Inherited resistance to virus yellows in sugar beet

Publisher Website
Google Scholar
Abstract
Several independently inherited components of resistance to beet yellows virus (BYV) and beet mild yellowing virus (BMYY) have been identified in sugar beet. These include resistance to the aphid vectors of the viruses, resistance to virus inoculation and virus tolerance. Each component can be affected by many factors, some of which can seriously decrease the effectiveness of resistance. For example, factors which change the concentration of sugars or amino acids in the leaves often affect resistance to aphids and resistance to virus inoculation. Resistance can also be affected by varying the concentrations of certain major nutrients or trace elements in the soil, by shading the leaves or by foliar sprays of mineral oil or thiabendazole lactate. Several components of resistance to virus yellows have been combined and incorporated into monogerm sugar-beet varieties. These varieties should give an adequate control of virus yellows even if one resistance component becomes completely ineffective.

This publication has 0 references indexed in Scilit: