R
Ralph W. F. Hardy
Researcher at DuPont
Publications - 22
Citations - 4619
Ralph W. F. Hardy is an academic researcher from DuPont. The author has contributed to research in topics: Nitrogenase & Photorespiration. The author has an hindex of 15, co-authored 22 publications receiving 4445 citations.
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Journal ArticleDOI
Reproductive Growth and Dry Matter Production of Glycine max (L.) Merr. in Response to Oxygen Concentration.
TL;DR: It is concluded that an unknown reaction or process requiring at least atmospheric concentrations of O(2) but independent of CO(2), in contrast to photorespiration is necessary for optimization of all phases of reproductive growth and the effect is reversible for exposures of up to 3 days but not for Exposure of 10 days or more.
Journal ArticleDOI
Adaptation of Nitrogen Fixation by Intact Soybean Nodules to Altered Rhizosphere pO2
TL;DR: It is concluded that the N(2)[C(2]H(2)]-fixing system of intact soybean plants is able to adapt to a wide range of external pO(2)s as probably occur in soil.
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Effect of Altered pO2 in the Aerial Part of Soybean on Symbiotic N2 Fixation
TL;DR: Results are consistent with the hypothesis that the amount of photosynthate available to the nodule may be the most significant primary factor limiting N(2) fixation while sink activity of the reproductive structures may be a secondary factor.
Journal ArticleDOI
Experimental determination of the respiration associated with soybean/rhizobium nitrogenase function, nodule maintenance, and total nodule nitrogen fixation.
TL;DR: In this symbiosis, nodule maintenance consumed 22% of total respiratory energy while the functioning of nitrogenase consumed a further 52%.
Journal ArticleDOI
Oxygen as a New Factor controlling Reproductive Growth
B. Quebedeaux,Ralph W. F. Hardy +1 more
TL;DR: It is well recognized from short term experiments that the photosynthetic and vegetative growth rates of plants with high rates of photorespiration are elevated 50 to 100% by sub-atmospheric concentrations of O2, but the long term effect on vegetative and reproductive growth of either C3 or C4 plants has not been reported.