干旱地区农业研究2012，Vol.35Issue(5)：51-55,5.
基质酸度对马铃薯植株生理特性及微型薯结薯能力的影响
Effects of different acidity on physiological characteristics of potato and tuberization of potato minituber
摘要
Abstract
In order to study the impact of medium pH value on the physiological characteristics and the tuberization capability of potato plantlet,the virus - free plantlets of potato cultivars (Sheopdy and Favorita) were transplanted into the vermiculite and were irrigated with MS medium with pH of 3,4,5,6 and 6.5 (control) . The result showed that the chlorophyll,nitrate nitrogen,phosphorus,potassium content and the SOD activity of the potato leaf,as well as the number of minituber and the average yield per plant of tested cultivars increased with increase of medium pH value,reached maximum at pH 6 and minimum at pH 3 . The chlorophyll content and SOD activity of Favorita plantlet with irrigation of MS medium at pH 6.0 were significantly different from control treatment (pH 6.5) . The proline content in the leaves of both cultivars declined with the increase of medium pH value. The lowest value was observed at pH 6 and the highest value at pH 3. Thus,it was suggested that the most suitable pH value for the potato plantlets growing in vermiculite was 6.关键词
马铃薯/基质酸度/生理特性/营养元素/微型薯产量Key words
potato plantlet/acidity/physiological characteristics/mineral nutrient/potato minituber分类
农业科技引用本文复制引用
李丹,王丽,刘玉汇,王蒂,张俊莲,白江平,杨乾..基质酸度对马铃薯植株生理特性及微型薯结薯能力的影响[J].干旱地区农业研究,2012,35(5):51-55,5.基金项目
甘肃省高等学校基本科研业务费项目(省财政2011kyyw-1) （省财政2011kyyw-1）
国家马铃薯产业技术体系项目(CARS-10-P18) （CARS-10-P18）
