Effect of diurnal irradiance on night-chilling tolerance of six rubber cultivars

Title:

Effect of diurnal irradiance on night-chilling tolerance of six rubber cultivars

Creator:

Tian, Y.-H., Yuan, H.-F., Xie, J., Deng, J.-W., Dao, X.-S., and Zheng, Y.-L.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:b685a60f-a78a-4485-9963-8f90df902da8
uuid:b685a60f-a78a-4485-9963-8f90df902da8
issn:0300-3604
doi:10.1007/s11099-016-0192-z

Subject:

fotosyntéza, photosynthesis, stomatal conductance, soluble sugar content, chlorophyll fluorescence, gas exchange, reactive oxygen species, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The rubber tree (Hevea brasiliensis) is an important tropical crop with a high economic value that has been successfully cultivated in Xishuangbanna, China. Xishuangbanna has a long dry season (November-February) with cold nights and frequent fog events. Thus, it is important to select chilling-tolerant cultivars in order to understand better the role of fog in protecting rubber tree from chilling-induced photodamage. In this study, we examined the photosynthetic responses of six rubber tree cultivars (Lan 873, Yunyan 77-2, Yunyan 77-4, GT1, Reken 523, and Reyan 733-97) to night-chilling stress (0, 5, and 10°C) and two different irradiances (100 and 50% of full sunlight). Our results showed that all six cultivars could withstand nights at 10°C for three days, while night chilling at 0 and 5°C impaired photosynthesis, which was indicated by photoinhibition, decrease of soluble protein content, and accumulation of malondialdehyde. Reken 523 and Reyan 733-97 were more sensitive to night chilling than other cultivars. Low irradiance (50% of full sunlight) after the chilling treatment apparently mitigated the effect of night-chilling stress. It indicates that frequent fog events after cold nights might greatly contribute to the success of rubber tree cultivation in Xishuangbanna., Y.-H. Tian, H.-F. Yuan, J. Xie, J.-W. Deng, X.-S. Dao, Y.-L. Zheng., and Seznam literatury

Language:

Multiple languages

Rights:

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

Coverage:

374-380

Source:

Photosynthetica | 2016 Volume:54 | Number:3

Harvested from:

CDK

Metadata only:

false