TY  - GEN
T1  - Evaluation of cocoa genotypes to witches'broom disease (Crinipellis perniciosa) using phloem sap
A1  - Bastos, C.N.
LA  - English
PB  - Malaysian Cocoa Board
YR  - 2015
UL  - http://discoverylib.upm.edu.my/discovery/Record/oai:http:--agris.upm.edu.my:0-10344
AB  - Witches' broom disease caused by Crinipellis perniciosa is the limiting factor in the development of cocoa (Theobroma cacao) in Brazil. The only effective control measure is through phytosanitation and the use of resistant cocoa genotypes. Brazil has the world's largest cocoa germoplasm collection established at the Station of Genetic Resources of Cocoa, Marituba, Para but identification of resistant genotypes has been hampered by several factors. We have report the feasibility of identifying cocoa genotypes resistant to C. perniciosa through basidiospore germination on cocoa phloem sap extracted from adult trees. Phloem sap cocoa genotypes with field resistance as CAB 270, CAB 208, CAB 214 and CCN 51 totally inhibited basidiospore compared to no effect by sap from succeptible genotypes (ICS 39, PA 195, CAB 155, CAB 0112 and Catongo). These results indicate that this technique provides a simple and quick alternative method to screen for resistance of cocoa to C. perniciosa.
KW  - CRINIPELLIS PERNICIOSA
KW  - THEOBROMA CACAO
KW  - PLANT PROTECTION
KW  - DISEASE CONTROL
KW  - PHLOEM
KW  - GENOTYPES
KW  - GERMINATION
KW  - BRAZIL
KW  - PROTECTION DES PLANTES
KW  - CONTROLE DE MALADIES
KW  - PHLOEME
KW  - GENOTYPE
KW  - BRESIL
KW  - PROTECCION DE LAS PLANTAS
KW  - CONTROL DE ENFERMEDADES
KW  - FLOEMA
KW  - GENOTIPOS
KW  - GERMINACION
KW  - BRASIL
KW  - http://www.fao.org/aos/agrovoc#c_33673
KW  - http://www.fao.org/aos/agrovoc#c_7713
KW  - http://www.fao.org/aos/agrovoc#c_5978
KW  - http://www.fao.org/aos/agrovoc#c_2327
KW  - http://www.fao.org/aos/agrovoc#c_5787
KW  - http://www.fao.org/aos/agrovoc#c_3225
KW  - http://www.fao.org/aos/agrovoc#c_3247
KW  - http://www.fao.org/aos/agrovoc#c_1070
ER  -