Wpływ wielkości próby na dokładność oceny wartości hodowlanej rodów z wolnego zapylenia w doświadczeniach testujących
The influence of subsampling on estimation accuracy of half sib families breeding value in progeny tests
Autorzy
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Jan Kowalczyk
Instytut Badawczy Leśnictwa, Zakład Hodowli Lasu i Genetyki Drzew Leśnych
ul. Braci Leśnej 3, Sękocin Stary, 05-090 Raszyn - Roman Gout Ukraiński Państwowy Uniwersytet Leśno-Techniczny, Wydział Leśny, Lwów, Ukraina
Abstrakt
The aim of the study was to examine how many trees per progeny have to be measured in order to assure enough precision of testing in particular environmental conditions where the experiments were located. The measurements and observations were made in two experimental plots with 10 years old half sib of Scots pine progeny. DBH was measured and stem straightness, branch diameter and branch angle were accessed for all trees. The results indicated that the measuring 35 trees per progeny for trials established in single tree plot design, gives nearly the same precision as measurements of all the plots.
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