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Agricultural chemists from RUDN University have developed a new way to deal with cleavers, a weed that is the main enemy of winter wheat crops. They found a combination of herbicides that, as the experiments have shown, increases the yield of winter wheat by 46-60 percent. The results are published in Archives of Agronomy and Soil Science.
Cleavers (Galium aparine L.) is a weed plant that impedes the growth of winter wheat (Triticum aestivum L.) and significantly reduces the yield. The weed is one of the most widespread, infesting winter crops in Eurasia and North America. It adapts well to the environment, has high frost resistance and great genetic diversity. In addition, cleavers is resistant to many common herbicides, and those that are effective can damage cultivated crops and adversely affect the yield.
Meisam - Zargar - Associate - Professor - RUDN
Meisam Zargar, an associate professor at the RUDN University Agrobiotechnology Department and his colleagues from Russia and Iran, were able to develop a mixture of herbicides that effectively fights cleavers and increases wheat yield approximately by half.
To find the optimal combination of herbicides, the researchers decided to use post-emergence herbicides: substances that destroy weeds after the cultivated plant is at the tillering stage and has already grown several leaves. Typically, such agents are used selectively, because they may act differently on a plant depending the class of flowering plants the latter belongs to, i.e. monocotyledonous and dicotyledonous. For example, they may destroy all dicotyledonous plants in monocotyledonous crops, or vice versa.
Professor - Zargar - Experiments - Fields - Krasnodar
Professor Zargar conducted experiments in two fields sown with either Krasnodar 99 wheat or with Gerda wheat. Cleavers was the dominant weed meanwhile other species of weed were present in small amounts. The experimental fields were divided into plots, in each of which either one of the seven studied...
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