水杨酸和不同糖浓度对马铃薯试管微薯形成与生长的影响研究

分别在水杨酸和非水杨酸诱导下，研究了克新1号和青薯168脱毒苗在不同蔗糖浓度诱导培养基中试管微薯的发育状况。结果表明：水杨酸影响微薯形成率，而蔗糖影响膨大率，二者协同决定微薯数量和重量，无水杨酸诱导时，8%-10%糖浓度诱导效果最好，单瓶微薯数达20枚左右，单薯平均重量200mg,0.5mmol/L水杨酸诱导时，10%-12%蔗糖浓度效果最佳，单瓶微薯数达30-40枚，单薯平均重量超过100mg，有效微薯的绝对数量最多。

Effectof sucrose concentrations with or without SA onformation and growth of In vitro microtuber in potato

The formation and development of in vitro microtuber treated by SA and different sucrose concentrations are explored.The result show that,under the induction of non SA,8%~10% sucrose concentration is the best;0.5 mmol/L SA is in favour of increasing the number of microtuber while sucrose concentration is closely relevent to the size of microtuber.The best results are obtained when 10%~12% sucrose concentrations and 0.5 mmol/L SA are in the medium.The number of microtuber per vessel is 30~40 and the average weight per microtuber increased to more than 100 mg.