Method of producing virus free potato minitubers
US5419079A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jan 5, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S47/06
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
This invention discloses a method of producing virus-free potato minitubers, which includes the steps of selecting virus-free test-tube plantlets and stem sections cut from seedlings grown 30 days after cuttage of such virus-free test-tube plantlets as cuttaging seedlings, choosing vermiculite as cuttage medium, treating the cuttaging seedlings with plant growth regulators, keeping the growth conditions of the cuttaging seedlings at 25.degree. C. during the daytime and 12.degree.-17.degree. C. at night, relative humidity 95-100% during the early stage and 60-70% at the later stage, and a light duration of ten hours a day with illuminance of 400-600 lux, along with suitable field management of water and fertilizer. The virus-free potato minitubers can be harvested in 30 to 60 days.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.