期刊名称：Current Journal of Applied Science and Technology
印刷版ISSN：2457-1024
出版年度：2019
卷号：38
期号：6
页码：1-8
DOI：10.9734/cjast/2019/v38i630414
语种：English
出版社：Sciencedomain International
摘要：Background/Aim: The present investigation was undertaken to study the mutagenic effectiveness
and efficiency in M1V1 generation and to study effect of gamma rays on spectrum of morphological
mutation in Jasminum grandiflorum Linn. cv. White Pitchi.
Methods: Terminal cuttings were treated with four doses of gamma rays viz., 10, 15, 20 and 25 Gy
and four doses of EMS viz., 25, 30, 35 and 40 mM separately. Both mutagens created a high
frequency as well as a wide spectrum of mutation.
Results: Totally five types of chlorophyll mutants viz., xantha, viridis, yellow viridis, variegata
and tigrina were observed. The mutagenic effectiveness and efficiency were calculated
based on biological damage as well as chlorophyll mutation frequency on M1 plants. The
mutagenic treatments were effective in inducing various types of morphological macro
mutants, with few of them showing significant changes in plant height, flowering parameters and
flower yield. The lower mutagen doses were associated with higher mutagenic effectiveness and
efficiency.
Conclusion: The present study indicated that the physical mutagen gamma rays were
more effective and efficient in causing mutations as compared to the chemical mutagen EMS.
