Isabgol (Plantago ovata Forsk) seed germination and emergence as affected by environmental factors and planting depth
عنوان مقاله: Isabgol (Plantago ovata Forsk) seed germination
and emergence as affected by environmental factors
and planting depth
شناسه ملی مقاله: JR_IJPPG-6-2_004
منتشر شده در شماره 2 دوره 6 فصل در سال 1391
شناسه ملی مقاله: JR_IJPPG-6-2_004
منتشر شده در شماره 2 دوره 6 فصل در سال 1391
مشخصات نویسندگان مقاله:
F. Ghaderi-Far - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
S.M. Alimagham - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
A.M. Kameli - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
M. Jamali - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
خلاصه مقاله:
F. Ghaderi-Far - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
S.M. Alimagham - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
A.M. Kameli - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
M. Jamali - Gorgan University of Agricultural Science and Natural Resources, Dept. of Agronomy, Iran.
Isabgol (Plantago ovata Forsk) seed germination and emergence in response todrought (Polyethylene glycol 8000) and salinity stress (NaCl), temperature, pH andplanting depth were studied in laboratory and greenhouse experiments. Base,optimum and ceiling germination temperature were estimated as 3.35, 21.24 and35.04 oC, respectively. Isabgol seed is rather tolerant to low water potential and highsalt stress. Salinity stress up to 200 mM had no effect on Isabgol seed germination,but the germination decreased by increasing the salt concentration. The drought andsalinity required for 50% inhibition of maximum germination were 328 mM and -1.24 MPa, respectively. High percentage of seed germination (> 93%) was observedat pH=4-6 and declined to 52-58% at alkaline (pH 7-9) pH. Maximum seedlingemergence occurred when the seeds were planted on the soil surface and decreasedwith increasing the depth of planting; no seed emerged from depth of 3 cm.
کلمات کلیدی: germination, pH, Salinity stress, Soil depth, Temperature, Water stress
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/939285/