The effect of Gpc-B1 in the high yielding background of
bread wheat DPW621-50 was studied in yield trials
conducted during 2013-14 and 2014-15 at Punjab
Agricultural University, Ludhiana by using a set of six gene
positive and six gene negative lines derived from the cross
DPW621-50//Glupro/3*PBW568/3/DPW621-50. The hard red
US spring wheat “Glupro†served as primary donor, which
was backcrossed twice to PBW568 to develop a large set of
locally adapted lines. A high grain protein derivative with
desirable agronomic features served as donor for the current
set of lines in the background of DPW621-50. Presence of
Gpc-B1 resulted in significant increase of grain protein
content with range of enhancement being 5.2 to 12.5%
during 2013-14 and 3.8 to 11.0% during 2014-15. The
enhancement in protein content did not show concomitant
increase for grain zinc and iron concentration. Comparison
of yield showed negative influence of Gpc-B1 gene as yield
was lowered to >25% in Gpc-B1 lines. The yield reduction
was primarily mediated through reduction in 1000-grain
weight in the Gpc-B1 positive lines.
Keywords: DPW621-50, protein content, grain zinc & iron concentration, grain yield, yield components
Year: 2018
Volume: 78
Issue: 2
Article DOI: 10.5958/0975-6906.2018.00027.5
Print ISSN: 0019-5200
Online ISSN: 0975-6906
Charan Singh info_circle
Puja Srivastava info_circle
Achla Sharma info_circle
Parveen Chhuneja info_circle
V. S. Sohu info_circle
N. S. Bains info_circle