Resistance in Digitaria to Yellow Sugarcane Aphid, Sipha flava (Forbes) as Related to Temperature and Rainfall

Autor:	A. J. Oakes, A. Sierra-Bracero
Rok vydání:	2021
Předmět:	Sipha flava Aphid Resistance (ecology) biology Agronomy business.industry Digitaria Pest control Animal Science and Zoology biology.organism_classification business Agronomy and Crop Science
Zdroj:	The Journal of Agriculture of the University of Puerto Rico. 56:33-38
ISSN:	2308-1759 0041-994X
DOI:	10.46429/jaupr.v56i1.10884
Popis:	Differential resistance to yellow sugarcane aphid, Sipha flava (Forbes), exists among Digitaria species. Differential resistance among species is expected on the basis of interspecific variation. Differential resistance to aphid damage exists among clones within species. Differences in insect resistance among clones within species are expected on the basis of intraspecific variation. Clones superior in insect resistance were delineated in this trial. The superior performance of phenotypes within species is masked by the average performance of the species. Significant negative correlations were found between insect resistance ratings and the number of rainy days and average temperature during a 28-day interval prior to rating. A model was calculated for the average behavior of species; it includes infestation expected on the basis of the number of rainy days and average temperature during the 28-day interval before rating. The model accounted for approximately 66 percent of the variability present.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::561be6317f8d85421d70c95dc84e2e65 https://doi.org/10.46429/jaupr.v56i1.10884 Zobrazit plný text záznamu