Next Article in Journal
QTL Analysis for Drought Tolerance in Wheat: Present Status and Future Possibilities
Next Article in Special Issue
Response of Chlorophyll, Carotenoid and SPAD-502 Measurement to Salinity and Nutrient Stress in Wheat (Triticum aestivum L.)
Previous Article in Journal
Development and Testing of Cool-Season Grass Species, Varieties and Hybrids for Biomass Feedstock Production in Western North America
Previous Article in Special Issue
Genetic Diversity in Barley and Wheat for Tolerance to Soil Constraints
Open AccessArticle

A Short Non-Saline Sprinkling Increases the Tuber Weights of Saline Sprinkler Irrigated Potatoes

South Australian Research and Development Institute, PIRSA, Loxton Centre, P.O. Box 411, Loxton, SA 5333, Australia
Sentek Pty Ltd., 77 Magill Rd., Stepney, SA 5069, Australia
School of Medicine, Flinders University, G.P.O. Box 2100, Adelaide, SA 5001, Australia
Author to whom correspondence should be addressed.
Academic Editor: Matthew Gilliham
Agronomy 2017, 7(1), 4;
Received: 31 August 2016 / Revised: 4 December 2016 / Accepted: 15 December 2016 / Published: 3 January 2017
(This article belongs to the Special Issue Crop Salinity Tolerance)
Previous work has shown that a short non-saline sprinkling, following saline sprinkling, increased crop growth. We incorporated this finding into an investigation of two approaches to the conjunctive use of saline and non-saline water sources for sprinkler irrigation of potatoes viz., (i) mixing waters prior to application, and (ii) keeping waters temporally separate, that is commencing each irrigation with saline water and finishing it with non-saline sprinkling. The latter approach delayed canopy senescence and increased tuber weight by at least 150%. Under both approaches, soil salinities and leaf and tuber concentrations of Na+ and Cl were similar. Thus, the advantages of a non-saline sprinkling cannot be explained in terms of its effect on either soil osmotic potential or bulk tissue concentrations of putatively toxic ions Na+ and Cl. We propose that the positive effect of finishing irrigations with a non-saline sprinkling may be attributed to either dilution, and hence increase in osmotic potential, of the water film that remains on the leaf after each irrigation or its effect on the distribution of the putatively toxic ions Na+ and Cl within tissue. View Full-Text
Keywords: Salinity; sprinkling; conjunctive; leaf; osmotic; sodium; chloride Salinity; sprinkling; conjunctive; leaf; osmotic; sodium; chloride
Show Figures

Figure 1

MDPI and ACS Style

Stevens, R.M.; Pech, J.M.; Grigson, G.J. A Short Non-Saline Sprinkling Increases the Tuber Weights of Saline Sprinkler Irrigated Potatoes. Agronomy 2017, 7, 4.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Search more from Scilit
Back to TopTop