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在江苏农学院实验农场和美国路易斯安娜州立大学（ＬＳＵ）水稻试验站，同时种植抗源间杂交组合Ｊａｓｍｉｎｅ８５／特青的Ｆ４家系。纹枯病菌的接种试验表明，多数Ｆ４家系的病级与抗病亲本相似；少数家系的病级与感病对照Ｌｅｍｏｎｔ相似；其余家系的抗病水平明显高于它们的抗病亲本。试验进一步证明二抗源分别具有一对非等位显性抗纹枯病基因，二基因彼此独立，相结合时表现一定的加性效应。
At the experimental farm of Jiangsu Agricultural College and Rice Experimental Station of Louisiana State University (LSU), the F4 pedigree of Jasmine85 / Teqing was also planted. Inoculation tests on Rhizoctonia solani showed that the majority of F4 pedigrees were similar in disease resistance to the resistant parents; the susceptible parental Lemont was similar in a few families and the disease resistance of the other families was significantly higher than their resistant parents. The test further proves that the second source has a pair of non-allelic resistance to sheath blight genes, two genes independent of each other, when combined with the performance of a certain additive effect.