| dc.creator |
MAZZAFERA PAULO |
|
| dc.date |
1999 |
|
| dc.date.accessioned |
2013-05-29T21:46:08Z |
|
| dc.date.available |
2013-05-29T21:46:08Z |
|
| dc.date.issued |
2013-05-30 |
|
| dc.identifier |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000200018 |
|
| dc.identifier |
http://www.doaj.org/doaj?func=openurl&genre=article&issn=00068705&date=1999&volume=58&issue=2&spage=387 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/jspui/handle/123456789/2146 |
|
| dc.description |
The effect of nutrient supply on the caffeine content of coffee (Coffea arabica L.) leaves was investigated. Seeds were germinated in nutrient-agar media lacking N, P, K, Ca, Mg, S, Zn, B or Mo. The control treatment contained all essential nutrients. The caffeine concentration was determined seven months after seed sowing when the seedlings have 3 to 4 pair of leaves. The omission of K induced the highest caffeine content in the leaves (24.5 g.kg-1). Caffeine in the control treatment was 21.9 g.kg -1. Absence of P induced the lowest content, 17.5 g.kg-1. |
|
| dc.publisher |
Instituto Agronômico de Campinas |
|
| dc.source |
Bragantia |
|
| dc.subject |
caffeine |
|
| dc.subject |
Coffea arabica L. |
|
| dc.subject |
mineral nutrition |
|
| dc.title |
Mineral nutrition and caffeine content in coffee leaves |
|