四川大麦种子寄藏真菌的研究

A STUDY ON PATHOGENIC FUNGI BORN ON OR IN THE SEEDS OF BARLEY CULTIVARS(LINES)INTRODUCED INTO SICHUAN

在四川省19个大麦品种中,每粒种子上相对孢子负荷量最大的是82—14和 S_3等。带菌种类最多的是 Ustilago,其次是 Alternaria。种子内部带菌种类最多的是 Alternaria tenuis 和 Alternaria raphani,分别占59.42%和15.21%。试验表明,大麦种子带菌是普遍的。

Investigations were made into seed born fungi carried in/on the seeds of 19 barley cultivars(or lines)recently introduced into Sichuan.Cultivars(or Iines)with the most heavy relative spore load are 82 14and S_3.While Ustilago and Alternaria are the ungi met with high fre-quency in the washing process,Alternaria tenuis and A.raphani are isolated most likely from inward of the seed,with a rate of 59.42% and15.21% respectively.The results indicate that the issue of fungus-bornbarley seeds is a problem worth of public concern.