Effect of Dormancy Relieving Compounds on the Seed Germination of Non-dormantAllenrolfea occidentalisunder Salinity Stress | Zendy

Bilquees Gul | Zendy

Open Access

Effect of Dormancy Relieving Compounds on the Seed Germination of Non-dormantAllenrolfea occidentalisunder Salinity Stress

Author(s) -

Bilquees Gul

Publication year - 1998

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1006/anbo.1998.0707

Subject(s) - germination , salinity , fusicoccin , biology , dormancy , ethephon , horticulture , botany , thiourea , potassium nitrate , agronomy , chemistry , potassium , ethylene , ecology , enzyme , biochemistry , atpase , organic chemistry , catalysis

Allenrolfea occidentalis (Chenopodiaceae) is a highly salt tolerant plant species that is widely distributed in inland salt marshes and salt playas of the western United States. We investigated the influence of dormancy-relieving compounds (fusicoccin, ethephon, nitrate and thiourea) in alleviating salinity stress on the seed germination of A. occidentalis. Seed germination decreased with an increase in salinity and no seed germinated at 800 mm NaCl. Fusicoccin (5 lm), ethephon (10 mm) and nitrogenous compounds (20 mm nitrate and 10 mm thiourea) were able to counteract the inhibition produced by salinity treatments. All dormancy relieving compounds significantly (P ! 0‐0001) promoted germination at all salinity concentations. Fusicoccin completely reversed the inhibitory eects of salinity on seed germination of A. occidentalis. Ethephon application significantly promoted germination at all salinities. Nitrate and thiourea were relatively less eective in alleviating the eects of high salinity on germination. # 1998 Annals of Botany Company

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