An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Jammer A, Albacete A, Schulz B, Koch W, Weltmeier F, van der Graaff E, Pfeifhofer HW, Roitsch TG.Jammer A, et al.Plant Direct. 2020 Aug 1;4(7):e00221. doi: 10.1002/pld3.221. eCollection 2020 Jul.Plant Direct. 2020.PMID: 32766510Free PMC article.