Interaction Effects of Water Stress and Nitrogen Fertilizer on Node Number and Root Length of Sunflower (Helianthus annuus L.)

2000 ◽  
Vol 3 (7) ◽  
pp. 1164-1165
Author(s):  
Akbar Ali Meo
Keyword(s):  
Water Stress ◽  
Helianthus Annuus ◽  
Nitrogen Fertilizer ◽  
Root Length ◽  
Interaction Effects ◽  
Node Number ◽  
Helianthus Annuus L

scholarly journals In vitro and in vivo water stress in sunflower, Helianthus annuus L

Helia ◽  
2004 ◽  
Vol 27 (40) ◽  
pp. 227-236 ◽  
Author(s):  
H. Turhan ◽  
I. Baser
Keyword(s):  
Water Stress ◽  
Helianthus Annuus ◽  
Helianthus Annuus L

Water Stress in Sunflower (Helianthus annuus L.): I. Effect on Plant Development

1980 ◽  
Vol 46 (1) ◽  
pp. 61-70 ◽  
Author(s):  
T. M. YEGAPPAN ◽  
D. M. PATON ◽  
C. T. GATES ◽  
W. J. MÜLLER
Keyword(s):  
Water Stress ◽  
Helianthus Annuus ◽  
Plant Development ◽  
Helianthus Annuus L

scholarly journals EFFECT OF OSMOTIC PRESSURE ON GERMINATION OF SUNFLOWER SEEDS (Helianthus annuus L.) / EFECTO DE LA PRESION OSMOTICA SOBRE LA GERMINACION DE SEMILLAS DEL GIRASOL (Helianthus annuus L.) / INFLUENCE DE LA PRESSION OSMOTIQUE SUR LA GERMINATION DE LA SEMENCE DE TOURNESOL (Helianthus annuus L.)

Helia ◽  
2001 ◽  
Vol 24 (35) ◽  
pp. 129-134 ◽  
Author(s):  
Mohammed El Midaoui ◽  
Ahmed Talouizte ◽  
Mohamed Benbella ◽  
Hervé Serieys ◽  
Yves Griveau ◽  
...  
Keyword(s):  
Water Stress ◽  
Helianthus Annuus ◽  
Crop Production ◽  
Water Shortage ◽  
Limiting Factor ◽  
Arid Areas ◽  
Sunflower Seeds ◽  
Helianthus Annuus L ◽  
Significant Difference ◽  
Semi Arid

SUMMARYIn arid and semi arid areas, water is the most limiting factor of crop production. Germination is susceptible to water shortage. Experimentation was undertaken to study the effect of water stress on germination of seeds of three sunflower genotypes (Oro 9, Mirasol and Albena). Six PEG 6000 osmotic constraints were tested (0, -0.4, -0.6, -1, -1.2 and -1.6 MPa). Results showed no significant difference between germination percent of the control and -0.4 MPa treatment and between -0.8, -1 and -1.2 MPa treatments. Germination percent was most reduced at -1.6 MPa (-65%). Mean germination duration was also affected and the highest value was obtained for -1.6 MPa (4.95 days, related to an increase of 185%). Differences between genotypes were significant in the treatment at -1 MPa.

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