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Sun Y, Yan X, Zhang S, Wang N. GRAIN YIELD AND ASSOCIATED PHOTOSYNTHESIS CHARACTERISTICS DURING DRYLAND WINTER WHEAT CULTIVAR REPLACEMENT SINCE 1940 ON THE LOESS PLATEAU AS AFFECTED BY SEEDING RATE. Emir J Food Agric [Internet]. 2017 Jan. 2 [cited 2025 Sep. 22];29(1):51-8. Available from: https://www.ejfa.me/index.php/journal/article/view/486