scholarly journals Approche intégrée pour la production de semences fourragères et la complémentation de vaches laitières dans la région semi-aride du Cameroun

2002 ◽  
Vol 55 (4) ◽  
pp. 269
Author(s):  
Anastasia Asongwed-Awa ◽  
Aboubakar Njoya
Keyword(s):  
Stylosanthes Hamata ◽  
Calopogonium Mucunoides ◽  
Macroptilium Lathyroides

Stylosanthes hamata, Calopogonium mucunoides et Macroptilium lathyroides ont été semés en association avec du maïs dans un dispositif en blocs randomisés. L’âge à la maturité, le rendement en matière sèche du fourrage et le rendement semencier ont été déterminés à la fin de leurs cycles. Dans un autre essai, S. hamata et C. mucunoides ont été semés et divisés en sous-parcelles destinées à la coupe, à la pâture ou conservés comme témoin. Les vaches en lactation ont été introduites dans les parcelles destinées à la pâture, alors que les parcelles destinées à la coupe ont été coupées à la fin de la période de pâture. L’association de cultures n’a pas eu d’effet significatif sur l’âge à la floraison ni sur la production de semences. La mise en place a cependant été plus lente pour C. mucunoides et S. hamata en association. Le rendement en matière sèche de C. mucunoides et de M. lathyroides, respectivement en culture pure et en culture associée, a été similaire, mais il a été significativement plus élevé dans les parcelles pures de S. hamata (p < 0, 01). Le rendement semencier a été similaire dans les deux traitements de S. hamata et M. lathyroides, mais il a été significativement plus élevé dans les parcelles pures de C. mucunoides (p < 0, 001). Au cours de l’année de mise en place, la pâture et la coupe ont réduit le rendement en semences de S. hamata (p < 0, 001) par rapport au témoin. Cependant, cette différence a été largement compensée par une augmentation de 35 p. 100 de la production laitière des vaches pâturant S. hamata. Ces résultats montrent que la production de semences de légumineuses fourragères est possible et gérable dans un système de production intégré.

scholarly journals Une approche des coûts de production des semences fourragères dans la zone soudano-sahélienne du Cameroun

2000 ◽  
Vol 53 (3) ◽  
pp. 273
Author(s):  
Joseph Onana ◽  
Samuel Yonkeu
Keyword(s):  
Cajanus Cajan ◽  
Mucuna Pruriens ◽  
Stylosanthes Hamata ◽  
Calopogonium Mucunoides ◽  
Macroptilium Lathyroides

Les coûts de production des semences de sept légumineuses fourragères ont été évalués en zone soudano-sahélienne du Cameroun. Ils étaient inférieurs à 1.000 FCFA/kg pour Calopogonium mucunoides, Cajanus cajan, Desmodium distorturn, Mucuna pruriens et Stylosanthes hamata (1 FCFA = 0, 01 FF). La production de semences de Centrosema pascuorum et de Macroptilium lathyroides, avec des coûts respectifs de 1.890 et de 3.025 FCFA/kg, ne semble pas adaptée à la vulgarisation dans la zone de l'étude.

Growth, Nodulation and Nitrogen Fixation in Stylosanthes: Effect of Different Root Temperatures at two Shoot Temperatures

1989 ◽  
Vol 25 (4) ◽  
pp. 447-460 ◽  
Author(s):  
R. A. Date ◽  
D. Ratcliff
Keyword(s):  
Nitrogen Fixation ◽  
Dry Matter ◽  
Maximum Yield ◽  
Dry Weight ◽  
Strong Interactions ◽  
Root Temperature ◽  
Relative Growth ◽  
Stylosanthes Hamata ◽  
Nitrogen Yields ◽  
Controlled Environments

SUMMARYNodulated plants of Stylosanthes hamata, S. guianensis, S. humilis, S. scabra and S. fruticosa were grown in controlled environments with varied root and shoot temperatures. Measurement of dry matter and nitrogen content suggested that shoot temperature may be more important than root temperature in controlling growth and nitrogen fixation. There were strong interactions with variety. A fall in relative growth rate with increase in shoot temperature was least for S. guianensis and greatest for S. hamata and S. scabra. The optimum root temperature for growth and nitrogen fixation was approximately 30°C. Ninety percent maximum yield was achieved between root temperatures of 15–36°C for growth and 23–34°C for nitrogen fixation but varied with variety. Nitrogen fixation was more sensitive than dry weight to root temperature. The pattern of response of percentage nitrogen and nitrogen fixation efficiency reflected those for dry weight and nitrogen yields. Shoot to root ratios decreased toward the optimum root temperature then increased at the highest temperature. The reaction of varieties to root and shoot temperatures may be an important factor in determining their suitability for new regions.

scholarly journals Avaliação quantitativa e qualitativa da fitomassa de leguminosas para uso como cobertura de solo

2004 ◽  
Vol 34 (3) ◽  
pp. 947-949 ◽  
Author(s):  
João Tavares Nascimento ◽  
Ivandro de França da Silva
Keyword(s):  
Leucaena Leucocephala ◽  
Cajanus Cajan ◽  
Pueraria Phaseoloides ◽  
Crotalaria Juncea ◽  
Clitoria Ternatea ◽  
Canavalia Ensiformis ◽  
Calopogonium Mucunoides ◽  
Macroptilium Atropurpureum

Para uso como adubo verde em um experimento em Alagoinha-PB, avaliaram-se doze espécies de leguminosas: crotalária (Crotalaria juncea L), guandu (Cajanus cajan L), guandu anão (Cajanus cajan (L) Millsp), calopogônio (Calopogonium mucunoides L), feijão-de-porco (Canavalia ensiformis L), lab-lab (Dolichos lab lab L), kudzu tropical (Pueraria phaseoloides L), siratro (Macroptilium atropurpureum L), leucena (Leucaena leucocephala L), cunhã (Clitoria ternatea L), mucuna preta (Styzolobium aterrimum L), e mucuna cinza (Styzolobium cinereum Piper e Tracy), no DBC com 12 tratamentos, em parcelas de 20m2, com três repetições. Constataram-se as maiores produções de fitomassa para leucena, guandu, mucuna preta, kudzu tropical, feijão-de-porco e cunhã, enquanto que para a crotalária, a menor produção. A fitomassa do kudzu tropical mostrou-se com melhor qualidade para a incorporação.

scholarly journals DESEMPENHO DE BANANEIRAS CULTIVAR "NANICÃO" SOBRE COBERTURA VIVA DE SOLO NO SEMIÁRIDO

2015 ◽  
Vol 28 (4) ◽  
pp. 110-115
Author(s):  
MATEUS AUGUSTO LIMA QUARESMA ◽  
FÁBIO LUIZ DE OLIVEIRA ◽  
DIEGO MATHIAS NATAL DA SILVA ◽  
RUIMÁRIO INÁCIO COELHO ◽  
EDUARDO CÉSAR COSTA
Keyword(s):  
Pueraria Phaseoloides ◽  
Calopogonium Mucunoides

RESUMO: Este trabalho teve como objetivo avaliar o crescimento vegetativo e a produtividade da bananeira cv. "Nanicão" cultivada sobre coberturas de solo com leguminosas herbáceas perenes no semiárido. O delineamento experimental foi em blocos casualizados, com quatro repetições, em esquema de parcelas subsubdivididas no tempo, sendo nas parcelas o fator "A" constituído por três manejos de cobertura do solo, pelas leguminosas cudzu tropical ( Calopogonium mucunoides ), calopogônio ( Pueraria phaseoloides ) e solo descoberto (solo capinado), fator "B" nas subparcelas e plantas de bananeiras em três idades morfofisiológicas (diferentes ciclos e tamanhos), e o fator "C" datas das coletas nas subparcelas. O cultivo de bananeira em solo sob cobertura viva com calopogônio e cudzu tropical na região do semiárido promoveu aumento no número e peso do fruto, pencas e cachos.

scholarly journals Heliotropism and water availability effects on flowering dynamics and seed production in Macroptilium lathyroides

2006 ◽  
Vol 28 (2) ◽  
pp. 45-52 ◽  
Author(s):  
Armando Martins dos Santos ◽  
Luis Mauro Gonçalves Rosa ◽  
Lucia Brandão Franke ◽  
Carlos Nabinger
Keyword(s):  
Seed Production ◽  
Water Availability ◽  
Yield Components ◽  
Seed Weight ◽  
Field Capacity ◽  
Leaf Movements ◽  
Independent Effects ◽  
Total Seed ◽  
Macroptilium Lathyroides ◽  
Response To Water

The experiment was carried out in pots in a glasshouse, with one plant per pot and nine repetitions per treatment. The treatments consisted of free or restricted leaves, submited to 90-100% or 60-70% soil field capacity (FC). Only independent effects of water availability or leaf movement were observed on yield components. Plants under well-watered conditions and with freely orienting leaves were taller, and had a larger number of ramifications. The greater development favored the setting of a higher number of inflorescences per plant in these treatments. This behavior resulted in a high number of flowers, green and mature legumes per plant, thus resulting in high seed production which was the most evident response to water availability. Although individual seed weight was higher in the water stress treatment, total seed production was higher for well-watered plants, with no statistically significant effect of leaf movements.

Prenylated flavonoids from seeds of Calopogonium mucunoides

1982 ◽  
Vol 21 (2) ◽  
pp. 488-489 ◽  
Author(s):  
Marilia O.daS. Pereira ◽  
Edna C. Fantine ◽  
José R. de Sousa
Keyword(s):  
Prenylated Flavonoids ◽  
Calopogonium Mucunoides

scholarly journals Symbiotic capability of calopo rhizobia from an agrisoil with different crops in Pernambuco

2013 ◽  
Vol 37 (4) ◽  
pp. 869-876 ◽  
Author(s):  
Altanys Silva Calheiros ◽  
Mario de Andrade Lira Junior ◽  
Débora Magalhães Soares ◽  
Márcia do Vale Barreto Figueiredo
Keyword(s):  
Dry Matter ◽  
Nitrogen Sources ◽  
Dry Weight ◽  
Dry Forest ◽  
Forest Zone ◽  
Symbiotic Efficiency ◽  
Total N ◽  
Calopogonium Mucunoides ◽  
Legume Symbiosis ◽  
Biological Nitrogen

Biological nitrogen fixation by rhizobium-legume symbiosis represents one of the most important nitrogen sources for plants and depends strongly on the symbiotic efficiency of the rhizobium strain. This study evaluated the symbiotic capacity of rhizobial isolates from calopo (CALOPOGONIUM MUCUNOIDES) taken from an agrisoil under BRACHIARIA DECUMBENS pasture, sabiá (MIMOSA CAESALPINIIFOLIA) plantations and Atlantic Forest areas of the Dry Forest Zone of Pernambuco. A total of 1,575 isolates were obtained from 398 groups. A single random isolate of each group was authenticated, in randomized blocks with two replications. Each plant was inoculated with 1 mL of a bacterial broth, containing an estimated population of 10(8) rhizobial cells mL-1. Forty-five days after inoculation, the plants were harvested, separated into shoots, roots and nodules, oven-dried to constant mass, and weighed. Next, the symbiotic capability was tested with 1.5 kg of an autoclaved sand:vermiculite (1:1) mixture in polyethylene bags. The treatments consisted of 122 authenticated isolates, selected based on the shoot dry matter, five uninoculated controls (treated with 0, 50, 100, 150, or 200 kg ha-1 N) and a control inoculated with SEMIA 6152 (=BR1602), a strain of BRADYRHIZOBIUM JAPONICUM The test was performed as described above. The shoot dry matter of the plants inoculated with the most effective isolates did not differ from that of plants treated with 150 kg ha-1 N. Shoot dry matter was positively correlated with all other variables. The proportion of effective isolates was highest among isolates from SABIÁ forests. There was great variation in nodule dry weight, as well as in N contents and total N.

scholarly journals Detecting bean golden yellow mosaic virus in bean breeding lines and in the common legume weed Macroptilium lathyroides in Puerto Rico.

1969 ◽  
Vol 85 (3-4) ◽  
pp. 165-176
Author(s):  
Lydia I. Rivera-Vargas ◽  
Vilmaris Bracero-Acosta ◽  
James S. Beaver ◽  
Dan E. Purcifull ◽  
Jane E. Polston ◽  
...  
Keyword(s):  
Puerto Rico ◽  
Mosaic Virus ◽  
Yellow Mosaic Virus ◽  
Phaseolus Vulgaris L ◽  
Breeding Lines ◽  
Golden Yellow ◽  
Enzymelinked Immunosorbent Assay ◽  
The Common ◽  
Polymerase Chain ◽  
Macroptilium Lathyroides

Bean golden yellow mosaic virus (BGYMV) is a geminivirus transmitted by whiteflies (Genus: Bemisia). This virus causes significant fosses in common bean (Phaseolus vulgaris L.). Serological techniques such as enzymelinked immunosorbent assay (ELISA) have been widely used for detection of viruses. We evaluated existing monoclonal antibodies (3F7,2G5 and 5C5) for the detection of BGYMV isolates in bean fines in Puerto Rico. Monoclonal antibody 3F7 was the most effective in detecting the virus in tissues of line DOR 364 and susceptible cuftivars Top Crop and Quest. However, it was not effective in the detection of BGYMV in lines of DOR 303, which showed typical symptoms. Sampfes from Macroptilium lathyroides, a weed that might be a possible reservoir of the virus, were also tested for viraf infection. ELISA tests were inconclusive for detection of geminiviruses in M. lathyroides. Polymerase Chain Reaction (PCR) was also used to complement BGYMV diagnosis in M. lathyroides and in bean lines that showed symptoms but were negative for the ELfSA test. Two sets of primers, specific for Begomovirus such as BGYMV, were used in PCR experiments. Using PCR, we were able to detect the virus in the line DOR 303 and in M. lathyroides tissues.

scholarly journals SYMBIOTIC EFFECTIVENESS AND COMPETITIVENESS OF CALOPO RHIZOBIAL ISOLATES IN AN ARGISSOLO VERMELHO-AMARELO UNDER THREE VEGETATION COVERS IN THE DRY FOREST ZONE OF PERNAMBUCO

2015 ◽  
Vol 39 (2) ◽  
pp. 367-376 ◽  
Author(s):  
Altanys Silva Calheiros ◽  
Mario de Andrade Lira Junior ◽  
Mércia Virgínia Ferreira Santos ◽  
Maria do Carmo Catanho Pereira Lyra
Keyword(s):  
Dry Mass ◽  
Dry Forest ◽  
N Fixation ◽  
Forage Legumes ◽  
Forest Zone ◽  
Biological N Fixation ◽  
Pasture Degradation ◽  
Calopogonium Mucunoides ◽  
N Rates ◽  
Rhizobial Isolates

Biological N fixation in forage legumes is an important alternative to reduce pasture degradation, and is strongly influenced by the inoculant symbiotic capability. This paper evaluates the effectiveness of Calopo (Calopogonium mucunoides) rhizobial isolated from soil under three vegetation covers of an Argissolo Vermelho-Amarelo of the Dry Forest Zone of Pernambuco. An experiment was conducted evaluating 25 isolates, aside from 5 uninoculated controls with 0; 309; 60; 90 and 120 kg ha-1 N, and a treatment inoculated with the SEMIA 6152 strain. The first cut was performed 45 days after inoculation and a second and third cut after 45-day-intervals. Shoot N content was quantified at all cuts. Shoot dry mass was affected by N rates at all cuts. Shoot dry mass increased from the first to the second cut in inoculated plants. There was no difference between rhizobial isolates from the different plant covers for any of the variables. Most variables were significantly and positively correlated.

scholarly journals Energy partitioning of pregnant and lactating rabbit fed combination of concentrate and stylosanthes hamata hay

2020 ◽  
Vol 46 (1) ◽  
pp. 94-100
Author(s):  
D. T. Tsavkar ◽  
M. Y. Latu ◽  
D. T. Tsavkar ◽  
A. K. Olutunmogun ◽  
P. P. Barje ◽  
...  
Keyword(s):  
New Zealand ◽  
Reference Data ◽  
Energy Partitioning ◽  
Nutritional Requirement ◽  
Digestible Energy ◽  
Stylosanthes Hamata ◽  
Pregnancy And Lactation ◽  
Dietary Treatments

The study was carried out to examine energy partitioning of pregnant and lactating rabbit offered levels of concentrate and Stylosanthes hamata hay to ascertain whether it meets their high reproductive and nutritional requirement. Forty-eight nulliparous crossbred does (New Zealand White x California and California x Chinchilla breeds) of eight months old were allocated to four dietary treatments in a completely randomised design. During gestation, 150 g/doe/day concentrate and Stylosanthes hamata hay combinations (30:120g, 60:90g, 90:60g and 120:30g) was offered while 350 g/doe/day concentrate and Stylosanthes hamata hay combinations (70:280g, 140:210g, 210:140g and 280:70g) was offered during lactation. Estimations of digestible energy during pregnancy and lactation were carried out and reference data were used to calculate forDE DE DE DE BalanceDE and DE /LW0.75. req, m, fg, macc, req Results obtained showed non-significant (P>0.05) difference among 90:60 and 120:30% concentrate and Stylosanthes hamata hay combinations in terms of DM DE DE DE intake, intake, req, fg, DE BalanceDE and DE /LW0.75, but were significantly (P<0.05) higher than 30:120 and macc, req 60:90% concentrate and Stylosanthes hamata hay combinations. Rabbit in the 4th week of pregnancy had significantly (P<0.05) higher DE DE DE DE BalanceDE and intake, req, fg, macc, DE /LW0.75 than does in the 2nd week of pregnancy. During lactation, all parameters showed req non-significant (P>0.05) difference. Therefore, the diet combinations were sufficient to provide adequate digestible energy for the physiological needs of does during pregnancy and lactation.

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