Field Performance of Bt Cotton Produced from Hybrids with Single and Stacked Bt Traits
September 12, 2012| |
Scientists from the Indian Agricultural Research Institute conducted a study to assess the performance of first and second filial (F1 and F2) generations of crossing MRC7017Bt, a biotech cotton hybrid with stacked Bt traits (Cry1Ac and Cry2Ab) and JKCH1947Bt, a biotech cotton with single Bt trait (Cry1Ac).
The research team reported that least damage of the terminal bud, fruiting bodies green boll, open boll and incidence of spotted and pink bollworms was found on MRC 7017Bt F1, JKCH 1947Bt F1 and MRC7017Bt F2 as against MRC7017 non-Bt, JKCH1947 non-Bt and JKCH1947Bt F2. Highest yield of 27q/ha was exhibited by MRC7017Bt F1, followed by JKCH1947Bt, MRC7017Bt F2, JKCH1947Bt F2, JKCH non-Bt and MRC non-Bt 7017. Based on the results, MRC7017Bt F1 was the most superior in all the hybrids tested, while JKCH 1947BtF1 was comparable with MRC7071BtF2 in terms of yield, exceeding the yields of the non-Bt counterparts.
Download a copy of the research article at http://www.icac.org/meetings/wcrc/wcrc5/Proceeding_PDF/165.pdf.pdf.
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