improvement of a popcorn population using selection indexes from a fourth cycle of recurrent selection program carried out in two different environments.we estimated genetic gains for popcorn varieties using selection indexes in a fourth cycle of intrapopulation recurrent selection developed in the campus of the universidade estadual do norte fluminense. two hundred full-sib families were obtained from the popcorn population unb-2u of the third recurrent selection cycle. the progenies were evaluated in a randomized block design with two replications at sites in two different environments: the colégio estadual agrícola antônio sarlo, in campos do ...201020309820
burkholderia silvatlantica sp. nov., a diazotrophic bacterium associated with sugar cane and a previous study, nitrogen-fixing isolates were recovered from the rhizosphere of maize and from surface-sterilized leaves of sugar cane cultivated in rio de janeiro, brazil. on the basis of 16s rrna gene sequence similarities, these isolates were identified as belonging to the genus burkholderia, and whole-cell-protein profiles demonstrated that they are closely related to each other. in the present study, novel isolates were recovered from the roots of different sugar-cane varieties cultiva ...200616902033
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