PJB-2022-1532
Arabinoxylans of hard wheat cultivars in relation to crop year and environmental conditions
Salman Khurshid, Saqib Arif, Qurrat-Ul-Ain Akbar, Shahid Yousaf, Hafiza Mehwish Iqbal, Saba Iqbal and Abid Hasnain
Abstract
Eight hard wheat varieties grown at different locations over three cropping years were studied for arabinoxylan (AX) contents, in terms of total arabinoxylans (TAX), water extractable arabinoxylans (EAX) and water unextractable arabinoxylans (UAX). The levels of TAX, EAX and UAX were found to range between 46.3 to 77.8; 8.8 to 9.0; and 39.9 to 67.7 mg/g, respectively. The percent EAX in TAX and EAX/UAX ratios were found to be independent of the amount of AX. The EAX levels showed a similar pattern to TAX in all varieties. The influence of variety, location, and crop year on the AX contents was also studied. Variety was the main source of variation that influenced the AX content and percent EAX in TAX and EAX/UAX ratio. Location and Variety × Location interactions, were both found to significantly (p<0.001) influence the AX content. Variety × crop year interaction also showed a significant (p<0.001) impact on the percent EAX in TAX and EAX/UAX ratio. The impact of weather conditions on AX levels across the crop year and near the harvest period also showed significant relationships. The AX content across crop year was significantly and positively correlated with average minimum temperature (r=0.68-0.72) and average relative humidity (r=0.64-0.68). Compared to this, the AX level showed a significant negative relationship with maximum temperature (r=0.67) during the period approaching harvest
To Cite this article:
Khurshid, S., S. Arif, Q.A. Akbar, S. Yousaf, H.M. Iqbal, S. Iqbal and A. Hasnain. 2022. Arabinoxylans of hard wheat cultivars in relation to crop year and environmental conditions. Pak. J. Bot., 54(5): DOI: http://dx.doi.org/10.30848/PJB2022-5(7)
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