全文获取类型
收费全文 | 9404篇 |
免费 | 629篇 |
国内免费 | 626篇 |
出版年
2024年 | 17篇 |
2023年 | 95篇 |
2022年 | 219篇 |
2021年 | 455篇 |
2020年 | 311篇 |
2019年 | 377篇 |
2018年 | 368篇 |
2017年 | 273篇 |
2016年 | 359篇 |
2015年 | 572篇 |
2014年 | 682篇 |
2013年 | 744篇 |
2012年 | 832篇 |
2011年 | 776篇 |
2010年 | 456篇 |
2009年 | 425篇 |
2008年 | 492篇 |
2007年 | 407篇 |
2006年 | 369篇 |
2005年 | 315篇 |
2004年 | 265篇 |
2003年 | 243篇 |
2002年 | 197篇 |
2001年 | 176篇 |
2000年 | 152篇 |
1999年 | 142篇 |
1998年 | 104篇 |
1997年 | 97篇 |
1996年 | 83篇 |
1995年 | 72篇 |
1994年 | 82篇 |
1993年 | 66篇 |
1992年 | 72篇 |
1991年 | 67篇 |
1990年 | 69篇 |
1989年 | 51篇 |
1988年 | 34篇 |
1987年 | 35篇 |
1986年 | 22篇 |
1985年 | 27篇 |
1984年 | 10篇 |
1983年 | 16篇 |
1982年 | 8篇 |
1981年 | 4篇 |
1980年 | 6篇 |
1979年 | 6篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1972年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
171.
Wu Lipeng Wang Yidong Zhang Shirong Wei Wenliang Kuzyakov Yakov Ding Xiaodong 《Plant and Soil》2021,463(1-2):523-535
Plant and Soil - Soil was sampled (0–20 cm) from a 5-year Yellow River Delta paddy field experiment: no fertilizers (Control), mineral fertilizers (NPK), and NPK plus organic... 相似文献
172.
Wang Zhen Huang Xu Liu Juan Xiao Feiyao Tian Miaomiao Ding Shenghua Shan Yang 《Biotechnology letters》2021,43(11):2161-2183
Biotechnology Letters - In this study, 44 flavone synthases (FNS) and flavonol synthases (FLS) from different origins were collected. The instability index and conserved domain of the enzymes were... 相似文献
173.
174.
Fan Xiaohua Wang Chuanwei Han Junting Ding Xinli Tang Shaocan Ning Liping 《Neurochemical research》2021,46(8):2143-2153
Neurochemical Research - Transient receptor potential vanilloid 4 (TRPV4) is a Ca2+-permeable non-selective cation channel that is involved in the development of neuropathic pain. P2X7 receptor... 相似文献
175.
Ding Yuanting Liu Heng Cen Mofei Tao Yuxiang Lai Chencen Tang Zhi 《Neurochemical research》2021,46(2):265-275
Neurochemical Research - Alzheimer’s disease (AD) and diabetes mellitus (DM) share common pathophysiological findings, in particular, the mammalian target of rapamycin (mTOR) has been... 相似文献
176.
Minh Thuy Nguyen Lu Haoran Zhang Pengmin Li Wenfeng Zhong Shihua Ding Xiaodong Xiao Jialei Li Qiang 《Plant Molecular Biology Reporter》2021,39(4):792-800
Plant Molecular Biology Reporter - Plant SnRK1 kinases have been reported to participate in regulating many aspects of plant biology including resistance to biotic and abiotic stresses. Wild... 相似文献
177.
Yan Yan Zhao Sihan Ding Zehong Tie Weiwei Hu Wei 《Plant Molecular Biology Reporter》2021,39(3):607-616
Plant Molecular Biology Reporter - Cassava is an important starchy and food crop; however, the commercial value of cassava is seriously constrained by postharvest physiological deterioration (PPD).... 相似文献
178.
179.
Tingting Ding Feng Zhang Junxia Wang Fengxia Wang Jiajia Liu Chuantian Xie Yangjie Hu Eilon Shani Xiangpei Kong Zhaojun Ding Huiyu Tian 《The Plant journal : for cell and molecular biology》2021,106(4):928-941
The plant hormone auxin plays a critical role in root growth and development; however, the contributions or specific roles of cell-type auxin signals in root growth and development are not well understood. Here, we mapped tissue and cell types that are important for auxin-mediated root growth and development by manipulating the local response and synthesis of auxin. Repressing auxin signaling in the epidermis, cortex, endodermis, pericycle or stele strongly inhibited root growth, with the largest effect observed in the endodermis. Enhancing auxin signaling in the epidermis, cortex, endodermis, pericycle or stele also caused reduced root growth, albeit to a lesser extent. Moreover, we established that root growth was inhibited by enhancement of auxin synthesis in specific cell types of the epidermis, cortex and endodermis, whereas increased auxin synthesis in the pericycle and stele had only minor effects on root growth. Our study thus establishes an association between cellular identity and cell type-specific auxin signaling that guides root growth and development. 相似文献