Improving photosynthetic performance and some fruit quality traits in mango trees by shading

Title:

Improving photosynthetic performance and some fruit quality traits in mango trees by shading

Creator:

Jutamanee, K. and Onnom, S.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:722a41f0-0f81-4c98-a8b1-b41e7273e578
uuid:722a41f0-0f81-4c98-a8b1-b41e7273e578
issn:0300-3604
doi:10.1007/s11099-016-0210-1

Subject:

chlorofyl, teplota, stín, chlorophyll, temperature, shade, kvalita ovoce, fluorescence chlorofylu, nadměrné ozařování, fotoinhibice, rychlost přenosu elektronů, mango, ozáření, fruit quality, chlorophyll fluorescence, excessive irradiation, net photosynthetic rate, photoinhibition, electron transport rate, irradiation, nonphotochemical quenching, peel color, photochemical quenching coefficient, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

Excess solar radiation under hot climate can lead to decline in photosynthetic activity with detrimental effects on growth and yield. The aim of this study was to evaluate the use of a transparent plastic roof as shading for diurnal changes in photosynthetic gas exchange, chlorophyll fluorescence, fruit set and quality of mango (Mangifera indica L.) cv. 'Nam Dok Mai' growth in the field conditions. Fully expanded leaves were examined either shaded by the plastic roof or sunlit under natural conditions. Leaf temperature and leaf-to-air vapour pressure deficit of the shaded leaves measured on the clear day were lowered compared to those of the sunlit leaves. It resulted in increased stomatal conductance and photosynthetic rates of the shaded leaves compared to those of the sunlit leaves, especially from the morning to midday. Furthermore, the reversible decrease of the maximal quantum yield of PSII was more pronounced in the sunlit leaves than that in the shaded ones. Shading increased the total fruit number; the shaded fruits developed better external color than that of the sun-exposed fruits. Our results indicated that shading could maintain the high photosynthetic activity by reducing stomatal limitations for carbon supply and was effective in alleviating the photoinhibitory damage to PSII during bright and clear days with excessive radiation. Finally, shading could increase the number of fruits and improve mango peel color., K. Jutamanee, S. Onnom., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

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

Coverage:

542-550

Source:

Photosynthetica | 2016 Volume:54 | Number:4

Harvested from:

CDK

Metadata only:

false