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Synthesis and Quantitative Structure-Activity Relationships of Oxanilates as Chemical Hybridizing Agents for Wheat (Triticum aestivum L.)‡

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Relation http://eprints.cmfri.org.in/9959/
 
Title Synthesis and Quantitative Structure-Activity Relationships of
Oxanilates as Chemical Hybridizing Agents for Wheat (Triticum
aestivum L.)‡
 
Creator Chakraborty, Kajal
Devakumar, C
Tomar, Shiv M S
Kumar, Rajendra
 
Subject Bioactive compound
 
Description Chemical hybridizing agents (CHAs) can facilitate two-line breeding in heterosis programs of crops.
Twenty-seven oxanilates having different aromatic substitutions were synthesized and screened as
CHAs on two genotypes of wheat, PBW 343 and HD 2733, during two Rabi(winter) seasons, 2000-
01 and 2001-02. The oxanilates prepared by thermal condensation of anilines with diethyl oxalate
or by acylation with ethoxycarbonyl methanoyl chloride were sprayed at 1000 and 1500 ppm at the
premeiotic stage of wheat, when the length of the emerging spike of the first node was 7-8 mm.
Pollen sterility and spikelet sterility were measured in each treatment. Ethyl oxanilates 5, 6, and 25,
containing 4-F, 4-Br, and 4-CF3 aromatic substituents, respectively, induced greater than 98% spikelet
sterility, the desired level, at 1500 ppm. Quantitative structure-activity relationship analysis revealed
a direct relationship between Fp and molecular mass but an inverse relationship between MR, ES,
and R in influencing the bioactivity. Several F1 hybrids were developed using 5, and at least one
showed heterosis.
 
Publisher American Chemical Society
 
Date 2003
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/9959/1/14.pdf
Chakraborty, Kajal and Devakumar, C and Tomar, Shiv M S and Kumar, Rajendra (2003) Synthesis and Quantitative Structure-Activity Relationships of Oxanilates as Chemical Hybridizing Agents for Wheat (Triticum aestivum L.)‡. Journal of Agricultural and Food Chemistry, 51. pp. 992-998.