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抗（耐）甜菜丛根病品系—8418的选育 总被引：1，自引：0，他引：1
抗（耐）甜菜丛根病品系－８４１８系从标准偏高糖品种晋甜２号中优选单株，经两次自交分离出两个优良单株，经试验选留８４１８Ｂ，几经丛根病病田培育，优选出抗病株系，通过室内检测，在丛根病与非丛根病发病区选育以及春夏播等方法，提高了抗病能力，经８年品系比较试验，区域试验，生产示范鉴定结果，均优于亲本对照与当地推广品种，１９９２年６点区域试验块根产量，含糖率，产糖量分别比亲本与对照品种提高２３．１％与２３． 相似文献
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甜菜多倍体新品种BHK1系多倍体雄不育单粒品种,由四倍体多粒品系BS95462作父本,与德国KWS种子公司KWS26194作母本杂交育成,该品种抗（耐）丛根病、抗根腐病、褐斑病、黄化毒病及立枯病性较好,在2006-2007年内蒙古自治区甜菜品种区域试验中。两年均达到新品种标准,其块根产量、含糖率、产糖量两年平均比对照分别提高21.14％、0．26度和23．42％：同时在2007年的普通组生产试验中,平均产量为69885kg／hm^2,比对照增产24．张,含糖率为14．9％．比对照低0．04度,达到新品种标准;在三级丛根病地生产试验中,平均产量为34680kg／hm^2,含糖率为15．63％．达到抗（耐）丛根病标准。 相似文献
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2009年从德国斯特儒博种业公司引进SD21816、SD12830等6个甜菜新品种,经过两年区域试验示范表明,SD21816块根产量高,含糖率稳定,出苗快,易保苗,抗风沙危害,抗甜菜丛根病、褐斑病、黄化毒病能力强,属丰产偏高糖型品种,具有很好的推广应用价值。 相似文献
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甜菜单粒型雄性不育杂交种新甜九号的选育 总被引：4，自引：0，他引：4
新甜九号系以自育单粒雄性不育系石单ｍ２０２Ａ为母本，多粒二倍体自交系Ｚ－２为父本配制的甜菜单粒型二倍体雄性不育杂交种，经小区试验，区域化试验和生产试验，结果表明，该品种具有丰产性好，含糖率高，抗（耐）甜菜褐斑病，白粉病及丛根病等特点，属标准偏丰产类型的甜菜新品种。 相似文献
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ZM202是美国BetaSeed公司和中国农业科学院甜菜研究所合作选育的甜菜二倍体多胚雄不育杂交种。该品种丰产性突出．舍糖性状优良,抗丛根病,耐根腐病和褐斑病,适应性广,块根品质好。在2005～2006年的黑龙江省甜菜品种区域试验中．两年14个试验点次平均根产量44019．2kg／hm^2,比对照品种甜研309提高37．2％;平均含糖率16．4％．比对照品种低0．8度;平均产糖量7285．6kg／hm^2,比对照品种提高31．7％;对丛根病、根腐病的抗性明显优于对照品种．对褐斑病的抗性与对照品种相当。在2007年的黑龙江省甜菜品种生产试验中．5个试验点ZM202平均根产量45754．2kg／hm^2．比对照品种甜研309提高48．7％：平均含糖率17．1％。比对照品种低0.2度;平均产糖量7729．2kg／hm^2．比对照品种提高45．2％。该品种适宜在黑龙江省的齐齐哈尔、哈尔滨、大庆、黑河等甜菜产区种植推广。 相似文献
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新甜18号是石河子甜菜研究所选育的抗丛根病二倍体雄性不育多粒型杂交种,在2006-2007年新疆维吾尔自治区甜菜品种区域试验中．两年14个点次的块根产量平均为82156．5kg／hm2,比对照KWS2409增产3．99％,含糖率平均15．21％,比对照低0．09度,产糖量平均12745．5kg／hm2,比对照增糖4．3％。在丛根病抗性鉴定中,两年平均块根产量为102182．3kg／hm2．比对照KWS2409增产33．92％,含糖率15．10％,比对照低0．08度,产糖量平均18475．5kg／hm2,较对照增糖35．0％。该品种丰产性能稳定,抗病性强,适应范围广。 相似文献
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甜菜多倍体新品种包育３０１是由四倍体ＢＳ４０１与二倍体ＢＳ７９－１杂交而成的。该品种具有丰产性稳定、含糖率高、抗褐斑病、抗黄化毒病和丛根病，在内蒙古自治区区域试验及生产示范中，其平均块根产量、含糖率和产糖量分别比统一对照品种工农５号提高５％、１．０度和１３．４％，属于标准型优良品种。 相似文献
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分析了目前我国甜菜糖业发展的情况及存在的问题,论述了-N菜糖业发展的形势和目标,提出了在“十二五”对我国甜菜制糖行业一些问题进行研究和解决的建议：调整甜菜和粮食的比价、对甜菜生产实行补贴,建立甜菜糖业新的增长点．加大对国产甜菜品种育种、繁殖和推广的力度,大力研究和推广甜菜糖厂节能减排工程项目,要建成和发展甜菜糖业循环经济产业。 相似文献
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用丰产性参数、稳定性参数及适应地区、综合评价和抗病性鉴定,对2011-2012年参加新疆甜菜品种区试的4个品种进行了综合分析,结果表明：ST14091、ST21015、XJT9904、HI0936块根产量的丰产性、稳定性好,两年平均较对照KWS2409增产11.2％、9.6％、6.3％、5.8％,差异达极显著、显著水平,适应范围广,综合评价为很好、很好、较好、较好.两年平均块根产糖量较对照KWS2409增产15.3％、17.4％、13.9％、15.1％,差异均达到极显著水平,适应范围广,综合评价为很好、很好、好、好.含糖率在14.80％～15.58％之间,较对照提高0.50～1.28度.对甜菜丛根病、根腐病、褐斑病的抗性均达到中抗、抗、中感水平,具有较高的应用价值,适宜于在新疆南北疆糖区推广. 相似文献
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Cecil C. Konijnendijk Anders Busse Nielsen Jasper Schipperijn Yngve Rosenblad Heldur Sander Mikk Sarv Kirsi Mkinen Liisa Tyrvinen Janis Donis Vegard Gundersen Ulrika kerlund Roland Gustavsson 《Urban Forestry & Urban Greening》2007,6(4):297-309
A review of research and research needs in urban forestry was carried out in Denmark, Estonia, Finland, Latvia, Norway and Sweden during 2005. A questionnaire addressing post-2000 and ongoing research was sent to 146 researchers and generated 76 completed questionnaires. Universities were found to lead urban forestry research, while municipalities headed funding organisations in terms of number of projects funded. Planning, ecological and management aspects were the most common research themes, but socially oriented research also played an important role. The research needs questionnaire was sent to 192 key research actors (assignors, users and researchers), resulting in 63 completed needs assessments. The research themes of ‘urban forest management’, ‘social and cultural values’ and ‘urban forest and green planning’ were prioritised for future research. Comparison of ongoing research and research needs showed discrepancies, as ongoing research does not always cover the same themes identified as primary research needs. Priorities for future research as identified by the research community respective those assigning and using research also differed. Economic assessment of benefits, for example, scored much higher as a need among researchers than other respondents. In terms of present weaknesses in the research ‘infrastructure’, research actors emphasised lack of funding, fragmentation of research and insufficient critical mass. The region's urban forestry research can be enhanced and made more meaningful by strengthening national and international networking within the research community, across disciplines, as well as between researchers and those commissioning and using research. 相似文献
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Research mapping is a method of organising research information as part of a process of formulating a research policy in a specific area. A research mapping project was undertaken in the UK, which aimed to map existing and future research into public and green space, to identify gaps in order to help set priorities for future research, and to develop a freely accessible and searchable database of this research. The mapping was structured around two axes. The first axis was of research themes based on The Value of Public Space but developed further and broken down into sub-themes. The second axis was a typology of green and public space based around Planning and Policy Guidance Note 17 (PPG17) with elaboration from Green Spaces, Better Places. Research dating back to 10 years was collected together with information on recently completed, ongoing and planned UK research. Only research meeting specific quality criteria was included. Some information was also collected at a seminar where attendees from a range of organisations were invited to offer their perspectives on where research priorities should be directed. All the material was analysed and the main trends were identified. Three key cross-cutting themes common to much of the research were identified. These are the general lack of baseline surveys against which to assess progress over time; methodological issues, especially the need to standardise data collection methods and techniques; the classification of social groups, currently considered to be too crude.It was found that most research has been undertaken on physical aspects, such as planning and on biodiversity. Economic values have also been a focus, but on a smaller scale. Social research is quite well covered but very patchy. Management is better covered than maintenance. By far the weakest area represented in the research is health and well-being, both in terms of social groups and types of green space. Priorities for further research were then identified. 相似文献
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为了加快球茎甘蓝的研究步伐,从球茎甘蓝起源进化、引种栽培、品种选育及分子生物学等方面对其研究现状及存在问题进行综合阐述。在栽培上,我国多地均已开展引种和栽培试验,并掌握了球茎甘蓝栽培技术;在种质资源上,我国球茎甘蓝种质资源的研究主要处于国外种质资源引进,地方品种收集、整理和保存的阶段;在育种上,球茎甘蓝在我国的种植面积相对较小,新品种选育科研力量较弱;在分子生物学研究上,关于球茎甘蓝的分子生物学机制的研究主要是将甘蓝作为参考基因组,研究皮色的调节机制;此外,对球茎甘蓝生物化学成分的药用价值进行了分析和总结,同时建议加大球茎甘蓝观赏性盆栽栽培技术的研究及利用。 相似文献
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该研究指出了近年来我国有关重瓣花多层面研究中的关键方向,归纳了不同起源方式及种类的重瓣花的研究成果,重点总结了近年来有关重瓣型植物形态分化、繁殖技术、分子研究及应用的研究,并在此基础上对重瓣植物花器官发育理论研究的价值、前景和存在的问题等进行了探讨与展望,以期为今后重瓣植物的选育提供参考依据和技术手段。 相似文献
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为系统梳理生物炭对土壤微生物活动、群落等方面影响的研究进展和未来发展趋势,以2007-2020年Web of Science核心合集数据库中针对生物炭调控土壤微生物的文献为样本,采用文献计量学软件CiteSpace对文献的年发文量、研究力量和研究热点进行了可视化分析。从论文数量和质量来看,近年来以生物炭为主题对土壤微生物研究的发文数量呈现急剧增长趋势,发文数量最多的国家是中国和美国。文献排名TOP 10的科研机构有中国科学院、浙江大学和康奈尔大学等,作者分析显示科研团队之间存在深入的学术交流。基于关键词聚类分析和突现词分析,研究主题热点集中在不同材质、温度等条件制备的生物炭对土壤微生物群落结构、细菌和古菌的影响。该领域未来应更加注重生物炭改变土壤微生物的内在机理研究,提高生物炭和土壤微生物的联合作用关注度。 相似文献
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