ISSN:
1573-5036
Schlagwort(e):
Alkalinity
;
Drought
;
Germination
;
Grasses
;
Osmotic tension
;
pH Salinity
;
Salt stress
;
Seed germination
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
Notizen:
Abstract Effects of osmotic tension, salinity and alkalinity were studied on seed germination of three grasses of Karnal-Kurukshetra region with a view to evaluating their capacity to establish through seeds in saline and alkaline environments. Experiments were conducted under controlled conditions in petri dishes lined with blotting papers that were wetted with non-ionic osmotic solutions of mannitol (−2.5 to −15 bars); salinized solutions of NaCl, Na2SO4, MgCl2 and CaSO4 (Electrical conductivity, EC, ranging from 4 to 16 dS/m), alkaline solutions of Na2CO3 (pH 9 to 10) and also in dishes filled with alkali soil grades of the same pH range. Seed germination of all the three grasses was observed to be delayed and finally suppressed by the stress conditions, magnitude of reduction being related to the kind and level of stress as well as to the species. WhileSorghum halepense showed a strikingly superior stress-resistance,Panicum miliare did not appear to be suited to establishment through seeds.Diplachne fusca, on the other hand, was found to be remarkably adapted to alkalinity.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF02185699
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