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Agroforestry Systems

, Volume 35, Issue 1, pp 95–110 | Cite as

Assessment of hedgerow species for seed size, stand establishment and seedling height

  • D. A. Shannon
  • L. Isaac
  • F. E. Brockman
Article

Abstract

The relationships between seed size, emergence, stand establishment and seedling height were examined in a trial comparing tree and shrub species as hedgerows for alley cropping in four environments in Haiti. Logarithmic functions relating % emergence, % stand establishment and seedling height to seed weight were positive and significant. These relationships were stronger when species weighing > 10 g 100−1 seed were excluded from the analysis. Higher R2 values were obtained regressing % stand than regressing % emergence on seed weight. Although exceptions were noted, a majority of species having seed weights between 2.5 g and 10 g 100−1 had good stands. Establishment was poor or inconsistent for species with seed < 2.5 g 100−1. The effect of seed size on height was more important for seed weights < 5 or 8.8 g 100−1, depending upon the site, than for larger seed. Species with < 2.5 g 100−1 seed are unsuitable for direct seeding where the chance of drought is high.

Key words

agro-ecological zones alley cropping emergence Haiti trees 

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Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • D. A. Shannon
    • 1
  • L. Isaac
    • 2
  • F. E. Brockman
    • 2
  1. 1.Department of Agronomy and SoilsAuburn UniversityUSA
  2. 2.South-East Consortium for International Development/Auburn UniversityBerthé, PétionvilleHaiti

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