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1957 growing season acre Afton Location Analysis of variance APPENDIX Table atmometers AuSable burned plots burning index Date of sowing drought EARLY SURVIVAL effect full light Gennination germinated seedlings germination and survival H.L. Aft horizon HQQHH inches jack pine seedlings June Lake Afton lings m.mH maximum temperatures meeas ments mil-acre plots mil-acre quadrats mortality NH Q northern Michigan number of seedlings nutrient outwash plain percentage pine seeds PINUS BANKSIANA prescribed burns prescribed fire Q QH Q QN Q.Q QH QH QH Q QH Q.Q QH QH QH Q.Q QN Q QN QH QN QN QQ QQ QQQH rainfall root samples sand scarified plots seed trees seedbed seedlings surviving seeds germinate shade levels significant site treatments slash burning soil horizon soil moisture soil profiles sowing date sums of squares survival data Tempil pellets Total sums treatment unshaded winter kill