研究光照强度、品种和水质对马铃薯试管苗生长的影响，为降低脱毒试管苗的扩繁成本及组培技术的优化提供参考。结果表明：14 h/d光照、强度为2000 lx，是马铃薯脱毒试管苗生长的最优光照条件，其次为自然光条件；在相同的生长条件下，品种‘黔芋1号’各农艺性状都优于‘青薯9号’；水质除叶片数和茎粗外，对其他农艺性状影响都不显著，即在生产过程中可用自来水代替蒸馏水，从而降低生产成本。%Light intensity, variety, and water quality were studied for their influence on the growth of plantlets invitroof potato in order to provide a reference for reducing cost and optimizing tissue culture technology. The results showed that the best light condition for growth of plantlets invitro was 14 h/d and light intensity 2 000 lx, and then was natural light;the agronomic traits of 'Qianyu 1' were better than 'Qingshu 9';water quality only had a significant impact on leaf number and stem diameter, but had no influence on other agronomic traits, and therefore, tap water instead of distil ed water should be used in plantlets in vitro production.
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