Accounting for biotic spatial variability in fields: Case of resistance screening against sunflower Verticillium wilt.

ABSTRACT: In breeding for disease resistance, the magnitude of the genetic response is difficult to appreciate because of environmental stresses that interact with the plant genotype. We discuss herein the fundamental problems in breeding for disease resistance with the aim being to better understand the interactions between plant, pathogen, and spatial patterns. The goal of this study is to fine tune breeding decisions by incorporating spatial patterns of such biotic factors into the definition of disease-occurrence probability. We use a preexisting statistics method based on geostatistics for a descriptive analysis of biotic factors for trial quality control. The plant-population structure used for spatial-pattern analysis consists of two F1-hybrid cultivars, defined as symptomatic and asymptomati

SUBMITTER: Missonnier H 

PROVIDER: S-EPMC5560633 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature