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1986～1987年间,在实验室内和田间小区中检验了甘肃4个地区所产红豆草种样。共检出15个真菌种或属,即链格孢(Alternaria alternata)、红豆草壳二孢(Ascochyta onobrychidis)、灰葡萄孢(Botrytis cinerea)、多主枝孢(Cladosporium herbarum)、镰孢(Fusarium spp)、束状匍柄霉(Stemphylium sarciniiforme)、红豆草单胞锈(Uromyces onobrychidis)、立枯丝核菌(Rhizoctonia solani)、曲霉(Aspergillus spp)、青霉(Penicillium spp)、匍枝根霉(Rhizopus stolonifer)、毛壳(Chaetomium spp)、粉红端孢(Trichothecium roseum)和长蠕孢(Helminthosporium sp)。当地流行的大多数病原真菌均可借种子传播,并可穿透荚皮和种皮,升汞只能杀灭种子表面附着的真菌,而不能消灭子叶和胚内存在的真菌。较干燥地区所产种样的发芽率和健苗率显著高于较湿润地区所产种样的数据,而种子的真菌污染率与发芽率呈负相关。因此,作者们建议种子生产基地应建在较千燥地区,以使所产种子品质良好。荚果发芽率总是比种子的低得多,而其真菌污染率远比种子的高。当前的播种全荚果的习惯,似应改为播种去荚皮的种子。
From 1986 to 1987, the samples of sainfoin produced in 4 areas of Gansu were tested in the laboratory and in the field. A total of 15 fungal species or genus were identified as Alternaria alternata, Ascochyta onobrychidis, Botrytis cinerea, Cladosporium herbarum, Fusarium spp, Stemphylium sarciniiforme, Uromyces onobrychidis, Rhizoctonia solani, Aspergillus spp, Penicillium spp, Rhizopus stolonifer, Chaetomium spp, Trichothecium roseum and Helminthosporium sp. Most of the endemic pathogenic fungi can be transmitted by seed and can penetrate into the pod and seed coat. Mercuric chloride can only kill the fungi attached to the surface of seed, but can not eliminate the fungi in cotyledon and embryo. The germination rate and seedling growth rate of the samples produced in the drier areas were significantly higher than those of the samples produced in the wetter areas, while the fungal contamination rate of the seeds was negatively correlated with the germination rate. Therefore, the authors suggest that seed production bases should be built in arid areas so that the quality of the seeds produced is good. The pod germination rate is always much lower than the seed, while the fungal contamination rate is much higher than the seed. The current habit of sowing whole pods seems to be replaced by the sowing of seed.