Allelopathic potential of bread wheat helps in suppressing the littleseed canarygrass (Phalaris minor Retz.) at its varying densities

作者：Kashif, Muhammad Saleem; Farooq, Muhammad^*; Cheema, Zahid Ata; Nawaz, Ahmad

来源：Archives for Agronomy and Soil Science, 2016, 62(4): 580-592.

DOI：10.1080/03650340.2015.1071482

• bread wheat
• weeds
• allelopathy
• phenolics
• breeding

In this 2-year field study, we investigated the allelopathic effects of three wheat cultivars (Shafaq-06, Faisalabad-08 and Sehar-06) against different density levels (0, 100, 200 and 300 plants m(-2)) of littleseed canarygrass (Phalaris minor Retz.). Crop was sown on 1 and 3 December during 2010-2011 and 2011-2012 cropping seasons, respectively. The results showed that wheat cultivar Shafaq-06 produced more phenolic compounds at all density levels of littleseed canarygrass during both years, which caused more inhibition of littleseed canarygrass growth. More suppressive advantage of cultivar Shafaq-06 against littleseed canarygrass was responsible for its better morphological and yield related traits, and grain yield than cultivars Faisalabad-08 and Sehar-06. Among the tested cultivars, cultivar Sehar-06 had minimum allelopathic potential in suppressing littleseed canarygrass. In crux, Shafaq-06 possesses allelopathic potential to suppress littleseed canarygrass and may be used for breeding future wheat cultivars with high allelopathic activity for better weed suppression.

• 出版日期2016-4-2