品种基因型和温度对马铃薯脱毒试管苗农艺性状的影响

以大西洋、克新1号、青薯168脱毒基础苗为试验材料,采用二因素随机区组设计,研究不同基因型品种、不同温度对马铃薯脱毒基础苗苗鲜重、根鲜重、苗干重、根干重、叶片数、株高、茎粗、根长和根条数影响,培养14d时,测定各性状指标.结果表明,3个不同成熟期基因型品种、3种不同培养温度处理对马铃薯单株平均根鲜重、叶片数、株高影响有显著性交互作用(p＜0.05),其余性状受品种基因型和温度交互作用影响不显著.不同基因型品种对苗干重、根干重、叶片数、根条数农艺性状指标影响显著(p＜0.05),其余性状指标未达显著影响；不同培养温度对马铃薯单株平均苗鲜重、根鲜重、苗干重、根干重、茎粗、根长、根条数(p＜0.05)农艺性状指标有显著性影响(p＜0.01),其余性状指标未达显著影响；3个不同基因型品种所需的适宜培养温度为(23±2)℃,此培养温度时,3个品种基因型的农艺性状表现最好.

Effects of Varities Genotype and Temperature on the Agronomic Character of Virus-free Shoot of Potato in Vitro

Different genotypes and different temperature on shoot fresh weight,shoot dry weight,root fresh weight,root dry weight,the number of leaves,plant height,stem diameter,the length of root and root number were investigated using potato virus-free seedling in "Atlantic","Kexin No.1" and "Qingshu168" as trial materia,using the method of Randomized block design of two factors.And measured some properties index after training 14days,The results showed that genotypes and temperature had significant interact effection on the root fresh weight,root dry weight and plant height(p<0.05),but other properties index had no significant effect.Genotypes could affect shoot dry weight,root dry weight,the number of leaves,and root number(p<0.05).Different temperature had significant effect on shoot fresh weight,shoot dry weight,root fresh weight,root dry weight,stem diameter,the length of root and root number(p<0.05),but other properties index had no significant effect.So the optimal temperature for the three genotypes was(23±2)℃.