Manipulation of plant architecture to enhance crop disease control.

• DOI: 10.1079/pavsnnr20072026
• Publication Date: 2007-09-10T05:50:52Z
• Authors: K. Ando; R. Grumet; K. Terpstra; J. D. Kelly
• Keywords: Genetic architecture; Microclimate; Plant disease; Plant Breeding

Abstract Yield and quality losses due to disease are major factors limiting crop productivity; thus breeding for resistance is a primary goal many plant programmes. Unfortunately, specific sources of not always available. In cases where genetic limited or non-existent, manipulating architecture facilitate avoidance may be valuable alternate approach mitigate severity. Modifications can used reduce contact with the pathogen, create barriers pathogen growth development, an unfavourable microclimate development. Architectural variants have long been observed by breeders geneticists, frequently utilized develop new types. Key that control include altered height, determinacy, branching patterns, branch leaf angle, flower position, organ coverage shape, root structure patterns. Implementing architectural requires understanding both life cycle basis desired morphological traits. This review examines examples modified employed disease. Among better-documented canopy white mould in dry bean tightly closed ears Fusarium ear rot maize. These demonstrate component broader strategy also includes cultural chemical controls.