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Study of the Root System of Local and Improved Sorghum Cultivars Grown in Mali

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Relation http://oar.icrisat.org/11069/
10.9734/AJAAR/2018/42846
 
Title Study of the Root System of Local and Improved Sorghum Cultivars Grown in Mali
 
Creator Toure, C F B
Diallo, A G
Toure, A O
Toure, A
 
Subject Crop Improvement
Sorghum
Mali
 
Description Roots play a fundamental role in plant growth by supplying water and mineral to the stem and
leaves. These underground organs are much less known than the aerial organs mainly due to the
difficult access to the root systems in soil. In spite of this, only a few studies were conducted on
roots. Given the importance of roots for plant growth, a better understanding of their functioning
may help solve some issues such as water stress that can affect the performance of the crops. A
total of 100 sorghum cultivars collected in the Sahelian zone of Mali an area receiving an annual
rainfall of 200 to 600 mm, were used in a root characterization study. The plant materials were
composed of 4 races and 5 intermediates sorghum races. Seeds of the entries were planted
directly in PVC tubes of 1m containing soil and arranged in completely randomized design with
three replications; in one planting date. Each tube was planted in a dugout ground to 50 cm deep.
The tubes were distant of 0.50 m within each row and 0.75 m between rows. The trial was watered
from the tap every two days until harvest. The results showed high variability among the varieties
studied for root length and root density, with a root length reaching over 1.00m. The study did not
identify any pattern in the root systems of the four races and their five intermediates races.
However, there was a positive correlation between root length and density indicating an increase in
root length correspond to an increased root density. The diversity found in the root system could be
a basis for improving root architecture in breeding populations and the evaluation of the behaviour
of the sorghum varieties with different root systems in water stress conditions.
 
Date 2018-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/11069/1/Toure732018AJAAR42846.pdf
Toure, C F B and Diallo, A G and Toure, A O and Toure, A (2018) Study of the Root System of Local and Improved Sorghum Cultivars Grown in Mali. Asian Journal of Advances in Agricultural Research, 7 (3). pp. 1-10. ISSN 2456-8864