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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
19/12/2017 |
Data da última atualização: |
26/12/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
TALLEBOIS, J.; DOSMANN, J.; CRONEMBERGER, H.; PAREDES, H.; CAO, T. V.; NEVES, P.; AHMADI, N. |
Afiliação: |
JAMES TALLEBOIS, CIRAD; JOANNA DOSMANN, EL ACEITUNO, Colombia; HELMA CRONEMBERGER, UFG; HERMINIO PAREDES, UNIVERSIDADE DE PALMIRAS, Colombia; TUONG-VI CAO, CIRAD; PERICLES DE CARVALHO FERREIRA NEVES, CNPAF; NOUROLLAH AHMADI, CIRAD. |
Título: |
Breeding for outcrossing ability in rice, to enhance seed production for hybrid rice cropping. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Rice Research, v. 5, n. 3, 2017. |
ISSN: |
2375-4338 |
DOI: |
10.4172/2375-4338.1000184 |
Idioma: |
Inglês |
Conteúdo: |
Background: Adoption of the hybrid rice varieties by farmers is often impaired by the high price of hybrid seed, due to low yields in hybrid seed production fields. Female outcrossing ability (FOA) and female hybrid seed production ability (FHSPA), defined as the rate of filled spikelets of the male sterile (MS) line and as its grain yield under outcrossing, respectively, determine plant traits for hybrid seed yield. Breeding for FOA and FHSPA in rice has suffered from the lack of a high throughput phenotyping method and the inbred breeding approach used for the development of MS lines. We developed an innovative hybrid rice breeding strategy that uses the monogenic recessive male-sterility gene ms-IR36 for the reciprocal recurrent improvement of maintainer and restorer populations. Results: High throughput screening for FOA and FHSPA can be achieved by scoring the grain weight of MS plants and the grain yield of fertile plants of progenies extracted from breeding populations segregating for the ms-IR36 gene. Using this phenotyping method in seven field trials, each involving several hundred entries, we revealed a very broad diversity for FOA (ranging from zero to 89%) and FHSPA, within the F3 progenies of bi-parental crosses and within S1 and S2 progenies extracted from different breeding populations. The seven experiments produced convergent results and heritabilities of 0.59-0.90 for FHSPA and 0.45-0.72 for FOA. Correlations between FHSPA and FOA were tight and highly significant. Correlations were looser between FHSPA and grain yield of the selfed fertile sibling (GW-MF). Correlations between FOA and GW-MF were not significant. Tight significant correlation was also observed between FHSPA of S1 lines and S2 lines extracted from the former. Conclusion: Population breeding through recurrent selection, using the ms-IR36 gene as a tool for both recombination and seed production for testcrossing, is a favorable framework for harnessing rice genetic diversity for FHSPA. Rapid and cost-effective genetic gain for hybrid seed production can be achieved using results of the ms-IR36 gene mediated test cross seed production process as FHSPA early screening. MenosBackground: Adoption of the hybrid rice varieties by farmers is often impaired by the high price of hybrid seed, due to low yields in hybrid seed production fields. Female outcrossing ability (FOA) and female hybrid seed production ability (FHSPA), defined as the rate of filled spikelets of the male sterile (MS) line and as its grain yield under outcrossing, respectively, determine plant traits for hybrid seed yield. Breeding for FOA and FHSPA in rice has suffered from the lack of a high throughput phenotyping method and the inbred breeding approach used for the development of MS lines. We developed an innovative hybrid rice breeding strategy that uses the monogenic recessive male-sterility gene ms-IR36 for the reciprocal recurrent improvement of maintainer and restorer populations. Results: High throughput screening for FOA and FHSPA can be achieved by scoring the grain weight of MS plants and the grain yield of fertile plants of progenies extracted from breeding populations segregating for the ms-IR36 gene. Using this phenotyping method in seven field trials, each involving several hundred entries, we revealed a very broad diversity for FOA (ranging from zero to 89%) and FHSPA, within the F3 progenies of bi-parental crosses and within S1 and S2 progenies extracted from different breeding populations. The seven experiments produced convergent results and heritabilities of 0.59-0.90 for FHSPA and 0.45-0.72 for FOA. Correlations between FHSPA and FOA were tight and highly sig... Mostrar Tudo |
Palavras-Chave: |
Hibrids; Hybrid variety. |
Thesagro: |
Arroz; Híbrido; Melhoramento genético vegetal; Oryza sativa; Produção de sementes. |
Thesaurus Nal: |
Cultivars; Outcrossing; Plant breeding; Rice; Seed productivity. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169282/1/CNPAF-2017-rr.pdf
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Marc: |
LEADER 03159naa a2200361 a 4500 001 2082916 005 2017-12-26 008 2017 bl uuuu u00u1 u #d 022 $a2375-4338 024 7 $a10.4172/2375-4338.1000184$2DOI 100 1 $aTALLEBOIS, J. 245 $aBreeding for outcrossing ability in rice, to enhance seed production for hybrid rice cropping.$h[electronic resource] 260 $c2017 520 $aBackground: Adoption of the hybrid rice varieties by farmers is often impaired by the high price of hybrid seed, due to low yields in hybrid seed production fields. Female outcrossing ability (FOA) and female hybrid seed production ability (FHSPA), defined as the rate of filled spikelets of the male sterile (MS) line and as its grain yield under outcrossing, respectively, determine plant traits for hybrid seed yield. Breeding for FOA and FHSPA in rice has suffered from the lack of a high throughput phenotyping method and the inbred breeding approach used for the development of MS lines. We developed an innovative hybrid rice breeding strategy that uses the monogenic recessive male-sterility gene ms-IR36 for the reciprocal recurrent improvement of maintainer and restorer populations. Results: High throughput screening for FOA and FHSPA can be achieved by scoring the grain weight of MS plants and the grain yield of fertile plants of progenies extracted from breeding populations segregating for the ms-IR36 gene. Using this phenotyping method in seven field trials, each involving several hundred entries, we revealed a very broad diversity for FOA (ranging from zero to 89%) and FHSPA, within the F3 progenies of bi-parental crosses and within S1 and S2 progenies extracted from different breeding populations. The seven experiments produced convergent results and heritabilities of 0.59-0.90 for FHSPA and 0.45-0.72 for FOA. Correlations between FHSPA and FOA were tight and highly significant. Correlations were looser between FHSPA and grain yield of the selfed fertile sibling (GW-MF). Correlations between FOA and GW-MF were not significant. Tight significant correlation was also observed between FHSPA of S1 lines and S2 lines extracted from the former. Conclusion: Population breeding through recurrent selection, using the ms-IR36 gene as a tool for both recombination and seed production for testcrossing, is a favorable framework for harnessing rice genetic diversity for FHSPA. Rapid and cost-effective genetic gain for hybrid seed production can be achieved using results of the ms-IR36 gene mediated test cross seed production process as FHSPA early screening. 650 $aCultivars 650 $aOutcrossing 650 $aPlant breeding 650 $aRice 650 $aSeed productivity 650 $aArroz 650 $aHíbrido 650 $aMelhoramento genético vegetal 650 $aOryza sativa 650 $aProdução de sementes 653 $aHibrids 653 $aHybrid variety 700 1 $aDOSMANN, J. 700 1 $aCRONEMBERGER, H. 700 1 $aPAREDES, H. 700 1 $aCAO, T. V. 700 1 $aNEVES, P. 700 1 $aAHMADI, N. 773 $tRice Research$gv. 5, n. 3, 2017.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca(s): |
Embrapa Territorial. |
Data corrente: |
31/08/2017 |
Data da última atualização: |
03/05/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
CASTRO, G. S. A.; CRUSCIOL, C. A. C.; ROSOLEM, C. A.; CALONEGO, J. C.; BRYE, K. R. |
Afiliação: |
GUSTAVO SPADOTTI AMARAL CASTRO, CNPM; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP; CIRO ANTONIO ROSOLEM, UNESP; JULIANO CARLOS CALONEGO, UNESP; K. R. BRYE, UNIVERSITY OF ARKANSAS. |
Título: |
Surface lime and silicate application and crop production system effects on physical characteristics of a Brazilian Oxisol. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Soil Research, v. 55, n. 5/6, jun. 2017. |
Páginas: |
p. B-J. |
Idioma: |
Português |
Conteúdo: |
This work aimed to evaluate the effects of crop rotations and soil acidity amelioration on soil physical properties of an Oxisol (Rhodic Ferralsol or Red Ferrosol in the Australian Soil Classification) from October 2006 to September 2011 in Botucatu, SP, Brazil. Treatments consisted of four soybean (Glycine max)?maize (Zea mays)?rice (Oryza sativa) rotations that differed in their off-season crop, either a signal grass (Urochloa ruziziensis) forage crop, a second crop, a cover crop, or fallow. Two acid-neutralising materials, dolomitic lime (effective calcium carbonate equivalent (ECCE) = 90%) and calcium-magnesium silicate (ECCE = 80%), were surface applied to raise the soil?s base saturation to 70%. Selected soil physical characteristics were evaluated at three depths (0?0.1, 0.1?0.2, and 0.2?0.4 m). In the top 0.1 m, soil bulk density was lowest (P < 0.05) and macroporosity and aggregate stability index were greatest (P < 0.05) in the forage crop compared with all other production systems. Also, bulk density was lower (P < 0.05) and macroporosity was greater (P < 0.05) in the acid-neutralising-amended than the unamended control soil. In the 0.1?0.2-m interval, mean weight diameter and mean geometric diameter were greater (P < 0.05) in the forage crop compared with all other production systems. All soil properties evaluated in this study in the 0.2?0.4-m interval were unaffected by production system or soil amendment after five complete cropping cycles. Results of this study demonstrated that certain soil physical properties can be improved in a no-tillage soybean?maize?rice rotation using a forage crop in the off-season and with the addition of acid-neutralising soil amendments. Any soil and crop management practices that improve soil physical properties will likely contribute to sustaining long-term soil and crop productivity in areas with highly weathered, organic matter-depleted, acidic Oxisols. MenosThis work aimed to evaluate the effects of crop rotations and soil acidity amelioration on soil physical properties of an Oxisol (Rhodic Ferralsol or Red Ferrosol in the Australian Soil Classification) from October 2006 to September 2011 in Botucatu, SP, Brazil. Treatments consisted of four soybean (Glycine max)?maize (Zea mays)?rice (Oryza sativa) rotations that differed in their off-season crop, either a signal grass (Urochloa ruziziensis) forage crop, a second crop, a cover crop, or fallow. Two acid-neutralising materials, dolomitic lime (effective calcium carbonate equivalent (ECCE) = 90%) and calcium-magnesium silicate (ECCE = 80%), were surface applied to raise the soil?s base saturation to 70%. Selected soil physical characteristics were evaluated at three depths (0?0.1, 0.1?0.2, and 0.2?0.4 m). In the top 0.1 m, soil bulk density was lowest (P < 0.05) and macroporosity and aggregate stability index were greatest (P < 0.05) in the forage crop compared with all other production systems. Also, bulk density was lower (P < 0.05) and macroporosity was greater (P < 0.05) in the acid-neutralising-amended than the unamended control soil. In the 0.1?0.2-m interval, mean weight diameter and mean geometric diameter were greater (P < 0.05) in the forage crop compared with all other production systems. All soil properties evaluated in this study in the 0.2?0.4-m interval were unaffected by production system or soil amendment after five complete cropping cycles. Results of this stu... Mostrar Tudo |
Palavras-Chave: |
Aggregation; No-tillage system; Silicate application. |
Thesaurus NAL: |
Liming; Soil structure. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163275/1/4842.pdf
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Marc: |
LEADER 02660naa a2200241 a 4500 001 2074751 005 2019-05-03 008 2017 bl uuuu u00u1 u #d 100 1 $aCASTRO, G. S. A. 245 $aSurface lime and silicate application and crop production system effects on physical characteristics of a Brazilian Oxisol.$h[electronic resource] 260 $c2017 300 $ap. B-J. 520 $aThis work aimed to evaluate the effects of crop rotations and soil acidity amelioration on soil physical properties of an Oxisol (Rhodic Ferralsol or Red Ferrosol in the Australian Soil Classification) from October 2006 to September 2011 in Botucatu, SP, Brazil. Treatments consisted of four soybean (Glycine max)?maize (Zea mays)?rice (Oryza sativa) rotations that differed in their off-season crop, either a signal grass (Urochloa ruziziensis) forage crop, a second crop, a cover crop, or fallow. Two acid-neutralising materials, dolomitic lime (effective calcium carbonate equivalent (ECCE) = 90%) and calcium-magnesium silicate (ECCE = 80%), were surface applied to raise the soil?s base saturation to 70%. Selected soil physical characteristics were evaluated at three depths (0?0.1, 0.1?0.2, and 0.2?0.4 m). In the top 0.1 m, soil bulk density was lowest (P < 0.05) and macroporosity and aggregate stability index were greatest (P < 0.05) in the forage crop compared with all other production systems. Also, bulk density was lower (P < 0.05) and macroporosity was greater (P < 0.05) in the acid-neutralising-amended than the unamended control soil. In the 0.1?0.2-m interval, mean weight diameter and mean geometric diameter were greater (P < 0.05) in the forage crop compared with all other production systems. All soil properties evaluated in this study in the 0.2?0.4-m interval were unaffected by production system or soil amendment after five complete cropping cycles. Results of this study demonstrated that certain soil physical properties can be improved in a no-tillage soybean?maize?rice rotation using a forage crop in the off-season and with the addition of acid-neutralising soil amendments. Any soil and crop management practices that improve soil physical properties will likely contribute to sustaining long-term soil and crop productivity in areas with highly weathered, organic matter-depleted, acidic Oxisols. 650 $aLiming 650 $aSoil structure 653 $aAggregation 653 $aNo-tillage system 653 $aSilicate application 700 1 $aCRUSCIOL, C. A. C. 700 1 $aROSOLEM, C. A. 700 1 $aCALONEGO, J. C. 700 1 $aBRYE, K. R. 773 $tSoil Research$gv. 55, n. 5/6, jun. 2017.
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