Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Campbell, Richard J."'
Autor:
Campbell, Richard J.
Several experiments were conducted to determine: the influence of canopy position, girdling, and defoliation on nectar production; whether instantaneous light measurements yield reliable estimates of cumulative seasonal light levels within the canopy
Externí odkaz:
http://hdl.handle.net/10919/39857
http://scholar.lib.vt.edu/theses/available/etd-10142005-103049/
http://scholar.lib.vt.edu/theses/available/etd-10142005-103049/
Autor:
Campbell, Richard J.
Two experiments were conducted with field- and container-grown 'Delicious' apple trees to evaluate the effect of nitrogen fertilization on the physiology of apple leaves subjected to European red mite feeding, and the subsequent recovery of leaf func
Externí odkaz:
http://hdl.handle.net/10919/42042
http://scholar.lib.vt.edu/theses/available/etd-04122010-083649/
http://scholar.lib.vt.edu/theses/available/etd-04122010-083649/
Autor:
Sessa, Valerie I.1, Campbell, Richard J.2
Publikováno v:
Selection at the Top. 1/1/1997, p77-89. 13p.
Autor:
Sessa, Valerie I.1, Campbell, Richard J.2
Publikováno v:
Selection at the Top. 1/1/1997, p63-75. 13p.
Autor:
Sessa, Valerie I.1, Campbell, Richard J.2
Publikováno v:
Selection at the Top. 1/1/1997, p43-62. 20p.
Autor:
Sessa, Valerie I.1, Campbell, Richard J.2
Publikováno v:
Selection at the Top. 1/1/1997, p27-41. 15p.
Autor:
Sessa, Valerie I.1, Campbell, Richard J.2
Publikováno v:
Selection at the Top. 1/1/1997, p19-26. 8p.
Autor:
Sessa, Valerie I.1, Campbell, Richard J.2
Publikováno v:
Selection at the Top. 1/1/1997, p13-18. 6p.
Autor:
Sessa, Valerie I.1, Campbell, Richard J.2
Publikováno v:
Selection at the Top. 1/1/1997, p5-12. 8p.