补光及施肥对东方百合'玛丽'切花生长和品质的影响

以东方百合品种'玛丽'(Mero star)为材料,研究了补光和施肥对其生长发育和开花的影响.结果表明:补光促进了开花,能提早20 d左右,使切花品质提高,花败育减少,促进了花色鲜艳.而施肥对开花早晚无明显影响,但在补光条件下随着施肥水平的提高品质提高.     

利用性信息素监测和防治梨小食心虫试验

通过性信息素监测和防治梨小食心虫试验,初步掌握了原平同川梨区梨小食心虫的发生发展规律,为进行科学防治提供了理论依据。     

梨小食心虫性诱剂效果评价

梨小食心虫(Grapholitha molesta Busck)是世界性的重要果树钻蛀性害虫之一。目前,性信息素诱捕器广泛应用于害虫防控,为提高性诱剂对梨小食心虫测报及诱捕效率,从两方面研究了梨小食心虫性诱剂对梨小食心虫的诱捕效果,采用了8个性诱剂产品诱杀梨小食心虫,同时每个诱捕器内设1、3、5、7、9、11个芯数,共6个处理诱杀梨小食心虫。结果表明,A诱捕性诱芯和C诱捕性诱芯诱捕效果最好;诱捕器的诱芯数量为1时引诱到的梨小食心虫数量最多。建议在田间测报和大量诱捕时,使用A诱芯,可达到较高诱捕量,同时也可节约成本,提高效率。     

The Dynamics of Changes in Starch and Lipid Droplets and Sub-Cellular Localization of β-Amylase During the Growth of Lily Bulbs

The ultra-structure of mother and outer daughter scales of Lilium Oriental hybrid Sorbonne were studied using transmission electron microscope to examine the sub-cellular localization of starch and lipid droplets during growth and development from shoot emergence to senescence. The contents of starch granules and lipid droplets in the cell of the mother scales decreased significantly from shoot emergence to anthesis, indicating that these scales served as a source for growth and development. After flowering, the number of starch granules and lipid droplets increased dramatically, and finally the cells were filled with the above molecules indicating that the bulb becomes a major sink during bulb enlargement. Ultrastructure observation also showed that symplastic pathway is the main pathway in cells in the exchange and transportation of material during bulb development. The activity of β-amylase, one of the key enzymes catalyzing starch breakdown, showed a similar trend. The enzyme sub-cellular localization via immune-gold electron-microscopy showed that β- amylase was predominantly located together with starch granules, while the gold particles were scarcely found in other sub-cellular compartments. The result suggested that this enzyme is compartmented together with its functional substrate supporting its function in catalyzing starch breakdown in living plant cells.     

笼养东方白鹳繁殖育幼行为的初步研究

2002年天津动物园东方白鹳自然孵化与育雏首次获得成功。采用目标动物取样法对1对笼养条件下东方白鹳繁殖期筑巢、交配、产卵、孵化和育雏等行为进行了研究,研究结果表明东方白鹳的交配行为多发生在环境安静的早晨和傍晚;亲鸟自然孵化时,每天凉卵次数、时间并不固定,根据外界气温而随时改变;雌雄亲鸟共同承担哺育、护理幼雏的责任,但2个亲鸟不同时喂食,以雌鸟为主;整个孵化期和育雏期亲鸟都有护巢、恋巢和补巢的行为,但补巢以雄鸟为主。     

吉林省两种鸟类新纪录

红腹滨鹬和东方行乌均属鹆形目的小型水鸟,在吉林省一直没有记录。2009年5月在莫莫格国家级自然保护区大岗林场记录到了东方鹆,还记录到了卵与巢。8月在查干南泡记录到了红腹滨鹬。填补了这2种鸟在吉林省分布的空白。     

冀东地区梨小食心虫发生规律研究

利用性诱剂诱集的方法,调查了冀东地区梨园和桃园梨小食心虫成虫的发生规律;并人为制造越冬场所,调查了梨小食心虫在梨树和桃树上的越冬虫态及数量。结果表明：在冀东地区梨小食心虫每年发生有5~6个高峰期,以蛹越冬。该害虫在梨树整个生长季节均有发生,其中4月下旬~9月上旬大量发生,世代有增加的趋势;对梨果实的为害程度有随着果实成熟度的提高而加重的趋势,虫果率为10.8%~45.6%。在桃园前期发生量大,后期有逐渐减少的趋势,尤以6~7月发生较多;梨小食心虫有转梢为害的习性,对桃梢的为害程度随时间的推进而逐渐严重,桃梢为害率达11.78%~85.2%,桃虫果率高达69%,为害十分严重。     

青虾种质资源研究与保护进展

为了有效开展长江中下游地区青虾规模化养殖等工作。本研究简要总结青虾基础生物学、生化组成、细胞遗传学、生化遗传学、分子遗传学及基因组学等方面的主要研究成果,并对青虾种质资源的保护利用提出了一些意见。旨在为青虾种质资源的合理利用和保护提参考资料。     

涵芬楼和东方图书馆小史

记录涵芬楼和东方图书馆的兴衰史.     

云南怒江河谷吃味型香料烟调制技术研究

试验通过不同的穿叶密度来探索适合吃味型香料烟品种的调制方法.结果表明,红花沙姆逊品种上部叶适合的穿叶密度为每米穿叶200片,中下部叶适合的穿叶密度为每米穿叶150片;杰尼克品种上部叶适合的穿叶密度为每米穿叶360片,中下部叶适合的穿叶密度为每米穿叶300片.