脱毒苗不同苗龄及移栽期对马铃薯原原种产量的影响

Effects on Pre-elite Seed Potato Yield of Different Seedling Ages and Transplanting Times of Plantlets in vitro

选用‘克新2号’脱毒苗为试验材料,采用单因素随机设计,苗龄试验设20,25和31 d,移栽期试验苗龄为28 d,设4月10日、5月16日、6月2日和7月7日,研究不同苗龄和移栽期对马铃薯原原种商品薯产量和总产量的影响。结果表明:苗龄在31 d的脱毒苗移栽,移栽期在4月10日,可以获得较高的总产量和商品薯产量。

The plantlets in vitro of the variety ＇Kexin 2＇ was selected as experimental material, and a single factor randomized complete block design was applied to investigate adequate seedling age and transplanting time for minituber production. Seedling age tested was 20, 25 and 31 days, and transplanting time was April 10 th, May 16 th, June 2nd and July7 th based on the seedling age of 28 days in order to study the effects of different seedling ages and transplanting times on marketable minituber yield and total minituber yield. The results indicated that high yields of both marketable minituber and total minituber were obtained when seedling age was at 31 days and transplanting was done on April 10 th.