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Effect of a High Nodulating Selection of Chickpea Cultlvar ICC 4948 on 5011 Properties of a Chlckpea- Sorghum Cropping System Yield and

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Title Effect of a High Nodulating Selection of Chickpea Cultlvar ICC 4948 on
5011 Properties of a Chlckpea- Sorghum Cropping System
Yield and
 
Creator Rupela, O P
Wani, S P
Danso, S K A
Johansen, C
 
Subject Chickpea
Sorghum
 
Description Plants of widely different nodulation capacities occurring in a chickpea variety ICC 4948
(=0 130) and lat-er developed into separate lines were compared in ch ickpcap$orghum field.
a
experiment. The high nodul,'ing (liN) chickpca scl.clion produced only marginally h i g her'
grai n yield (3.3·6.9%, mean or the two N levels) than th.'lt of the unselected normal variety and the:
low nodulating (LN) sd�ction. Out t h e liN selection fixed signiricanUy more atmospheric nitrogen
at low soil N (as measured by acetylene reduction a\.:tivity). and also liupported increased microbial
plots
activity in the rhizosphcre. Also. at low soil mineral N I.::vel. the microbial (lush C:N ratio in the
of the
of the liN selection was narrower (16.0) than that in plols LN (24.4) nnd nonnodulating
(20.4) selections. (ncreased microbial activity. along with a narrower flush C:N ratio in the case.
of HN seh:clions compared with the LN selection, lead to nil increased availability of N for
the following sorghum crop. This resulted in an extra uptake of 20 kg N ha·1 by chickpea and!
sorghum together. These studies indicated the benefits of liN selections of chickpea under low soil
N and inigated conditions for increased N yield and incrensed microbial activity in a chickpea�sorghum
cropping syslem These results are for I year only and suggesl tile need 10 s lu dy the cumul.tive crre�
.
of the high BNF lines on crop productivity over lime in a cropping systems perspective:
 
Publisher Indian Society of Soil Biology and Ecology
 
Date 1995
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4630/1/J_Soil_Bioi_Ecol_15_2_127-134_1995.pdf
Rupela, O P and Wani, S P and Danso, S K A and Johansen, C (1995) Effect of a High Nodulating Selection of Chickpea Cultlvar ICC 4948 on 5011 Properties of a Chlckpea- Sorghum Cropping System Yield and. Journal of soil biology & ecology., 15 (2). pp. 127-134. ISSN 0970-1370