| sources of nitrate yields in the mississippi river basin. | riverine nitrate n in the mississippi river leads to hypoxia in the gulf of mexico. several recent modeling studies estimated major n inputs and suggested source areas that could be targeted for conservation programs. we conducted a similar analysis with more recent and extensive data that demonstrates the importance of hydrology in controlling the percentage of net n inputs (nni) exported by rivers. the average fraction of annual riverine nitrate n export/nni ranged from 0.05 for the lower miss ... | 2010 | 21043271 |
| genetic basis of soybean adaptation to north american vs. asian mega-environments in two independent populations from canadian × chinese crosses. | one of the goals of plant breeding is to increase yield with improved quality characters. plant introductions (pi) are a rich source of favorable alleles that could improve different characters in modern soybean [glycine max (l.) merril] including yield. the objectives of this study were to identify yield qtl underlying the genetic basis for differential adaptation of soybeans to the canadian, united states or chinese mega-environments (me) and to evaluate the relationship and colocalization bet ... | 2013 | 23595202 |
| stink bug (hemiptera: heteroptera: pentatomidae) feeding and phenology on early-maturing soybean in minnesota. | the invasion by halyomorpha halys (stål) and an increasing abundance of native pentatomidae pose a threat to soybean, glycine max (l.) merrill, production in northern states. a risk assessment framework was used to provide an initial assessment of the risk of pentatomidae affecting soybean production in northern states. a caged field study was performed over two years to assess the response of soybean to h. halys feeding. cages placed over r4 soybean were infested with 0, 1, 2, 4, or 8 fourth-in ... | 2015 | 26453722 |