Seed phosphorus is important for early seedling growth. Increase in seed P is believed to improve seedling establishment and vigour. Arsenic is an environmental contaminant causing widespread toxicity, in the agricultural system as a result of continuous lifting of contaminated ground
water for irrigation. The present experiment was aimed to investigate the tolerance of popular rice cultivars, 'Satabdi', 'Kargil Minikit', 'Lallat' and 'Khitish', to arsenic stress during early seedling growth and to correlate the responses with grain phosphorus content. Both germination
percentage and seedling growth parameters were negatively aff ected with increasing arsenic in all rice cultivars. However, 'Khitish' showed better response than other cultivars under arsenic stress. The correlation studies revealed that grain phosphorus content was positively associated with
arsenic tolerance at germination and early seedling stage and its eff ect was more pronounced particularly under higher arsenic levels.
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Document Type: Research Article
April 1, 2017
This article was made available online on February 1, 2017 as a Fast Track article with title: "Seed P content: a potential marker of arsenic tolerance during germination and seedling growth of rice".
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