Role of L-Ornithine in Mitigation of Salt Stress In Allium Cepa L.

نویسندگان

چکیده

Effects of L-ornithine (150 mg/l) on the germination, seedling growth, mitotic index, chromosome aberrations and micronucleus frequency Allium cepa L. bulbs germinated at 0.125 M salinity were studied. The radicle number group III in medium with ornithine alone as compared to ones I (control) which distilled water medium. But, their germination percentage, length fresh weight statistically same bulbs. Besides, chromosomal abnormalities root-tip meristematic cells showed increased However, index value Salt stress significantly inhibited growth A. Moreover, it reduced root-meristem fairly frequency. On other hand, inhibitive effect salt was dramatically alleviated varying degrees by application. ineffective reducing detrimental aberrations. lenght, number, weight, II seedlings grown 27%, 13.5 mm, 18.4, 7.1 g, 5.5, 18.3 60.8%, respectively while these values became 68%, 16.4 16.4, 10.5 15.6, 7.6 74.8% IV treated L-ornithine. Bangladesh J. Bot. 50(4): 1165-1171, 2021 (December)

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ژورنال

عنوان ژورنال: Bangladesh Journal of Botany

سال: 2021

ISSN: ['0253-5416', '2079-9926']

DOI: https://doi.org/10.3329/bjb.v50i4.57085