Comparison of gas exchange and chlorophyll fluorescence of low-potassium-tolerant and -sensitive soybean [Glycine max (L.) Merr.] cultivars under low-potassium condition

The effects of potassium (K) deficiency on chlorophyll (Chl) content, photosynthetic gas exchange, and photosystem II (PSII) photochemistry during the seedling stage were investigated in two soybean [Glycine max (L.) Merr.] cultivars, low-K sensitive Tiefeng31 and low-K tolerant Shennong6. The culti...

Full description

Saved in:
Bibliographic Details
Published in:Photosynthetica 2011-12, Vol.49 (4), p.633-636
Main Authors: Li, X. -T, Cao, P, Wang, X. -G, Cao, M. -J, Yu, H. -Q
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Brief Communication
chlorophyll
cultivars
fluorescence
gas exchange
Glycine max
Life Sciences
photochemistry
photosystem II
Plant Physiology
potassium
seedlings
soybeans
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of potassium (K) deficiency on chlorophyll (Chl) content, photosynthetic gas exchange, and photosystem II (PSII) photochemistry during the seedling stage were investigated in two soybean [Glycine max (L.) Merr.] cultivars, low-K sensitive Tiefeng31 and low-K tolerant Shennong6. The cultivars were grown hydroponically in K-sufficient (KS) and K-deficient (KD) solutions. Photosynthetic gas exchange and Chl content in Tiefeng31 were severely affected by the low K condition, but were almost unaffected in Shennong6. This difference is in accordance with the PSII photochemistry in the plants, indicating that the photosynthetic apparatus of Shennong6 is more tolerant to low-K stress than that of Tiefeng31.
ISSN:0300-3604
1573-9058
DOI:10.1007/s11099-011-0073-4