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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
04/07/2014 |
Data da última atualização: |
25/05/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CRUZ, J. L.; SOUZA, L. da S.; SOUZA, N. C. dos S. de; PELACANI, C. R. |
Afiliação: |
JAILSON LOPES CRUZ, CNPMF; LUCIANO DA SILVA SOUZA, UFRB; NAIARA CÉLIDA DOS SANTOS DE SOUZA, USP; CLAUDINÉIA REGINA PELACANI, UEFS. |
Título: |
Effect of cover crops on the aggregation of a soil cultivated with papaya (Carica papaya L.). |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Scientia Horticulturae, v.172, p.82-85, 2014. |
Idioma: |
Inglês |
Conteúdo: |
This study examined the influence of eight types of cover crops, including a treatment with the interrows cleaned all time, on the weighted average diameter of soil aggregates (WAD), mass of soil aggregates, and crop yield of an intensively managed papaya orchards. It was observed that the lowest value for WAD was obtained in the samples from the cleaned interrows. The cover crops with calopo, sunn hemp, sorghum, pigeon pea and jack bean in association with sorghum had values of mass for soil aggregates with diameter between 7.93 and 2.00 mm greater than in soil where the plant cover was totally removed. There was a positive and significant correlation between the mass of larger diameter soil aggregates and WAD. The results clearly indicate that the addition of organic matter promoted by the cover crops supported the formation of aggregates with larger diameters and helped to improve the fruit yield of papaya, making them an important practice for sustainable agroecosystems. |
Thesagro: |
Carica papaya. |
Thesaurus Nal: |
Cover crops. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01533naa a2200181 a 4500 001 1989821 005 2023-05-25 008 2014 bl uuuu u00u1 u #d 100 1 $aCRUZ, J. L. 245 $aEffect of cover crops on the aggregation of a soil cultivated with papaya (Carica papaya L.).$h[electronic resource] 260 $c2014 520 $aThis study examined the influence of eight types of cover crops, including a treatment with the interrows cleaned all time, on the weighted average diameter of soil aggregates (WAD), mass of soil aggregates, and crop yield of an intensively managed papaya orchards. It was observed that the lowest value for WAD was obtained in the samples from the cleaned interrows. The cover crops with calopo, sunn hemp, sorghum, pigeon pea and jack bean in association with sorghum had values of mass for soil aggregates with diameter between 7.93 and 2.00 mm greater than in soil where the plant cover was totally removed. There was a positive and significant correlation between the mass of larger diameter soil aggregates and WAD. The results clearly indicate that the addition of organic matter promoted by the cover crops supported the formation of aggregates with larger diameters and helped to improve the fruit yield of papaya, making them an important practice for sustainable agroecosystems. 650 $aCover crops 650 $aCarica papaya 700 1 $aSOUZA, L. da S. 700 1 $aSOUZA, N. C. dos S. de 700 1 $aPELACANI, C. R. 773 $tScientia Horticulturae$gv.172, p.82-85, 2014.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
23/02/2023 |
Data da última atualização: |
14/07/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 3 |
Autoria: |
BUENO, F. G. B.; SANTOS, C. F dos; OTESBELGUE, A.; MENEZES, C.; VEEN, J. W. van; BLOCHTEIN, B.; GLOAG, R.; HEARD, T.; IMPERATRIZ-FONSECA, V. L.; ALVES, D. A. |
Afiliação: |
FRANCISCO GARCIA BULLE BUENO, UNIVERSITY OF SYDNEY; CHARLES FERNANDO DOS SANTOS, PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO GRANDE DO SUL; ALEX OTESBELGUE, PONTIFICIA UNIVERSIDADE CATOLICA DO RIO GRANDE DO SUL; CRISTIANO MENEZES, CNPMA; JOHAN WILHELM VAN VEEN, UNIVERSIDAD NACIONAL DE COSTA RICA; BETINA BLOCHTEIN, PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO GRANDE DO SUL; ROSALYN GLOAG, UNIVERSITY OF SYDNEY; TIM HEARD, UNIVERSITY OF SYDNEY; VERA LUCIA IMPERATRIZ-FONSECA, UNIVERSIDADE DE SÃO PAULO; DENISE ARAUJO ALVES, UNIVERSIDADE DE SÃO PAULO. |
Título: |
The queens of the stingless bees: from egg to adult. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Insectes Sociaux, v. 70, n. 1, p. 43-57, 2023. |
ISSN: |
1420-9098 |
DOI: |
https://doi.org/10.1007/s00040-022-00894-0 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Queens play an essential role in the colonies of stingless bees. Typically, only one queen occurs in a colony at any time, and she dominates the egg laying. Their presence maintains colony cohesion and ensures the development and survivorship of these matriarchal societies. Yet there remain significant gaps in our knowledge of queen life cycles as compared to their daughters, the workers. In this review, we follow chronologically the life of queens from pre-emergence inside brood cells (caste determination), to their interaction with workers (queen selection) and males (sexual selection), and up to adulthood. Stingless bee queens can be determined either trophically or genetically. After emergence, the virgin queens undergo a selection process whereby many are executed by workers. The body size, pheromones, age and behaviour of virgin queens may play a role in queen selection. Queens then leave the nest on a nuptial flight during which they mate just once. After mating, queens are still susceptible to workers? harassment. For example, if they produce diploid males they are killed by workers. Previous studies have successfully in vitro reared and mated virgin queens under laboratory conditions, which have revealed new insights of queen development time, the threshold of minimum and maximum provided food to larvae developing into queens, and lethal and sublethal effects of agrochemical substances. These new techniques have also provided new information about queen physiology. However, the daily routine of queens inside colonies demands further well-designed experiments to capture other patterns of behaviour which remain poorly understood, including their interactions with other queens, workers and even males. MenosAbstract: Queens play an essential role in the colonies of stingless bees. Typically, only one queen occurs in a colony at any time, and she dominates the egg laying. Their presence maintains colony cohesion and ensures the development and survivorship of these matriarchal societies. Yet there remain significant gaps in our knowledge of queen life cycles as compared to their daughters, the workers. In this review, we follow chronologically the life of queens from pre-emergence inside brood cells (caste determination), to their interaction with workers (queen selection) and males (sexual selection), and up to adulthood. Stingless bee queens can be determined either trophically or genetically. After emergence, the virgin queens undergo a selection process whereby many are executed by workers. The body size, pheromones, age and behaviour of virgin queens may play a role in queen selection. Queens then leave the nest on a nuptial flight during which they mate just once. After mating, queens are still susceptible to workers? harassment. For example, if they produce diploid males they are killed by workers. Previous studies have successfully in vitro reared and mated virgin queens under laboratory conditions, which have revealed new insights of queen development time, the threshold of minimum and maximum provided food to larvae developing into queens, and lethal and sublethal effects of agrochemical substances. These new techniques have also provided new information about queen ph... Mostrar Tudo |
Thesagro: |
Abelha; Abelha Brasileira; Abelha Rainha; Comportamento Animal. |
Thesaurus NAL: |
Insect behavior; Queen honey bees; Stingless bees. |
Categoria do assunto: |
O Insetos e Entomologia |
Marc: |
LEADER 02680naa a2200337 a 4500 001 2151877 005 2023-07-14 008 2023 bl uuuu u00u1 u #d 022 $a1420-9098 024 7 $ahttps://doi.org/10.1007/s00040-022-00894-0$2DOI 100 1 $aBUENO, F. G. B. 245 $aThe queens of the stingless bees$bfrom egg to adult.$h[electronic resource] 260 $c2023 520 $aAbstract: Queens play an essential role in the colonies of stingless bees. Typically, only one queen occurs in a colony at any time, and she dominates the egg laying. Their presence maintains colony cohesion and ensures the development and survivorship of these matriarchal societies. Yet there remain significant gaps in our knowledge of queen life cycles as compared to their daughters, the workers. In this review, we follow chronologically the life of queens from pre-emergence inside brood cells (caste determination), to their interaction with workers (queen selection) and males (sexual selection), and up to adulthood. Stingless bee queens can be determined either trophically or genetically. After emergence, the virgin queens undergo a selection process whereby many are executed by workers. The body size, pheromones, age and behaviour of virgin queens may play a role in queen selection. Queens then leave the nest on a nuptial flight during which they mate just once. After mating, queens are still susceptible to workers? harassment. For example, if they produce diploid males they are killed by workers. Previous studies have successfully in vitro reared and mated virgin queens under laboratory conditions, which have revealed new insights of queen development time, the threshold of minimum and maximum provided food to larvae developing into queens, and lethal and sublethal effects of agrochemical substances. These new techniques have also provided new information about queen physiology. However, the daily routine of queens inside colonies demands further well-designed experiments to capture other patterns of behaviour which remain poorly understood, including their interactions with other queens, workers and even males. 650 $aInsect behavior 650 $aQueen honey bees 650 $aStingless bees 650 $aAbelha 650 $aAbelha Brasileira 650 $aAbelha Rainha 650 $aComportamento Animal 700 1 $aSANTOS, C. F dos 700 1 $aOTESBELGUE, A. 700 1 $aMENEZES, C. 700 1 $aVEEN, J. W. van 700 1 $aBLOCHTEIN, B. 700 1 $aGLOAG, R. 700 1 $aHEARD, T. 700 1 $aIMPERATRIZ-FONSECA, V. L. 700 1 $aALVES, D. A. 773 $tInsectes Sociaux$gv. 70, n. 1, p. 43-57, 2023.
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