Study on the Source-sink Relationship and Effects of Manipulation of Bt Transgenic Cotton

doi:10.3321/j.issn:1000-7091.2003.02.001

Abstract

Abstract: Bt transgenic cotton Jinmian 31 was used to study the effects of source-sink activity and accumulation and distributation of assimilates of Bt cotton under different constitute of density and fertilizer and DPC for chemicaLcontroL.The resulted showed that the excellent constitute of three factors could construct superior balance of source-sink of Bt cotton.The speed of assilation accumulation was accelerated during the whole time when the ISS in these balance.The output rate of assilation after flowering for sink was enhanced and the weight of bolLwas increased.The leaf-source physiology activity was improved.At the end, the paper pointed out the key for Bt cotton culture was constructed the excellent balance of source-sink.

Key words: Bt transgenic cotton, Source-sink relation, Excellent Balance

CLC Number:

S562.035.3

ZHAO Hai-zhen, LIANG Zhe-jun, QI Hong-li, WANG Yu-xiang, NIE An-quan, FAN Zhi-jie. Study on the Source-sink Relationship and Effects of Manipulation of Bt Transgenic Cotton[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2003, 18(2): 1-4. doi: 10.3321/j.issn:1000-7091.2003.02.001.

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