摘要
采用土表接菌和喷灌加湿方法,对7944份国内外大麦品种资源进行了抗赤霉病性鉴定。经1977—1987年的初筛、复筛和异地联合鉴定,筛选出抗病品种27个,中抗品种394个。统计分析表明,大麦品种对赤霉病的抗性,二棱比多棱强,裸大麦比皮大麦强;各品种类型中,又以二棱裸麦抗性最强。抗赤霉病的大麦品种资源,国内主要分布于病害流行的长江中、下游诸省(市);国外以日本、瑞典、丹麦等国品种中,抗性材料的出现机率较高。
During 1977—1987,7944 collections of barley varieties were tested
for resistance to fusarium graminearum.Barley plants in plots were inocu-
lated with infected barley kernels.To facilitate infection the plots were
sprinkled with water at heading peried of plant.
As a result,27 varieties showed more stability of resistance and 394
collections showed moderate resistance.
Based on statistical analysis of varietal reaction it was found that
the 2-rowed barley varieties had greater resistance to scab than the
4-rowed or the 6-rowed varieties.Moreover,the hulless varieties were
more resistant than the hulled varieties,especially the 2-rowed ones.
Our study revealed that some resistant and moderete resistant vari-
eties were distributed mainly in provinces of the middle and lower
reaches of Yangzi River,where scab disease prevails.Some collections
from Japan,Sweden and Daemark showed hight percentage in resistance
to scab.
出处
《植物保护学报》
CAS
CSCD
北大核心
1991年第3期261-265,共5页
Journal of Plant Protection
关键词
大麦
赤霉病
抗性
鉴定
barley
barley scab
resistance identification
