Torrey j g (66 resultados)

Condición: New. Villa, Hernando G (ilustrador).

Condición: New. Villa, Hernando G (ilustrador).

Condición: As New. Unread book in perfect condition. Villa, Hernando G (ilustrador).

Condición: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pencil markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,400grams, ISBN.…

Condición: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. Book contains pencil markings. In fair condition, suitable as a study copy. No dust jacket. Re-bound by library. Originally softback. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,650grams, ISBN.…

Condición: As New. Unread book in perfect condition. Villa, Hernando G (ilustrador).

Condición: Good. Envoi rapide livre en bon état de conservation intérieur propre bords jaquette abîmés (frottement petites déchirures). in8. 1975. Cartonné jaquette. 628 pages. illustrations en noir et blanc. Good.

4877.TORREY J. G. 1970 DEVELOPMENT IN FLOWERING PLANTS. 184PP. ILLUSTRATED. SOFT COVER VERY GOOD CONDITION. (GNH-BASE-291).

Condición: New. Villa, Hernando G (ilustrador).

Condición: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In fair condition, suitable as a study copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,400grams, ISBN.

Condición: New. KlappentextrnrnThis scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have. Villa, Hernando G (ilustrador).

Condición: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In poor condition, suitable as a reading copy. No dust jacket. Re-bound by library. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,450grams, ISBN.…

root nodules (S. A. Canad. J. of Bot. Vol. 54, Nr. 18) 1976. S. 2155 - 2162. m. zahlr. Abb. geklammert -2) -Sonderabdruck-.

in cultured pea root cortical explants (S. A. Development. Biolog. Vol. 31, No. 2) 1973. S. 336 - 347. m. zahlr. Abb. geklammert -2) -Sonderabdruck-.

olive (Elaeagnus umbellata) (S. A. Can. J. Bot. Vol. 65) 1987. S. 80 - 94. gr8. m. zahlr. Abb. Kopie. geklammert -3) -Sonderabdruck-.

nodules of Comptonia peregrina (S. A. Canad. J. of Bot. Vol. 56, No. 5) 1978. S. 502 - 531. m. zahlr. Abb. geklammert -2) -Sonderabdruck-.

morphogenesis, fine structure, and cytokinin biosynthesis (S. A. Canad. J. of Bot. Vol. 55, Nr. 14) 1977. S. 1891 - 1907. m. zahlr. Abb. geklammert -2) -Sonderabdruck-.

Condición: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Condición: Brand New. New. US edition. Expediting shipping for all USA and Europe orders excluding PO Box. Excellent Customer Service.

Hardcover. Condición: Gut. Ehem. Bibliotheksexemplar mit Signatur und Stempel. GUTER Zustand, ein paar Gebrauchsspuren. Ex-library with stamp and library-signature. GOOD condition, some traces of use. AB-8114 Sprache: Deutsch Gewicht in Gramm: 1550.

Paper covers. Condición: V.g. No Jacket. 5th printing of 1967 edition. Little used. Weight: 1 Language: English.

Condición: New.

Gebunden. Condición: New.

Condición: New. In English.

Condición: New. In English.

Condición: New. In English.

Condición: New. In English.

Condición: Used. pp. 332.

Hardcover. Condición: Good. Good. Dust Jacket NOT present. CD WILL BE MISSING. . SHIPS FROM MULTIPLE LOCATIONS. book.

Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book provides an excellent illustration of the interrelationship between progress in scientific methodology and conceptual advances, and its publica tion should contribute to further advances. It is well known that major advances in understanding often follow the development of new methods. The development of the acetylene reduction assay for nitrogenase activity provides a good example of this interrelationship between theory and methods. Theoretical knowledge led to a search for substrates for nitro genase that could be assayed for more easily than ammonium, the normal product of the enzyme. The discovery of the reduction of acetylene to ethylene by nitrogenase provided the ideal answer to the problem by provid ing a rapid, specific, nondestructive, and inexpensive assay for nitrogenase activity. This assay is now used by almost every laboratory doing research on nitrogen fixation. However, further use and development of the acetylene reduction assay has shown that it can underestimate nitrogenase activity and can even give incorrect relative values under some circumstances. The major problem is that exposure of legume nodules to acetylene can cause a large increase in the resistance to oxygen diffusion into the nodule. This reduced supply of oxygen decreases the rate of nitrogenase activity within a few minutes.…