Variability in Letoria and Fulwin Oats¹

Population Variability in Small Grains1

“…Moreover, although the resulting heterogeneity may be unnoticeable in its home area, gene-environment interactions may result in the expression of a great deal of variation outside its area of adaptation. Wallace et al (31) studied variability in 'Letoria' and 'Fulwin' oats and made 15 crosses between different pairs of parent plants selected from the 2 varieties. They found that variation among Letoria parents was not significant for any of the 6 characters, but among Fulwin parents was statistically significant in 5 of the 6 characters.…”

Genetic Analysis of Varietal Differentiation in Cereals

“…Recently, Wallace et al (1955) found in Fulwin oats a wide range of variability in several agronomic characters. They thought that the occurrence of off-type plants in polyploid plants following chromosomal aberrations may be the cause.…”

Heritable variation of quantitative characters among and within seed sources of maize inbred lines

“…Gotoh (1955aGotoh ( ) 1955%, 1956Gotoh ( , 1957 Garber and Quisenberry (1927) there is more natural crossing and., thus, more intravarietal variability In A. byzantina varieties than in A. sativa varieties. Wallace _et al, (1955) also sur r ested that the variation in their study may have been due to nonhomo logous chromosome crossovers such as those found by Zuskins (1946) and Morey (19^9). Cofffflan, Parker, and Quisenberry (1925) reported that the Burt oat variety, derived from Avena byzantina, was extremely variable in plant and seed characters, '"he variety Kherson, A. satlva.…”