Drought-hardening improves drought tolerance in Nicotiana tabacum at physiological, biochemical, and molecular levels.

ABSTRACT:

Background

Drought stress is the most harmful one among other abiotic stresses with negative impacts on crop growth and development. Drought-hardening is a feasible and widely used method in tobacco seedlings cultivation. It has gained extensive interests due to its role in improving drought tolerance. This research aimed to investigate the role of drought-hardening and to unravel the multiple mechanisms underlying tobacco drought tolerance and adaptation.

Results

This study was designed in which various drought-hardening treatments (CK (no drought-hardening), T1 (drought-hardening for 24 h), T2 (drought-hardening for 48 h), and T3 (drought-hardening for 72 h)) were applied to two tobacco varieties namely HongHuaDaJinYuan (H) and Yun Yan-100 (Y). The findings presented a com

SUBMITTER: Khan R 

PROVIDER: S-EPMC7584104 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature