Introduction and evaluation of coffee leaf rust race differential cultivars of Arabica coffee :
Several arabica coffee cultivars with partial resistance to coffee leaf rust (Hemileia vastatrix Berk. et Br.) were evaluated using a completely randomized block design. These cultivars were introduced from Portugal's Centro de Investigaçao das Ferrugens do Cafeeiro, and were coded: PNI046, PNI049, PNI050, PNI051 and PNI052. Arusha, a commercial cultivar, was used as a standard. At the end of the 3-year cropping period, the cultivar PNI050 produced an average of 2583 kg green bean per hectare, followed by PNI049 on 2399 kg. PNI051 produced the lowest yield of 1884 kg green bean per hectare. The three highest yielding cultivars also attained the highest stem diameter of 69.21 mm. 67.18 mm and 66.01 mm respectively. PNI051 was the best cultivar in terms of parchment out-turn ratio, while Arusha was the worst. For cherry: green bean ratios, PNI051 achieved the best ratio, while the lowest out-turn was attained by PNI052. In terms of green beans, Arusha produced 85.1 percent after hulling. The worst cultivar in this respect was PNI052 on 78.6 percent. On the whole, the new cultivars produced reasonable yields, with good quality attributes.
| Main Author: | |
|---|---|
| Format: | biblioteca |
| Language: | eng |
| Published: |
1993
|
| Subjects: | COFFEA ARABICA, HEMILEIA VASTATRIX, ENFERMEDADES FUNGOSAS, RESISTENCIA A LA ENFERMEDAD, CULTIVARES, |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|