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Potassium Substitution by Sodium in Root Medium Influencing Growth Behavior and Potassium Efficiency in Cotton Genotypes.
- Source :
-
Journal of Plant Nutrition . Oct2009, Vol. 32 Issue 10, p1657-1673. 17p. 6 Charts, 5 Graphs. - Publication Year :
- 2009
-
Abstract
- Potassium (K) deficiency affects cotton (Gossypium hirsutum L.) growth. Sodium (Na) can substitute K for some non-specific functions in plants. Four cotton genotypes were evaluated for their growth rates and K use efficiency grown at various K:Na. The cotton genotypes and treatments had significant (p < 0.01) effect on biomass production, growth rate related parameters, K use efficiency, and K: Na ratio. Maximum total dry matter (2.57 g plant-1) was accumulated by 'NIBGE-2' and minimum (1.91 g plant-1) was by 'FH-1000'. Maximum K:Na ratio in shoot was obtained by 'MNH-786' and minimum was by 'NIBGE-2'when 1/3rd K was replaced with Na. Genotypes and various treatments significantly (p < 0.05) influenced specific utilization rate (SUR) and K transport rate (KTR). There was a significant relationship (R2 = 0.84, n = 60) between shoot dry matter and K: Na ratio in shoot. Overall, the growth was better when K and Na were added in ratio of 3:1. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POTASSIUM
*SODIUM
*COTTON growing
*BIOMASS production
*PLANT development
Subjects
Details
- Language :
- English
- ISSN :
- 01904167
- Volume :
- 32
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Journal of Plant Nutrition
- Publication Type :
- Academic Journal
- Accession number :
- 44120755
- Full Text :
- https://doi.org/10.1080/01904160903150917