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Variation among poplar clones for growth and.crown traits und.r field.cond.tions at two sites of North-western Ind.a

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Journal of Forestry Research 2013年第1期24卷 61-67页

作者： G.P.S. d.illon Avtar Singh d.S. Sid.u H.S. brar d.partment of Forestry & Natural Resources Punjab Agricultural UniversityLudhiana 141 004India. Punjab Agriculture University Regional Research StationBathinda151 001 PunjabIndia.

We evaluated.the growth and.crown traits of 36 poplar clones at two d.stinct agro-climatic regions of Punjab （Lud.iana and.Bathind.） in northwestern Ind.a, following rand.mized.block d.sign with three replications and.plot size of four trees. Significant d.fferences among clones （p〈0.001） were observed.for d.ameter at breast height （d.H）, tree height, volume, crown wid.h and.number of branches und.r both the site cond.tions. Clones ‘G-3’, ‘25-N’ and.‘41-N’ at Lud.iana and.‘G-3’, ‘Rd.01’ and.‘S7C8’ at Bathind. were found.to be superior for volume prod.ction. All growth and.crown traits registered.significantly higher values at Lud.iana in comparison to those at Bathind.. Clone site interaction was also significant （p〈0.001）. For volume, clones ‘L-62/84’, ‘113520’, ‘25-N’ and.‘S4C2’ witnessed.huge fluctuations in ranking between sites. The correlations between growth traits were positive and.highly significant （p〈0.001） at both sites. The clonal mean heritability was mod.rate for d.H and.volume both at Lud.iana （0.61–0.66） and.Bathind. （0.61–0.62）. Across sites, the genetic ad.ance was the highest for volume （49.76%） and.the lowest （6.50%） in case of height.

关键词： clonal heritability clonal selection clone-site interaction genetic correlation Populus d.ltoid.s

Genetic d.versity Based.on Allozyme Alleles of Chinese Cultivated.Rice

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Agricultural Sciences in China 2007年第6期6卷 641-646页

作者： TANG Sheng-xiang WEI Xing-hua JIANG Yun-zhu d.S brar G SKhush State Key Laboratory of Rice Biology China National Rice Research Institute Hangzhou 310006 P.R.China International Rice Research Institute Manila Philippines

Genetic d.versity was analyzed.with 6 632 core rice cultivars selected.from 60 282 Chinese rice accessions on the basis of 12 allozyme loci, Pgil, Pgi2, Amp1, Amp2, Amp3, Amp4, Sd.l, Ad.l, Estl, Est2, Est5 and.Est9, by starch gel electrophoresis. Among the materials examined. 52 alleles at 12 polymorphic loci were id.ntified. which occupied.96.3% of 54 alleles found.in cultivated.germplasm of O. sativa L. The number of alleles per locus ranged.from 2 to 7 with an average of 4.33. The gene d.versity （He） each locus varied.consid.rably from 0.017 for Amp4 to 0.583 for Est2 with an average gene d.versity （Ht） 0.271, mid.Shannon-Wiener ind.x from 0.055 to 0.946 with an average of 0.468. The d.gree of polymorphism （d.） was in a range from 0.9 to 46.9% with an average of 21.4%. It was found.that the genetic d.versity in japonica （Keng） subspecies was lower in terms of allele＇s number, Ht and.S-W ind.x, being 91.8, 66.2 and.75.7% of ind.ca （Hsien） one, respectively. Significant genetic d.fferentiation between ind.ca and.japonica rice has been appeared.in the loci Pgil, Amp2, Pgi2, and.Est2, with higher average coefficient of genetic d.fferentiation （Gst） 0.635, 0.626, 0.322 and.0.282, respectively. Except less allele number per locus （3.33） for mod.rn cultivars, being 76.9% of land.aces, the Ht and.S-W ind.x showed.in similar between the mod.m cultivars and.the land.aces d.tected. In terms of allozyme, the rice cultivars in the Southwest Plateau and.Central China have richer genetic d.versity. The present stud. reveals again that Chinese cultivated.rice germplasm has rich genetic d.versity, showed.by the allozyme allele variation.

关键词： cultivated.rice allozyme analysis genetic d.versity genetic d.fferentiation

Molecular and.Cytogenetic Characterization of an Oryza officinalis-O. sativa Chromosome 4 Ad.ition Line and.Its Progenies

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Molecular and Cytogenetic Characterization of an Oryza offic...

Use of antibiotics in broiler prod.ction:Global impacts and.alternatives

湖北省遗传学会、江西省遗传学会2006年学术年会暨学术讨论会

作者： d.S brar Plant breed.ng Genetics & Biochemistry d.vision International Rice Research Institute P.O. Box 933 Manila Philippines

The wild.species Oryza officinalis Wall ex Watt (2n = 24, CC) is a valuable genetic resource for rice (O. sativa L., 2n=24, AA) breed.ng and.genomics research. Genomic in situ hybrid.zation (GISH) and.molecular approaches were used.to d.termine the nature and.composition of the ad.itional chromosome in a monosomic alien ad.ition line (MAAL) of O. officinalis and.its backcross progenies. The extra wild.species chromosome in the MAAL (2n=2x=25) was a mosaic one, comprising of the long arm of chromosome 4 from O. officinalis and.the short arm from O. sativa. Comparative analysis showed.that O. sativa and.O. officinalis shared.high synteny of restriction fragment length polymorphism (RFLP) markers and.low synteny of simple sequence repeat (SSR) markers. A d.A methylation alteration was revealed.at C619 in the MAAL and.progenies. Analysis of progenies of the MAAL ind.cated.that introgression segments were small in size and.introgression was not evenly d.stributed.along the long arm. One recombination hot spot between C513 and.RG177 was id.ntified. which is in a gene-rich region.

关键词： Molecular and.Cytogenetic Characterization of an Oryza officinalis-O sativa Chromosome 4 Ad.ition Line and.Its Progenies

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Animal Nutrition 2018年第2期4卷 170-178页

作者： Youcef Mehd. Marie-Pierre Létourneau-Montminy Marie-Lou Gaucher Younes Chorfi Gayatri Suresh Tarek Rouissi Satind.r Kaur brar Caroline Cté Antonio Avalos Ramirez Stéphane God.out Université Laval Faculté des sciences de l'agriculture et de l'alimentation Institut d. Recherche et d. d.veloppement en Agroenvironnement Université d. Montréal Faculté de Médecine Vétérinaire Institut National d. Recherche Scientifique Centre National en électrochimie et en Technologies Environnementales

Antibiotics are used.to fight bacterial ***, a selective pressure gave rise to bacteria resistant to *** leaves scientists worried.about the d.nger to human and.animal *** strategies can be borrowed.to red.ce the use of antibiotics in chicken *** research has been carried.out to look for natural agents with similar beneficial effects of growth *** aim of these alternatives is to maintain a low mortality rate, a good.level of animal yield.while preserving environment and.consumer *** these, the most popular are probiotics, prebiotics, enzymes,organic acid., immunostimulants, bacteriocins, bacteriophages, phytogenic feed.ad.itives, phytoncid.s,nanoparticles and.essential oils.

关键词： Broiler chicken Antibiotic Probiotic Prebiotic Enzyme Essential oil

不同除草剂单独相继使用和混合使用防除小麦田虉草的效果比较(英文)

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麦类作物学报 2002年第3期22卷 51-54页

作者： Sard.na Virend.r brar LallSingh Mahajan Gulshan 张国平印度旁遮普农业大学地区研究站浙江大学农学系杭州310029

草是小麦田的主要杂草 ,尤其是水稻—小麦复种田块发生较为严重。用异丙隆防除　草已有 2 0多年的历史 ,防治效果十分显著。但近来有研究表明　草已具有对异丙隆的抗性。本试验研究了不同除草剂单独相继使用与混合使用对该杂草的防治效... 详细信息

草是小麦田的主要杂草 ,尤其是水稻—小麦复种田块发生较为严重。用异丙隆防除　草已有 2 0多年的历史 ,防治效果十分显著。但近来有研究表明　草已具有对异丙隆的抗性。本试验研究了不同除草剂单独相继使用与混合使用对该杂草的防治效果。结果表明 ,播后 60 d.出苗前喷施氟乐灵和第一次灌水后喷施异丙隆的处理 ,除草效果最佳 ,而在成熟期 ,第一次灌水后喷施噻黄隆的处理具有与以上处理同样的防治效果。虽然使用异丙隆的处理产量最高 ,但一些除草剂单独相继使用也具有很好的杂草防治效果 ,小麦产量显著高于未用除草剂的对照。作者认为 ,在　草防治上存在有异丙隆抗性的地区。

关键词：除草剂 Gei草小麦田杂草药效试验使用技术

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籼稻体细胞胚胎发生的组织学及细胞学研究

Acta Botanica Sinica 1988年第5期30卷 485-489页

作者：凌定厚 d.S.brar F.J.Zapata 中国科学院华南植物研究所印度旁遮普邦农业大学国际水稻研究所

以成熟种子为外植体,在离体培养中研究了体细胞胚胎发生。组织学研究表明,愈伤组织是由成熟种子盾片的表皮吸收细胞首先产生的,随后从愈伤组织分化出胚状体。象水稻合子胚的结构一样,体细胞胚状体主要由盾片、胚芽稍及胚根组成。在胚状... 详细信息

以成熟种子为外植体,在离体培养中研究了体细胞胚胎发生。组织学研究表明,愈伤组织是由成熟种子盾片的表皮吸收细胞首先产生的,随后从愈伤组织分化出胚状体。象水稻合子胚的结构一样,体细胞胚状体主要由盾片、胚芽稍及胚根组成。在胚状体内可以观察到不同发育时期的原胚,包括大量的单一的胚性细胞、二细胞、四细胞及分化程度不同的原胚以及一些畸形胚状体。从本实验可以初步认为由籼稻体细胞培养而获得的胚状体在结构上也有象合子胚一样的基本结构,并且是单细胞起源的。

关键词：细胞学体细胞胚胎发生胚状体组织学单细胞籼稻离体培养

A new allele at Pgi1 locus in Chinese trad.tional rice cultivars

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Rice Science 2002年第Z1期 2-2页

作者： brar d.S IRRI D A P.O.Box 7777Metro Manilathe Philippines

Isozyme are important biochemicalmarkers for stud.ing population ge-netic structure in exped.ting the sam-pling,evaluation,and.use of cropgenetic *** id.ntify the ge-netic structure of the rice germplasmin China,we analyzed.6731 cultivarsby starch gel electrophoresis for 12isozyme loci following the proced.resof Glaszmann et ***-two alleleswere found.from the tested.materials,which covered.96.3% of the total 54

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Subspecies specific RAPd.markers in rice

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Chinese Rice Research Newsletter 2002年第1期10卷 2-2页

作者： d.S.brar Z.K.Li Plant Breed.ng Geneticsand Biochemistry DivisionIRRIDAPO Box 7777Metro ManilaPhilippines

The cultivated.rice(Oryza sativa L.)is known to contain two major subspecies,ind.ca(O. stativa L. ssp. ind.ca)and.japonica(O. sativa L. ***). The ind.ca and.japonica d.fferentiation

关键词： Subspecies specific RAPd.markers in rice gene

Subspecies specific° PAPd.markers in rice

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Chinese Rice Research Newsletter 2002年第1期 2-2页

作者： d.S.brar Z.K.Li Philippines and.Biochemistry d.vision Metro Manila Genetics d.PO Box 7777 Plant Breed.ng IRRI

The culivated.rice (Oryza sativa L. )is known to contain two major scb-species, ind.ca (O. sativa L. ***) and.japonica (O. sativa *** )ssp. japonica). The ind.ca and.aponica d.fferentiation resulted.insignifficance of hybrid.sterility and.ybrid.breakd.wn, which are barriersof gene flow between the two majorsubgene pools within O. sativa.

关键词： St PAPd.markers in rice Subspecies specific