2015—2016年度永城市小麦增产科技支撑行动计划项目建设成效及经验分析

永城市2015—2016年度小麦增产科技支撑行动计划项目小麦高产创建面积666.67 hm^2,产量7 788.98 kg/hm^2,增产13.4%。总结了项目的主要成效,介绍了项目的主要经验和做法,分析了项目的示范效果,以期为该类项目的实施提供参考。

金善宝与中国现代农业科技发展

金善宝是我国著名的农学家、教育家,中国现代小麦科学主要奠基人。从云南小麦的发现和研究、中国小麦品种的分类和分布区域的研究、小麦新品种的选育与推广到小麦科学理论的总结与创新等,每前进一步,都树立了中国小麦科学研究的一个里程碑。金善宝从事教育和科研工作几十年,为我国培养了众多知名学者和卓越的农业科研人员。金善宝在农业科技政策、农业科技管理等方面有着自己深切的体会和独到的见解,为政府制定、调整农业发展战略和农业科技政策提出了许多中肯的建议。金善宝为中国现代农业科技发展留下了十分丰富的物质财富和精神遗产,他在推动现代农业科学发展的同时,为我国农业科技人员作出了行动的表率和学习的榜样。

A Preliminary Study on Biological Activity of Wikstroemia chamaedaphne Meissn

[ Objective ] The insecticidal and antibacterial bioactivity of Wikstroemia chamaedaphne Meissn were screened and bioactive substances in it were separated and purified. [ Method] The Wikstroemia chamaedaphne Meissn was conducted ultrasonic extraction in petroleum ether, ethyl acetate and methanol. The insecticidal activity of Wikstroemia chamaedaphne Meissn to Mythimna separata walker and aphid were determined. The antibacterial activity of Wikstroemia chamaedaphne Meissn to Fusarium graminearu, Glomerella cingulata, F. oxysporium f. sp niveum, Alternaria solani and Fusarium oxysporium were also determined. The bioactivity-guided methods such as opencolumn chromatography and Pre-HPLC method were used to separate active components in petroleum ether extract from Wikstroemia chamaedaphne Meissn. [ Result] When the concentration was 500 mg/L, 3 kinds of extracts from Wikstroemia chamaedaphne Meissn didn＇ t show obvious antibacterial bioactivity to 5 kinds of test samples. When the concentration was 5%, petroleum ether extract show certain topical toxicity to aphids. The ethyl acetate extract showed certain antifeedant activity to 3^rd instar Larvae of Mythimna separata Walker. The fraction F4 of petroleum ether extract possessed highest topical toxicity to aphids and the lethality was 60.00%. [ Conclusion] Wikstroemia chamaedaphne Meissn contained many insecticidal constituents whose active parts and mechanism were needed further researches.

悼窦履豫先生

我国小麦制粉行业倍受尊敬的窦履豫高级工程师，因病医治无效，于2009年7月3日在北京逝世，终年八十岁。

浅议科技储粮的应用

我们国家有句老话这样讲:手中有粮,心中不慌。对于我国亿多人口来说,足够充足的粮食供给是保障人民生产生活的先决条件。在互联网推广、智能化和信息技术飞速发展的今天,我国的储粮技术和管理方法也随之发生了巨大的变化。科技储粮是大势所趁,提高小麦等粮食作物的B常粮食仓储管理水平是势在必行。