Premium
Grain Phytic Acid and Protein are Highly Correlated in Winter Wheat
Author(s) -
Raboy Victor,
Noaman Maher M.,
Taylor G. Allan,
Pickett Suewiya G.
Publication year - 1991
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/cropsci1991.0011183x003100030017x
Subject(s) - phytic acid , biology , wheat grain , food science , agronomy , phytase , zoology , biochemistry , enzyme
Phytic acid ( myo ‐inositol hexakisphosphate), the major storage form of P in seeds, is believed to have a negative impact on nutritional quality. Since breeding for low phytic acid has been proposed for several cereals and legumes, it is important to predict the effects of selection against phytic acid on other major grain components. Experiments were conducted to determine the quantitative relationship between grain phytic acid P, total P, and protein in two winter wheat ( Triticum aestivum L.) populations, each consisting of F 6 progeny of a double cross. Substantial variation in phytic acid P was observed, with the range in values equal to 30 and 48% of the respective population mean. Observed variation in phytic acid P was highly and positively correlated with variation in grain total P ( r 0.93 and 0.96 in Populations 1 and 2, respectively), and with variation in grain protein ( r = 0.65 and 0.87, respectively). The dose correlation of phytic acid P with both total P and protein indicates that selection against grain phytic acid would lead to undesirable reductions in both grain total P and protein.