International Journal of Agronomy / 2011 / Article / Tab 7

Research Article

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

Table 7

Effect of glufosinate on soybean biomass, nodule biomass, nitrogenase activity, root respiration, and shoot nitrogen content, 12 d after application under greenhouse conditionsab.

Soybean type and glufosinate rate (g/ha)Dry biomass (mg/plant)Nitrogenase activity (μmol ethylene formed/plant/h)Root respiration
(μmol CO2/plant/h)
Shoot nitrogen (%)
NoduleShootRoot

Glufosinate-resistant soybean
0
450
1350
Glyphosate-resistant soybean
0
45
135
Conventional soybean
0
45
135

aAverage of two greenhouse experiments each with seven replications.
b Means within a column for each soybean type followed by the same letter are not statistically significant at the 5% level as determined by Fisher’s LSD test.

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