INHERITANCE OF QUALITY AS RELATED TO AGRONOMIC CHARACTERS IN ADVANCED LINES OF A SPRING WHEAT CROSS

Autor:	F. Gfeller, A. G. O. Whiteside
Rok vydání:	1961
Předmět:	education.field_of_study Population Inheritance (genetic algorithm) food and beverages Plant Science Horticulture Biology Stem rust biology.organism_classification Rust Poor quality Quality (physics) Agronomy education Agronomy and Crop Science
Zdroj:	Canadian Journal of Plant Science. 41:607-614
ISSN:	1918-1833 0008-4220
DOI:	10.4141/cjps61-089
Popis:	The expansion, sedimentation and mixograph flour quality tests were used to evaluate the bread-making properties in F8 and F9 spring wheat lines, derived from a cross between the poor quality hybrid R.L.2265.46 (a McMurachy × Exchange selection) and the variety Redman. The results from these quality tests were considered in relation to head type and stem rust resistance to race 15B-4 (Can.) which is controlled by gene Sr6 present in the numbered parent.In general, the lines with compact spike and stem rust resistance showed inferior quality when compared with those having fusiform heads and with those which were susceptible to rust. It was observed that none of the lines of one population had good quality whereas in the second population, where the R.L. 2265-46 parent was shown to be heterozygous for both head type and rust resistance, 2.0 per cent of the population was promising in quality, rust resistance and yield. The Sr6 gene was found to be loosely linked with the gene for compact spike. The mean yields of lines having compact spikes were significantly lower than those with fusiform spikes.
Databáze:	OpenAIRE
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