Effects of Density on Seed Size and Biochemical Composition

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Abstract
Density effects altered both the number and kind of seeds produced by Chamaesyce hirta. Three different analyses of seed numbers each revealed a reduction in seed output with increased plant density. At low densities an individual produced larger numbers of heavier seeds, higher in calories with relatively more carbohydrate and less lipid, protein and ash. At higher densities C. hirta produced fewer, lighter seeds, lower in calories with relatively less carbohydrate and more lipid, protein and ash. The investment per progeny in terms of calories diminished with increased plant density.

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