ZnO nanoparticle-based seed priming modulates early growth and enhances physio-biochemical and metabolic profiles of fragrant rice against cadmium toxicity.

ABSTRACT:

Background

Cadmium (Cd) is amongst the most toxic heavy metals that severely affects crop growth, whereas application of nanoparticles (NPs) to negate the toxic effects of heavy metals could be an effective management approach. In the present study, the seeds of two fragrant rice varieties i.e., Yuxiangyouzhan and Xiangyaxiangzhan under normal and Cd stress conditions i.e., 0 and 100 mg L^- 1 applied with four levels of ZnO NPs i.e., 0, 25, 50, and 100 mg L^- 1.

Results

Seed priming with ZnO NPs had no significant effect on the seed germination (p > 0.05) however, it substantially improved the seedling growth and other related physiological attributes under the Cd stress. The mean fresh weight of the shoot, and whole seedling was increased by 16.92-27.88%

SUBMITTER: Li Y 

PROVIDER: S-EPMC7968244 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature