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Total seed protein variability in a sample of 163 entries of year-bean (Phaseolus polyanthus), including wild, feral and cultivated forms of the whole range of distribution in Latin America was studied using 1-dimensional SDS/PAGE and 2-dimensional IEF-SDS/PAGE. Ten different patterns were observ...


Schmit, VéroniqueDebouck, Daniel G.[Observations on the origin of Phaseolus polyanthus Greenman]Observations on the origin of Phaseolus polyanthus Greenman

Several species of double-stranded RNA (dsRNA) were found to occur in the cassava clone Secundina, which was thought to be virus- free. A large dsRNA molecule (6.6 x 106 Mr = relative molecular mass)(L-dsRNA) was shown to be graft, but not mechanically transmitted and occurred primarily in a nucl...


Gabriel, C.J.WALSH, R.Nolt, Barry L.[Evidence for a latent viruslike agent in cassava]Evidence for a latent viruslike agent in cassava

A geographic frequency distribution of seed protein patterns of 306 individuals belonging to Phaseolus polyanthus is presented. Plant material covered the range of distribution of P. polyanthus from Veracruz, Mexico to Cajamarca, Peru. (CIAT)


Debouck, Daniel G.Schmit, VéroniqueLibreros, DimaryRamírez, Hernando[Biochemical evidence for a fifth cultigen within the genus Phaseolus]Biochemical evidence for a fifth cultigen within the genus Phaseolus

In 1986, 5 commercial bean sites near Holyoke (Colorado, USA) were treated with 4 sprays of cupric hydroxide every 7 to 10 days beginning at least 2 wk. before flowering to (1) sample for the presence of Cu resistance in naturally-occurring epiphytic populations of Pseudomonas syringae pv. syring...


Garrett, K.A.Schwartz, Howard F.[Research on pseudomonas bacterial epiphytes in Colorado]Research on pseudomonas bacterial epiphytes in Colorado

Investigations during 1984 and 1985 demonstrated that Pseudomonas syringae pv. phaseolicola (Psp) and Pseudomonas syringae pv. syringae (Pss) occur as epiphytes on dry beans in Colorado. Populations of syringae-type pseudomonads (STPs) were detected on volunteer bean plants throughout northeaster...


Legard, D.E.Schwartz, Howard F.[Sources and management of Pseudomonas syringae pv. phaseolicola and Pseudomonas syringae pv. syringae Epiphytes on dry beans in Colorado]Sources and management of Pseudomonas syringae pv. phaseolicola and Pseudomonas syringae pv. syringae Epiphytes on dry beans in Colorado
Ummenhofer, Caroline C.Xu, HongTwine, Tracy EGirvetz, Evan H.McCarthy, Heather RChhetri, NetraNicholas, Kimberly A.[How climate change affects extremes in maize and wheat yield in two cropping regions]How climate change affects extremes in maize and wheat yield in two cropping regions

In summer 2007, the Asian parasitoid Binodoxys communis (Hymenoptera: Braconidae) was released in North America for control of the exotic soybean aphid, Aphis glycines (Hemiptera: Aphididae). Despite its comparatively narrow host range, releases of B. communis may still constitute a risk to nativ...


Wyckhuys, Kris A.G.Koch, RLKula, RRHeimpel, George E.[Potential exposure of a classical biological control agent of the soybean aphid, Aphis glycines, on non-target aphids in North America]Potential exposure of a classical biological control agent of the soybean aphid, Aphis glycines, on non-target aphids in North America

While symbiotic nitrogen (N2) fixation by G. max and P. vulgaris reduces their need for combined N, N2 fixation under field conditions is rarely maximized. This paper reviews constraints to N2 fixation in these species, then examines the genetic variability recorded for traits affecting N2 fixati...


Graham, Peter H.Temple, Steven R.[Selection for improved nitrogen fixation in Glycine max (L.) Merr. and Phaseolus vulgaris L.]Selection for improved nitrogen fixation in Glycine max (L.) Merr. and Phaseolus vulgaris L.

Results are given from a Phaseolus germplasm field study carried out in Southern Nuevo Leon, Mexico: 143 samples of 8 different species. The presence of each one of the species in this part of the country is discussed. (CIAT)


Rodríguez C, M.Rodríguez T, S.Aguilar S., M.Debouck, Daniel G.[Phaseolus germplasm collection in Mexico]Phaseolus germplasm collection in Mexico

This paper reviews the treatment of intellectual property rights in the North American Free Trade Agreement and considers the welfare-theoretic bases for innovation transfer between member and nonmember states. Specifically, we consider the effects of new technology development from within the un...


Holloway, G.J.[Reworking the NAFTA: Departures from traditional frameworks]Reworking the NAFTA: Departures from traditional frameworks

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