Descrição botânica de linhagens puras selecionadas de guandu

Provazi, M.; Camargo, Lívia Haik Guedes de; Santos, P. M.; Godoy, R.

doi:10.1590/s1516-35982007000200008

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…), a close relative of soybean, is a perennial, diploid, selfpollinating legume with a genome size of ~830 Mbp. We screened 52 accessions of C. cajan that were introduced into Brazil during C. cajan breeding programs 23 . When challenged with the Brazilian monopustule P. pachyrhizi isolate PPUFV02 (isolated from a mixed field sample) 52 accessions displayed a range of phenotypes, from immune (where symptoms cannot be macroscopically observed), to susceptibility levels similar to soybean's ( Fig.…”

Section: E T T E R Smentioning

confidence: 99%

A pigeonpea gene confers resistance to Asian soybean rust in soybean

et al. 2016

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Asian soybean rust (ASR), caused by the fungus Phakopsora pachyrhizi, is one of the most economically important crop diseases, but is only treatable with fungicides, which are becoming less effective owing to the emergence of fungicide resistance. There are no commercial soybean cultivars with durable resistance to P. pachyrhizi, and although soybean resistance loci have been mapped, no resistance genes have been cloned. We report the cloning of a P. pachyrhizi resistance gene CcRpp1 (Cajanus cajan Resistance against Phakopsora pachyrhizi 1) from pigeonpea (Cajanus cajan) and show that CcRpp1 confers full resistance to P. pachyrhizi in soybean. Our findings show that legume species related to soybean such as pigeonpea, cowpea, common bean and others could provide a valuable and diverse pool of resistance traits for crop improvement.

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Section: E T T E R Smentioning

confidence: 99%

A pigeonpea gene confers resistance to Asian soybean rust in soybean

et al. 2016

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“…Several studies have been conducted on legumes in sugarcane silage (Contreras-Govea et al, 2011;Mendieta-Araica, Spörndly, Reyes-Sánchez, Norell, & Spörndly, 2009), but few studies have added pigeon pea (Cajanus cajan (L.) Millsp.). Pigeon pea is a shrub, semiperent and well adapted to the tropical climatic conditions, it is used in animal feed in exclusive and intercropping pastures and as green fodder, hay and silage (Bonfim-Silva et al, 2014;Provazi, Camargo, Santos, & Godoy, 2007). The inclusion of legumes in grass silage, such as sugarcane, can promote the increase of protein in the bulky.…”

Section: Introductionmentioning

confidence: 99%

Chemical composition and fermentative losses of mixed sugarcane and pigeon pea silage

Pereira

Lana

Carmo

et al. 2019

Acta Sci. Anim. Sci.

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Adding legumes to sugarcane silage is a strategy used to improve silage quality and reduce losses. This study's objective was to evaluate the chemical composition and fermentation profile of silages sugarcane and pigeon pea. A completely randomized design was used, with five treatments and four replications. The treatments consisted of sugarcane silage with increasing pigeon pea proportions (0, 25, 50, 75 and 100%). The forages were ensiled in experimental microsilos that remained closed for 60 days. Their chemical compositions were evaluated by determining the pH value and dry matter, crude protein, neutral detergent fiber, acid detergent fiber, hemicellulose, cellulose and lignin content. Fermentation profiles were evaluated by determining the effluent, gas, and total dry matter losses and dry matter recovery of the silage. Including pigeon pea in sugarcane silage decreases the hemicellulose content and increases the crude protein, acid detergent fiber and lignin content. Fermentation losses are reduced by adding pigeon pea to sugarcane silage with reduced effluent and gas losses and increased dry matter.

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“…Pigeon pea (Cajanus cajan) is a plant that is resistant to adverse climate and soil conditions, such as those found in the Brazilian Cerrado, and is used in soil improvement, recovery of degraded land, phytoremediation, pasture renovation, as a forage, and for human consumption (AZEVEDO; CARVALHO;MARQUES, 2008;PROVAZI;CAMARGO;GODOY, 2007). This plant also has a high biomass-producing capacity, being able to yield up to 11 t ha -1 and contributing to the incorporation of N and P (283 kg ha -1 and 23 kg ha -1 , respectively) (ALVES et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Development of Pigeon Pea Inoculated With Rhizobium Isolated From Cowpea Trap Host Plants

et al. 2016

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-Pigeon pea is an important protein source grown in several tropical and sub-tropical countries, and is considered a multi-purpose plant that is resistant to the conditions of the Brazilian Cerrado. Among the possible uses for cowpea, its use as a green manure, increasing soil nitrogen content through the association with diazotrophic bacteria, generically known as rhizobia, is noteworthy. The present work aimed to evaluate the efficiency of Rhizobium strains isolated from cowpea plants in the development of pigeon peas cultured in Red Latosol. The experiment was conducted in a greenhouse, using a completely randomized design with seven treatments and four replications. Treatments consisted of inoculation with four Rhizobium strains (MT8, MT15, MT16, and MT23) and one commercial inoculant comprising Bradyrhizobium spp. strains BR 2801 and BR 2003. There were two controls, one absolute (without inoculation or nitrogen fertilization) and the other with nitrogen fertilization. Each experimental plot consisted of an 8-dm 3 vase containing three plants. Analyzed variables included plant height, SPAD index, number and dry weight of nodules, and shoot and root dry masses. Pigeon peas responded significantly to inoculation treatment, since all the plants inoculated with Rhizobium strains isolated from cowpea strains showed results similar to plants in the nitrogen control and commercial inoculant treatments. This demonstrates a favorable plant-bacteria interaction, which can be utilized as an alternative nitrogen source for pigeon peas.Keywords: Cajanus cajan. Cerrado. Inoculation. DESENVOLVIMENTO DO FEIJÃO GUANDU INOCULADO COM RIZÓBIO ISOLADO DE PLANTAS ISCAS DE FEIJÃO CAUPIRESUMO -O feijão guandu é uma importante fonte proteica usada em diversos países dos trópicos e subtrópicos, sendo considerada uma planta de múltiplos usos e resistente às condições do Cerrado brasileiro. Dentre as atividades utilizadas, destaca-se o emprego como adubo verde, promovendo aumento do teor de nitrogênio no solo através da associação com bactérias diazotróficas genericamente conhecidas como rizóbio. Este trabalho teve por objetivo avaliar a eficiência de estirpes de rizóbio isoladas de plantas de feijão caupi sobre o desenvolvimento do feijão guandu cultivado em Latossolo Vermelho. O experimento foi conduzido em casa de vegetação, em delineamento experimental inteiramente casualizado com sete tratamentos e quatro repetições. Os tratamentos foram constituídos de cinco estirpes de rizóbio (MT8, MT15, MT16, MT23, um inoculante comercial composto pelas estirpes BR 2801 e BR 2003 de Bradyrhizobium spp.) e duas testemunhas, sendo uma absoluta (sem inoculação e sem adubação nitrogenada) e outra com adubação nitrogenada. Cada parcela experimental foi composta por um vaso de 8 dm 3 , contendo três plantas. As variáveis analisadas foram altura de plantas, índice SPAD, número e massa seca de nódulos e massa seca da parte aérea e das raízes. O feijão guandu respondeu significativamente aos tratamentos com inoculação, onde todas as estirpes ...

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Descrição botânica de linhagens puras selecionadas de guandu

Cited by 4 publications

References 2 publications

A pigeonpea gene confers resistance to Asian soybean rust in soybean

A pigeonpea gene confers resistance to Asian soybean rust in soybean

Chemical composition and fermentative losses of mixed sugarcane and pigeon pea silage

Development of Pigeon Pea Inoculated With Rhizobium Isolated From Cowpea Trap Host Plants

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