International Journal of Agronomy / 2011 / Article / Tab 3

Research Article

Glufosinate Effects on Nitrogen Nutrition, Growth, Yield, and Seed Composition in Glufosinate-Resistant and Glufosinate-Sensitive Soybean

Table 3

Glufosinate effect on shoot, root, and nodule biomass, nitrogenase activity, and root respiration in glyphosate-resistant soybean under field conditions in 2009 and 2010.

YearSampling timeGlufosinate
rate (g/ha)
Dry biomass (mg/plant)Nitrogenase activity (μmol ethylene formed/plant/h)Root respiration (μmol CO2/plant/h)
NoduleShootRoot

20093 DAT03014723812.1626.8
454613553582.9828.8
P0.220.240.310.630.39
12 DAT06635757485.4053.0
455038416614.0046.7
P0.150.410.230.050.16

20103 DAT05220603033.6638.3
453413662712.1026.3
P0.0080.010.260.0040.01
12 DAT073388552019.30156.6
4561257039320.80146.5
P0.080.020.0050.680.36

Abbreviations: DAT: days after early postemergence application.

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