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Effective Jan. 1, 2025, the U.S. National Plant Germplasm System will modify its SMTA acceptance policy to distinguish between propagative and non-propagative germplasm.
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USDA National Plant Germplasm System
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Descriptor:
Ratio Midstalk Leaf Length:Width (UPOVLWRAT)
Download list of accessions evaluated for this trait
Definition:
Length:width ratio of a midstalk leaf
Crop:
TOBACCO
Category:
Morphological descriptors
Status:
Data Type:
Numeric descriptor
Maximum Length:
3
Minimum Value:
1
Maximum Value:
5
Responsible Site:
US Nicotiana Germplasm Collection (
TOB
)
Studies or environments
TOBACCO.UPOV.CLAYTON.2012
125 Accessions
TOBACCO.UPOV.CLAYTON.2013
51 Accessions
TOBACCO.UPOV.CLAYTON.2014
241 Accessions
TOBACCO.UPOV.CLAYTON.2015
231 Accessions
TOBACCO.UPOV.CLAYTON.2016
213 Accessions
TOBACCO.UPOV.CLAYTON.2017
234 Accessions
TOBACCO.UPOV.CLAYTON.2018
153 Accessions
TOBACCO.UPOV.OXFORD.2009
245 Accessions
TOBACCO.UPOV.OXFORD.2011
240 Accessions
Distribution of Values for
Ratio Midstalk Leaf Length:Width (UPOVLWRAT)
Range
Number of Accessions
1.0 - 1.4
29
1.4 - 1.8
263
1.8 - 2.2
822
2.2 - 2.6
294
2.6 - 3.0
176
3.0 - 3.4
176
3.4 - 3.8
18
3.8 - 4.2
9
4.2 - 4.6
0
4.6 - 5.0
3