RESPONSE OF MICROPROPAGATED SUGARCANE VARIETIES TO INOCULATION WITH ENDOPHYTIC DIAZOTROPHIC BACTERIA

被引：27
|
作者：
Martinez de Oliveira, Andre Luiz [1 ]
Canuto, Erineudo de Lima
Reis, Veronica Massena [2 ]
Baldani, Jose Ivo [2 ]
机构：
[1] Univ Fed Rural Rio de Janeiro, Inst Agron, Curso Posgrad Agron, BR-23890000 Seropedica, RJ, Brazil
[2] Embrapa Agrobiol, Seropedica, RJ, Brazil
来源：
BRAZILIAN JOURNAL OF MICROBIOLOGY | 2003年 / 34卷
关键词：
endophytic bacteria inoculation; biological nitrogen fixation; plant growth promotion bacteria; sugarcane;
D O I：
10.1590/S1517-83822003000500020
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
Previous studies estimated that sugarcane could obtain up to 60% of total nitrogen accumulated from BNF. Here a mixture of five endophytic diazotrophic strains was tested in a field trial, inoculated in two micropropagated sugarcane varieties and three locals, to determine the effects on commercial crop conditions. The sugarcane plantlets were inoculated in vitro, and after 17 months of growing in the field, the productivity and BNF contribution showed to be influenced by the plant genotype and soil type. The highest BNF contributions was observed in the poorest soil for both varieties. Smaller increases in productivity were observed for SP 701143 variety grown in soil with low or medium fertility. In contrast, a decrease in the stem productivity was observed in the SP 813250 variety grown in the three localities.
引用
收藏
页码：59 / 61
页数：3
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