@article{
 title = {Seed survival and patterns of seedling emergence studies of Rottboellia cochinchinensis (Lour.) W.D. Clayton in cultivated soils},
 type = {article},
 year = {1991},
 identifiers = {[object Object]},
 keywords = {Recursos adicionales,Rottboellia cochinchinensis},
 pages = {265-272},
 volume = {31},
 websites = {http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.1991.tb01766.x/abstract},
 month = {5},
 day = {19},
 id = {630fa5f0-3b0e-36cd-9212-220186b83efe},
 created = {2015-02-02T14:52:40.000Z},
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 profile_id = {ac4672dc-fcee-3694-89ac-749ebf81d505},
 group_id = {886a50df-fbf3-30e6-9d6b-6771e376eacf},
 last_modified = {2015-02-23T18:16:01.000Z},
 read = {false},
 starred = {false},
 authored = {false},
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 source_type = {JOUR},
 language = {en},
 abstract = {The longevity of buried Rottboellia cochinchinensis (Lour.) W.D. Clayton seed represents a major survival mechanism for the weed, enabling the persistence of a continuing source of weed seeds in crop land. The pattern of seed persistence and depletion of R. cochinchinensis in cultivated maize soils was investigated by means of (1) studies on the effect of depth and duration of burial on the viability of the weed seeds, (2) quantitative estimation of the seed population and viability in cultivated fields, and (3) the periodicity of emergence and effects of cultivation on seed germination both in the field and in the greenhouse. The results indicated that the mode of persistence was innate (8.5%) and enforced (35%) dormancy after 1 year of burial, and that the persistency component of the seed population on cultivated soils ranged from 40.60%. The weed was able to remain viable at depths of 45 cm, indicating an excellent mechanism of escaping the effects of most soil-applied herbicides, and it was shown that tillage increases the depletion rate of the weed seed reserve by 32% per year.},
 bibtype = {article},
 author = {Bridgemohan, P and Brathwaite, R.a.i. and Mcdavid, C R},
 journal = {Weed Research},
 number = {5}
}

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The pattern of seed persistence and depletion of R. cochinchinensis in cultivated maize soils was investigated by means of (1) studies on the effect of depth and duration of burial on the viability of the weed seeds, (2) quantitative estimation of the seed population and viability in cultivated fields, and (3) the periodicity of emergence and effects of cultivation on seed germination both in the field and in the greenhouse. The results indicated that the mode of persistence was innate (8.5%) and enforced (35%) dormancy after 1 year of burial, and that the persistency component of the seed population on cultivated soils ranged from 40.60%. 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