思茅松太空诱变种、同批未诱变种、商品种、杂交种苗期生长节律初探

A preliminary study on seedling stage growth rhythm of the space mutagenesis seeds, the same batch did not mutagenesis seeds, the commodity seeds and the hybridization seeds of Pinus kesiya var. langbianensis

对思茅松太空诱变种、同批未诱变种、商品种、杂交种苗期生长节律进行定期观察,结果表明:思茅松苗期的苗高、地径生长具有明显的阶段性,大致可划分为4个阶段:出苗期、生长前期、速生期和生长后期。太空诱变种和同批未诱变种苗高生长表现较商品种、杂交种要好;杂交种地径生长始终表现出较大优势;商品种苗高、地径均低于其他。

Periodic observation the seedling stage growth rhythm of the space mutagenesis seeds,the same batch did not mutagenesis seeds,the commodity seeds and the hybridization seeds of Pinus kesiya var.langbianensis,the results showed that the height and ground diameter of seedling stage has obvious stage,and can be roughly divided into4stages:seedling stage,growth stage,rapid growth stage and the late stage.In this4treatments,the height of the space mutagenesis seeds and the same batch did not mutagenesis seeds were better than the commodity seeds and the hybridization seeds;the ground diameter of the hybridization seeds was best;the height and ground diameter of commodity seeds was worst.