Physiological efficiencies in mini-core peanut germplasm accessions during summer season

Title:

Physiological efficiencies in mini-core peanut germplasm accessions during summer season

Creator:

Singh, A. L., Nakar, R. N., Chakraborty, K., and Kalariya, K. A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:b1e9fc32-b76f-4938-a704-2453b310425b
uuid:b1e9fc32-b76f-4938-a704-2453b310425b
issn:0300-3604
doi:10.1007/s11099-014-0072-3

Subject:

fotosyntéza, photosynthesis, Indie, India, chlorophyll fluorescence, core collection, crop productivity, gene bank, Arachis hypogaea, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

In the present study, the physiological efficiencies of 181 mini-core peanut accessions (genotypes) were evaluated according to variability in their physiological performance in the field during summer (2012). Genotypes were categorized into groups of high, medium, and low physiological activity. Thirty-four genotypes showed high net photosynthetic rate (PN > 33 μmol m-2 s-1), 28 genotypes exhibited high stomatal conductance (gs > 0.54 mmol m-2 s-1), 33 genotypes manifested high transpiration rate (E > 11.8 mmol m-2 s-1), 30 genotypes performed with high water-use efficiency (WUE > 3.8), 30 genotypes reached high chlorophyll SPAD values (SCMR > 40), and 35 genotypes showed high maximum quantum yield of PSII (Fv/Fm > 0.86). In addition, few genotypes showed high values for multiple physiological traits. A total of 54 genotypes exhibited higher values in two, 20 genotypes showed a high value in three, and in eight genotypes, high values occurred in four different physiological traits. Interestingly, only two genotypes, NRCG 14493 and 14507, showed high values for five different traits. Positive correlation was observed between gs and PN, E, and gs, and between PN and Fv/Fm, while WUE and E showed a negative correlation. The genotypes with high PN, gs, and WUE coupled with high SCMR and Fv/Fm could be used in peanut crop improvement programme for yield enhancement as well as stress tolerance., A. L. Singh, R. N. Nakar, K. Chakraborty, K. A. Kalariya., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

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

Coverage:

627-635

Source:

Photosynthetica | 2014 Volume:52 | Number:4

Harvested from:

CDK

Metadata only:

false