燃煤热风炉的现状与发展方向

从燃烧设备、换热器、使用寿命、热效率、腐蚀和堵灰等几方面比较全面地介绍了燃煤热风炉的技术现状，并对今后的发展提出了建议     

芽孢桿菌對百合抗灰霉病之抗性誘導

Lily leaf blight,caused by Botrytis elliptica,is an important fungal disease in Taiwan.In order to decrease the disease incidence in Lilium formosanum,the efficacy of application of rhizobacteria for induced systemic resistance(ISR)was examined in this study.Over 300 rhizobacteria were isolated from the rhizosphere of L.formosanum healthy plants and 63 were identified by the analysis of fatty acid profiles.The ability of disease suppression of 13 strains was demonstrated by soil drench application of bacterial suspensions to the rhizosphere of L.formosanum seedlings.Biocontrol experiments were carried out with Bacillus cereus and Pseudomonas putida strains on Lilium Oriental hybrid cultivars Acapulco and Star Gazer besides L.formosanum in the greenhouse and field conditions.The assay with a B.cereus strain good for disease suppression showed that the protection against B.elliptica on L.formosanum could last for at least ten days,consistent with the good association of B.cereus with lily roots.Analysis of the expression of LfGRP1 and LsGRP1,encoding glycine-rich protein of L.formosanum and cv.Star Gazer,respectively,reveals a difference between that in response to the treatment of B.cereus and that singly induced by B.elliptica,suggesting that plant defense responses driven by B.cereus follows a signaling pathway different from that triggered by B.elliptica.According to the results of biocontrol assay and LfGRP1/LsGRP1 gene expression analysis with the culture filtrates of B.cereus strains,we presume that more than one eliciting factor of ISR are generated by B.cereus and some of them exhibit thermostable and autoclave-tolerant traits.This is the first report about ISR-eliciting rhizobacteria and determinants effective for foliar disease suppression on lily.     

Authorware中的ODBC技术

本文详细介绍了Authorware中利用ODBC接口进行数据库开发的全过程,及其应用中的关键技术要点。在多媒体软件的开发中,同样可以使用数据库有效地组织系统的各种信息,来提高软件的制作水平。     

玉米种植机械化技术应用探析

玉米生产机械化技术包括机械化耕整地、机械化播种、机械化施肥、机械化田间管理、机械化收获技术等.文章结合实际,分析了玉米生产各环节机械化技术应用要领.     

保健小窍门

腿或脚抽筋时，可立即用拇指和食指捏住上嘴唇的人中穴，持续用力捏20秒至30秒后，抽筋的肌肉就可松驰，疼痛也随之解除了。     

论图书馆公共关系

论图书馆公共关系康捷健（内蒙古哲盟教育学院图书馆通辽０２８０４６）图书馆管理工作的实践证明，每一个成功的图书馆管理都离不开良好的内部环境和外部环境，图书馆公共关系则是创造良好的内部环境和外部环境的强有力的一种手段。一、图书馆公共关系及其产生图书馆的公...     

使用增效磺胺间二甲氧嘧啶治疗鸡传染性鼻炎

增效磺胺间二甲氧嘧啶(TA—068W)为白色粉末,每克含磺胺间二甲氮嘧啶(SDM)45毫克,三甲氧氨嘧啶(TMP,磺胺增效剂)5毫克。对照药物中每克含盐酸土霉素(OTC)110毫克(效价)。供试鸡为120日龄的后滕360品系的青年鸡,在野外大笼内群饲.这些鸡曾在14日龄和28日龄接种过新城疫活疫苗.供试鸡分为5组,即 TA—068w0.1%饮水投药组(104只)、0.3%饮水投药组(158只)、0.5%饮水投药组(157只)、OTC 药物对照组(每升含500毫克,105只)和无处理对照组(198只)。各种药物投喂5日,其后观察7日.试验从1986年3月18日至3月30日结束.经过5天投药后,0.3%投药组存活率为99.4%,0.5%投药组为100%,无处理对照组为88.9%,差     

喷施GA3和乙烯利对柿果实成熟及内源GAS活性,ABA含量的影响

选用柿极晚熟品种宫崎无核,于果实发育第二期末(10月19日),叶面喷施100ppm的GA_3明显地抑制了果实的肥大生长、着色、糖的积累及果肉软化。对果实内源GAs活性和ABA含量进行分析的结果表明,叶面喷施GA_3使内源GAs活性大大提高,同时使ABA的增加受到抑制。与GA_3处理相反,果实发育第三期(10月1日),对中熟品种富有进行25ppm乙烯利的叶面喷施处理,明显地促进了果实的成熟,其作用尤以促进着色、加速果实软化最为明显。对内源GAs活性及ABA含量亦有明显影响,前者因乙烯利处理而降低,后者则因乙烯利处理而增大。