【摘要】 为改善马铃薯组培苗的生长状态,本试验以Favorita组培苗为材料,研究培养基pH值、凝固剂和灭菌条件对马铃薯植株生长的影响。结果表明,在120℃灭菌20 min的培养基上,植株生长较好。培养基pH值为5.5时,植株最高,叶片数最多。植株在5.0 g/L车前子胶的培养基上生长健壮,干物质积累量最多。车前子胶培养基的渗透压最高,其凝胶强度仅为琼脂培养基的36.14%。更多还原

【Abstract】 In order to improve the growth vigor of potato plantlet, the plantlets of cultivar. Favorita were used as materials to investigate the effects of pH value, jelling agents and sterilization conditions on the growth of potato plantlets. The results showed that the plantlets grew better on the medium sterilized at 120℃ for 20 min. The plant height and the number of leaves were higher at pH 5.5. Compared with the agar medium, the plant lets grew more robustly and the dry matter accumulation was higher on the 5.0-g/L plantasan medium. Moreover, the plantasan medium had the highest osmotic pressure, and the gel strength was only 36.14% of that of the agar medium.更多还原