pear

The polyphenol oxidase (PPO) in snow pear flesh was extracted and purified.

以雪梨果实为试材,通过以邻苯二酚为底物测定氧化产物的方法,测定温度、pH值、抑制剂、不同成熟期及不同部位对PPO活性的影响。

Statistical distribution of mineral nutrition factor of large sample group’s leaf and soil in the high-yield orchards of two main early season pear (Pyrus pyrifolia) cultivars, Cuiguan and Mixueli, and the correlation of yield grade and mineral elements were studied.

通过对翠冠、蜜雪梨2个早熟砂梨(Pyrus pyrifolia)主栽品种高产果园大样本群体叶片(翠冠n=115、蜜雪梨n=62)、土壤(n=277)矿质营养因子的统计分布,以及"产量等级"与元素相关性研究,建立了亚热带季风红壤地区,并以豆梨(Pyrus calleryana)为砧木条件下的2个品种的10项叶片矿质营养适宜指标,以及13项砂梨的土壤有效态营养适宜指标。

Exploitation and resource of Huizhou pear in the region of She Xian;

徽州雪梨资源及开发利用

Effects of Pb~(2+),Cd~(2+) and Their Combined Pollution on the Physiological and Biochemical Indices of Yunhe Snow Pear Seedling trees;

Pb~(2+)·Cd~(2+)及其复合污染对云和雪梨树苗生理生化指标的影响