CAJ | 학술논문

马铃薯茎基腐病是甘肃省发生面积大且危害严重的一种新发病害。试验对甘肃省马铃薯茎基腐病菌进行生物学特性研究。结果表明，该菌菌丝生长的温度范围是：最低10℃，最适25℃，最高35℃，40℃停止生长；该菌菌丝生长pH范围是：最低4.5，最适7.0，最高8.5，9.0停止生长；半光半暗有利菌丝生长；病菌能利用多种碳源，以D-半乳糖、可溶性淀粉、D-木糖最好，氮源以大豆蛋白胨、蛋白胨最适宜。研究为马铃薯茎基腐病的防治提供了理论依据。
마령서경기부병시감숙성발생면적대차위해엄중적일충신발병해。시험대감숙성마령서경기부병균진행생물학특성연구。결과표명，해균균사생장적온도범위시：최저10℃，최괄25℃，최고35℃，40℃정지생장；해균균사생장pH범위시：최저4.5，최괄7.0，최고8.5，9.0정지생장；반광반암유리균사생장；병균능이용다충탄원，이D-반유당、가용성정분、D-목당최호，담원이대두단백동、단백동최괄의。연구위마령서경기부병적방치제공료이론의거。
Biological characteristics of Rhizoctonia solani causing stem rot, one of potato serious diseases in Gansu Province, were studied in this research. The optimum temperature for vegetative mycelium growth was 25℃, and the minimum and the maximum were 10℃and 35℃, respectively. The mycelia could not grow at 40℃. The minimum pH for vegetative mycelium growth was 4.5, the optimum was 7.0 and the maximum was 8.5. The mycelia stopped the development at 9.0. The alternation of light and darkness favored the growth of mycelia. Monosaccharide, disaccharide and polysaccharide could be used by the pathogen, and D-galactose, soluble starch and D-xylose were the better carbon source used. For nitrogen source, soybean peptone and peptone were the best. This research provides a theoretical base for control of this disease.