Stratification of shortleaf pine seeds

  • Authors: Barnett, J. P.; McGilvray, J. M.
  • Publication Year: 1971
  • Publication Series: Miscellaneous Publication
  • Source: Tree Planters' Notes Vol. 22 No. 3

Abstract

Tests with 16 separa te lo 1s of shorr leaf pine (Pinus echinata Mill.) seeds, represen ting various sources and years of coll ection, indicate th a t the greatest increase in speed of germ ina ti on occurred a ft er stra tifica tion for 56 to 70 days. Stratification increased total germinat ion over th at of the contro l, but th ere were no d ifferences between treatments tor periods of from 14 to 84 days. Since sho rtleaf pine (Pinus echinata Mi ll. ) seeds are usua lly dormant, cold stra tifica tion for 30 to 60 days has heen recommended for prompt, complete germination (2, 7, 8). T hese recommenda tions were based on completeness rather than speed o f ge1mina tion . Seidel (6), on the other hand, working with a single seed lo t, found that germina tion speed increased progres, ively with lengths of s tra tifica tion up to 60 days. This paper reports speed and completeness of germination af1 er stratifying seeds of vary ing ages for periods from I 4 to 84 clays.

  • Citation: Barnett, J. P.; McGilvray, J. M. 1971. Stratification of shortleaf pine seeds. Tree Planters' Notes Vol. 22 No. 3
  • Posted Date: March 15, 2022
  • Modified Date: March 15, 2022
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