dc.contributor.author |
Rajapakse, R.G.A.S. |
|
dc.contributor.author |
Ranasinghe, J.A.D.A.R. |
|
dc.date.accessioned |
2023-05-03T04:19:31Z |
|
dc.date.available |
2023-05-03T04:19:31Z |
|
dc.date.issued |
2002-07-23 |
|
dc.identifier.issn |
1391-3646 |
|
dc.identifier.uri |
http://ir.lib.ruh.ac.lk/xmlui/handle/iruor/12537 |
|
dc.description.abstract |
Anthracnose disease significantly affect the yield an d fru it quality of chilli (Capsicum annum L.).
None of the chilli varieties was resistant to anthracnose b ut th ere was no reliable method to identify
resistant varieties. Therefore, experiments were conducted to develop a suitable variety screening
method to identify anthracnose resistant varieties o f chilli u n d e r field conditions. The pathogen
found in th e North-Central region of Sri L an k a was Colletotrichum ca p sid . Conidia of
Colletotrichum capsid germinate an d differentiate into ap p resso ria on fru it surfaces a t all
maturity stages, b u t the highest rates occurred on surfaces of red rip e fruits. Anthracnose lesions
initiate afte r fruits had ripened. These findings showed th a t chilli fru its a t red ripe stage are more
susceptible to Colletotrichum ca p sid th an green fruits. Suitable method of variety screening
against anthracnose is spraying of spore suspensions of Colletotrichum ca p sid (10s conidia ml
water) a t red ripe stage o f fruits followed by spraying w a te r from n ext day fo r a one week period a t
a frequency of two times p e r day. Percentage incidence of an th ra cn o se affected fruits could be
used to identify re sistant varieties. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Faculty of Agriculture, University of Ruhuna, SriLanka |
en_US |
dc.subject |
Appressoria |
en_US |
dc.subject |
Colletotrichum capsici |
en_US |
dc.subject |
Conidia |
en_US |
dc.subject |
Capsicum annum |
en_US |
dc.title |
Development of variety screening method for anthracnose disease of chilli (Capsicum annum L.) under field conditions |
en_US |
dc.type |
Article |
en_US |