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Productivity and nitrogen-use efficiency yardsticks in conventional and Bt cotton hybrids on rainfed Vertisols

Indian Agricultural Research Journals

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Title Productivity and nitrogen-use efficiency yardsticks in conventional and Bt cotton hybrids on rainfed Vertisols
 
Creator Venugopalan, M V
Deshmukh, Rachana
Hebbar, K B
Tandulkar, N R
 
Subject N-uptake efficiency
N utilization efficiency
Bt cotton
Sowing time
 
Description The yield of Bt hybrids (MCEH 184 and RCH 2) was higher than non-Bt NCS 145 and among Bt hybrids, the medium duration RCH 32 Bt was superior to short-duration MECH 184 under normal sowing date. Under late sown conditions, the performance of both RCH 2 Bt and NCS-145 were similar and Bt hybrids are not likely to be more advantageous late sown conditions where a decline in temperature induces cut out. N UtiE and not N Upt E was primarily responsible for a higher NUE in Bt hybrids RCH 2 and MECH 184 than the non-Bt hybrid NCS-145. A higher HI enabled Bt hybrids to utilize N more efficiently.
 
Publisher Indian Council of Agricultural Research
 
Date 2012-07-11
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJAgS/article/view/21694
10.56093/ijas.v82i7.21694
 
Source The Indian Journal of Agricultural Sciences; Vol. 82 No. 7 (2012); 641–4
2394-3319
0019-5022
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJAgS/article/view/21694/10853
 
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