甜玉米制种技术

甜玉米制种是建水县种子管理站与广州市农科所合作的项目，始于2004年，当年春季在荒地试制1．56hm^2，总产1544．9kg，平均每公顷产988．5kg；秋季在陈官制种6．69hm^2，平均每公顷产259．2kg，最高每公顷产1092kg。2005年在陈官春播制种5．08hm。，平均每公顷产1404kg，最高每公顷产3340．95kg。2006年在羊街农场制种10．67hm^2，平均每公顷产634．5kg。     

水稻稻瘟病抗性基因研究综述

［1］Ahn S.N., Kim Y.K., Han S.S., Choi H.C., Moon H.P. and McCouch S.R., Molecular mapping of a gene for resistance to Korean isolates of rice blast, RGN, 1996,13, 74-76 ［2］Bonman J.M., Durable resistance to rice blast disease: environmental influences, Euphytica, 1992, 63, 115-123 ［3］Causse M.A., Fulton T.M., Cho Y.G., Ahn S.N., Chunwongse J., Wu K., Xiao J., Yu Z., Ronald P.C., Harrington S.E., Second G., McCouch S.R., and Tanksley S.D., Saturated molecular map of the rice genome based on an interspecific backcross population, Genetics, 1994, 138, 1251-1274 ［4］Donna P., Kiyosawa S., Ando I., and Furutani T., Estimation of functional value of field resistance genes to blast disease in some rice varieties, Breeding Science, 1994, 44, 285-293 ［5］Donna P., Ali M.S., Furutani T., and Kiyosawa S., Identification and isolation of blast resistance genes in three indica-type rice varieties, Breeding science, 1996, 46, 107-115 ［6］Fukuoka S., and Okuno K., QTL analysis for field resistance to rice blast using RFLP markers, RGN, 1997, 14, 98-99 ［7］Goto I., Jaw Y.L., and Baluch A.A., Genetic studies on resistance of rice plant to blast fungus IV. Linkage analysis of four genes, pi-a, pi-k, pi-z and pi-I, Ann. Phytopath. Soc., Japan, 1981, 47(2), 252-254 ［8］Hittalmani S., Foolad M.R., Mew T., Rodriguez R.L., and Huang N., Development of a PCR-based marker to identify rice blast resistance gene, Pi-2 (t), in segregating population, Theor. Appl. Genet., 1995, 91, 9-14 ［9］Inukai T., Zeigler R.S., Sarkarung S., Bronson M., Dung L.V., Kinoshita T., and Nelson R.J., Development of pre-isogenic lines for rice blast resistance by marker aided selection from a recombinant inbred population, Theor. Appl. Genet., 1996, 93,560-567 ［10］Inukai T., Nelson R.J., Zeigler R.S., Sarkarung S., Mackill D.J., Bonman J.M., Takamure I., and Kinoshita T., Allelism of blast resistance genes in near-isogenic lines of rice, Phytopathology, 1994, 84 (11), 1278-1283 ［11］Imbe T., Oba S., Yanoria M.J.T., and Tsunematsu H., A new gene for blast resistance in rice cultivar IR24, RGN, 1997, 14, 60-62 ［12］Kiyosawa S., Identification of blast resistance genes in some varieties, Japan J. of Breed, 1978, 28(4), 287-296 ［13］Ling Z.Z., Wang J.L., Pan Q.H., and Li M.F., Classification for blast resistance of some Japonica type varieties from Yunnan province, Scientia Agricultura Sinica, 1990a, 23(5), 5-11 ［14］Ling Z.Z., Pan Q.H., Huang S.Z., and Wang J.L., Rice breeding for resistance to blast, Fujian Publisher of sciences and technology, China Fujian, 1990b, 207-216 ［15］Miyamoto M., Ando I., Rybka K., Kodama O., and Kawasaki S., High-resolution mapping of the indica-derived rice blast resistance genes l. Pi-b, MPMI (Molecular plant microbe interaction), 1996, 9(1), 6-13 ［16］Mew T.V., Parco A.S., Hittalmani S., Inukai T., Nelson R., Zeigler R.S., and Huang N., Fine-mapping of major genes for blast resistance in rice, RGN, 1994, 11, 126-128 ［17］Mago R., Nair S., and Mohan M., Resistance gene analogues from rice: cloning, sequencing and mapping, Theor. Appl. Genet., 1999, 99, 50-57 ［18］Mackill D.J., and Bonman J.M., Inheritance of blast resistance in near-isogenic lines of rice, Phytopathology, 1992, 82, 746-749 ［19］Naqvi N.L., and Chattoo B.B., Molecular genetic analysis and sequence characterized amplified region assisted selection of blast resistance in rice, In International Rice Genetics III, IRRI, Manila, 1996, 570-572 ［20］Naqvi N.I., Bonman J.M., Mackill D.J., Nelson R.J., and Chattoo B.B., Identification of RAPD markers linked to a major gene for blast resistance in rice, Molecular breeding, 1995, 1, 341-348 ［21］Pan., Wang., and Tanisaka., A new blast resistance genes identified in the Indian native rice cultivar Aus373 through allelism and linkage tests, Plant Pathology, 1999, 48 (2),288-293 ［22］Pan Q.H., Wang L., Tanisaka T., and Ikehashi H., Allelism of rice blast resistance genes in two Chinese rice cultivars, and identification of two new resistance genes, Plant Pathology, 1998a, 47, 165-170 ［23］Pan Q.H., Wang L., Ikehashi H., Yamagata H., and Tanisaka T., Identification oftwo new genes conferring resistance to rice blast in the Chinese native “Maowangu“, Plant Breeding, 1998b, 117, 27-31 ［24］Pan Q.H., Wang L., Ikehashi H., and Tanisaka T., Identification of a new blast resistance gene in the indica rice cultivar Kasalath using Japanese differential cultivars and isozyme markers, Phytopathology, 1996,86 (10), 1071-1075 ［25］Rybka K., Miyamoto M., Ando I., Saito A., and Kawasaki S., High resolution mapping of the indica derived rice blast resistance genes II. Pi-ta and Pi-ta and a consideration of their origin, MPMI (Molecular plant microbe interaction), 1997, 10, 517-524 ［26］Richter T.E., and Ronald P.C., The evolution of disease resistance genes, Plant Molecular biology, 2000, 42, 195-204 ［27］Staskawicz B.J., Ausubel F.M., Kaker B.J., Ellis J.G., and Jones J.D.G., Molecular genetics of plant disease resistance, Science, 1995, 268, 661-667 ［28］Tabien R.E., Pinson S.R.M., Marchetti M.A., Li Z., Park W.D., Paterson A.H., and Stansel J.W., Blast resistance genes from Teqing and Lemont, in: G.S Khush (Ed.), Rice Genetics Newsletter III, IRRI, Manila, 1996, 451-452 ［29］Wang Z.X., Yano M., Yamanouch U., Iwamoto M., Monna L., Hayasaka H., Katayose Y., and Sasaki T., The Pi-b gene for rice blast resistance belongs to the nucleotide binding and leucine-rice repeat class of plant disease resistance genes, The plant Journal, 1999, 19(1), 55-64 ［30］Wang G.L., Mackill D.J., Bonman J.M., McCouch S.R., Champoux M.C., and Nelson R.J., RFLP mapping of genes conferring complete and partial resistance to blast in a durably resistance rice cultivar, Genetics, 1994, 136,1421-1434 ［31］Yu Z.H., Mackill D.J., Bonman J.M., McCouch S., Guiderdoni E., Notteghem J.L., and Tanksley S.D., Molecular mapping of genes for resistance to rice blast (Pyricularia grisea Sacc.), Theor. Appl. Genet., 1996, 93, 859-863 ［32］Yu Z.H., Mackill D.J., Bonman J.M., and Tanksley S.D., Tagging genes for blast resistance in rice via linkage to RFLP markers, Theor. Appl. Genet., 1991, 81, 471-476 ［33］Zhu L.H. Location of unknown gene of rice blast resistance Using molecular markers, Chinese Science (B), 1994, 24(10), 1048-1052 ［34］Zheng K.L., Qian H.R., and Zhuang J.Y., Tagging rice blast resistance genes via DNA Marker, ACTA Phytopathologica SINICA, 1995, 25(4), 307-313     

水稻收获指数相关性状的研究

广东省农科院水稻研究所育成的水稻品种粤香占在9 000 kg/hm2的条件下收获指数达到0.6以上,比普通品种提高约0.1.以粤香占为材料、七丝占(收获指数为0.4)为对照进行水稻收获指数相关性状研究,结果表明:获得高收获指数不是仅靠增加单株产量,而要在增加单株产量的同时适当增加抽穗前植株高度使茎叶重达到一定的程度,同时使始穗期后物质运输主要贡献在穗部,而非茎长增量;收获指数遗传力极低,表现为典型的数量性状特点,各收获指数有关性状间关系十分复杂,茎长增量、始穗株高和成熟株高也许可作为间接影响收获指数的要素.     

浅析油松人工林衰弱枯死原因及防治对策

油松(Pinus tabulaeformis Carr)是我国各大城市重要的绿化树种之一,文章通过实地调查,分析了包头市区绿化树种油松的分布情况及应用现状,并提出相应的保护措施。     

应用~(15)N对花生氮素化肥经济施用技术的研究——第Ⅰ报 吸收利用率、残留量及损失量

为考察花生对氮素化肥不同用量的吸收利用率、残留量及损失量,在1982年预备性试验的基础上,1983年应用稳定性同位素~(15)N,在砾质砂土上进行了盆栽花生试验,今将试验结果简报如下:     

大地飞歌——固铂轮胎2009行走无疆活动纪实

人的一生非常短暂，如果寿命有80岁，也不过两万九千两百多天。人又是如此的渺小，穷其一生，也很难走遍整个世界。每个人能够做到的睢有“精彩每一天”！在2009年度的行走无疆，固铂车队带着自由和探索，带着坚毅和信念，迎接每一次挑战，从武汉出发，环绕大西南和大西北最后回到西安，勇闯天下！     

红豆杉枝插容器育苗技术

红豆杉大规模育苗的优选方案是枝插容器育苗 ,技术关键包括苗床设置、扦插基质、容器选择与装钵技巧、插穗选择与处理、扦插方法、扦插时期、插后水肥与光照管理及幼苗培育等 ,其中水分和光照管理最为重要     

水稻稻瘟病抗性基因研究综述

In this paPer，authors gave the review of research progress in rice blast resistance genes．Number of genes conferring rice blast，widely used resistant materials to blast and method of rice blast identification have been summaried in details．The strategies of rice blast resistance breeding are also discussed．     

山东花生五十年回顾与展望

新中国成立后，特别是党的十一届三中全会以来，山东花生发展迅速，成就辉煌。经历了恢复和发展、徘徊、大发展和持续发展四个时期。山东花生迅速发展的根本原因，一靠政策，调动农民种花生的积极性；二靠科技，提高花生生产技术水平；三靠投入，改善生产条件。２０００～２０１０ 年，山东花生前景广阔，仍将保持生产的优势地位和持续稳定的发展势态     

华南超大穗型水稻种质 DS23“源 - 库 - 流”特征及其超高产潜力研究

【目的】研究超大穗型水稻新品系 DS23 在早季的产量表现和“源 - 库 - 流”特征，探明 DS23“源 - 库 -流”特征及其超高产潜力挖掘方向，为华南早稻高产育种与栽培提供理论依据。【方法】以超大穗型新品系DS23 为供试材料，以中大穗型品种粤禾丝苗为对照，在大田条件下开展研究。试验测定并比较了不同穗型水稻的叶面积指数、SPAD 值、茎鞘非结构性碳水化合物（Non structural carbohydrate，NSC）积累与转运特征、穗茎节间解剖特征、产量及其构成因子等性状。【结果】DS23 每穗总粒数、粒重、库容量和产量分别比粤禾丝苗增加 37.3%、4.0%、33.7% 和 15.9%，有效穗数和结实率比粤禾丝苗显著降低 6.8% 和 15.1%。两品种间抽穗期叶面积指数和剑叶 SPAD 值无显著差异。与粤禾丝苗相比，DS23 抽穗期茎鞘 NSC 积累量与茎鞘 NSC 对籽粒的表观贡献率分别显著降低 15.3% 和 19.8%，茎鞘 NSC 表观转运率显著提高 10.3%，大维管束数量显著增加 17.3%，两品种穗茎大小维管束面积无显著差异；DS23 粒叶比无显著变化，糖花比显著降低 34.2%，维管束负荷量指标增加 20.4%~60.2%。【结论】超大穗型水稻 DS23 在早季种植库容量大、穗颈节间转运组织发达、后期物质转化能力强，高产与增产潜力大，提高结实率是挖掘其超高产潜力的主要方向，研究结果可为超大穗型早稻品种选育与高产栽培技术研发提供理论依据。