Plant responses to drought and rewatering

Xu, Zhenzhu; Zhou, Guangsheng; Shimizu, Hideyuki

doi:10.4161/psb.5.6.11398

Cited by 508 publications

(366 citation statements)

References 61 publications

(105 reference statements)

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“…In the 2015 experiment, the plant height growth rates for T1 and T2 (drought stress during S) after re-watering (during B) were 1.13 and 1.23 cm/day, while the CK was 0.95 cm/day during this period. These results were in agreement with the view of Xu et al [36] and Hao et al [37] that plant height and stem growth showed obvious compensation effects following water stress relief. …”

Section: Plant Heightsupporting

confidence: 83%

Quantitative Response of Soybean Development and Yield to Drought Stress during Different Growth Stages in the Huaibei Plain, China

et al. 2018

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Abstract:To quantitatively access the effects of drought stress during different growth stages of soybean on development process and yield, a pot-culture experiment was conducted in China's Huaibei Plain with different irrigation treatments over two seasons (2015 and 2016). Two drought stress levels (mild and severe) were applied at four growth stages for the experiment (S: seedling stage; B: branching stage; FPS: flowering and pod-setting stage; and PF: pod-filling stage). The effects of drought stress at different stages on growth and yield were evaluated and compared. Results of this two-year study showed that all growth and yield parameters were significantly affected by the water deficit during the sensitive FPS. Compared to the full irrigation treatment, severe drought stress during FPS caused a 22% loss of final plant height, 61% loss of the leaf area per plant (LAP), and 67% loss of final aboveground dry matter (ADM). Yield components also declined dramatically with water deficits during FPS and PF. Significant seed yield losses of 73-82% per plant were observed in the plants exposed to drought stress during FPS, and were also associated with the highest nonviable pod percentage of 13%. The greatest losses in 100-seed weight (42-48%) were observed under drought stress during PF. A rising trend in response to increasing soil water deficit (SWD) was observed for LAP, yield, and ADM losses. The slope (k) values of these fitting curves varied at different treatments, the highest value of k (7.37 and 8.47 in two years, respectively) was also observed in the sensitive FPS.

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Section: Plant Heightsupporting

confidence: 83%

Quantitative Response of Soybean Development and Yield to Drought Stress during Different Growth Stages in the Huaibei Plain, China

et al. 2018

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“…It is reported that the extent and magnitude of growth recovery after re-watering, depends on the intensity and duration of drought, as prolonged dry spells may cause irreversibly injury to tissues (Xu et al 2010). In the present experiments on restoring the stressed plants back to 75-80 % of the water holding capacity of the soil mixture, leaves in all the genotypes again turned green over a period of time.…”

Section: Resultsmentioning

confidence: 45%

Responses to drought induced oxidative stress in five finger millet varieties differing in their geographical distribution

Bhatt

Negi

Sharma

et al. 2011

Physiol Mol Biol Plants

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The study presents the impact of drought stress on five finger millet varieties (PR202, VL146, VL315, PES400 and VR708), representing contrasting areas of Indian sub-continent. Drought stress induced increase in the activity of superoxide dismutase, ascorbate peroxidase and glutathione reductase was higher in PR202 and VL315, while the activity was lower in the varieties PES400 and VR708. Ascorbate peroxidase : superoxide dismutase ratio, which is a crucial factor in alleviating drought stress, was higher in varieties PR202 and VL315, whilst the varieties PES400 and VR708 exhibited a lower ratio under stress. The variety PES400 recorded maximum stress induced damage, as indicated by higher accumulation of malondialdehyde and hydrogen peroxide; whereas the variety PR202 recorded least stress induced cytotoxic damage. The results clearly indicate that better drought tolerance of the variety PR202 is positively related to the capacity of its antioxidant system to scavenge reactive oxygen species, resulting in a reduced incidence of oxidative damage. Ascorbate peroxidase : superoxide dismutase ratio is found to be a critical factor governing the stress tolerance potential of different varieties. Therefore, varieties PR202 and VL315 were found to be tolerant while PES400 was susceptible to drought stress.

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“…However, photosynthetic response to the repeated cycle of drought and re-watering is varied among plant species and between different varieties within the same species (Izanloo et al, 2008;Xu et al, 2010).The variation response in photosynthesis is due to different adaptive mechanisms involving conferring drought tolerance ). These adaptations depend on the severity of the drought and the ability of the plant to respond by adjusting to the impact of stomatal or non-stomatal factors which control photosynthetic rate (Kaiser, 1987).…”

Section: Resultsmentioning

confidence: 99%

Selected physiological responses of roselle (Hibiscus sabdariffa) to drought stress

Evans¹,

Al-Hamdani²

2015

JEBAS

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This greenhouse study was carried out to determine the impact of drought on plant growth, photosynthetic rate and the recovery of photosynthesis after drought relief. Twenty four Roselle plants were equally divided between the control and the treatment groups, which received 100% and 25% soil saturation respectively. The plants were grown under greenhouse conditions with the temperature averaging 27 ± 2ºC. The treatments were applied with seven cycles of watering until the plants reached the anthesis stage. The drought influence caused a significant reduction in the plant height, flower number, and photosynthetic rate. Re-watering the plants growing under drought to 100% water saturation resulted in complete recovery of photosynthetic rate within forty-eight hours. However, rewatering to 25% showed only 30% recovery in photosynthetic rate after forty-eight hours. Photosynthetic pigments including chlorophyll a, b and carotenoid were not significantly influenced by the drought. Similarly, total phenolic compound concentration of the calyx was insignificant between the treatments. However, Anthocyanin concentration of the calyx was significantly higher under the drought treatment.

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Plant responses to drought and rewatering

Cited by 508 publications

References 61 publications

Quantitative Response of Soybean Development and Yield to Drought Stress during Different Growth Stages in the Huaibei Plain, China

Quantitative Response of Soybean Development and Yield to Drought Stress during Different Growth Stages in the Huaibei Plain, China

Responses to drought induced oxidative stress in five finger millet varieties differing in their geographical distribution

Selected physiological responses of roselle (Hibiscus sabdariffa) to drought stress

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