全文获取类型
| 收费全文 | 284篇 |
| 免费 | 27篇 |
专业分类
| 林业 | 19篇 |
| 农学 | 24篇 |
| 基础科学 | 1篇 |
| 23篇 | |
| 综合类 | 47篇 |
| 农作物 | 5篇 |
| 水产渔业 | 16篇 |
| 畜牧兽医 | 167篇 |
| 园艺 | 4篇 |
| 植物保护 | 5篇 |
出版年
| 2020年 | 5篇 |
| 2019年 | 7篇 |
| 2018年 | 10篇 |
| 2017年 | 8篇 |
| 2016年 | 7篇 |
| 2015年 | 8篇 |
| 2014年 | 12篇 |
| 2013年 | 26篇 |
| 2012年 | 9篇 |
| 2011年 | 11篇 |
| 2010年 | 11篇 |
| 2009年 | 15篇 |
| 2008年 | 9篇 |
| 2007年 | 15篇 |
| 2006年 | 6篇 |
| 2005年 | 6篇 |
| 2004年 | 6篇 |
| 2003年 | 11篇 |
| 2002年 | 10篇 |
| 2001年 | 12篇 |
| 2000年 | 3篇 |
| 1999年 | 4篇 |
| 1998年 | 16篇 |
| 1997年 | 17篇 |
| 1996年 | 13篇 |
| 1995年 | 3篇 |
| 1994年 | 5篇 |
| 1993年 | 4篇 |
| 1992年 | 2篇 |
| 1991年 | 2篇 |
| 1990年 | 4篇 |
| 1989年 | 3篇 |
| 1988年 | 4篇 |
| 1987年 | 2篇 |
| 1985年 | 2篇 |
| 1984年 | 2篇 |
| 1982年 | 1篇 |
| 1981年 | 1篇 |
| 1979年 | 1篇 |
| 1977年 | 1篇 |
| 1975年 | 2篇 |
| 1974年 | 2篇 |
| 1971年 | 1篇 |
| 1969年 | 2篇 |
| 1967年 | 1篇 |
| 1963年 | 1篇 |
| 1955年 | 1篇 |
| 1941年 | 1篇 |
| 1940年 | 1篇 |
| 1935年 | 1篇 |
排序方式： 共有311条查询结果，搜索用时 15 毫秒
1.
2.
3.
Assessment of EST- and genomic microsatellite markers for variety discrimination and genetic diversity studies in wheat 总被引：22，自引：0，他引：22
Fiona Leigh Vince Lea John Law Petra Wolters Wayne Powell Paolo Donini 《Euphytica》2003,133(3):359-366
It is likely that in the near future sequence information from sequencing programmes and EST libraries will generate an abundance
of genic microsatellite markers. This study is focused on the assessment of their likely impact and performance vis-à-vis
their genomic counterparts. Microsatellites from two sources were used to assess the genetic diversity in 56 old and new varieties
of bread wheat on the UK Recommended List. A set of 12 microsatellite markers generated from genomic libraries and 20 expressed
sequence tag (EST)-derived microsatellites were used in the study, and the performance of both marker sets assessed. The EST-derived
or genic microsatellites delivered fingerprints of superior quality, amplifying clear products with few stutter bands. Diversity
levels as revealed bygenic microsatellites are similar to the few published results. The PIC values for the genic markers
were generally lower than those calculated for the genomic microsatellites, though advantages of both marker classes for variety
identification applications are discussed.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
4.
张端 《河北北方学院学报(自然科学版)》2001,(4)
党的第三代领导集体创造性地运用邓小平的社会发展战略思想,提出了“科教兴国” 和“可持续发展”战略,推动着邓小平提出的“三步走”战略向着既定的目标前进。这是第三代领导集体对社会主义发展战略的新贡献。 相似文献
5.
G R Law 《Science (New York, N.Y.)》1967,156(3778):1106-1107
Two electrophoretic vari ants of leucine aminopeptidase show direct association with two genetically controlled forms of alkaline phosphatase. Treatment of plasma with neuraminidase converted the faster-migrating form of both enzymes to slower-moving forms, but plasmas with slowermigrating forms were unaffected by this treatment. The two forms of the enzymes may be due to the presence or absence of a single gene controlling the attachment of sialic acid to the enzyme molecules. 相似文献
6.
7.
A 4-month-old Thoroughbred filly presented for abdominal pain was diagnosed with a T-shaped malformation of the ventral colon at exploratory laparotomy. Following resection and anastomosis of the large colon, no further episodes of abdominal pain occurred during a 12-month follow-up. Acute dehiscence of the linea alba occurred as a complication of the initial laparotomy, but was successfully managed following additional surgical repair. T-shaped malformation of the ventral colon has not previously been reported and is considered a congenital malformation of mesocolon formation. 相似文献
8.
9.
10.