种子等级划分指标的确立及其相关关系

Determination on Dividing Index of Seed Grade and Its Interrelated Relation

依据内蒙古《主要造林树种种子分级》标准 ,利用数理统计的方法对收集自红花尔基、牡丹江、佳木斯、章古台、蒙古国等地的樟子松种子样品的净度、发芽率、生活力、优良度、千粒重进行检验分析得出 :划分种子等级的品质指标应以发芽率、生活力为主要指标 ;千粒重只能作划分种子等级的参数指标 ,优良度作划分种子等级的依据值得进一步探讨 ;净度是种子收购与贮藏的主要指标。

Based on test and analysis on germination percent, viability, excellence, thousand kernel weight and purity of seed sampling of Pinus sylvestris var. mongolica Litv, the results show that germination percent and viability should be the main index of dividing the seed grade; thousand kernel weight be the reference index; purity be the main index for purchasing and storing seed. It must be further discussed the excellence is basis of dividing seed grade.