Multileaf lettuce
US6320104A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01H5/12
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a new characteristic of lettuce which is referred to as multileaf characteristic and comprises the capacity to cause the formation in lettuce plants with a determined leaf morphology at the ready-to-harvest stage of significantly more leaves than in lettuce plants with the same leaf morphology which do not contain the characteristic. The term "significantly more" comprises: at least 11/2 times as many as a lettuce type with a comparable leaf morphology, preferably at least twice as many, more preferably at least 21/2 times as many, most preferably at least 200 leaves, at a ready-to-harvest stage and a determined head weight. The invention further provides a lettuce plant of the genus Lactuca in addition to a lettuce plant of the species Valerianella locusta L. (lamb's lettuce), both with the multileaf characteristic, seed of such lettuce plants and heads of lettuce.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.