ISSN:
1871-4528
Schlagwort(e):
Solanum tuberosum L.
;
dry matter partition
;
nitrogen content
;
DW/Nratio
;
nitrate
;
ammonium
;
glutamic acid
;
in vitro nitrogen source
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
Notizen:
Summary Different nitrogen sources (NO3 −, NH4 +, glutamic acid and their combinations) influenced the growth and morphogenic responses (node number, shoot length, and stem, leaf and root dry weight) of three micropropagated potato cultivars (Spunta, Kennebec, Huinkul). Addition of reduced nitrogen (NH4 + or glutamic acid) in a nitrate medium increased shoot length and leaf number. The large increase in growth in plants fed with NO3 −, NH4 + could be explained by higher organic nitrogen content and enhanced dry matter partition to the shoot. This suggests that reduced nitrogen source is required, at least as a supplement to NO3 −, to enhance N assimilation and growth.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02358717
Permalink
