Sclerotinia minor advances fruiting and reduces germination in dandelion (Taraxacum officinale)

被引:8
作者
Abu-Dieyeh, MH [1 ]
Bernier, J [1 ]
Watson, AK [1 ]
机构
[1] McGill Univ, Dept Plant Sci, Ste Anne De Bellevue, PQ H9X 3V9, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
fructification; Sclerotinia minor; Taraxacum officinale; turfgrass; bioherbicide; biocontrol;
D O I
10.1080/09583150500186662
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Sclerotinia minor Jagger is a promising biocontrol agent for dandelion in turfgrass. When a flowering dandelion population was treated with S. minor, flowering accelerated to the fruiting stage within 4 days. This developmental response was 4 - 5 days earlier than in the control, untreated plants and was not observed in herbicide- treated plants. Seeds obtained from the fungal-treated plants were smaller, lighter and their germination rate was reduced by 48.4 and 47.3% for spring and fall applications, respectively. S. minor was not detected in dandelion seeds from the fungal-treated plants. In addition to effective control of mature ( flowering) dandelions, seeds dispersed by dying plants have reduced germination and are not transferring S. minor off target.
引用
收藏
页码:815 / 825
页数:11
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