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马铃薯脱毒原原种微型化生产的技术关键在于控制植株个体生长;而其首要条件是种苗基础和营养水平.利用普通日光温室,在瓶苗假植或使用已有的微型薯育苗的基础上,采取砂床剪枝扦插和高密度少肥栽培生产微型薯,比移栽瓶苗或直播微型薯的办法更好.即在剪枝扦插后40天收获,平均获得单薯重1～5克的微型薯个数占总数的(76.0～91.6%,最高达100%.单薯重1克以上的4个规格1～3克、大于3克、大于5克、大于10克)微型薯直播亩产达1806～2194公斤,接近或超过大薯切块直播(1962公斤/亩),但4个规格微型薯的含量不呈规律性差异.单薯重小于1克的微型薯育苗移栽亩产达2299公斤,略高于大规格微型薯直播产量.但考虑其利用价值,将单薯重小于1克的微型薯作为脱毒原原种微型化生产的基础种苗使用更合适.
The key technology of miniaturization of potato detoxification is to control the individual plant growth, and the most important condition is the seedling basis and nutrition level.Using common sunlight greenhouse, the base of seedling planting or using the existing miniature potato seedling , It is better to adopt the method of sand bed pruning cuttage and high density and less fat cultivation to produce miniature potato than transplanting seedling or direct seeding miniature potato, (76.0-91.6%, up to 100%). The size of a single potato weighing 1 gram or more is 1 to 3 grams, more than 3 grams, more than 5 grams and more than 10 grams.) The mini potato broadcast Mu yield of 1806 ~ 2194 kg, close to or more than the big potato cut live (1962 kg / acre), but the four specifications of the micro-potato content is not regular differences in potato weight less than 1 gram of micro-potato seedlings transplanted acres Up to 2299 kilograms, slightly higher than the large-size mini-potato live production, but considering its value, it is more suitable to use miniature tubers with a potato weight less than 1 gram as the basic seedlings for miniaturization of the original detoxification seedlings.