茶皂素杀线虫活性和大田防效.pdfVIP

harvest time after saponin preparations were used in Bozhou city at dosage 300kg/hm2 saponin(65%) to control M. incognita J2 150d later. Wheat yields of tea saponin preparations treatment plots increased by 5.1%, compared to non-treatment plots at harvest time after saponion preparations were used at dosage 400 kg/hm2 saponin (65%) to control wheat cyst nematode at harvest time in Yingshang conty. yield of wheat Tea saponin (65%) was used with application of 300 kg/hm2 to control wheat cyst nematode in Xiao conty. The results showed that egg density was habited. by 41.4% 150d later. Average plant height of 5 treatment increased rang form 1.7-7.0% compared to the blank control. Measured wheat yields of tea saponin preparations and oil-tea cake treatment plots increased by 6.8% and 14.6% compared to non-treatment plots at harvest time. Effect of theaceae plant materials on crop growth : A pot experiment was carried on to investigate impact of tea seed, oil-tea cake and tea saponin (65%) on wheat growth. The results showed that seed, oil-tea cake and tea saponin (65%) treatment stimulated the wheat growth at low application, inhibited the wheat growth at high application. Keywords: Camellia oleifera, tea saponin, nematicidal activity, phytoparasite nematode, field control effect III 目 录 摘 要I Abstract II 1 文 献 综 述 1 1.1 植物寄生线虫病害的发生及其经济重要性 1 1.1.1 根结线虫病的发生与危害 2 1.1.2 小麦孢囊线虫病的发生与危害 2 1.1.3 松材线虫病的发生与危害 3 1.2 植物寄生线虫病害的防治方法和现状 3 1.2.1 植物寄生线虫病害的防治方法 3 1.2.2 植物寄生线虫病害的防治策略 4 1.3 植物源杀线剂的研究进展 4 1.3.1 植物源杀线剂的研究兴起 4 1.3.2 植物源杀线虫活性物质作用机理的研究 5 1.3.3 植物源杀线剂在农业生产中的应用 6 1.4 皂素类