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Rooting behaviour of chickpea (Cicer arietinum) as affected by soil compaction levels in Vertisol of central India

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Title Rooting behaviour of chickpea (Cicer arietinum) as affected by soil compaction levels in Vertisol of central India
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Creator K Choudhary, M Mohanty, Nishant K Sinha, A Rawat, KM Hati, RITESH SAHA, J Somasundaram, RS Chaudhary
 
Subject Bulk density, Compaction, Chickpea, Root, Root morphology
 
Description Not Available
Soil compaction may restrict deep root growth and adversely affect plant access to sub-soil layer. Therefore it is
important to study rooting behaviour of crops to soil compaction that are imparted on it naturally or artificially. The
objective of this study was to determine the effect of soil compaction levels by varying the soil bulk density (BD) on
rooting parameters and to model the root growth to understand the dynamics of rooting behaviour of chickpea (Cicer
arietinum L.). Compaction level treatments, i.e. BDs were (i) 1.2, (ii) 1.4, (iii) 1.5 and (iv) 1.6 Mg/m3.When BD was
increased from 1.2 Mg/m3 to 1.6 Mg/m3, there was 58% and 44% reduction in plant height of JG 11 and JG 130,
respectively. There was 59% and 45% reduction in root length of JG 11 and JG 130, with increase in BD from 1.2 Mg/
m3 to 1.6 Mg/m3. On an average, an increase in BD by 0.1 unit resulted in 19.34 and 19.11% decrease in root main
axis length of JG 11 and JG 130, respectively. There was a negative correlation between root penetration rate and soil
BD (R2 = 0.88). The critical growth limiting BD for chickpea was found to be 1.89 Mg/m3 in our study. The logistic
growth model was fitted well with the observed dataset obtained from study with R2 of 0.98 * * (P < 0.01). In this
study, the chickpea variety JG 130 proved to be better than JG 11 while selecting chickpea cultivars for highly
compacted soils.Not Available
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Date 2021-07-28T06:32:11Z
2021-07-28T06:32:11Z
2015-08-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/50585
 
Language English
 
Relation Not Available;
 
Publisher Indian Journal of Agricultural Sciences