<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The reduction in growth and development of plants constantly exposed to different ranges of hypergravity (acceleration more than 1 g) is adequately documented. However, earlier studies did not reveal the threshold hypergravity value at which these effects were seen. The understanding of the threshold g-value is an important consideration while we plan hypergravity experiments as different plants can perceive and respond differently at the same g-value. The aim of the present work is to study the effect on growth and photosynthetic parameters as well as to assess the threshold values in wheat seedlings grown from hypergravity-exposed seeds. Healthy wheat seeds were immersed in distilled water for 24 hours and exposed to hypergravity values ranging from 200 g to 1,000 g for a short duration of 10 minutes and sown on 0.8% agar gel. All the measurements were done on the fifth day after sowing. Results obtained showed significant reduction in growth and photosynthetic parameters in seedlings raised from hypergravity-treated wheat seeds. Interestingly, the reduction was started at 400 g and was found to reach a maximum at 1,000 g. Probably this would be the first study reporting the threshold of high g forces for growth and photosynthetic parameters when seeds were exposed to hypergravity.</p>
</abstract>

The reduction in growth and development of plants constantly exposed to different ranges of hypergravity (acceleration more than 1 g) is adequately documented. However, earlier studies did not reveal the threshold hypergravity value at which these effects were seen. The understanding of the threshold g-value is an important consideration while we plan hypergravity experiments as different plants can perceive and respond differently at the same g-value. The aim of the present work is to study the effect on growth and photosynthetic parameters as well as to assess the threshold values in wheat seedlings grown from hypergravity-exposed seeds. Healthy wheat seeds were immersed in distilled water for 24 hours and exposed to hypergravity values ranging from 200 g to 1,000 g for a short duration of 10 minutes and sown on 0.8% agar gel. All the measurements were done on the fifth day after sowing. Results obtained showed significant reduction in growth and photosynthetic parameters in seedlings raised from hypergravity-treated wheat seeds. Interestingly, the reduction was started at 400 g and was found to reach a maximum at 1,000 g. Probably this would be the first study reporting the threshold of high g forces for growth and photosynthetic parameters when seeds were exposed to hypergravity.

Short-Term Hypergravity-Induced Changes in Growth, Photo synthetic Parameters, and Assessment of Threshold Values in Wheat (<italic>Triticum aestivum</italic> L.)

Gravitational and Space Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Short-Term Hypergravity-Induced Changes in Growth, Photo synthetic Parameters, and Assessment of Threshold Values in Wheat ( L.)

The reduction in growth and development of plants constantly exposed to different ranges of hypergravity (acceleration more than 1 g) is adequately documented....

Short-Term Hypergravity-Induced Changes in Growth, Photo synthetic Parameters, and Assessment of Threshold Values in Wheat (Triticum aestivum L.)

Article Category: Research Note

Published Online: Apr 13, 2022

Page range: 10 - 17

DOI: https://doi.org/10.2478/gsr-2022-0002

Keywords
Chlorophyll fluorescence, hypergravity, photosynthetic performance, threshold, wheat

© 2022 Jyotsana Dixit et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Short-Term Hypergravity-Induced Changes in Growth, Photo synthetic Parameters, and Assessment of Threshold Values in Wheat (Triticum aestivum L.)

Article Category: Research Note

Published Online: Apr 13, 2022

Page range: 10 - 17

DOI: https://doi.org/10.2478/gsr-2022-0002

KeywordsChlorophyll fluorescence, hypergravity, photosynthetic performance, threshold, wheat

© 2022 Jyotsana Dixit et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Chlorophyll fluorescence, hypergravity, photosynthetic performance, threshold, wheat