The mixtures were harvested two, three, or four times annually at two stubble heights, 4 and 10 cm, during 1969 and 1970. Alfalfa was eliminated by spraying with a selective herbicide during autumn of 1970. Grasses were then evaluated for stand persistence and dry matter yields during the ...
16) Herbicide consisting of 1,1′-dimethyl-4,4′-bipyridinium dichloride (CAS No. 1910-42-5) (Paraquat concentrate in liquid form) up to 45 percent concentration with application adjuvants (described in statistical reporting number 3808.93.1500) 17) Supported nickel-based catalysts, of a kind ...
[31] pro- vided a convenient protocol for Arabidopsis trans- formation by floral dipping. • Select primary transformants by FAST or antibi- otic/herbicide resistance. At least 30–40 primary transformants should be obtained. • Design PCR primers: Flanking the desired deletion, and at ...
Table 3 Degradation half-life (t½ (d) ± SE, assuming 1st order kinetics) and R2 linear regression statistic for degradation of atrazine and bromacil in four media under five different degradation regimes. Full size table Generally, the herbicide recovery from soil was less efficient than...
Our field study quantified the effects of four tillage practices in continuous corn (L.) and corn-soybean [(L.) Merr] rotations on herbicide and nitrate N losses in tile drainage water. Fertilizer and pesticide application methods were uniform for ridge, moldboard, chisel, and no-till systems...
Natural and synthetic podolactones with potential use as natural herbicide models [J]. J Agric Food Chem, 2000, 48(7): 3003-3007. doi: 10.1021/jf990321y [16] Xin M, Guo S, Zhang W, et al. Chemical constituents of supercritical extracts from Alpinia officinarum and the feeding ...
L. Multiple stress effects of Vision herbicide, pH, and food on zooplankton and larval amphibian species from forest wetlands. Environ. Toxicol. Chem. 23, 823–831 (2004). 45. Heugens, E. H. W. et al. Population growth of Daphnia magna under multiple stress conditions: joint effects of...
In their study, some herbicide treatments that provided only moderate levels of weed control and allowed substantial weed biomass production were not different in yield from treatments that provided excellent control and allowed little weed biomass production. They suggested that sweet potatoes are able ...
Seedlings of these four weeds were therefore grown under ambient and elevated UV-B radiation to compare the efficacy of paraquat, a commonly used contact herbicide. Irrespective of species sensitivity to radiation, the elevated UV-B radiation decreased the effectiveness of paraquat. Net photosynthesis ...
OBP-I18, on its high broad spectra of detection, thermal stability, sensitivity, resistance to organic solvents and pH variation. OBPs have been studied as biosensors (i) for environmental monitoring and detection of dangerous substances19; (ii) fabrication of cartridges for removing the herbicide ...