Differences in Weed Suppression between Two Modern and Two Old Wheat Cultivars at Different Sowing Densities

نویسندگان

چکیده

Crop losses to weeds can be exacerbated in modern agricultural systems because crop cultivars have high population yields but low individual competitiveness. High density cropping offer the possibility of effectively suppressing by increasing initial size-asymmetric advantage crops over weeds. We tested this hypothesis an outdoor mesocosm experiment with two old (Cultivar Heshangtou (HST) and Jinbaoyin (JBY)) (Xihan2 (XH2) Xihan3 (XH3)) spring wheat (Triticum aestivum L.), grown a uniform pattern at four sowing densities under weed pressure. Two annuals (Brassica napus Linum usitatissimum) were used as model sown same all treatments. Weed growth decreased yield increased for cultivars, although levelled off highest densities. The suppressed better than new density, reflecting decline competitiveness cultivars. At however, XH3 well supporting that traits promote suppression are different vs. density. Increasing effective way suppress many systems, there is great potential developing genotypes do produce much currently available.

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ژورنال

عنوان ژورنال: Agronomy

سال: 2021

ISSN: ['2156-3276', '0065-4663']

DOI: https://doi.org/10.3390/agronomy11020253