Pyrus communis L were different in germplasm with China pear.
西洋梨与中国梨有种质区别；
The results obtained are listed as followings:(1) ASPV was tested from Pyrus pyrifolia in China.
取得的主要研究结果如下：（1）砂梨上ASPV的鉴定和分离。
The essential oil from the flowers of Pyrus betulaefolia Bunge was abstracted by steam-stilling and analyzed by capillary GC-MS method.
采用水蒸气蒸馏法从杜梨花中提取挥发油，用气相色谱-质谱法对化学成分进行鉴定。
A widely cultivated tree (Pyrus communis) in the rose family, having glossy leaves, white flowers grouped in a corymb, and edible fruit.
梨树一种蔷薇科的普遍种植的乔木(梨属西洋梨)，具有光质叶片，白色的伞状花簇，果实可食用。
Main floral characteristics of Xiangli (Pyrus bretschneideri Rehd) were observed and pollen activity was synthetically studied in the paper.
在观察香梨的花器特征的基础上，对花粉量、花粉生活力及花粉萌芽力进行了综合研究。
The fruit of Western Pear (Pyrus communis L.) can produce a great deal endogenous ethylene only after harvested and start the ripening of the fruit.
西洋梨果实只有在采收后才能大量产生内源乙烯，启动果实的完全成熟，因而后熟是西洋梨生产过程中的一个关键环节。
This research was carried out to compare protective effects of different packagings(paper-wrap and foam-net packages) on Huanghua pears(Pyrus pyrifolia Nakai cv.
比较了不同内包装对运输过程中黄花梨的保护效果，以及运输结束后市售条件下对黄花梨品质的影响。
It explained that reformed CTAB method could extract the genomic DNA of Pyrus successfully, and the optimum RAPD reaction system could amplificate RAPD in Pyrus L…
说明改良的CTAB法能成功用于梨属植物DNA提取，建立的最佳反应体系可用于梨属植物RAPD扩增。
Here, spring-flowering pyrus and prunus trees frame the view to the golf course while mimosa and jacaranda trees provide summertime blue and red flowers as well as cooling shade.
这里，春季赏花豆梨和李树形成了框景通向高尔夫会所的景观，而含羞草和紫薇提供了夏季蓝色红色的花朵和阴凉。
Microwave, water bath and ultrasonic extraction were employed to extract the polysaccharide from Pyrus Betulaefolia Bge. leaf and anthrone-sulphuric acid colorimetry was used to determine its content.
分别采用微波、水浴及超声波3种方法提取杜梨叶片多糖，用蒽酮-硫酸比色法测定多糖的含量。
Microwave, water bath and ultrasonic extraction were employed to extract the polysaccharide from Pyrus Betulaefolia Bge. leaf and anthrone-sulphuric acid colorimetry was used to determine its content.
分别采用微波、水浴及超声波3种方法提取杜梨叶片多糖，用蒽酮-硫酸比色法测定多糖的含量。
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