三种分析方法对小麦新品种的综合评判

为对小麦新品种进行综合评价，以10个小麦新品系的主要性状为指标，采用相同的原始数据和权重系数，运用模糊综合评判、DTOPSIS法、灰色关联度分析对其进行综合评判。结果表明，采用DTOPSIS法评判结果为E、A、D三品系综合性状最好，J、F品系最差；灰色关联度分析评判结果为E、D、C、A品系综合性状最好，I、F品系最差；模糊综合评判结果为E、C、D品系为优良品系，H、F品系最差。三种综合评判小麦新品种优劣的顺序虽存在一定的差异，但变化总趋势基本一致，其中综合评判E、D为优良品系，F品系最劣，这与品系的实际表现相一致。     

不同谷子品系出苗率试验

不同谷子品系出苗率试验赵术伟张宝金（辽宁省水土保持研究所朝阳１２２０００）谷子正常出苗要求土壤含水量在１６％以上，但辽西地区春季干旱，土壤跑墒严重，尽管谷子播种后采取镇压等保墒措施，也难免土壤含水量的迅速下降而导致谷子不能正常出苗，严重影响谷子产量。...     

应用灰色系统理论综合评估水稻新品系

应用灰色系统理论中的关联度分析方法，对我课题组2002年水稻新品系比较试验的结果进行综合评估，结果与品系实际表现基本一致。证明由于各性状对品系的重要性不同，在给出不同的权重系数时，运用灰色关联分析对水稻新品系进行多性状综合评估比单纯依靠产量结果对参试品系进行评估更具科学性。品6加权关联度最大，明年可参加省区试。     

应用DTOPSIS法综合评价甘蔗自育品系

用DTOPSIS法对10个甘蔗自育品系进行了综合评价,结果表明,综合性状优于新台糖22号(对照)的有桂垦08-174,可作为下一步试验的备选品系,其余品系综合性状差于对照,仍需进一步试验观察或淘汰。     

用DTOPSIS法综合评价陆地棉23个品系

为了选择综合性状较好的品系在生产中示范和推广,应用DTOPSIS法对23个棉花品种(系)的10个性状进行综合评价。结果表明:供试品系CM3和R2×BD18/F6的Ci值排序为前两位,且综合性状优于其他品系,适合示范推广;德农0905×R2/F5产量排序为第一位,纤维长度、强度等性状符合育种目标,但是它的霜前花率较低,马克隆值偏大,并且Ci排序为第9位,因此综合考虑此品系不太适合推广。     

棉花远缘杂交优良品系介绍

棉花远缘杂交优良品系介绍李爱莲，董文召，王家典，孙玉堂，马惠平，郭小平河南省农科院经作所郑州４５０００２纪好勤河南省农科院经作处１９９４年我们选育出几个综合性状好，并具有特殊优良性状的远缘杂交新品系。为了使育种家及早了解我们的材料，以便对他们的工作有...     

DTOPSIS法对云蔗05型甘蔗品系的综合评价

采用DTOPSIS法对云蔗05型9个甘蔗品系品比试验进行综合评价。评价结果表明:品系云蔗05-49、云蔗05-51综合性状优于双对照,云蔗05-39及云蔗05-211优于ROC16(CK2),次于ROC22(CK1)。上述4个品系应重点试验和评价,其余综合性状次于双对照的品系,仍需作进一步观察试验或直接淘汰。     

豫棉22的选育

1 选育经过遗传背景.豫棉22原名郑113,系由综合性状好、结铃性强的中熟品系郑35和衣分高的早熟品系豫职8602杂交选育而成.郑35由综合性状好、结铃性强、稍晚熟的品系"商40"与抗病品系"豫抗一号"杂交而成;豫职8602由大铃、衣分高的品系"百8011"和早熟品系"78156"杂交育成.     

早熟优质新品种新陆早63号

新陆早63号（原代号中705）是由中国农业科学院棉花研究所北疆生态试验站于2005年以优质品系天河99为母本，以抗病丰产品系126为父本进行杂交，结合南繁加代，辅以病圃选择，并进行连续的单株选择，决选出的综合性状优良的早熟陆地棉品系。     

不同来源的谷子种质资源鉴定与评价研究

近几年,辽宁省水土保持研究所从国内不同谷子种植生态区引进种质资源220份,对引进的谷子种质资源进行了综合鏊定分析与评价,包括农艺性状、抗逆性、籽粒品质等方面,建立谷子种质资源电子文件数据库,在鉴定评价基础上筛选出一些适合于辽西生态区种植的优异谷子种质资源     

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。     

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。     

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.     

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.     

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。     

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。     

实施茶叶优势区域规划促进川茶产业持续发展

为了充分发挥四川茶叶的比较优势和自然资源优势,进一步提高川茶产业竞争力和促进农民增收,在四川省委、省政府重视下,在开展特色茶叶产品研究的基础上,制订了<四川省茶叶优势区域规划>,以期通过"规划"的实施,在基地建设、规模化生产、产业化经营等方面取得新的突破,为四川省盆周山区和丘陵地区的农村经济发展和农民增收做出新的更大贡献.     

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。