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本文研究了从机械冷库调出的新油松种子在室温条件下干藏六年期间的质量变化。结果表明:反映种子发芽能力的主要指标发芽率和发芽势在调出冷库当年和第二年差异不显著,第三年分别达显著和极显著程度;反映种子发芽速度的平均发芽速度在第四年显著减慢;两个种子发芽综合性指标发芽指数和发芽值均为第二年显著降低,其中发芽值达极显著。本文还建立了室温干藏年份与各指标的回归方程。
In this paper, we studied the quality changes of Pinus tabulaeformis seeds extracted from a mechanical refrigerator at room temperature for six years. The results showed that the germination rate and germination potential, the main indexes reflecting seed germination ability, were not significantly different between the first year and the second year, and reached the significant and extremely significant levels in the third year respectively. The average germination rate, which reflected the germination speed of seeds, Year significantly slowed down; two seeds germination comprehensive index germination index and germination value were significantly reduced the second year, in which the germination value of extremely significant. The paper also established a regression equation of dry storage year and each index at room temperature.