摘要
１９９８年，在大庆和安达地区采集连种抗线品种（系）不同年限的土样７份。在盆栽条件下重新用标准品种鉴定选择后的线虫群体的生理小种类型。其结果表明，大庆土样，连种抗线品种（系）１０年已改变为６号小种，连种３年已改变为４号小种；安达土样，连种抗线品种（系）６年改为１４号小种，连种４年改为１号小种，连种３年仍为３号小种，轮作均为３号小种。说明连作使生理小种类型发生变化，随连作年限差异生理小种变化各异；原来抗线品种（系）由于连作选择作用变为感染品种（系）。
Seven soil samples were collected from rotation
and continuous resistant varieties planting fields in Anda Agricultural Research Institute and
Daqing Agricultural Research Institute in 1998. Dynamic change of races of soybean cyst
nematode was studied with Golden method. The results of the study showed that there were not
only formerly reported race 3 of SCN but also race 4 and race 6 of SCN in Daqing areas, and
race 14 of SCN was found in Anda areas, under the condition that continuous planting of
resistant varieties to race 3 of SCN was undertaken.
出处
《黑龙江农业科学》
1999年第3期4-6,共3页
Heilongjiang Agricultural Sciences
关键词
大豆孢囊线虫
生理小种
连种
抗病
品种
Soybean cyst nematode, Races
of SCN, Cotinuous planting, Resistant Varieties
