THE PHYSIOLOGICAL POTENTIAL OF MARANDU GRASS SEEDS UNDER WATER STRESS CONDITIONED WITH ASCORBIC ACID
نویسندگان
چکیده
Water limitation is one of the main factors that influence germination process, affecting crop establishment. Thus, alternatives capable lessening such effects become great relevance. The aim this study was to evaluate effect ascorbic acid dosage on This aimed marandu grass seeds submitted different water conditions. After establishing immersion time for seed conditioning based soakingcurve, experiment conducted physiological potential, in a 3x5 factorial scheme, composed three osmotic potentials (0; -0.2 and -0.4 MPa) five doses (0, 20, 40, 60 80 mM), with four repetitions. germination, root protrusion, first count, speed index, length seedling shoots were evaluated. potential negatively affected by stress induced polyethylene glycol 6000, deleterious MPa. However, at between 40 50 mM promoted improvements performance alleviated harmful low availability under MPa stimulating tolerance stress. Improvements also obtained shoot growth seedlings originated from after conditioning.
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ژورنال
عنوان ژورنال: Acta Biológica Colombiana
سال: 2023
ISSN: ['0120-548X', '1900-1649']
DOI: https://doi.org/10.15446/abc.v28n1.96946