不同植期与栽培方式对甘蔗黄叶病的影响

Different explants with different cultivation methods on the impact of Yellow leaf syndrome

对我国近年来甘蔗育种常用亲本在不同植期与不同栽培条件下的黄叶综合症(YLS)发病情况进行调查研究。结果表明:不同品种之间的发病时间存在着明显差异,最大可相差到6个月,我国育成的品种发病时间普遍比美国引进品种晚。品种的种植和管理方式对甘蔗YLS的发生影响很大。同一品种的不同植期及同一品种的不同栽培方式对甘蔗黄叶病发病时间均存在着差异。同一品种的不同植期,宿根蔗YLS发病时间早于新植蔗的发病时间,最早可提前4个月感病。同一品种的不同栽培方式,大田栽培方式YLS发病时间也早于桶栽的栽培方式,最早可提前4个月感病。

50 of China＇s sugar cane used in different parents with different explants cultivated under the conditions of the incidence of sugarcane yellow leaf virus of investigation and research. The results showed that between different species significant difference in survival time of onset, maximum difference of 6 months, varieties bred in China onset generally later than in the United States to introduce variety. Species of cultivation and management of sugarcane a great influence on the occurrence of YLS. The same species of different planting period and the same species of different cultivation methods on Yellow leaf syndrome disease at all times there are differences. Planting the same variety of different period of ratoon sugarcane YLS onset time is earlier than the onset of newly planted sugar cane, as early as four months in advance suseeptible. The same species of different cultivation methods, field cultivation YLS onset time is earlier than the barrel planted cultivation methods, as early as four months in advance susceptible.