Season and plant age effect evaluation of plantain for response to black sigatoka disease

Tipo de material: Texto

TextoSeries ; Crop Protection, 15(7), p.609-614, 1996Trabajos contenidos:

Mobambo, K.N
Gauhl, F
Pasberg-Gauhl, C
Zuofa, K

Tema(s):

Recursos en línea:

Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx

Resumen: The responsc of 110 plantain cultivars to black sigatoka caused by Mycosphaerella /ijiensis Morelet was studied in 1990/91 at IITA-Onnc. in southeastern Nigeria. under natural infection conditions. The plant crop cyclc was divided into three periods according to different combinations of climate and growth stages of the plant: rainy season before !lowering. dry season before flowering and rainy season after flowering. All plantain cultivars were rated susceptible because the final symptom stage developed within 11)-25 days. Before flowering. black sigatoka development was faster in the rainy season than in the dry season. Significant correlations were found between rainfall and incubation time (r = -0.62*. 11 = 12). Symptom evolution time and youngest leaf spotted were correlated both in the rainy season (r = -0.98***. 11 = 110)and the dry season (r =0.66***. n = 110)suggesting that data recording is marc effectivc in the rainy season than in the dry season. The higher correlation in the rainy season seems related to favourable conditions for host plant and fungus development. Both symptom evolution time and youngest leaf spotted were useful variables for determining host plant response to black sigatoka. In the rainy season after flowering. plantain cultivars developed symptoms of black sigatoka more slowly than in the rainy season before flowering. suggesting a change in the host susceptibility with age.

Tags from this library: No tags from this library for this title. Log in to add tags.

Average rating: 0.0 (0 votes)

Holdings
Item type	Current library	Collection	Call number	Status	Date due	Barcode
Documentos solicitados	CICY Documento préstamo interbibliotecario	Ref1	B-11605 (Browse shelf(Opens below))	Available

Browsing CICY shelves, Shelving location: Documento préstamo interbibliotecario, Collection: Ref1 Close shelf browser (Hides shelf browser)

Previous	No cover image available	No cover image available	No cover image available	No cover image available	No cover image available	No cover image available	No cover image available	Next
Previous	B-11602 Use of multivariate statistics for 16S rRNA gene analysis of microbial communities	B-11603 Aqueous extract of Carica papaya leaves exhibits anti-tumor activity and immunomodulatory effects	B-11604 Industrial enzyme applications	B-11605 Season and plant age effect evaluation of plantain for response to black sigatoka disease	B-11606 Ascospore release and dispersal in black leaf streak disease of bananas (Mycosphaerella fijiensis)	B-11607 Gene expression in grapevine cultivars in response to Bois Noir phytoplasma infection	B-11608 DNA gel electrophoresis: Effect of field intensity and agarose concentration on band inversion	Next

The responsc of 110 plantain cultivars to black sigatoka caused by Mycosphaerella /ijiensis Morelet was studied in 1990/91 at IITA-Onnc. in southeastern Nigeria. under natural infection conditions. The plant crop cyclc was divided into three periods according to different combinations of climate and growth stages of the plant: rainy season before !lowering. dry season before flowering and rainy season after flowering. All plantain cultivars were rated susceptible because the final symptom stage developed within 11)-25 days. Before flowering. black sigatoka development was faster in the rainy season than in the dry season. Significant correlations were found between rainfall and incubation time (r = -0.62*. 11 = 12). Symptom evolution time and youngest leaf spotted were correlated both in the rainy season (r = -0.98***. 11 = 110)and the dry season (r =0.66***. n = 110)suggesting that data recording is marc effectivc in the rainy season than in the dry season. The higher correlation in the rainy season seems related to favourable conditions for host plant and fungus development. Both symptom evolution time and youngest leaf spotted were useful variables for determining host plant response to black sigatoka. In the rainy season after flowering. plantain cultivars developed symptoms of black sigatoka more slowly than in the rainy season before flowering. suggesting a change in the host susceptibility with age.

There are no comments on this title.

to post a comment.