TY - JOUR
T1 - Grain phosphorus and phytate contents of wheat genotypes released during last 6 decades and categorization of selected genotypes for phosphorus use efficiency
AU - Bilal, Hafiz Muhammad
AU - Aziz, Tariq
AU - Maqsood, Muhammad Aamer
AU - Farooq, Muhammad
N1 - Funding Information:
The authors highly acknowledge the financial help from Higher Education Commission and University of Agriculture, Faisalabad for the experiments. Thanks also due to the Director, Wheat Research Institute, Ayub Agriculture Research Institute, Faisalabad for provision of the seeds.
Publisher Copyright:
© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2019/5/12
Y1 - 2019/5/12
N2 - Grain phosphorus (P) and phytate contents are important for early growth and quality of wheat, respectively. We studied seed P and phytate contents of 57 wheat genotypes released during last 6 decades. The grain total P and phytate P concentrations ranged from 2.0 to 8.9 mg g −1 and 1.6 to 4.7 mg g −1 , respectively. Grain P was higher in genotypes released in current or last decade than pre-green revolution period and it correlated well with grain phytate contents. Indicating that breeders worked only for increased grain P and did not consider the phytate contents. Twenty-five genotypes were selected based on differences in grain P and phytate contents to observe the P use efficiency under field conditions. Genotypes differed significantly for grain P and yield at both 0 and 60 kg ha −1 P levels. In conclusion, phytate fraction in grains of recent wheat genotypes was more as compared to old genotypes and genotype Inqlab-91 and Chakwal-86 had maximum grain total P. Moreover, number of productive tillers, spikelet per spike, grain weight, harvest index and grain P concentration and uptake were found responsible for P tolerance under P deficiency.
AB - Grain phosphorus (P) and phytate contents are important for early growth and quality of wheat, respectively. We studied seed P and phytate contents of 57 wheat genotypes released during last 6 decades. The grain total P and phytate P concentrations ranged from 2.0 to 8.9 mg g −1 and 1.6 to 4.7 mg g −1 , respectively. Grain P was higher in genotypes released in current or last decade than pre-green revolution period and it correlated well with grain phytate contents. Indicating that breeders worked only for increased grain P and did not consider the phytate contents. Twenty-five genotypes were selected based on differences in grain P and phytate contents to observe the P use efficiency under field conditions. Genotypes differed significantly for grain P and yield at both 0 and 60 kg ha −1 P levels. In conclusion, phytate fraction in grains of recent wheat genotypes was more as compared to old genotypes and genotype Inqlab-91 and Chakwal-86 had maximum grain total P. Moreover, number of productive tillers, spikelet per spike, grain weight, harvest index and grain P concentration and uptake were found responsible for P tolerance under P deficiency.
KW - breeding scheme
KW - correlation
KW - genetic pool
KW - genotype
KW - green revolution
KW - Phytate
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U2 - 10.1080/03650340.2018.1521957
DO - 10.1080/03650340.2018.1521957
M3 - Article
AN - SCOPUS:85053878304
SN - 0365-0340
VL - 65
SP - 727
EP - 740
JO - Archives of Agronomy and Soil Science
JF - Archives of Agronomy and Soil Science
IS - 6
ER -