Study on seed testing for Salvia miltiorrhiza / 中国中药杂志

<p><b>OBJECTIVE</b>To establish a seed testing methods for Salvia miltiorrhiza.</p><p><b>METHOD</b>Referring to the International Seed Testing Rules made by ISTA and the Seed Testing for Crops (GB/T3543. 1-1995) issued by China.</p><p><b>RESULT</b>The seeds are selected by winnowing; the seed purity is about 50%-60%; 100 grain weight is used to determine the quality of the seed; the seed moisture content is determined by air drying, the drying hour is 3 h. Seed viability is tested by TFC method.</p>

Study on seed determination practice in Polygala tenuifolia / 中国中药杂志

<p><b>OBJECTIVE</b>To control the seed quality market, a study on the seed determination practice in Polygala tenuifolia was carried out.</p><p><b>METHOD</b>By studying the thousand grain weight moisture content, viability, genuineness, purity and germination percentage, some indices of seeds were fixed to the standards. The seed determination practice in P. tenuifolia was established.</p><p><b>RESULT AND CONCLUSION</b>The practice could be utilized to control the seed quality of P. tenuifolia.</p>

Testing of seed-borne fungi of Glycyrrihiza seed and disinfection effect of several fungicides on seed-borne fungi / 中国中药杂志

<p><b>OBJECTIVE</b>To study the dominant seed-borne fungi of Glycyrrihiza seeds which were from different producing area and compare the disinfection effect of several fungicides on seed-borne fungi of Glycyrrihiza seed.</p><p><b>METHOD</b>Petri-dish testing was used to determine the external and internal seed-borne fungi and the disinfection effect of fungicides.</p><p><b>RESULT AND CONCLUSION</b>The result showed that the amount of spore on the surface of one Glycyrrihiza seed varied from 0.3% to 37.0% among samples. Penicillium spp. and Aspergillus spp. were the two major dominant fungi and there was few differences in the type of the fungi among producing areas but differences in the isolation frequency of the furgi; Penicillium spp. , Rhizopus spp. , Aspergillus spp. and Alternaria spp. were the internally dominant seed-borne fungi, including seed capsule and the internal tissue of seed and their fungi-carrying percentage was 8.0%-48.3% and 3.5%-42.0% respectively. There were differences in fungi percentage and dominant seed borne fungi among different producing areas. The disinfection effect of both mancozeb and thriam was up to 89.0%, so it is suggested to use them to disinfect Glycyrrihiza seed.</p>