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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
21/09/2018 |
Data da última atualização: |
03/01/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
DINATO, N. B.; LEONARDCZ, E.; BURSON, B. L.; QUARÍN, C. L.; PAULA, A. F. de; FAVERO, A. P. |
Afiliação: |
Naiana Barbosa Dinato, UFSCAR; Eduardo Leonardecz, UFSCAR; Byron L. Burson, USDA-ARS; Camilo L. Quarín, IBONE; Ailton Ferreira de Paula, UFSCAR; ALESSANDRA PEREIRA FAVERO, CPPSE. |
Título: |
Storage of Bahiagrass Pollen at Different Temperatures. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Crop Science, v. 58, p. 1-8, 2018. |
DOI: |
10.2135/cropsci2018.03.0164 |
Idioma: |
Inglês |
Conteúdo: |
Paspalum is an important genus of grasses, and some species are used for forage in the warmer regions of the world. Efforts to develop improved cultivars often require intra- and interspecific hybridization, but asynchronous flowering sometimes prevents hybridization between parental species. One method of circumventing this problem is to store pollen using cryopreservation so pollen will be available to pollinate the female parent when it flowers. Bahiagrass (Paspalum notatum Flügge) was used to determine if Paspalum pollen can be preserved using long-term cold storage. Pollen was dehydrated with LiCl, MgCl2, NaOH, and silica gel for 30, 60, and 120 min. Both dehydrated and nondehydrated pollen were stored at 4, -20, and 196°C for 10, 60, 120, and 180 d. After thawing, pollen stainability and in vivo germination were used to assess viability. Stainability of fresh pollen was 73.3%, and for treated and stored pollen, it ranged from 25.3 to 71.3%. Storage at -20 and -196°C was superior to storage at 4°C. Pollen dehydrated with LiCl for 30 min stored best at -196°C; pollen dehydrated for 120 min with silica gel and for 30 and 60 min with MgCl2 stored best at -20°C. All samples regardless of treatment, storage temperature, or length of storage had viable pollen. These findings demonstrate that bahiagrass pollen can be stored in longterm cold conditions, and this procedure can be used to circumvent problems associated with asynchronous flowering between parental species used in wide hybridization programs MenosPaspalum is an important genus of grasses, and some species are used for forage in the warmer regions of the world. Efforts to develop improved cultivars often require intra- and interspecific hybridization, but asynchronous flowering sometimes prevents hybridization between parental species. One method of circumventing this problem is to store pollen using cryopreservation so pollen will be available to pollinate the female parent when it flowers. Bahiagrass (Paspalum notatum Flügge) was used to determine if Paspalum pollen can be preserved using long-term cold storage. Pollen was dehydrated with LiCl, MgCl2, NaOH, and silica gel for 30, 60, and 120 min. Both dehydrated and nondehydrated pollen were stored at 4, -20, and 196°C for 10, 60, 120, and 180 d. After thawing, pollen stainability and in vivo germination were used to assess viability. Stainability of fresh pollen was 73.3%, and for treated and stored pollen, it ranged from 25.3 to 71.3%. Storage at -20 and -196°C was superior to storage at 4°C. Pollen dehydrated with LiCl for 30 min stored best at -196°C; pollen dehydrated for 120 min with silica gel and for 30 and 60 min with MgCl2 stored best at -20°C. All samples regardless of treatment, storage temperature, or length of storage had viable pollen. These findings demonstrate that bahiagrass pollen can be stored in longterm cold conditions, and this procedure can be used to circumvent problems associated with asynchronous flowering between parental species used in ... Mostrar Tudo |
Thesagro: |
Criopreservação; Gramínea; Pólen. |
Thesaurus Nal: |
Forage grasses; Paspalum. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02209naa a2200253 a 4500 001 2096131 005 2019-01-03 008 2018 bl uuuu u00u1 u #d 024 7 $a10.2135/cropsci2018.03.0164$2DOI 100 1 $aDINATO, N. B. 245 $aStorage of Bahiagrass Pollen at Different Temperatures.$h[electronic resource] 260 $c2018 520 $aPaspalum is an important genus of grasses, and some species are used for forage in the warmer regions of the world. Efforts to develop improved cultivars often require intra- and interspecific hybridization, but asynchronous flowering sometimes prevents hybridization between parental species. One method of circumventing this problem is to store pollen using cryopreservation so pollen will be available to pollinate the female parent when it flowers. Bahiagrass (Paspalum notatum Flügge) was used to determine if Paspalum pollen can be preserved using long-term cold storage. Pollen was dehydrated with LiCl, MgCl2, NaOH, and silica gel for 30, 60, and 120 min. Both dehydrated and nondehydrated pollen were stored at 4, -20, and 196°C for 10, 60, 120, and 180 d. After thawing, pollen stainability and in vivo germination were used to assess viability. Stainability of fresh pollen was 73.3%, and for treated and stored pollen, it ranged from 25.3 to 71.3%. Storage at -20 and -196°C was superior to storage at 4°C. Pollen dehydrated with LiCl for 30 min stored best at -196°C; pollen dehydrated for 120 min with silica gel and for 30 and 60 min with MgCl2 stored best at -20°C. All samples regardless of treatment, storage temperature, or length of storage had viable pollen. These findings demonstrate that bahiagrass pollen can be stored in longterm cold conditions, and this procedure can be used to circumvent problems associated with asynchronous flowering between parental species used in wide hybridization programs 650 $aForage grasses 650 $aPaspalum 650 $aCriopreservação 650 $aGramínea 650 $aPólen 700 1 $aLEONARDCZ, E. 700 1 $aBURSON, B. L. 700 1 $aQUARÍN, C. L. 700 1 $aPAULA, A. F. de 700 1 $aFAVERO, A. P. 773 $tCrop Science$gv. 58, p. 1-8, 2018.
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Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
29/01/2019 |
Data da última atualização: |
16/11/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
ANDRADE, C. M. S. de; FERREIRA, A. S.; ASSIS, G. M. L. de. |
Afiliação: |
CARLOS MAURICIO SOARES DE ANDRADE, CPAF-AC; Aliedson Sampaio Ferreira; GISELLE MARIANO LESSA DE ASSIS, CPAF-AC. |
Título: |
Screening forage peanut genotypes for competitive ability and spreading ability during establishment in mixed pastures. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Gioânia: SBZ: ABZ, 2018. |
Páginas: |
1 p. |
Idioma: |
Inglês |
Conteúdo: |
Forage peanut (Arachis pintoi) is a creeping, stoloniferous and perennial tropical legume with good compatibility mainly with short grasses. However, the mechanisms that are responsible for this compatibility are poorly understood. The present study screened 12 forage peanut genotypes for competitive ability and spreading ability during the establishment of a mixed sward with Brachiaria humidicola cv. Tully. |
Palavras-Chave: |
Amendoim forrageiro; Análisis de varianza; Brachiaria humidiola cv Tully; Cacahuetes forrajeros; Competición vegetal; Forage peanut; Leguminosas forrajeras; Pastoreo mixto; Pastos forrajeros. |
Thesagro: |
Brachiaria Humidicola; Competição de Variedade; Gramínea Forrageira; Leguminosa Forrageira; Método Estatístico; Pastagem Mista; Seleção Genótipa. |
Thesaurus NAL: |
Analysis of variance; Forage grasses; Forage legumes; Genotype; Mixed grazing; Plant competition; Urochloa humidicola. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/191470/1/26771.pdf
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Marc: |
LEADER 01887nam a2200421 a 4500 001 2104973 005 2023-11-16 008 2018 bl uuuu u00u1 u #d 100 1 $aANDRADE, C. M. S. de 245 $aScreening forage peanut genotypes for competitive ability and spreading ability during establishment in mixed pastures.$h[electronic resource] 260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 55.; CONGRESSO BRASILEIRO DE ZOOTECNIA, 28., 2018, Goiânia. Construindo saberes, formando pessoas e transformando a produção animal: anais. Gioânia: SBZ: ABZ$c2018 300 $a1 p. 520 $aForage peanut (Arachis pintoi) is a creeping, stoloniferous and perennial tropical legume with good compatibility mainly with short grasses. However, the mechanisms that are responsible for this compatibility are poorly understood. The present study screened 12 forage peanut genotypes for competitive ability and spreading ability during the establishment of a mixed sward with Brachiaria humidicola cv. Tully. 650 $aAnalysis of variance 650 $aForage grasses 650 $aForage legumes 650 $aGenotype 650 $aMixed grazing 650 $aPlant competition 650 $aUrochloa humidicola 650 $aBrachiaria Humidicola 650 $aCompetição de Variedade 650 $aGramínea Forrageira 650 $aLeguminosa Forrageira 650 $aMétodo Estatístico 650 $aPastagem Mista 650 $aSeleção Genótipa 653 $aAmendoim forrageiro 653 $aAnálisis de varianza 653 $aBrachiaria humidiola cv Tully 653 $aCacahuetes forrajeros 653 $aCompetición vegetal 653 $aForage peanut 653 $aLeguminosas forrajeras 653 $aPastoreo mixto 653 $aPastos forrajeros 700 1 $aFERREIRA, A. S. 700 1 $aASSIS, G. M. L. de
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