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Title

EVALUATION AND DETERMINATION OF THE BEST HYDRO AND OSMOPRIMING TREATMENTS FOR GERMINATION PROPERTIES OF TALL WHEATGRASS (AGROPYRON ELONGATUM)

Pages

 Start Page 431 | End Page 444

Abstract

 Two separated experiments were performed to evaluate the optimum hydro and OSMOPRIMING treatments affecting A. elongatum seeds. Hydropriming was conducted using distilled water based on five hydration time levels including 6, 12, 18, 24 and 30 hours in a completely randomized block designs with three replications. OSMOPRIMING with PEG (6000) in time levels of 12, 24, 48 and 72 hours with concentration of -8, -10, -12 and -14 bars were also used. The experimental design for OSMOPRIMING factorial completely randomized block designs with three replications. The results showed that seed priming treatment significantly affected all of germination properties while the treatment for 12 hours of hydropriming had the highest effect compared to other levels of hydropriming. Meanwhile, treatment of 18 hours showed no significant difference with 12 hours expected to the percentage of germination. Treatment by -12 bars with 24 hours OSMOPRIMING showed highest effect but no significantly difference by -10 and -14 bars in 24 hours were shown. Totally, the results showed that 12 hours and -12 bar with 24 hours were best treatments in hydropriming and OSMOPRIMING compared to control, respectively. Therefore those seed treatments suggested as best treatment which improve the seed GERMINATION CHARACTERISTICS in A. elongatum.

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