Cotton Genomics and Genetics 2015, Vol.6, No.3, 1-5
1
Research Report Open Access
The Effect of Arbuscular Mycorrhiza Fungi on Cotton Growth and Yield Under Salinated
Soil Condition
Botir Khaitov , Shukhrat Teshaev
Faculty of Agronomy, Tashkent State Agrarian University, 100140, Tashkent, Uzbekistan
Cotton Selection, Seed Production and Agrotechnology Research Institute, 111218, Tashkent, Uzbekistan
Corresponding author email:
Cotton Genomics and Genetics, 2015, Vol.6, No.3 doi:
10.5376/cgg.2015.06.0003
Received: 21 Apr., 2015
Accepted: 08 Jun., 2015
Published: 15 Jun., 2015
Copyright
©
2015
Farooq et al., This is an open access article published under the terms of the Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article: Khaitov B. and Teshaev Sh., 2015, The Effect of Arbuscular Mycorrhiza Fungi on Cotton Growth and Yield Under Salinated
Soil Condition, Vol.6, No.3 1-7 (doi: 10.5376/cgg.2015.06.0003)
Abstract
The aim of this study was to investigate the response of two cotton AN-Bayaut-2 and S-6524 (
Gossipium hirsutum
L.)
varieties to Arbuscular Micorrhiza Fungi (AMF) inoculation under salinated soil condition. The inoculation significantly increased N,
P uptake and plant growth of both cotton varieties but micorrhization rate were considerable higher in AN-Bayaut-2 compare to
S-6524 variety, 36,7% and 19.1% respectively. Micorrhization rate of root had a significant impact on plant growth and development
during vegetation period. AMF formed a symbiotic relationship with cotton root in salinated soil enhanced a nutrient and water
uptake of plant and growth of the plant as well as cotton yield.
Keywords
Arbuscular Micorrhiza fungi (AMF); Cotton; Plant growth; Nutrient uptake
Background
Cotton is one of the major fibre crop of worldwide as
well in Uzbekistan. Although it is classified as salt
tolerant plant (Maas and Hoffman, 1977) but it is
sensitive in salination at germination stage (Ahmad et
al, 2002). Salinity induced phytotoxicity including
necrosis of apices and leaf margin, stunted growth,
and leaf chlorosis (Ahmad et al., 2002). Increasing
rate of saline water in agricultural fields leads to a
major threat to plant production and hence retards the
growth and development of plants (Shokri and Maadi,
2009) by affecting various metabolic processes.
Soil salinity is becoming more serious problem each
passed year in agricultural production of Uzbekistan.
Moreover, drying up of Aral Sea is exacerbating
current already deteriorated soil as well ecological
condition. Although, cotton production significantly
decreased in during last decades, it is still counts as
the main crop covering 1.3 mln ha of arable field
almost same amount of area as wheat.
Plants grown in the field are surrounded by various
microorganisms such as bacteria and fungi that help
and improve the plant growth and yield under various
stress conditions (Egamberdieva et al., 2007). There
have been many reports describing potential benefit of
AMF on nutrient uptake of cotton in soil salinity
condition, thereby increasing growth and development
of cotton plant in harsh environmental condition
(Linderman, 1992; Egamberdieva et al., 2007).
However, not all plant species form AM associations,
and not all AM plant species show clear nutritional
benefits from colonization by mycorrhizal fungi under
all growth conditions (Connor et al., 2002). Since the
mycorrhizosphere is greatly influenced by the host
plant genotype (Linderman, 1992), to date there is no
any study describing AMF symbioses with new cotton
varieties grown in harsh soil salinated condition of
Uzbekistan. The objectives of our research were to
study the response of two different cotton varieties
(
Gossipium hirsutum
L.) grown on salinated serozem
soil with treatment AMF under arid climatic
conditions.
Material and methods
The field experiment was established in three
replications on salinated serozem soil of Oq Oltin
district Sirdarya region. Electrical conductivity (EC)
values of saline soil were 6.2 dS/m. According to the
FAO classification, the soils are calcareous calcisol
with low nutrient contents. Cotton seed
Gossipium
hirsutum
L. variety AN-Bayaut-2 and S-6524 were
obtained from Seed laboratory of Tashkent State
Agrarian University.
