Premium
The Breeding Behavior of Yield and Related Variables in Alfalfa I. Replicated Clonal Plants 1
Author(s) -
Frakes R. V.,
Davis R. L.,
Patterson F. L.
Publication year - 1961
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1961.0011183x000100030014x
Subject(s) - library science , citation , crop , biology , computer science , agronomy
BROAD sense heritability estimates of characters in forage crops provide information relative to the magnitude of the genetic variance available to the plant breeder for selection in cross-pollinated plants. By definition, broad sense heritability is a ratio of the total genetic variance to the observed phenotypic variance. This ratio may be altered by previous selection of the plant material, by stage of regrowth, by seasonal effects, and by the particular management imposed on the plant population. Burton and DeVane~ presented formulas for the computation of broad sense heritability estimates from replicated clonal material in tall rescue. This same method was used by Kneebone ~ and Keller and Likens~ in sand bluestem and hops, respectively. Results obtained from a study designed to examine the effects of regrowth period, fall treatment, and seasonal effects on broad sense heritability estimates of yield and related variables in alfalfa are reported in this paper.