【摘要】 利用随机区组设计研究杂交松的百粒重和成苗率及其相关性,结果表明,不同组合的火加松成苗率之间差异不显著,而百粒重差异极其显著,火加松成苗率和百粒重之间的相关性不显著;湿加松种子百粒重和成苗率差异都极其显著,而且两者之间相关性达到显著水平(R=0.47)。湿地松×加勒比松的成苗率平均值(15.88%)低于火炬松×加勒比松的成苗率(23.22%),因此湿地松×加勒比松种子成苗率更低,需要重视杂交松的育苗管理。更多还原

【Abstract】 Research on 100-seed weight,germination and their relationship of Pinus hybrids by randomized block design showed that germination rate of different combinations of P.taeda×P.caribaea had no significant difference while the 100-seed weight had significant difference,and the relationship between them had no close relation.Germina tion rate and 100-seed weight of different combinations of P.elliottii×P.caribaea had evident difference and close relation.The average germination rate of P.elliottii×P.caribaea(15.88%) was much lower than that of P.taeda×P.caribaea(23.22%),thus making higher cost of seedling cultivation of P.elliottii×P.caribaea.更多还原