Developing crop descriptor lists - Bioversity International
Developing crop descriptor lists - Bioversity International
Developing crop descriptor lists - Bioversity International
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28 BIOVERSITY INTERNATIONAL TECHNICAL BULLETIN SERIES NO. 13<br />
Example #28<br />
Fruit shape<br />
1 Round<br />
2 Ovate<br />
3 Oblong<br />
4 Elliptic<br />
5 Obovate<br />
99 Other (specify in the <strong>descriptor</strong> Remarks)<br />
The states can be better defined by adding standards or check<br />
cultivars to the <strong>descriptor</strong> states to clarify the different states of<br />
expression of each trait.<br />
6.1.1 Qualitative <strong>descriptor</strong>s using nominal scale<br />
Nominal scales provide code numbers for traits that are defined<br />
by text (names or labels). They do not follow a numerical or logical<br />
order or ranking sequence and the codes are arbitrary numbers (e.g.<br />
pubescence, colour, shape).<br />
Example #29<br />
Fruit colour<br />
1 Yellow<br />
2 Orange<br />
3 Red<br />
4 Brown<br />
5 Purple<br />
99 Other (specify in the <strong>descriptor</strong> Remarks)<br />
Example #30<br />
Leaf type<br />
1 Tendril<br />
2 Phyllody<br />
3 Simple (lamina not bifurcated into leaflets)<br />
4 Bipinnate<br />
5 Multipinnate<br />
99 Other (specify in the <strong>descriptor</strong> Remarks) )
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