Full text of this article is only available in PDF format.

Matti Haapanen (email)

Effect of plot size and shape on the efficiency of progeny tests.

Haapanen M. (1992). Effect of plot size and shape on the efficiency of progeny tests. Silva Fennica vol. 26 no. 4 article id 5488. https://doi.org/10.14214/sf.a15649

Abstract

A simulation approach was applied to study the pattern of environmental variability and the relative statistical efficiency of 14 different plot types. The study material consisted of two nine-year-old field tests of Scots pine (Pinus sylvestris L.). The area of the test sites was 1.57 and 0.67 hectares. The efficiency was measured as the error variance attached to the estimate of family mean and the total size of a test needed to detect a given, least significant difference between two family means. The statistical efficiency tended to decline along with increasing plot size. The importance of plot shape was negligible compared to plot size. The highest efficiency was obtained with single-tree plots. Non-contiguous plots appeared to be considerably more efficient than block plots of equal size. The effects of intergenotypic competition on the choice of plot type are discussed.

The PDF includes an abstract in Finnish

Keywords
Pinus sylvestris; efficiency; progeny testing; plot size; statistical methods; experimental design

Published in 1992

Views 1493

Available at https://doi.org/10.14214/sf.a15649 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Haapanen M., (1995) Within-plot subsampling of trees for assessment .. Silva Fennica vol. 29 no. 1 article id 5543