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Genetics and Agronomic Significance of Spike color in ‘Fairway’ Crested Wheatgrass, Agropyron cristatum (L.) Gaertn. 1
Author(s) -
Knowles R. P.,
Fedak George
Publication year - 1966
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/cropsci1966.0011183x000600050015x
Subject(s) - agropyron cristatum , biology , poaceae , botany , gray (unit) , medicine , radiology
Test crosses in ‘Fairway’ crested wheatgrass (2n = 14) indicated spike color to be controlled by a single gene Yy, with gray spikes being yy and green‐spiked plants YY or Yy. Phenotypic frequencies were 72% bright green, 8% gray, and 20% intermediate gray‐green. Intermediate gray‐green plants were usually heterozygous, but occasionally homozygous YY. No yield differences could be detected between green and gray‐spiked forms, but the gray form was slightly lower in fibre content.