Effects of red to far-red light ratio on growth and photosynthetic characteristics of tomato seedlings under calcium nitrate stress

Title:

Effects of red to far-red light ratio on growth and photosynthetic characteristics of tomato seedlings under calcium nitrate stress

Creator:

Zhou, X.T., Li, Z.L., He, J.J., Wang, X.Y., Liu, Q.L., Huang, J., Xie, Y.D., and He, Z.Q.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:2b597093-60e3-4f34-9ece-82d2af05bef2
uuid:2b597093-60e3-4f34-9ece-82d2af05bef2
doi:10.32615/ps.2021.052

Subject:

calcium nitrate stress, chlorophyll fluorescence, photosynthesis, red to far-red light ratio, salt stress, and tomato

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

Secondary soil salinization causes plant stress, which can be relieved by different ratios of red to far-red light (R:FR). Our study aimed to elucidate the role of low R:FR ratios treatments on photosynthesis and growth of tomato seedlings in salinized soils. Tomato seedlings were treated under three R:FR ratios and calcium nitrate was applied simultaneously. The results showed that the treatments under low R:FR ratios stimulated growth parameters of tomato seedlings under calcium nitrate stress, the best impact being achieved at the R:FR ratio of 0.7 in this experiment. Low R:FR ratios treatments increased proline content as well as PSII maximum efficiency, actual electron transport operating efficiency, and photochemical quenching of tomato seedlings under calcium nitrate stress but decreased the value of nonphotochemical quenching. Moreover, low R:FR ratios treatments promoted net photosynthetic rate and increased the expression of a Rubisco gene. In conclusion, low R:FR ratios treatments could improve the salt resistance of greenhouse tomato plants.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

625-632

Source:

Photosynthetica | 2021 Volume:59 | Number:4

Harvested from:

CDK

Metadata only:

false