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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Morpho-Anatomical Changes in Roots of Chickpea (Cicer arietinum L.) under Drought Stress Condition
Author(s)
Nayab Saeed1, Nazimah Maqbool1, Muhammad Haseeb2 and Rumana Sadiq3
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DOI:10.17265/2161-6264/2016.01.001
Affiliation(s)
1. Department of Botany, University of Agriculture, Faisalabad 38040, Pakistan
2. Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
3. Department of Botany, Government College Women University, Faisalabad 38040, Pakistan
ABSTRACT
Chickpea (Cicer arietinum L.) is a crop cultivated
in semi-arid and rainfed areas of Pakistan and it experiences terminal drought stress. In this paper, the morpho-anatomical study regarding roots of chickpea was carried out to
investigate the drought adaptation strategies. Twelve cultivars of chickpea
were grown in pots under drought stress of 70% and 35% field capacity in addition to control (100%). Root
segments of mature chickpea plants were sectioned in 2 cm from root-shoot junction and used for
making transverse sections. The development of sleeve and stele tissues and
their proportion were markedly influenced
by moisture availability to the root system. Roots length, fresh and dry weight, and number of
secondary roots were decreased under field capacity of 70% and 35% as compared
to control in 12 cultivars of
chickpea. Root epidermis and cortex of CH47/04 consisted of cells with thickened walls and with 2-3 cell layers of sclerenchymatous cells
below the epidermis. Increased number of medullary
rays and high vascular region was observed in cultivars CH120/04, CH47/04,
CH587/05 and CH87/02. Anatomical studies showed that CH47/04 was highly
tolerant among 12 cultivars of
chickpea, while CH587/05 and CH87/02 behaved
moderately under both levels of drought stress (70% and 35% field capacity).
KEYWORDS
Chickpea, field capacity, sleeve, vascular region, cultivars.
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