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The Effect Of Phosphorus And Nitrogen Addition
On Red Maple (Acer rubrum) Seed Production
Laurel Brigham
University Of California, San Diego, CA
 Singularly male or female trees, or
trees with both male and female
branches
 Can change on a yearly basis and
with altered nutrients
 Tested whether nutrient addition
increased seed production
 This may occur as a result of
increasing the female proportions
of a given tree or causing male
trees to become female
 A. rubrum seeds were collected from
spring litter, but a significant treatment
effect was not detected
 Need to improve the seed collection
design to reduce potential predation by
small mammals C N P NP
Treatment
RedMapleSeedCount
0.00.40.81.2

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The effect of P and N addition on red maple seed production.

  • 1. The Effect Of Phosphorus And Nitrogen Addition On Red Maple (Acer rubrum) Seed Production Laurel Brigham University Of California, San Diego, CA  Singularly male or female trees, or trees with both male and female branches  Can change on a yearly basis and with altered nutrients  Tested whether nutrient addition increased seed production  This may occur as a result of increasing the female proportions of a given tree or causing male trees to become female  A. rubrum seeds were collected from spring litter, but a significant treatment effect was not detected  Need to improve the seed collection design to reduce potential predation by small mammals C N P NP Treatment RedMapleSeedCount 0.00.40.81.2