Response of Sorghum vulgare L. cultivars to gamma irradiation, a preliminary approach

Journal of Applied Research in Plant Sciences Pub Date : 2022-02-09 DOI:10.38211/joarps.2022.3.1.26

Ishtiaq Ahmad, Izhar Ahmad, Zahir Muhammad, Barkat Ullah

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引用次数: 1

Abstract

The seeds of four Sorghum vulgareL. cultivars (Asian, Indian, Mycho, Summer graze) exposed to various doses of gamma irradiation (15 krad, 20 krad, 25 krad, 30 krad) were critically examined for percent emergence, plumule andradical growth, fresh anddry weight and moisture contents. Irradiation doses were instrumental in creating significant variability for all traits except percent emergence, indicating that Sorghum vulgareL. cultivars did not perform uniformly across different gamma rays treatments. The cultivars varied significantly (P < 0.05) for all characters. Similarly, doses × cultivars effects were highly significant for radical growth, percent emergence, biomass as well as moisture contents, indicating greater instability of performance formentioned characters across different irradiation treatments. Mutagenic treatments shifted mean values towards negative direction for almost all traits except moisture contents. Mutagenic effectiveness was found to be dependent upon dose and cultivarsconcerned. The present study categorically showed that the applied doses of gamma irradiation were unable to enhance percent emergence and seedling growth. Inter cultivar genetic variations were observed among the cultivars

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高粱品种对γ辐射响应的初步研究

四颗高粱的种子。对不同剂量辐照(15、20、25、30)的品种(亚洲、印度、麦草、夏草)出苗率、胚芽和根茎生长、鲜重和干重以及水分含量进行了严格检测。除出苗率外，辐照剂量对所有性状均有显著的变异，表明普通高粱的出苗率较高。不同γ射线处理的品种表现不均匀。品种间各性状差异显著(P < 0.05)。同样，剂量对品种的影响在根系生长、出苗率、生物量和水分含量方面也非常显著，表明不同辐照处理对上述性状的影响更不稳定。除水分含量外，诱变处理几乎使所有性状的平均值向负方向偏移。发现诱变效果取决于剂量和有关的培养物。本研究明确表明，辐照剂量不能提高出苗率和幼苗生长。品种间存在遗传变异

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Journal of Applied Research in Plant Sciences

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