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Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
30/11/2021 |
Data da última atualização: |
30/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ARAUJO, F. C. de; NASCENTE, A. S.; FILIPPI, M. C. C. de; SILVA, M. A.; SOUSA, V. S.; LANNA, A. C. |
Afiliação: |
FERNANDO COUTO DE ARAUJO, UFG; ADRIANO STEPHAN NASCENTE, CNPAF; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; MARIANA AGUIAR SILVA, UFG; VINICIUS SILVA SOUSA, UFG; ANNA CRISTINA LANNA, CNPAF. |
Título: |
Cover crops and multifunctional microorganisms can affect development of upland rice. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Australian Journal of Crop Science, v. 15, n. 1, p. 137-144, 2021. |
ISSN: |
1835-2707 |
DOI: |
https://doi.org/10.21475/ajcs.21.15.01.2963 |
Idioma: |
Inglês |
Conteúdo: |
Cultivation of cover crops in the off-season and the use of multifunctional microorganisms are strategic technologies to ensure sustainability in upland rice production. The objective of this work was to determine the effect of mix of cover crops cultivated in the off-season and multifunctional microorganisms on the growth promotion of upland rice plants, under no-tillage systems conducted in the Brazilian Cerrado. The experimental design was a complete randomized blocks in a 6x2 factorial scheme with four replications. The treatments consisted of a combination of six soil covering plants 1. Fallow (control); 2. millet (Pennisetum glaucum) and crotalaria (Crotalaria juncea, C. spectabilis and C. ochroleuca); 3. millet and pigeon pea (Cajanus cajanus); 4. millet and Urochoa ruziziensis; 5. millet, U. ruziziensis and pigeon pea; and 6. millet and buckwheat (Fagopyrum esculentum)), with or without the application of coinoculants 1301 (Bacillus sp.) + Azospirillum sp. The mix of cover crops millet + U. ruziziensis and millet + U. ruziziensis + pigeon pea recorded the largest biomass production and the highest nutrient content in the straw. Rice plants cultivated after millet + pigeon pea showed largest transpiration and stomata conductance. The application of multifunctional microorganisms contributed to an increase of 29% in the photosynthetic rates of rice plants. The highest upland rice grain yield was achieved after mix of millet + crotalaria (Crotalaria juncea, C. spectabilis and C. ochroleuca). The application of multifunctional microorganisms increased the mass of 1000 grains, but does not affect rice grain yield. Our results showed that cover crops significantly affected rice grain yield and the multifunctional microorganisms affected grain quality. MenosCultivation of cover crops in the off-season and the use of multifunctional microorganisms are strategic technologies to ensure sustainability in upland rice production. The objective of this work was to determine the effect of mix of cover crops cultivated in the off-season and multifunctional microorganisms on the growth promotion of upland rice plants, under no-tillage systems conducted in the Brazilian Cerrado. The experimental design was a complete randomized blocks in a 6x2 factorial scheme with four replications. The treatments consisted of a combination of six soil covering plants 1. Fallow (control); 2. millet (Pennisetum glaucum) and crotalaria (Crotalaria juncea, C. spectabilis and C. ochroleuca); 3. millet and pigeon pea (Cajanus cajanus); 4. millet and Urochoa ruziziensis; 5. millet, U. ruziziensis and pigeon pea; and 6. millet and buckwheat (Fagopyrum esculentum)), with or without the application of coinoculants 1301 (Bacillus sp.) + Azospirillum sp. The mix of cover crops millet + U. ruziziensis and millet + U. ruziziensis + pigeon pea recorded the largest biomass production and the highest nutrient content in the straw. Rice plants cultivated after millet + pigeon pea showed largest transpiration and stomata conductance. The application of multifunctional microorganisms contributed to an increase of 29% in the photosynthetic rates of rice plants. The highest upland rice grain yield was achieved after mix of millet + crotalaria (Crotalaria juncea, C. spectabil... Mostrar Tudo |
Thesagro: |
Arroz; Crotalária; Microrganismo; Oryza Sativa; Planta de Cobertura. |
Thesaurus Nal: |
Azospirillum; Bacillus (bacteria); Cajanus; Cover crops; Fagopyrum; Microorganisms; Pennisetum; Rice. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228265/1/ajcs-2021.pdf
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Marc: |
LEADER 02798naa a2200361 a 4500 001 2136806 005 2021-11-30 008 2021 bl uuuu u00u1 u #d 022 $a1835-2707 024 7 $ahttps://doi.org/10.21475/ajcs.21.15.01.2963$2DOI 100 1 $aARAUJO, F. C. de 245 $aCover crops and multifunctional microorganisms can affect development of upland rice.$h[electronic resource] 260 $c2021 520 $aCultivation of cover crops in the off-season and the use of multifunctional microorganisms are strategic technologies to ensure sustainability in upland rice production. The objective of this work was to determine the effect of mix of cover crops cultivated in the off-season and multifunctional microorganisms on the growth promotion of upland rice plants, under no-tillage systems conducted in the Brazilian Cerrado. The experimental design was a complete randomized blocks in a 6x2 factorial scheme with four replications. The treatments consisted of a combination of six soil covering plants 1. Fallow (control); 2. millet (Pennisetum glaucum) and crotalaria (Crotalaria juncea, C. spectabilis and C. ochroleuca); 3. millet and pigeon pea (Cajanus cajanus); 4. millet and Urochoa ruziziensis; 5. millet, U. ruziziensis and pigeon pea; and 6. millet and buckwheat (Fagopyrum esculentum)), with or without the application of coinoculants 1301 (Bacillus sp.) + Azospirillum sp. The mix of cover crops millet + U. ruziziensis and millet + U. ruziziensis + pigeon pea recorded the largest biomass production and the highest nutrient content in the straw. Rice plants cultivated after millet + pigeon pea showed largest transpiration and stomata conductance. The application of multifunctional microorganisms contributed to an increase of 29% in the photosynthetic rates of rice plants. The highest upland rice grain yield was achieved after mix of millet + crotalaria (Crotalaria juncea, C. spectabilis and C. ochroleuca). The application of multifunctional microorganisms increased the mass of 1000 grains, but does not affect rice grain yield. Our results showed that cover crops significantly affected rice grain yield and the multifunctional microorganisms affected grain quality. 650 $aAzospirillum 650 $aBacillus (bacteria) 650 $aCajanus 650 $aCover crops 650 $aFagopyrum 650 $aMicroorganisms 650 $aPennisetum 650 $aRice 650 $aArroz 650 $aCrotalária 650 $aMicrorganismo 650 $aOryza Sativa 650 $aPlanta de Cobertura 700 1 $aNASCENTE, A. S. 700 1 $aFILIPPI, M. C. C. de 700 1 $aSILVA, M. A. 700 1 $aSOUSA, V. S. 700 1 $aLANNA, A. C. 773 $tAustralian Journal of Crop Science$gv. 15, n. 1, p. 137-144, 2021.
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Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
09/06/2016 |
Data da última atualização: |
23/08/2017 |
Tipo da produção científica: |
Nota Técnica/Nota Científica |
Autoria: |
BALARO, M. F. A.; FONSECA, J. F. da; BARBOSA, T. G. B.; SOUZA-FABJAN, J. M. G.; FIGUEIRA, L. M.; TEIXEIRA, T. A.; CARVALHEIRA, L. R.; BRANDÃO, F. Z. |
Afiliação: |
Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University (UFF) - Niteroi, RJ, Brazil; JEFERSON FERREIRA DA FONSECA, CNPC; Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University (UFF) - Niteroi, RJ, Brazil; Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University (UFF) - Niteroi, RJ, Brazil; Department of Animal Science, Veterinary School, Fluminense Federal University (UFF) - Niteroi, RJ, Brazil; Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University (UFF) - Niteroi, RJ, Brazil; Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University (UFF) - Niteroi, RJ, Brazil; Department of Pathology and Veterinary Clinic, Veterinary School, Fluminense Federal University (UFF) - Niteroi, RJ, Brazil. |
Título: |
Potential role for GnRH in the synchronization of follicular emergence before the superovulatory Day 0 protocol. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Domestic Animal Endocrinology, Stoneham, v. 54, p. 10-14, Jan. 2016. |
DOI: |
10.1016/j.domaniend.2015.07.002 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The ability of gonadotropin-releasing hormone (GnRH) to synchronize ovulation and new follicular wave emergence before a "superovulatory Day 0" protocol was assessed in Santa Inês ewes. For estrus synchronization, a 60-mg medroxyprogesterone acetate sponge was inserted for 6 d. One day before sponge removal, 37.5-ug d-cloprostenol and 300 IU equine chorionic gonadotropin were injected intramuscularly (i.m.). After sponge removal, ewes were assigned to the following 3 groups: (1) GC-1 mL saline at 12 h (n = 10); (2) G24h-0.025-mg lecirelin (GnRH agonist) i.m. at 24 h (n = 10); or (3) G36h-0.025-mg lecirelin i.m. at 36 h (n = 9). Ovarian ultrasonography was conducted to assess follicular dynamics. Blood was collected to determine plasma concentrations of progesterone and estradiol. Females from G36h and GC had a greater (P < 0.05) estrous response than those from the G24h group (78.0 and 90.0 vs 0.0%, respectively). Ewes from G24h and G36h had earlier (P < 0.05) ovulation (48.0 ± 10.2 and 56.7 ± 5.7 h) compared with those from Gc (64.1 ± 9.7 h). The mean number of ovulations per ewe was greater (P < 0.05) in Gc (1.9 ± 0.6) and G36h (2.0 ± 1.0) than G24h (1.2 ± 0.4). Plasma concentrations of progesterone and estradiol differed over time. Follicular growth during the postovulatory day was affected (P < 0.05) by day of the estrus cycle as well as by the interaction (P < 0.05) of treatment and day of the estrus cycle. There was a larger (P < 0.05) population of medium follicles during the first 24 h after the ovulation in G24h compared with Gc, and there was an absence of large follicles in G36h between 36 and 72 h after ovulation. In conclusion, the use of GnRH agonist at 36 h more efficiently synchronized ovulation and promoted the absence of dominant follicles during early diestrus and may be used at the start of superovulatory treatment at 80 h in Santa Inês ewes. MenosAbstract: The ability of gonadotropin-releasing hormone (GnRH) to synchronize ovulation and new follicular wave emergence before a "superovulatory Day 0" protocol was assessed in Santa Inês ewes. For estrus synchronization, a 60-mg medroxyprogesterone acetate sponge was inserted for 6 d. One day before sponge removal, 37.5-ug d-cloprostenol and 300 IU equine chorionic gonadotropin were injected intramuscularly (i.m.). After sponge removal, ewes were assigned to the following 3 groups: (1) GC-1 mL saline at 12 h (n = 10); (2) G24h-0.025-mg lecirelin (GnRH agonist) i.m. at 24 h (n = 10); or (3) G36h-0.025-mg lecirelin i.m. at 36 h (n = 9). Ovarian ultrasonography was conducted to assess follicular dynamics. Blood was collected to determine plasma concentrations of progesterone and estradiol. Females from G36h and GC had a greater (P < 0.05) estrous response than those from the G24h group (78.0 and 90.0 vs 0.0%, respectively). Ewes from G24h and G36h had earlier (P < 0.05) ovulation (48.0 ± 10.2 and 56.7 ± 5.7 h) compared with those from Gc (64.1 ± 9.7 h). The mean number of ovulations per ewe was greater (P < 0.05) in Gc (1.9 ± 0.6) and G36h (2.0 ± 1.0) than G24h (1.2 ± 0.4). Plasma concentrations of progesterone and estradiol differed over time. Follicular growth during the postovulatory day was affected (P < 0.05) by day of the estrus cycle as well as by the interaction (P < 0.05) of treatment and day of the estrus cycle. There was a larger (P < 0.05) population of medium fo... Mostrar Tudo |
Palavras-Chave: |
GnRH; Medroxyprogesterone acetate; MOET; Oestrus synchronization; Raça Santa Inês. |
Thesagro: |
Ciclo estral; Estradiol; Hormônio animal; Ovino; Ovulação; Progesterona; Sincronização do cio. |
Thesaurus NAL: |
Ovarian follicles; Ovulation; Progesterone; Sheep; Ultrasonography. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 03153naa a2200421 a 4500 001 2046656 005 2017-08-23 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1016/j.domaniend.2015.07.002$2DOI 100 1 $aBALARO, M. F. A. 245 $aPotential role for GnRH in the synchronization of follicular emergence before the superovulatory Day 0 protocol.$h[electronic resource] 260 $c2016 520 $aAbstract: The ability of gonadotropin-releasing hormone (GnRH) to synchronize ovulation and new follicular wave emergence before a "superovulatory Day 0" protocol was assessed in Santa Inês ewes. For estrus synchronization, a 60-mg medroxyprogesterone acetate sponge was inserted for 6 d. One day before sponge removal, 37.5-ug d-cloprostenol and 300 IU equine chorionic gonadotropin were injected intramuscularly (i.m.). After sponge removal, ewes were assigned to the following 3 groups: (1) GC-1 mL saline at 12 h (n = 10); (2) G24h-0.025-mg lecirelin (GnRH agonist) i.m. at 24 h (n = 10); or (3) G36h-0.025-mg lecirelin i.m. at 36 h (n = 9). Ovarian ultrasonography was conducted to assess follicular dynamics. Blood was collected to determine plasma concentrations of progesterone and estradiol. Females from G36h and GC had a greater (P < 0.05) estrous response than those from the G24h group (78.0 and 90.0 vs 0.0%, respectively). Ewes from G24h and G36h had earlier (P < 0.05) ovulation (48.0 ± 10.2 and 56.7 ± 5.7 h) compared with those from Gc (64.1 ± 9.7 h). The mean number of ovulations per ewe was greater (P < 0.05) in Gc (1.9 ± 0.6) and G36h (2.0 ± 1.0) than G24h (1.2 ± 0.4). Plasma concentrations of progesterone and estradiol differed over time. Follicular growth during the postovulatory day was affected (P < 0.05) by day of the estrus cycle as well as by the interaction (P < 0.05) of treatment and day of the estrus cycle. There was a larger (P < 0.05) population of medium follicles during the first 24 h after the ovulation in G24h compared with Gc, and there was an absence of large follicles in G36h between 36 and 72 h after ovulation. In conclusion, the use of GnRH agonist at 36 h more efficiently synchronized ovulation and promoted the absence of dominant follicles during early diestrus and may be used at the start of superovulatory treatment at 80 h in Santa Inês ewes. 650 $aOvarian follicles 650 $aOvulation 650 $aProgesterone 650 $aSheep 650 $aUltrasonography 650 $aCiclo estral 650 $aEstradiol 650 $aHormônio animal 650 $aOvino 650 $aOvulação 650 $aProgesterona 650 $aSincronização do cio 653 $aGnRH 653 $aMedroxyprogesterone acetate 653 $aMOET 653 $aOestrus synchronization 653 $aRaça Santa Inês 700 1 $aFONSECA, J. F. da 700 1 $aBARBOSA, T. G. B. 700 1 $aSOUZA-FABJAN, J. M. G. 700 1 $aFIGUEIRA, L. M. 700 1 $aTEIXEIRA, T. A. 700 1 $aCARVALHEIRA, L. R. 700 1 $aBRANDÃO, F. Z. 773 $tDomestic Animal Endocrinology, Stoneham$gv. 54, p. 10-14, Jan. 2016.
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