Disponibilidade e valor nutritivo de forragem de leguminosas nativas (Adesmia DC.) e exóticas (Lotus L.)

Scheffer-Basso, Simone Meredith; Jacques, Aino Victor Avila; Dall'Agnol, Miguel; Riboldi, João; Castro, Stela Maris de Jezus

doi:10.1590/s1516-35982001000400010

Cited by 11 publications

(7 citation statements)

References 11 publications

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“…A moderate effect of maturity has also been observed in other Adesmia species; in vitro organic matter digestibility from the vegetative stage to the start of flowering in A. punctata and A. latifolia, ranged from 0.72 to 0.68 and from 0.71 to 0.72, respectively (Scheffer-Basso et al 2001). Minor variations in in vitro digestibility with phenological stage of legumes have been reported for other legumes (Marinas et al 1993;Terrill et al 2003), although this response is not consistent, and the opposite has also been observed in vitro and in situ with white clover (Ayres et al 1998) and alfalfa (Buxton 1996;Yu et al 2004).…”

Section: Discussionmentioning

confidence: 76%

Nutritive value for ruminants of two herbaceous South American native legumes: Adesmia bicolor and Adesmia macrostachya

2014

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Abstract. Chemical composition, in vitro fermentation and in situ degradability of the native South American legumes Adesmia bicolor and A. macrostachya were studied at vegetative (VG), flowering (FW) and seeding (SD) stages, and compared with those of alfalfa at 10% flowering (AL) in two separate studies. In A. bicolor, crude protein (CP) content was highest for FW, and FW and SD showed higher values than did AL (P < 0.05). At all stages, A. bicolor showed a lower content of neutral detergent fibre and acid detergent fibre than did AL (P < 0.05). The maximum gas production (Coefficient b) was highest for FW, and no differences were recorded between SD and AL, the lowest value being for VG (P < 0.05). The effective dry matter degradability was higher for FW and VG than for SD and AL (P < 0.05), whereas effective CP degradability tended (P = 0.077) to be higher for FW than for the other stages of A. bicolor, but no differences between FW and AL were detected. A. macrostachya had lower CP content (P < 0.001), but its VG and FW stages also had lower proportions of neutral detergent fibre, acid detergent fibre and acid detergent lignin (P < 0.01) than did AL. Chemical and fermentation parameters were affected by maturity of A. macrostachya. The effective dry matter degradability was higher for VG and FW than for SD and AL (P < 0.001), but no differences were apparent on the effective CP degradability. A. bicolor showed a high nutritive value, which was even higher than that of AL, and the maturity stage of this species did not markedly affect its nutritive value, whereas the nutritive value of A. macrostachya reduced as it matured.

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Section: Discussionmentioning

confidence: 76%

Nutritive value for ruminants of two herbaceous South American native legumes: Adesmia bicolor and Adesmia macrostachya

2014

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“…For the isolated UFRGS Om57, UFRGS Om59 and UFRGS Om148, the relative efficiency index (RER %) for accumulation of total nitrogen (N) in shoots was greater than 100%. These results demonstrate the high efficiency of these isolated (Table 3) which were higher than those found in the literature, as the study of symbiosis between rhizobia grown forage legumes (Scheffer-Basso et al, 2001;Frizzo, 2007) and (Scheffer-Basso et al, 2001). Fontoura et al (2011) obtained similar results with the inoculation of rhizobia in Lotus glaber.…”

Section: Discussionmentioning

confidence: 50%

Rhizobia isolation and selection for serradella (Ornithopus micranthus) in Southern Brazil

Machado¹,

de²,

Oldra³

et al. 2016

Afr. J. Microbiol. Res.

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Serradella is a plant that belongs to the Fabaceae family, with recognized forage value and has the ability to associate symbiotically with rhizobia. The objective of this study was to isolate, authenticate and select effective rhizobia obtained from native serradella (Ornithopus micranthus) to reduce the need for mineral fertilizer. Nodules, roots of serradella and rhizosphere soil samples were collected in seven municipalities from Rio Grande do Sul and Santa Catarina states. Bacterial colonies were isolated and identified based on morphological characteristics. The authentification and initial selection of rhizobia were conducted in vitro. The most promising strains from the in vitro study were evaluated in a greenhouse experiment for 60 days. Among the 148 bacterial cultures characterized, 113 induced the formation of nodules in serradella while 32 isolate effectively increased fresh mass of plants under in vitro conditions. The strains UFRGS Om57, UFRGS Om59 and UFRGS Om148 formed nodules with greater dry mass and produced high dry mass of plants (shoots and roots) which allowed greater accumulation of N in the shoots.

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“…Em experimentos conduzidos em casa de vegetação, tem sido observado que plantas da espécie Adesmia latifolia se destacam pela maior exuberância de folhas, acúmulo de biomassa aérea, teor de proteína bruta, hábito estolonífero e capacidade para fixação simbiótica de nitrogênio do que outras espécies do mesmo gênero [2]. A espécie A. latifolia é tolerante a diferentes doses de alumínio, o que não é observado com A. tristis [3].…”

Section: Introductionunclassified

Isolamento, Autenticação E Seleção De Rizóbios Isolados De Adesmia

Machado¹,

Sá

Costa³

et al. 2015

Tecno-log.

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____________________________________________________________________________________________________________ RESUMOA adesmia (Adesmia latifolia) é uma leguminosa nativa da região sul do Brasil, que apresenta algumas características de crescimento e adaptação interessantes para o seu cultivo como espécie forrageira. O objetivo do presente trabalho foi isolar, identificar e autenticar rizóbios infectivos e eficientes quanto à fixação biológica de nitrogênio em adesmia. Com base em características morfo-fisiológicas foram isoladas e identificadas colônias com características rizobianas. Também foram estudadas três estirpes recomendadas para adesmia (SEMIA 3007, SEMIA 6437 e SEMIA 6438), e 50 rizóbios isolados de A. latifolia, fornecidos pela Epagri-SC. Foram obtidos 17 isolados bacterianos. No experimento para autenticação observou-se que do total de rizóbios estudados, 61 isolados foram capazes de nodular adesmia e 38 foram capazes de incrementar a massa fresca das plantas. As plantas inoculadas com os isolados EEL46210 e EEL1010 superaram as do tratamento Controle + N e as inoculadas com a estirpe SEMIA6437 na produção de massa fresca total, número de folhas e comprimento da parte aérea.Palavras-chave: Fixação Biológica de Nitrogênio (FBN). Simbiose. Adesmia latifolia. Pastagem Nativa.

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Disponibilidade e valor nutritivo de forragem de leguminosas nativas (Adesmia DC.) e exóticas (Lotus L.)

Cited by 11 publications

References 11 publications

Nutritive value for ruminants of two herbaceous South American native legumes: Adesmia bicolor and Adesmia macrostachya

Nutritive value for ruminants of two herbaceous South American native legumes: Adesmia bicolor and Adesmia macrostachya

Rhizobia isolation and selection for serradella (Ornithopus micranthus) in Southern Brazil

Isolamento, Autenticação E Seleção De Rizóbios Isolados De Adesmia

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