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Cotton Genomics and Genetics
2013, Vol.4, No.1, 1-12
http://cgg.sophiapublisher.com
Research Report
Open Access
Identifying of Extra Long Staple Suitable Lines (
Gossypium barbadense
L) with
Improved Fiber Qualities to Release New Lines as an Alternative for Suvin
Variety of Barbadense
Yanal Alkuddsi , S.S. Patil , S. M. Manjula , B. C. Patil , H. L. Nadaf , B. S. Nandihali
Agricultural Research Station, Dharwad Farm, University of Agricultural Sciences, Dharwad, Karnataka, India, 580005
Corresponding author email:
y.alkuddsi@hotmail.com;
Authors
Cotton Genomics and Genetics, 2013, Vol.4, No.1 doi: 10.5376/cgg.2013.04.0001
Copyright
© 2013 Yanal Alkuddsi. 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.
Abstract
There is a steep rise in production of long staple cotton, while production of extra long staple, short staple and even
medium staple cotton has come down drastically. Because of this, India is importing extra long staple cotton by causing heavy birth
on exchequer and there is a need of improving performance of interspecific hybrids. This is possible through genetic improvement of
barbadense lines. The elite barbadense combiners namely DB 533 and DB 534 were indentified for creation and exploitation of
recombinational variability for combining ability. In 2007- 2008 this cross was made and early segregating generations were raised
during 2008- 2009/2009-2010, out of 171 F
3
lines 53 were identified based on productivity and fiber quality and advanced to
succeeding generations. The F
3
lines were evaluated for productivity and fiber quality parameters realizing the emphasis laid on
developing ELS (Extra Long Stable) cotton hybrids out of 171 F
3
lines, only 53 F
3
lines with acceptable fiber strength were utilized
in this study. The barbadense population of F
4
lines was selfed and material was advanced to F
5
generation during the same year. This
study also focused attention on determining whether these barbadense lines can straight away be utilized as varieties for producing
ELS cottons. Hence, 53 F
5
barbadense lines were evaluated for productivity traits and fiber quality traits and compared with Suvin
known to be standard barbadense variety in international market. The potential barbadense line DB 533
×
DB 534 F5 IPS 18 showed
superiority over Suvin line for seed cotton yield, mean boll weight, seed index, ginning outturn, lint index, fiber micronaire value,
fiber strength and S/L ratio and can be used for developing separate trait based populations with other barbadense lines for yield
components and fiber quality. Confirmation of their superiority will enable release of these new lines as an alternative for Suvin
variety of barbadense.
Keywords
Gossypium barbadense
lines; Suvin; Fiber quality
Introduction
Cotton is still a principal raw material for the world's
textile industry, but its dominant position has been
seriously eroded by synthetic fibers. Increased global
production, emergence of synthetics as an alternative
to cotton textiles and improved productivity are
mainly contributing for world supply. World demand
for cotton continued to be erratic, and some groups
lobbied for increased price- supports, but an upward
trend began in the 1980s.
India was the first country to introduce commercial
cultivation of intra hirsutum hybrids in 1960s and then
interspecific hybrids in 1970s. The success of
Interspecific hybrids has led to overcome the acute
shortage of ELS (Extra long stable) cotton which the
country was experiencing during 1970s and the
prominent hybrids from University of Agricultural
Sciences, Dharwad namely Varalakshmi and DCH 32
were instrumental in saving very critical foreign
exchange running to hundreds of crores of rupees.
Later in 90s, due to increase of severity of pests and
the inherent susceptibility to them which was contributed
Cotton Genomics and Genetics
Preferred citation for this article:
Yanal Alkuddsi, 2013, Identifying of Extra Long Staple Suitable Lines (
Gossypium barbadense
L) with Improved Fiber Qualities to Release New Lines as
an Alternative for Suvin Variety of Barbadense, Cotton Genomics and Genetics,Vol.4, No.1 1-12 (doi: 10.5376/cgg.2013.04.0001)
Received: 29 Jun., 2013
|
Accepted: 11 Jul., 2013
|
Published: 04 Sep., 2013