光抑制现象,与其他品种相比,表现出了一定的阴生植物的倾向,能较充分地利用弱光,而且利用低浓度CO2的能力仅次于拉宾斯,比较适合在光照较差的设施内或者南方地区栽培。[结论]该研究可为上海等长江以南地区甜樱桃的引种和优质高效栽培提供理论支持。

Study on Photosynthetic Characteristics of Prunus avium L. in Shanghai

[Objective]The research aimed to study the photosynthetic characteristics of Prunus avium L.in Shanghai.[Method]The photosynthetic characteristics of leaves in four Prunus avium L.cultivars(Labins,Van,Brooks and Summit) in Shanghai were studied.[Result]The results showed that the Chlorophyll content of Brooks and Summit were higher than Labins and Van.There was no interrelation between Pn and Chlorophyll content in the four cultivars.Labins and Van had higher stomata density but smaller stomata size.The lig...