In this study, the processes of pollination ecology of Fritillaria delavayi were investigated to document its reproductive characteristics. Some individuals of F. delavayi could produce seeds under bagging without emasculation (11%), but the rate was significantly lower than that of the natural control (87%). It is suggesting that pollination of F. delavayi largely depends on pollen vectors. Bombus sushikini was the only effective pollinator of F. delavayi and the visitation frequency was 0.003 time xXflower(-1) x min(-1). Flowering of F. delavayi in whole population lasted for 35 d and single flower for 11 d. Pollen viability and stigma receptivity lasted for 9 d and were relatively long compared with other Fritillaria genus plants. Consequently, bumblebee pollination and long floral longevity seem to be important for reproductive assurance of F. delavayi in harsh alpine environments.

A graduation thesis,the last step for adult student in higher education,can make a student integrate theory with practice,apply the knowledge and skills to solve the problem.It is also necessary to achieve the training objectives. According to awareness-raising,innovative paper evaluation model,the reform teaching method of thesis writing,it is significant to grasp the characteristics of adult students in higher education,improve thesis writing guide and management and improve the quality of thesis writing.

采用稀土溶液浸种处理对白皮松种子育苗的效应进行了研究,结果表明不同浓度的稀土溶液均能有效地增进白皮松种子的萌发进程,与对照相比提高白皮松种子的场圃发芽率达25.6%～89.7%,出苗时间缩短6～11d,出苗整齐,苗高年生长量增加42.1%～65.7%.以lOOmg/kg的稀土溶液浸种效果最好.

采用多效哇对地毯式大教堂(Cathedrag Perennial ryegrass)草坪进行叶面喷施处理后,能有效减缓大教堂植珠地上部生长,提高根冠比,廷缓肥力衰竭,减少草坪修剪频率.促进分基形成,可使叶片变短增厚加宽,提高叶绿素含量,降低生产管理成本,使草坪更具观赏性.

采用多效唑对地毯式‘大教堂’（cathedralperennia1ryegrass）草坪进行叶面喷施处理后 ,能有效减缓‘大教堂’植株地上部生长 ,提高根冠比 ,降低肥力衰竭 ,减少草坪修剪频率 ,促进分蘖形成 ,可使叶片变短增厚加宽 ,提高叶绿素含量 ,降低生产、管理成本 ,使草坪更具观赏性

<植物生理学>是中等农林学校一门重要的基础课,其内容繁多,理论知识较深,发展又十分迅速,鉴于中等农林学校的培养目标与大专院校有别,应特别注重应用和实践能力的培养.