论文部分内容阅读
:以延农黑 1号、延农 1号和通 35等 13个水稻品种的种子为外植体 ,研究了品种间愈伤组织生长量的差异 ,并对其中 7个品种的悬浮培养愈伤组织进行了植株再分化及品种与培养时间对植株再分化的影响。结果表明 :水稻品种间愈伤组织开始生长的时间、愈伤组织的直径和重量均有差异 ,与种皮色有关 ,黑米愈伤组织开始生长的时间早 ,直径和重量大于白米 ;品种间植株再分化率不同 ,再分化率与愈伤组织的生长量呈负相关 ;愈伤组织的培养时间越长 ,植株再分化率有下降的趋势
: Thirteen rice varieties, Yannonghei 1, Yannong 1 and Tong 35, were used as explants to study the differences in callus growth among cultivars and callus The effects of plant redifferentiation and variety and culture time on plant redifferentiation were also studied. The results showed that callus began to grow at the time of callus growth, callus diameter and weight were different, and the seed coat color, black callus began to grow early, diameter and weight greater than white rice; between varieties Re-differentiation rate of plants is different, the rate of re-differentiation and callus growth was negatively correlated; callus cultured longer, the rate of plant re-differentiation decreased