Allelopathic effects of leachates of Casuarina glauca Sieb. ex Spreng. and Populus nigra L. on germination and seedling growth of Triticum durum Desf. under laboratory conditions

2018 ◽  
Vol 93 (5) ◽  
pp. 1973-1983
Author(s):  
Chadlia Hachani ◽  
Mejda Abassi ◽  
Chayma Lazhar ◽  
Mohammed S. Lamhamedi ◽  
Zoubeir Béjaoui
Keyword(s):  
Seedling Growth ◽  
Triticum Durum ◽  
Populus Nigra ◽  
Casuarina Glauca ◽  
Laboratory Conditions ◽  
Allelopathic Effects ◽  
Triticum Durum Desf

scholarly journals Effect of salt stress (sodium chloride) on germination and seedling growth of durum wheat (Triticum durum Desf.) genotypes

2014 ◽  
Vol 6 (4) ◽  
pp. 320-325 ◽  
Author(s):  
Sourour AYED ◽  
Neila RASSAA ◽  
Zoubeir CHAMEKH ◽  
Saddreddine BEJI ◽  
Feker KAROUI ◽  
...  
Keyword(s):  
Salt Stress ◽  
Sodium Chloride ◽  
Durum Wheat ◽  
Seedling Growth ◽  
Triticum Durum ◽  
Triticum Durum Desf

Allelopathic Effects of Introduced Eucalyptus Gomphocephala Extracts on Germination and Seedling Growth of Native Ceratonia siliqua in Libya

2021 ◽  
pp. 117-124
Author(s):  
Mariam F. EL-Barghathi ◽  
Ali M. Elbakkosh ◽  
Nagma F. Ammosh
Keyword(s):  
Aqueous Extract ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Germination Percentage ◽  
Allelopathic Effect ◽  
Ceratonia Siliqua ◽  
Extract Concentration ◽  
Laboratory Conditions ◽  
Allelopathic Effects ◽  
Eucalyptus Gomphocephala

The present study aimed to investigate the allelopathic effects of leaf aqueous extracts of introduced Eucalyptus gomphocephala L. (donor species) were collected during different growing seasons at different concentrations (0, 25, 50, 75, and 100% v/v) on germination percentage, average germination time, plumule and radical length, dry weight of radical and plumule and seedling vigor index (SVI) of native Ceratonia siliqua L. (recipient species) seedlings under laboratory conditions. Results suggested that the germination percentage and all growth parameters of C. siliqua were significantly reduced gradually with the increase of aqueous extract concentration levels and the reduction was varied and could be extract concentration and growing season dependent. The highest phytotoxic effect on germination and seedling growth was exhibited by E. gomphocephala aqueous extract at 100% concentration, followed by 50% concentration. Generally, it is concluded that the allelopathic effect of introduced E. gomphoracephala trees on native Ceratonia siliqua trees has been weak or no effectiveness in some cases under laboratory conditions. Keywords: Eucalyptus gomphocephala; Introduced species; Libya; Allelopathy; Ceratonia siliqua

scholarly journals Response of durum wheat (Triticum durum Desf.) growth to salt and drought stresses

2010 ◽  
Vol 46 (No. 2) ◽  
pp. 54-63 ◽  
Author(s):  
R. Sayar ◽  
H. Bchini ◽  
M. Mosbahi ◽  
H. Khemira
Keyword(s):  
Durum Wheat ◽  
Seedling Growth ◽  
Triticum Durum ◽  
Seedling Emergence ◽  
Early Seedling Growth ◽  
Emergence Rate ◽  
Early Seedling ◽  
Emergence Percentage ◽  
Triticum Durum Desf ◽  
Peg 8000

Two durum wheat (Triticum durum Desf.) cultivars were tested for salt and drought tolerance at germination, seedling emergence and early seedling growth in NaCl and PEG-8000 solutions of different osmotic potentials (–0.2, –0.4, –0.6 and –0.8 MPa). Daily and final germination and emergence percentage, as well as germination and seedling emergence rate, seedling growth, fresh and dry weight were recorded under controlled conditions. Results showed that germination and emergence rates were delayed by both solutions in both cultivars, but Omrabia showed higher germination and emergence rates than BD290273 in NaCl while BD290273 was less affected by NaCl and PEG solutions at the emergence stage. Sodium chloride had a lesser effect on both cultivars in terms of germination rate, emergence rate, final germination and emergence percentage than did PEG-8000. This conclusively proves that the adverse effect of PEG-8000 on germination, emergence and early seedling growth was due to the osmotic effect rather than to the specific ion. Seedling growth was reduced by both stresses. However, NaCl usually caused less damage than PEG to durum wheat seedlings, suggesting that NaCl and PEG acted through different mechanisms.

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