鄂籼杂1号春制高产技术总结

鄂籼杂1号是湖北省荆州市种子总公司育成的优质高产杂交晚稻组合,1996年3月通过湖北省审定.经过多年制种实践,产量逐步提高,1998年以来在荆州市大面积制种(每年700 hm2左右)连续获得了高产稳产,平均单产稳定在3.03 t/hm2左右,最高单产达4.72 t/hm2.总结了其主要技术措施.     

两系杂交中籼稻徽两优6号母本抛秧高产制种技术

2009年在安徽巢湖制种基地进行两系杂交水稻徽两优6号(1892S/扬稻6号变异株)母本抛秧制种20hm2,平均单产2.96 t/hm2,最高单产3.65 t/hm2,种子纯度99%以上.提出了该组合母本抛秧制种优质高产的配套技术.     

新香优207高产制种技术

2003年新香优207在永兴县柏林基地制种25 hm2,获得高产,平均单产3.84 t/hm2,最高单产5.1 t/hm2.总结了新香优207高产制种技术,针对新香优A的特征特性,其技术关键是围绕提高母本抗倒伏力的肥水管理与喷施"九二○"技术.     

两系超级杂交稻Y两优1号母本直播制种技术

2008和2009年连续2a在湖南绥宁县武阳制种基地进行两系超级杂交水稻Y两优1号(Y58S/9311)母本直播制种14hm2,平均单产2.93t/hm2,最高单产4.2t/hm2,种子纯度99%以上。提出了该组合母本直播制种优质高产的配套技术。     

两系超级杂交水稻新组合Y两优1号优质高产制种技术

2005年在湖南绥宁县武阳制种基地试制两系超级杂交水稻Y两优1号(Y58S/9311)0.78 hm2,平均单产2.97 t/hm2,最高单产3.46 t/hm2,种子纯度在99%以上。初步掌握了其双亲的特征特性,提出了优质保纯高产制种的相应技术措施。     

福优58高产制种技术总结

福优58是恩施州农科院用福建省农科院稻麦研究所选育的高抗稻瘟病不育系福伊A与自育的恢复系恩恢58配制而成的高产、抗病、米质较优、适应性广的迟熟中籼新组合,于2001年11月通过恩施州农作物品种审定小组审定.2000～2004年5a在恩施州及武陵山区的低山稻区累计推广面积6.5万hm2,2005年被重庆市列入种粮农民直接补贴种子定向主栽品种(组合).福优58通过几年来的制种实践,制种单产一般在3.5～4.2t/hm2.2002年、2004年在恩施州建始县长梁乡制种基地制种14.94hm2,平均单产3.58～3.54t/hm2,其中最高单产达到了5.49t/hm2,现将其主要的高产制种技术总结如下:     

两系杂交稻组合C两优608优质高产制种技术

2009—2013年在湖南省永州市江永县松柏制种基地制种两系杂交水稻C两优608(C815S/R608),5 a加权平均单产3.22t/hm2,最高年份单产3.55 t/hm2,种子发芽率在85%以上,纯度在99%以上。结合其双亲的特征特性,提出了优质保纯高产制种的相应技术措施。     

T优5537高产制种技术

2002-2004年在福建尤溪、松溪和泰宁制种T优5537共111.6 hm2,平均单产2.95 t/hm2,最高单产4.95 t/hm2.初步掌握了新组合T优5537双亲特性及作早稻、中稻和烟后稻制种的特点,提出了高产制种的相应技术措施.     

杂交早稻K优619高产制种技术

K优619系温州市农科院选育的籼粳型早杂新组合，制种易获高产，1998～1999年在遂昌县制种9.98 hm2，平均单产3.05 t/hm2，其中1.6 hm2连片制种单产达4.32 t/hm2。对其高产制种技术进行了总结。     

新香优63制种技术小结

1997年,我站从湖南杂交水稻研究中心引进新香A种子,在我县金罗镇卫星村进行新香优63(新香A×明恢63)制种高产攻关试验.制种面积为6.7hm2,平均单产达3.08t/hm2,有6户1.03hm2平均产量过3.75t/hm2,卫星2组的孙际庆制种0.35hm2,总产1460.15kg,平均产量4.13t/hm2,其中800m2的一块田产量高达4.60t/hm2.现将其制种技术小结如下.     

豫北优质大豆产业发展策略

针对豫北地区的大豆生产现状，从气候、土壤、品种、生态因素及市场需求等方面提出了优质大豆的发展策略与途径。     

Comparisons of methods of scheduling irrigations of potatoes

Irrigation of Netted Gem potatoes was scheduled during three growing seasons by three methods: (a) when plants displayed first visual symptoms of moisture stress, (b) when indicated by a soil moisture budget involving estimated evapotranspiration, and (c) on the basis of tensiometer readings of soil moisture suction. When the tensiometer method of scheduling was used, the mean yields of tubers were 55.0 and 25.8 cwt/acre (6160 and 2890 kg/ha) higher than those obtained with the other two scheduling methods. Methods did not affect the specific gravity of potatoes. Method (a) scheduled irrigations least frequently. Scheduling by the budget method was not always adequate because it was based on the assumption that the crop extracted water from a constant 4 ft (1.2 m) profile from planting to full vegetative growth. In one year the budget method scheduled the first irrigation earlier than necessary and delayed the second irrigation during a critical period of crop growth. From full vegetative cover to harvest the irrigation schedules were alike for both the budget and tensiometer methods.     

湖南沅陵4种绿茶品质成分分析

以长沙县高桥相同嫩度茶鲜叶原料采用卷曲形毛尖茶加工工艺制绿茶为对照,分别对沅陵县齐眉翠峰、凤娇碣滩茶、干发茶和军大坪茶4种绿茶的主要生化成分与感官品质进行初步分析。结果表明,沅陵4种绿茶的茶多酚总量28.76%~30.34%,游离氨基酸总量2.35%~3.22%,咖啡碱含量3.00%~3.63%,水浸出物含量37.26%~40.07%,可溶性糖总量5.46%~5.65%,可溶性蛋白含量1.50%~1.74%,类黄酮化合物总量1.16%~1.79%,叶绿素总量1.36%~2.01%,儿茶素总量13.53%~16.20%。与对照相比,4种绿茶的茶多酚、可溶性糖和儿茶素总量均高于对照,除齐眉翠峰外其余3种茶样水浸出物和叶绿素总量均高于对照,除干发茶外其余3种茶样类黄酮化合物总量均高于对照。     

吉林省平安农业科学院大豆所大豆研究工作报告

1　吉林省平安农业科学院大豆研究工作简介吉林省平安农业科学院大豆研究所 ,设在吉林省长春市西安大路种子大厦内。现有科技人员 6人 ,其中研究员 2人 ,农艺师 2人 ,技术员 2人 ,定向培养研究生 2人。大豆研究所的主要任务是选育稳产、高产、优质及抗病虫大豆新品种 ;同时密切     

Analysis of nutritional components of eight famine foods of the Republic of Niger

In the western Sahel, indigenous plants become important staples when cereal harvests are inadequate to support populations inhabiting that region of Africa. The purpose of this study was to assess the nutrient content of several of these edible wild plants. The leaves of the following seven plant foods were analyzed: Ziziphus mauritiana, Cerathotheca sesamoides, Moringa oleifera, Leptadenia hastata, Hibiscus sabdarifa, Amaranthus viridi, and Adansonia digitata. The fatty acid, vitamin E, carotenoid, selected mineral and amino acid contents of these plant foods were determined. These same analyses were performed on the fruit of the Adansonia digitata. In quantitative and qualitative terms, Amaranthus viridis was found to be an excellent source of protein. Its amino acid composition compared favorably to that of a World Health Organization (WHO) protein standard. It also contained considerable amounts of the two fatty acids that are essential in humans (linoleic and -linolenic) and a number of minerals including iron, magnesium, calcium and zinc. The leaves of Hibiscus sabdarifa contained an appreciable quantity of protein the composition of which was comparable to the WHO standard. The mineral content of the leaves of this plant was also exceptionally high; noteworthy was its high zinc content. H. sabdarifa also contained significant quantities of the two essential fatty acids. Ziziphus mauritiana was an excellent source of the essential fatty acid linoleic acid and several of the metals including iron, calcium, magnesium and zinc. Its content of other essential nutrients, however, was rather low. In general, Adansonia digitata leaves were nutritionally superior to the fruit of the tree; however, the fruit did contain useful quantities of potassium, phosphorus, zinc and -linolenic acid. The Leptadenia hastata leaves were an especially good source of lutein and -carotene. These data should be useful to the people who inhabit the western Sahel in helping them devise healthy diets during times when cereal staples are in short supply.     

防治水稻潜叶蝇的药剂筛选

通过对防治水稻潜叶蝇不同药剂、不同用量的田间对比试验,结果表明,32 g/kg的35%丁硫克百威拌种预防潜叶蝇效果最好,药效可达55 d以上,适宜在生产上推广应用。     

狗牙根诱变后代抗寒性评价

通过电解质外渗法和匍匐茎恢复试验对‘阳江’狗牙根及其12个通过形态鉴定选出的坪用价值高且花序密度低的诱变后代进行抗寒性鉴定。电解质外渗法结果表明:诱变后代间的抗寒性具有较大差异,其叶片半致死温度(LT₅₀)的变异范围为-7.6～-0.2℃(最低值与最大值相差7.4℃);参试材料抗寒性由强到弱依次为M18>M4>M26>M28> M22>阳江>M29>M31>M10>M37>M16>M1>M25,其中,有5个诱变后代抗寒性优于亲本,分别是M18、M4、M26、M28、M22。匍匐茎恢复实验结果表明:诱变后代M1、M22、M26、M31、M25在0℃和-5℃低温胁迫后的恢复生长率都高于亲本,恢复能力均优于亲本;M10、M37、M28在-5℃低温胁迫下,恢复生长能力低于亲本,抗寒性相对较弱,M16和M4在0℃和-5℃低温胁迫下,恢复生长率都低于亲本,抗寒性明显弱于亲本。综合2种方法鉴定结果显示:诱变后代M1、M25的恢复能力较强;M4、M28的叶片抗寒性较好,青绿期较长;M22、M18、M26的叶片抗寒性和匍匐茎恢复能力均较强;M29,M31的叶片抗寒性和匍匐茎恢复能力与亲本相似;M10、M16、M37的叶片抗寒性和匍匐茎恢复能力均较弱,整体抗寒性较弱。     

芦笋枯萎病病原鉴定

对造成福建省漳州市东山县的芦笋枯萎病病原菌进行分子鉴定,以期确定病原菌的属、种名,为防治该病害寻求理论依据。试验对分离纯化的病原菌核糖体DNA的ITS区进行测序,在Genbank中搜索其同源性并构建它们的系统发育树,结果表明：引起芦笋枯萎病的病原菌是镰刀属中的尖孢镰刀菌(Fusarium oxysporum),且病原菌之间的同源性高达89%,遗传差异不显著。