An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
... Effects of sulfuric acid on crop yields and on some physical and chemical properties of a calcareous soil were investigated in a field experiment from 1947 through 1952. On cotton plots, the treatments consisted of applications of irrigation water containing no acid (pH 8.3), water acidified to pH 6, and water acidified to pH 2.3. Cotton was grown five season followed by sesbania the sixth season. ...
... To discover whether plasticity in resource allocation differs among related species, we examined variability in seed mass, seeds per fruit, ovules per flower, fruit survivorship, and fruits per unit plant size in Sesbania macrocarpa, S. drummondii, and S. vesicaria. The species differed in the amounts of variability of the different components of yield, and seed mass was not always the least varia ...
... Eight of 104 fast‐growing strains of Rhizobium sp. (Sesbania) tested possessed a hydrogen recycling system. Depression of uptake hydrogenase occurred in poor as well as in rich carbon media. A statistically significant increase (> 22%) in total plant nitrogen content and dry matter yield was observed by the inoculation of hup+ strains over hup‐ strains. ...
... The expression of plant genes during symbiosis of Sesbania rostrata with Rhizobium sp. and Azorhizobium caulinodans was studied by comparing two-dimensional PAGE patterns of in vitro translation products of poly(A)+ RNA from uninfected roots and stems with that of root and stem nodules. Both types of nodules are essentially similar, particularly when stem nodules are formed in the dark. We detecte ...
Oryza sativa; Sesbania; green manures; plant physiology; agronomic traits; Philippines
Abstract:
... When incorporated for lowland rice (Oryza saliva L.), the agronomic efficiency of green manure N exceeding 100 kg ha⁻¹ is low. Apparent N recovery and physiological efficiency of green manure N, ranging to 200 kg N ha⁻¹ were determined on a fine, mixed, isohyperthermic Aerie Tropaqualf in the Philippines. Sesbania sp. accumulated 100 kg N ha⁻¹ in 48 d and 160 kg N ha⁻¹ in 60 d. Nitrogen uptake (NU ...
... When the stems of Sesbania rostrata, growing vigorously in nutrient solution, are inoculated with Azorhizobium caulinodans ORS 571 and deprived of nitrate, hundreds of nodules with active N₂ fixation (acetylene reduction) develop on each stem within 10 d. The numbers of nodules that develop are not affected by increasing the nitrate concentration in the medium from 0 to 9 mM. However, as the nitra ...
... The growth and nitrogenase activity of stem nodules of Sesbania rostrata Brem were strongly influenced by the humidity surrounding the nodule. Nodules developed under high humidity showed the fastest rates of growth and the highest specific nitrogenase activity (determined by acetylene reduction). Development of stem nodules in both the light and dark was similar and showed a similar lowering of g ...
... In tropical rice (Oryza sativa L.) lowlands, soil NO₃ is lost during the transition from the dry to the wet season. To understand how soil and crop management influences NO₃ loss, we examined NO₃ dynamics during a 2-yr period in an Alfisol in the Philippines: weedy, weed-free, and frequently tilled main plots during the February to May dry season (DS), and Sesbania rostrata (Brem. & Oberm), mungbe ...
... The occurrence and distribution of Azorhizobium and Rhizobium strains that induce stem nodulation of Sesbania rostrata were determined in four vegetation zones in Senegal. Based on tests with 16 Rhizobium and 10 Azorhizobium strains nodulating S. rostrata, a method was devised to distinguish among the strains. In all vegetation zones, members of both genera were more abundant in rhizosphere than n ...
... The performance of Sesbania rostrata varies widely from site to site. This makes it difficult to predict the N yield and biomass of this plant in marginally productive soils, and to arouse the interest of farmers in green manure technology. Three consecutive pot experiments were conducted in a greenhouse at the International Rice Research Institute (IRRI) to evaluate growth, nodulation, N2 fixatio ...
... Upon infection of the tropical legume Sesbania rostrata with Azorhizobium caulinodans ORS571, nodules are formed on the roots as well as on the stems. Stem nodules appear at multiple predetermined sites consisting of dormant root primordia, which are positioned in vertical rows along the stem of the plant. We used the differential display method to isolate and characterize three cDNA clones (diffe ...
interspecific variation; Mollisols; rice soils; nitrogen content; Entisols; Ultisols; nitrogen fixation; submergence; rice; chemical constituents of plants; Aeschynomene; green manures; Sesbania; drought; flooded conditions; soil fertility; photoperiod; Inceptisols; lowlands
Abstract:
... Poor adoption of sustainable pre-rice green manure technology by lowland farmers is frequently associated with unreliable legume performance under adverse environmental conditions such as marginal soils, short photoperiod, and unfavorable hydrology. A series of field and microplot experiments were conducted at the International Rice Research Institute (IRRI) in 1991 and 1992 to screen and evaluate ...
... Rhizobia isolated from Acacia or Sesbania belong to several taxonomic groups, including the newly described species Sinorhizobium saheli, Sinorhizobium teranga, and the so-called cluster U. A collection of strains belonging to these different groups was analyzed in order to determine whether the host range of a strain could be correlated with various molecular nodulation determinants. Nodulation t ...
... Indian sandalwood (Santalum album), a commercially important root hemi-parasitic angiosperm, was partnered singly in pot culture with one of three nitrogen-fixing legumes or a eucalypt host. Xylem (tracheal) sap of stems of host and parasite and ethanolic extracts of endophytic tissue of haustoria of the parasite were analysed for amino acids, organic acids and sugars to determine which sets of so ...
osmosis; nitrogen fixation; nitrogen content; Eucalyptus camaldulensis; Acacia; gas exchange; host plants; water use efficiency; transpiration; Sesbania; leaf water potential; photosynthesis; diurnal variation; Santalum album; leaves
Abstract:
... This paper examines foliar nitrogen (N) levels, photosynthesis, transpiration, water use efficiency and tissue water relations of the xylem-tapping root hemi-parasite Santalum album in pot culture with various N(2)-fixing woody hosts, a non-fixing host (a eucalypt), or in the absence of a host. Foliar N concentrations of Santalum were significantly greater than corresponding hosts and higher when ...
... The influence of different depths of repacked soil cores on changes in N transformation processes was studied with a subtropical semi-arid soil amended with 100 mg N kg(-1) of Sesbania green manure (GM) or fertilizer (NH(4))(2)SO(4) for 35 days under flooded and nonflooded conditions. Shallow soil depth enhanced the rate of nitrification, particularly where aeration was impeded in flooded soils. H ...
Sesbania; animal manures; clay loam soils; cowpeas; cropping systems; field experimentation; mechanization; mineral fertilizers; mung beans; nutrient management; sandy clay soils
Abstract:
... A field study conducted for three years (1992–93 to 1994–95) at the Indian Agricultural Research Institute on a sandy clay loam shows that for sustained production in a rice-wheat cropping system integrated nutrient management involving both organic manures/residues and chemical fertilizers is a must. In control plots receiving no organic manures/residues but as high as 120 kg N ha –1 only 8 t ha ...
... Methane (CH4) emission from rice fields at Cuttack (State of Orissa, eastern India) has been recorded using an automatic measurement system (closed chamber method) from 1995-1998. Experiments were laid out to test the impact of water regime, organic amendment, inorganic amendment and rice cultivars. Organic amendments in conjunction with chemical N (urea) effected higher CH4 flux over that of chem ...
... The nodulation of S. herbacea was compared under flooded and non-flooded conditions in two different soils. One soil was from a flooded field in Sierra de Huautla, the native habitat of this legume, while the other soil was from a well-drained field in Cuernavaca, where rhizobia were found to nodulate the introduced S. herbacea plants. Nodulation of the plants was completely eliminated by flooding ...
Sesbania; adverse effects; cropping systems; fertilizer rates; field experimentation; green manures; legumes; nitrogen; nitrogen fertilizers; residual effects; rice; soil; soil fertility; straw; wheat; India
Abstract:
... Field experiments were conducted for two crop years at the Indian Agricultural Research Institute, New Delhi to study the effect of enriching wheat residue with legume residue on the productivity and nitrogen uptake of a rice-wheat cropping system and soil fertility. The incorporation of wheat residue had an adverse effect on the productivity of the rice-wheat cropping system. When it was incorpor ...
... Most double-crop grain farmers in South Asia remove or burn crop residue to facilitate seedbed preparation and to avoid possible yield reductions. This results in loss of soil organic matter (SOM) and nutrients. In this study, we determined whether incorporating wheat (Triticum aestivum L.) residue, rice (Oryza sativa L.) residue, and sesbania (Sesbania aculeta L.) green manure with urea fertilize ...
... As part of the restoration of degraded land south of the Sahara, an experimental study has been carried out on the germinative properties of the seeds of seven Sahelian leguminous species (Cassia obtusifolia, Cassia occidentalis, Indigofera astragalina, Indigofera senegalensis, Indigofera tinctoria, Sesbania pachycarpa and Tephrosia purpurea). Analysis of the effects of temperature, pretreatment a ...
... Four endemic species of Hawaiian plants were tested for their response to inoculation with a Hawaiian isolate of Glomus aggregatum (an arbuscular mycorrhizal fungus [AMF]) when grown in a native soil with or without P added to achieve different soil-solution P levels. The endangered species (Sesbania tomentosa [Fabaceae] and Colubrina oppositifolia [Rhamnaceae]) and two nonendangered species (Bide ...
... Some of the parameters that determine flooding resistance-and consequently habitat zonation-were investigated in four neotropical trees (Schizolobium parahyba, Sebastiania commersoniana, Erythrina speciosa and Sesbania virgata). The constitutive parameters of seeds (size, nature and amount of reserves) only partly influenced resistance to flooding, mainly through a high carbohydrate:size ratio. Pa ...
... Major improvements in the productivity of rice (L.) and wheat (L.) have occurred in South Asia since 1965–1966 when the Green Revolution began. However, after the 1980s, yield stagnated or declined. We analyzed grain yield trends, soil C, N, P, and K status, and P and K balances in a 14-yr rice–wheat experiment conducted at Punjab, India with 11 treatments comprised of various combinations of inor ...
... Forty-six Mesorhizobium strains associated with the leguminous plants Leucaena leucocephala and Sesbania herbacea in an uncultivated Mexican field were characterized using a polyphasic approach. The strains were identified as Mesorhizobium plurifarium based upon the close relationships with the reference strains for this species in PCR-based restriction fragment length polymorphism analyses, seque ...
... Field research conducted for 3 yr evaluated weed control in glyphosate-resistant soybean with glyphosate applied alone and in mixtures with reduced rates of the broadleaf herbicides acifluorfen, CGA-277476 (proposed name: oxasulfuron), chlorimuron, fomesafen, or lactofen. Barnyardgrass was controlled at least 95%% with glyphosate at 840 and 1,120 g ai/ha, and control was not antagonized with any o ...
... Phylogenetic analysis of 330 plastid matK gene sequences, representing 235 genera from 37 of 39 tribes, and four outgroup taxa from eurosids I supports many well-resolved subclades within the Leguminosae. These results are generally consistent with those derived from other plastid sequence data (rbcL and trnL), but show greater resolution and clade support overall. In particular, the monophyly of ...
Marshall, D. L.; Abrahamson, N. J.; Avritt, J. J.; Hall, P. M.; Medeiros, J. S.; Reynolds, J.; Shaner, M. G. M.; Simpson, H. L.; Trafton, A. N.; Tyler, A. P.; Walsh, S.
... BACKGROUND AND AIMS: Plastic responses to stress in components of reproduction can have important effects on plant fitness and can vary both within and between species. Responses may also depend on when in the life cycle stress occurs. Here, it is predicted that the timing of initiation of a stress, defoliation, would affect the pattern of plastic responses. These differences should occur because ...
Leucaena; Sesbania; animal manures; cowpeas; field experimentation; grain yield; green manures; iron; mung beans; rice; soil; wheat straw
Abstract:
... Field experiments were carried out for 3 years to assess the efficacy of organic manures (Sesbania, Leucaena, cowpea, mungbean, wheat straw and FYM) in enhancing the productivity of rice and in supplying Fe. Green manuring with Sesbania gave the highest rice yield, whereas the lowest yield was recorded with wheat straw incorporation. The concentration and uptake of Fe by rice was sig ...
... Thirty-four rhizobium strains were isolated from root nodules of the fast-growing woody native species Sesbania virgata in different regions of southeast Brazil (Minas Gerais and Rio de Janeiro States). These isolates had cultural characteristics on YMA quite similar to Azorhizobium caulinodans (alkalinization, scant extracellular polysaccharide production, fast or intermediate growth rate). They ...
... Experiment were conducted to evaluate the amount of nitrogen contributed by various organic fertilisers to the N-nutrition of a growing sugarcane crop, at the sugarcane research farm of National Cereals Research Institute (NCRI) in 1999 and 2000. The objective was to provide alternative source of nutrients in response to the scarcity and high cost of inorganic fertiliser often experienced by local ...
... Cover crops are important components of a sustainable crop-production system in plantation crops such as cacao (theobroma cacao), coffee (Coffee arabica), oil palm (Elaeis Spp.), and banana (Musa Spp.). Optimal growth of cover crops in plantation agriculture is determined by adaptability of crop species, light intensity reaching their leaf canopies, and their nutrient-use efficiencies, including t ...
... Green manuring especially in rice wheat cropping systems of many tropical and subtropical countries is regaining importance due to increased fertilizer costs and environmental considerations. Many species of Sesbania genus have been reported as potential green manure crops. The genus is not well characterized and there is a lot of ambiguity over the nomenclature and classification of the species o ...
... This study was conducted to evaluate the effects of intercropping Sesbania with dry-seeded rice up to its vegetative phase (Sesbania), mulching with wheat residue (mulch) and herbicides for managing weeds and optimising the yield of dry-seeded rice. The density of grass weeds was lower with the mulch at all stages of crop growth. Though the dry weight of grass weeds at 30 days after seeding (DAS) ...
... A field trial was conducted on an inceptisol to assess the effect of different bio-manures on sugarcane yield, cane quality, and changes in soil physico-chemical and microbial properties in plant–ratoon system. Seven treatments, viz. control, vermicompost, farmyard manure (FYM), biogas slurry, sulphitation pressmud cake (SPMC), green manuring with intercropped Sesbania, and recommended dose of NPK ...