Full Text:   <2180>

CLC number: X5

On-line Access: 

Received: 2008-01-14

Revision Accepted: 2008-02-04

Crosschecked: 0000-00-00

Cited: 28

Clicked: 5223

Citations:  Bibtex RefMan EndNote GB/T7714

-   Go to

Article info.
1. Reference List
Open peer comments

Journal of Zhejiang University SCIENCE B 2008 Vol.9 No.5 P.427~434


Differential response of root morphology to potassium deficient stress among rice genotypes varying in potassium efficiency

Author(s):  Yan-bo JIA, Xiao-e YANG, Ying FENG, Ghulam JILANI

Affiliation(s):  MOE Key Laboratory of Polluted Environments Remediation and Ecosystem Health, Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s):   xyang@zju.edu.cn

Key Words:  Genotypic difference, Potassium (K) efficiency, Root surface area, Fine root development, Root cell utra-structure

Share this article to: More <<< Previous Article|

Yan-bo JIA, Xiao-e YANG, Ying FENG, Ghulam JILANI. Differential response of root morphology to potassium deficient stress among rice genotypes varying in potassium efficiency[J]. Journal of Zhejiang University Science B, 2008, 9(5): 427~434.

@article{title="Differential response of root morphology to potassium deficient stress among rice genotypes varying in potassium efficiency",
author="Yan-bo JIA, Xiao-e YANG, Ying FENG, Ghulam JILANI",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Differential response of root morphology to potassium deficient stress among rice genotypes varying in potassium efficiency
%A Yan-bo JIA
%A Xiao-e YANG
%A Ying FENG
%A Ghulam JILANI
%J Journal of Zhejiang University SCIENCE B
%V 9
%N 5
%P 427~434
%@ 1673-1581
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B0710636

T1 - Differential response of root morphology to potassium deficient stress among rice genotypes varying in potassium efficiency
A1 - Yan-bo JIA
A1 - Xiao-e YANG
A1 - Ying FENG
A1 - Ghulam JILANI
J0 - Journal of Zhejiang University Science B
VL - 9
IS - 5
SP - 427
EP - 434
%@ 1673-1581
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B0710636

Disparity in the root morphology of six rice (Oryza sativa L.) genotypes varying in potassium (K) efficiency was studied with three K levels: 5 mg/L (low), 10 mg/L (moderate) and 40 mg/L (adequate) in hydroponic culture. Morphological parameters included root length, surface area, volume and count of lateral roots, as well as fine (diameter<0.2 mm) and thick (diameter>0.2 mm) roots. The results indicate that the root growth of all genotypes was reduced under low K, but moderate K deficiency increased the root length of the efficient genotypes. At deficient and moderate K levels, all the efficient rice genotypes developed more fine roots (diameter<0.2 mm) than the inefficient ones. Both fine root count and root surface area were found to be the best parameters to portray K stress in rice. In accordance with the root morphology, higher K concentrations were noted in shoots of the efficient genotypes when grown at moderate and deficient K levels, indicating that root morphology parameters are involved in root uptake for K and in the translocation of K up to shoots. K deficiency affected not only the root morphology, but also the root ultra-structure. The roots of high-efficient genotypes had stronger tolerance to K deficient stress for root membrane damage, and could maintain the developed root architecture to adapt to the low K growth medium.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


[1] Baligar, V.C., Barber, S.A., 1979. Genotype differences of corn in ion uptake. Agron. J., 71(5):870-873.

[2] Chen, J.J., Gabelman, W.H., 1995. Isolation of tomato strains varying in potassium acquisition using a sand-zeolite culture system. Plant Soil, 176(1):65-70.

[3] Dobermann, A., Kassman, K.G., Mamaril, C.P., Sheehy, J.E., 1998. Management of phosphorus, potassium, and sulfur in intensive irrigated lowland rice. Field Crops Res., 56(1-2):113-138.

[4] Høgh-Jensen, H.H., Pedersen, M.B., 2003. Morphological plasticity by crop plants and their potassium use efficiency. J. Plant Nutr., 26(5):969-984.

[5] James, D.W., Tindall, T.A., Turst, C.J., Hussein, A.N., 1995. Alfalfa cultivar responses to phosphorus and potassium deficiency: biomass. J. Plant Nutr., 18(11):2431-2445.

[6] Liu, F.H., Liang, X.N., Zhang, S.W., 2000. Accumulation and utilization efficiency of potassium in ramie varieties. J. Plant Nutr., 23(2):785-792.

[7] Liu, X.G., Liu, Z.X., Liu, F.X., 1987. Screening of rice genotypes tolerant to low K and their K uptake characteristics. J. Fujian Agric. Acad., 2(2):10-17 (in Chinese).

[8] Lynch, J.P., Lynch, A.F., Jonathan, P., 2007. Roots of the second green revolution. Aust. J. Bot., 55(5):493-512.

[9] Marschner, H., 1995. Mineral Nutrition of Higher Plants. Academic Press, San Diego.

[10] Mengel, K., Steffens, D., 1985. Potassium uptake of ryegrass (Lolium perenne) and red clover (Trifolium pratense) as related to root parameters. Biol. Fert. Soils, 1(1):53-58.

[11] Peng, H.Y., Tian, S.K., Yang, X.E., 2005. Changes of root morphology and Pb uptake by two species of Elsholtzia under Pb toxicity. J. Zhejiang Univ. Sci. B, 6(6):546-552.

[12] Pettersson, S., Jensén, P., 1983. Variation among species and varieties in uptake and utilization of potassium. Plant Soil, 72(2-3):231-237.

[13] Rengel, Z., Marschner, P., 2005. Nutrient availability and management in the rhizosphere: exploiting genotypic differences. New Phytol., 168(2):305-312.

[14] Sale, P.W.G., Campbell, L.C., 1987. Differential response to K deficiency among soybean cultivars. Plant Soil, 104(2):183-190.

[15] Shea, P.E., Gerloff, G.C., Gabelman, W.H., 1968. Differing efficiencies of potassium utilization in strains of snapbeans, Phaseolus vulgaris L. Plant Soil, 28(2):337-346.

[16] Wang, X.G., Cao, M.J., Wang, W., 2005. Effect of potassium concentration in the soil on the morphological and physiological characteristics of soybean root. Soybean Sci., 24(2):126-130 (in Chinese).

[17] Witt, C.A., Dobermann, S., Abdulrachman, S., Gines, H.C., Wang, G.H., 1999. Internal nutrient efficiencies of irrigated lowland rice in tropical and subtropical Asia. Field Crops Res., 63(2):113-138.

[18] Xie, Y.H., An, S.Q., Wu, B.F., Wang, W.W., 2006. Density-dependent root morphology and root distribution in the submerged plant Vallisneria natans. Environ. Exp. Bot., 57(1-2):195-200.

[19] Yang, X.E., Liu, J.X., Wang, W.M., Li, H., Luo, A.C., Ye, Z.Q., Yang, Y.A., 2003. Genotypic differences and some associated plant traits in potassium internal use efficiency of lowland rice (Oryza sativa L.). Nutr. Cycl. Agroecosys., 67(3):273-282.

[20] Yang, X.E., Wang, W.M., He, Z.L., 2004a. Physiological and Genetic Characteristics of High Nutrient Efficiency of Plants in Acid Soils. In: Wilson, M.J., He, Z.L., Yang, X.E. (Eds.), The Red Soils of China: Their Nature, Management and Utilization, Kluwer Academic Publishers, Dordrecht, the Netherlands, p.78-83.

[21] Yang, X.E., Liu, J.X., Wang, W.M., 2004b. Potassium internal use efficiency relative to growth vigor, potassium distribution, and carbohydrate allocation in rice genotypes. J. Plant Nutr., 27(5):837-852.

[22] Yang, X.E., Li, H., Kirk, G.J.D., Dobbermann, A., 2005. Room-induced changes of potassium in the rhizosphere of lowland rice. Commun. Soil Sci. Plant Anal., 36(13):1947-1963.

[23] Zhang, G.P., Chen, J.X., Tirore, E.A., 1999. Genotypic variation for potassium uptake and utilization efficiency in wheat. Nutr. Cycl. Agroecosys., 54(1):41-48.

[24] Zou, C.Q., Li, Z.S., Li, J.Y., 2001. Study on difference in morphological and physiological characters of wheat varieties to potassium. Plant Nutr. Fert. Sci., 7(1):36-43 (in Chinese).

Open peer comments: Debate/Discuss/Question/Opinion


Please provide your name, email address and a comment

Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - Journal of Zhejiang University-SCIENCE