Comparison of nitrogen assimilation components among <i>Agrostis</i> species and cultivars
نویسندگان
چکیده
Enhanced nitrogen use efficiency (NUE) in turfgrass systems comprises several factors, including more efficient uptake and assimilation of applied (N), as well reduced N losses to the environment. The objectives current research were evaluate inter- intraspecific variation parameters two Agrostis species, creeping bentgrass (Agrostis stolonifera L.) velvet canina L.), under field controlled environmental conditions. Measurements included leaf NUE (g dry matter mg–1 N), content (mg g–1 matter), root nitrate reductase activity (NRA)(μmol NO2– fresh weight h–1), rate (NUR). Velvet cultivars exhibited higher therefore lower than a nutrient solution. Differences NRA only observed species field, with bentgrass. grown solution 50% NUR bentgrass, increasing decreasing NO3– supply.
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متن کاملChanges in Yield and Yield Components of Four Cultivars of Barley Under Different Nitrogen Levels in Isfahan Region
: In order to study the effect of different nitrogen levels on yield components and seed yield of three barley cultivars, an experiment was conducted in 2011-2012 in a research farm of farming building of Islamic Azad University Khorasgan (Isfahan) Branch located in Khatunabad village (latitude 32o /40' N and Longitude 51o /48' E). A split plot layout within randomized com...
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ژورنال
عنوان ژورنال: International Turfgrass Society research journal
سال: 2022
ISSN: ['2573-1513', '1817-0641']
DOI: https://doi.org/10.1002/its2.96