FURTHER EVIDENCE CONCERNING THE TOXIC ACTION OF ALUMINUM IN CONNECTION WITH PLANT GROWTH

Soil Science ◽  
1931 ◽  
Vol 31 (4) ◽  
pp. 267-274 ◽  
Author(s):  
BASIL E. GILBERT ◽  
FREDERICK R. PEMBER
Keyword(s):  
1932 ◽  
Vol 22 (4) ◽  
pp. 704-735 ◽  
Author(s):  
Winifred E. Brenchley

1. No beneficial effect on the growth of barley or mustard on two types of soil was obtained by the addition of quantities of copper sulphate ranging up to 4 per cent. of the total artificial fertilisers applied. Experiments on English acid and alkaline peats with barley, rye and turnips failed to show the striking results obtained by American workers on saw-grass peat in the Everglades of Florida.2. Increased fineness of grinding of basic slag in some cases brings about a certain reduction of crop. This may be due to the presence of vanadium in such slags, as experiments show that this element is definitely toxic to plant growth.3. Lithium compounds are much less toxic than copper to the growth of barley. In some water culture experiments a suggestion of stimulation was obtained with very dilute concentrations of lithium chloride in the presence of nutrient salts, paralleling Voelcker's results with other lithium compounds in soil. Buckwheat is much more sensitive to the toxic action of lithium, and also shows no stimulation with any concentration.


2015 ◽  
Vol 58 ◽  
pp. 61-70 ◽  
Author(s):  
Paul B. Larsen

Ethylene is the simplest unsaturated hydrocarbon, yet it has profound effects on plant growth and development, including many agriculturally important phenomena. Analysis of the mechanisms underlying ethylene biosynthesis and signalling have resulted in the elucidation of multistep mechanisms which at first glance appear simple, but in fact represent several levels of control to tightly regulate the level of production and response. Ethylene biosynthesis represents a two-step process that is regulated at both the transcriptional and post-translational levels, thus enabling plants to control the amount of ethylene produced with regard to promotion of responses such as climacteric flower senescence and fruit ripening. Ethylene production subsequently results in activation of the ethylene response, as ethylene accumulation will trigger the ethylene signalling pathway to activate ethylene-dependent transcription for promotion of the response and for resetting the pathway. A more detailed knowledge of the mechanisms underlying biosynthesis and the ethylene response will ultimately enable new approaches to be developed for control of the initiation and progression of ethylene-dependent developmental processes, many of which are of horticultural significance.


2000 ◽  
Vol 75 (1) ◽  
pp. 95-127 ◽  
Author(s):  
D. E. HATHWAY
Keyword(s):  

1993 ◽  
Vol 89 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Jeff S. Kuehny ◽  
Mary C. Halbrooks

1994 ◽  
Vol 90 (4) ◽  
pp. 739-747 ◽  
Author(s):  
Diana Lee ◽  
Barbara A. Moffatt

Sign in / Sign up

Export Citation Format

Share Document