
TY  - JOUR
A1  - Asher, CJ 
A1  - Ozanne, PG 
T1  - Individual Plant Variability in Susceptibility to Potassium Deficiency: Some Observations on Capeweed [<I>Arctotheca calendula</I> (L.) Levyns]
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1977
VL  - 4
IS  - 4
SP  - 499
EP  - 503
KW  - 
UR  - https://doi.org/10.1071/PP9770499 
N2  - Individual plants in an apparently uniform set of capeweed seedlings were found to differ markedly in susceptibility to potassium deficiency when grown in solution culture at a constant potassium concentration of 2.6 µM. Large differences were found in dry weight of tops (8-218 mg), tissue potassium concentration (0.3 - 4.8 %) and total potassium in the tops (23-10 500 µg potassium). Dry weight and percentage potassium were positively correlated  (r = 0.859, P<0.001) at 2.6 µM potassium but not at higher potassium concentrations. The nature and possible exploitation of such variability in cross-fertilized forage plants are briefly discussed. 
ER  -

