甜菜雄性不育杂交种——双丰单粒2号的选育

单粒型甜菜雄性不育杂交种--双丰单粒2号,是以哈工大糖业研究院“六五”期间育成的单粒雄性不育系82002A为母本,多粒四倍体415的多个优良品系为父本,杂交育成的单粒雄性不育三倍体杂交种,属标准偏丰产单粒型新品种。该品种在黑龙江省甜菜品种区域试验中,其根产量、含糖率和产糖量分别比作为对照的当地主栽多倍体品种甜研301提高1.84%、-0.40度、-0.28%。在黑龙江省进行的生产试验中分别比对照提高10.8%、-0.08度和10.5%。该品种与抗褐斑病性较强的对照种相比,抗褐斑病性特平。     

关于培育甜菜雄性不育系理论的一点看法

甜菜波型双_2不育系与保持系,是我们利用波型不育系为母本与双丰二号为父本测交和连续回交进行核置换转育出来的。在转育雄性不育系的研究过程中初步看出甜菜雄性不育常和双亲亲缘有宓切关系。     

甜菜新品种中甜-吉甜单粒3号的选育

中甜——吉甜单粒3号是以本所培育的二倍体单粒雄性不育系7587-22A1为母本，多粒二倍体品系SC-203为父本杂交而成。该品种1999～2001年参加全国甜菜品种区域试验，根产量、含糖率、产糖量分别比CK1(多粒种对照)提高22．3％、低0．17度、提高22．2％；与CK2(单粒种对照)比提高2．8％、1．14度、11．1％。中甜一吉甜单粒3号2002年参加东北区、华北区生产试验，4个点次根产量、含糖率、产糖量与CK1比提高15．5％、低0．05度、提高15．3％，与CK2比提高1．9％、高1．35度、提高11．4％，中甜一吉甜单粒3号属于高产型二倍体单粒雄性不育杂交种。     

四倍体甜菜两系选育及杂交优势初报

自1948年在端士育出多倍体甜菜品种以后,有许多国家进行了深入的研究并被广泛应用于生产。多倍体甜菜品种,主要是二倍体单粒和多粒型雄性不育系做母本,其次是用普通四倍体甜菜做母本。至于用选育难度较大的四倍体雄性不育系做母本,目前所见报导还较少。     

甜菜品种HME-17引种试验

HME-17是以单粒二倍体雄性不育系MS-01Z为母本,多粒二倍体poll-216品系为父本,按母父本3:1杂交育成.经5年全国不同甜菜产区引种试验结果表明:与当地对照品种相比,HME-17块根产量增产14.7%,含糖率比对照提高0.52度,产糖量比对照增加17.8%;3年生产试验结果:根产量比当地对照增产16.4%;...     

利用杂种中分离出的单果型雄性不育株选育单果型甜菜雄性不育系

在西欧各国,选育单果型甜菜品种,一般都采用先育成单果型甜菜雄性不育系。用单果型雄性不育系与四倍体品系进行杂交制种,再从单果型母本种株上采收单果三倍体种子用于大田播种这样的一种育种途径。他们选育单果型甜菜雄性不育系所使用的单果型原始材料,都是利用美国的单果材料。从美     

工农201甜菜杂交种的选育

本文介绍了甜菜二倍体杂交种工农201的选育过程。该品种是内蒙古自治区第一个甜菜杂交种。其母本为多粒型雄性不育系M202,父本为二倍体品系334G(来自范育1号品种)。工农201品种属于标准型(N型)品种,抗褐斑病性较强,根产量和含糖率较高。在我国北方和西北地区一般栽培条件下的种植密度为82500～90000株/公顷。     

甜研202品种的选育

甜研202品种是二倍体雄性不育杂交品种。1973年开始其亲本的选育,1990年品种育成。该品种的母本为MS102多粒型二倍体雄性不育系,授粉系为二倍体多粒型自交系MP206和二倍体多粒型品系MP208。两年生产试验结果与当地主推品种比较,平均块根产量提高11.2%,含糖率提高0.6度,产糖量提高14.1%。     

甜菜新品种双丰14号的选育

本文介绍了甜菜新品种双丰14号的选育过程。该品种是二倍体多粒型雄性不育杂交种,其母本为二倍体多粒型双丰5号雄性不育系,父本为二倍体多粒型品系双丰10—6—25和双丰10—6—84。双丰14号品种属于标准型(N)抗病品种,有较强的杂种优势,抗褐斑病性强,适应性广泛。在1987～1989年黑龙江省甜菜品种区域试验中,其平均块根产量、含糖率和产糖量比统一对照品种双丰8号(CK)提高9.8％、0.7度和15.3％;在1990～1992年的生产试验中,其平均块根产量、含糖率和产糖量比CK提高11.3％、0.66度和17.1％。在我国北方地区栽培条件下的种植密度为60000～75000株/公顷。     

甜菜母本ms128的育根期对其杂交组合经济性状的影响

用甜菜单粒雄性不育系ms128的夏播根、伏播根和春播根分别与6443、9903、TE8、9103、334-10和334-1T六个父本(夏播)杂交.对杂交组合进行裂区试验,经结果分析表明:夏播母本组合与伏播母本组合的根产量和产糖量在5%和1%水平上无差异,两者分别与春播组合在1%水平上存在极显著差异,有明显优越性;三种组合间在含糖率上无显著差异,但以夏播组合含糖高.因此,在繁育以ms128为母本的甜菜品种时,最好采用夏播母本,夏播为其优育期.     

Reliable identification of grapevine rootstock varieties using RAPD PCR on woody samples

Since grapevine ( Vitis spp .) rootstock material is being traded increasingly as disbudded woody material a lack of distinctive morphological features on such material necessitates an alternative and reliable means of identification. Methods described here were developed for rapid and efficient extraction of DNA from woody samples rich in phenolic compounds and polysaccharides, and for subsequent identification of varieties by RAPD PCR. Using these methods, and with the application of only one selected RAPD primer, we were able to differentiate sixteen rootstock varieties, including the seven varieties most commonly used in Germany. Problems commonly encountered with reproducibility of RAPD patterns were avoided by choosing primers with a dinucleotide sequence and a high G/C content that allowed a rather high annealing temperature of 45°C. Methods described here should also be useful for other horticultural crops, especially those with woody tissues rich in phenolic compounds and polysaccharides.     

An internet compendium of analytical methods and spectroscopic information for monomers and additives used in food packaging plastics

An internet website (http://cpf.jrc.it/smt/) has been produced as a means of dissemination of methods of analysis and supporting spectroscopic information on monomers and additives used for food contact materials (principally packaging). The site which is aimed primarily at assisting food control laboratories in the European Union contains analytical information on monomers, starting substances and additives used in the manufacture of plastics materials. A searchable index is provided giving PM and CAS numbers for each of 255 substances. For each substance a data sheet gives regulatory information, chemical structures, physico-chemical information and background information on the use of the substance in particular plastics, and the food packaging applications. For monomers and starting substances (155 compounds) the infra-red and mass spectra are provided, and for additives (100 compounds); additionally proton NMR are available for about 50% of the entries. Where analytical methods have been developed for determining these substances as residual amounts in plastics or as trace amounts in food simulants these methods are also on the website. All information is provided in portable document file (PDF) format which means that high quality copies can be readily printed, using freely available Adobe Acrobat Reader software. The website will in future be maintained and up-dated by the European Commission's Joint Research Centre (JRC) as new substances are authorized for use by the European Commission (DG-ENTR formerly DGIII). Where analytical laboratories (food control or other) require reference substances these can be obtained free-ofcharge from a reference collection housed at the JRC and maintained in conjunction with this website compendium.     

Aroma characterization of various apricot varieties using headspace–solid phase microextraction combined with gas chromatography–mass spectrometry and gas chromatography–olfactometry

The characterization of the aromatic profile of several apricot cultivars with molecular tracers in order to obtain objective data concerning the aromatic quality of this fruit was undertaken using headspace–solid phase microextraction (HS–SPME). Six apricot cultivars were selected according to their organoleptic characteristics: Iranien, Orangered, Goldrich, Hargrand, Rouge du Roussillon and A4025. The aromatic intensity of these varieties measured by HS–SPME–Olfactometry were defined and classified according to the presence and the intensity of grassy, fruity and apricot like notes. In the six varieties, 23 common volatile compounds were identified by HS–SPME–GC–MS. Finally, 10 compounds, ethyl acetate, hexyl acetate, limonene, β-cyclocitral, γ-decalactone, 6-methyl-5-hepten-2-one, linalool, β-ionone, menthone and (E)-hexen-2-al were recognized by HS–SPME–GC–O as responsible of the aromatic notes involved in apricot aroma and considered as molecular tracers of apricot aromatic quality which could be utilized to discriminate apricot varieties.     

Tests of potential functional barriers for laminated multilayer food packages. Part I: Low molecular weight permeants

The advent of the functional barrier concept in food packaging has brought with it a requirement for fast tests of permeation through potential barrier materials. In such tests it would be convenient for both foodstuffs and materials below the functional barrier (sub-barrier materials) to be represented by standard simulants. By means of inverse gas chromatography, liquid paraffin spiked with appropriate permeants was considered as a potential simulant of sub-barrier materials based on polypropylene (PP) or similar polyolefins. Experiments were performed to characterize the kinetics of the permeation of low molecular weight model permeants (octene, toluene and isopropanol) from liquid paraffin, through a surrogate potential functional barrier (25 μm-thick oriented PP) into the food simulants olive oil and 3% (w/v) acetic acid. These permeation results were interpreted in terms of three permeation kinetic models regarding the solubility of a particular model permeant in the post-barrier medium (i.e. the food simulant). The results obtained justify the development and evaluation of liquid sub-barrier simulants that would allow flexible yet rigorous testing of new laminated multilayer packaging materials.     

Analysis of benzo[a]pyrene in spiked fatty foods by second derivative synchronous spectrofluorimetry after microwave-assisted treatment of samples

A simple, rapid and inexpensive method has been developed for the determination of benzo[a     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. II: Certification study

This paper describes the second part of a project undertaken to develop certified mussel reference materials for paralytic shellfish poisoning toxins. In the first part two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin and decarbamoyl-saxitoxin in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the certification exercise. Fifteen laboratories participated in this certification study and were asked to measure saxitoxin and decarbamoyl-saxitoxin in rehydrated lyophilized mussel material and in a saxitoxin-enriched mussel material. The participants were allowed to use a method of their choice but with an extraction procedure to be strictly followed. The study included extra experiments to verify the detection limits for both saxitoxin and decarbamoyl-saxitoxin. Most participants (13 of 15) were able to meet all the criteria set for the certification study. Results for saxitoxin.2HCl yielded a certified mass fraction of <0.07 mg/kg in the rehydrated lyophilized mussels. Results obtained for decarbamoyl-saxitoxin.2HCl yielded a certified mass fraction of 1.59+/-0.20 mg/kg. The results for saxitoxin.2HCl in enriched blank mussel yielded a certified mass fraction of 0.48 +/- 0.06 mg/kg. These certified reference materials for paralytic shellfish poisoning toxins in lyophilized mussel material are the first available for laboratories to test their method for accuracy and performance.     

Announcing a new international peer-reviewed journal:Food Science and Human Wellness now accepting manuscript submission in English

<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of the     

Chinese CTP Market

According to Printing and Printing Equipment Industries Association of China（PEIAC）＇s statistics to the plate manufucturer in China, in 2013, the actual offset plate production has reached 346 million square meters in China. Among them, the CTP production volume was 245 million square meters, up by 11% than that of last year; the total sales of the CTP plate was 239 million square meters, up by 13%.     

Preparatory Work of Print China 2015 is Going Smoothly

正Held at Guangdong Modern International Exhibition Center,Print China 2015 will cover 7exhibition halls,besides the original Hall No.3,4,5,6,7,the newly built F zone of Hall 3 will be used too.The total area will be140,000 square meters.Hall 3:Offset and large printing equipment,package printing equipment,post press