Search Results

Results 1 - 10 of 117,598

Smale, Melinda, Byerlee, Derek, Jayne, Thom. 2011-05-01

Access the full text

Agrovoc Terms :

logistics; poor farmers; urban consumers; cereal production; agricultural extension; soil quality; crops; farm; farming systems; legumes; cotton; productivity growth; maize technology; seed companies; conservation tillage; wheat; kari; grain trade; identity; soil fertility; food staples; thailand; farm revenues; maize seed; degradation; agricultural inputs; variety improvement; plant breeding; production systems; yellow maize; agricultural economy; private seed sector; farmer; agricultural productivity; grain; seed; rainfed areas; production gains; maize producers; hybrid maize; cimmyt; food prices; seed company; animals; livestock products; maize marketing; tillage; integrated pest management; food consumption; sasakawa global 2000; ifpri; training; crop management; agricultural input; maize yields; nongovernmental organizations; hungry season; crop waste; food; white maize; higher protein; food supplies; household food security; national research; conservation farming; crop management practices; crop; rice research; produce; high yields; fertilizer subsidies; seed production; consumer welfare; maize plants; field crops; seeds; tariffs; food production; harvests; agricultural university; germplasm; regional markets; seed laws; maize revolution; genetic improvements; grain markets; resistance to disease; international maize and wheat improvement center; agricultural intensification; farm households; urbanization; organic matter; household survey; growing season; food insecurity; large farm; manure; t&v system; structural adjustment; fertilizer; international agricultural research; maize productivity; united nations; food policy; livestock; market development; crop residues; pesticide; maize imports; fao; produce food; infrastructure; grain yields; rice; spacing; population; technology adoption; soils; international food policy research institute; market efficiency; certified seed; price volatility; bread; seed system; food requirements; indicators; green revolution; harvest; research organizations; grain reserves; farms; agriculture; monoculture; land productivity; international agricultural research centers; hybrid seed; crop production; international rice research institute; pesticide use; agriculture organization; rice yields; investment; food crop; animal traction; farmer organizations; yield response; food security; markets; land preparation; south africa; farm work; cassava; farming; poorer farmers; cross-pollination; small-scale farmers; male farmers; maize hybrids; weeding; soil management; seed enterprise; development research; potatoes; agricultural growth; usaid; farmland; food policy research; fertilizers; women farmers; maize production; maize; seed sector; fertilizer markets; agricultural economics; biodiversity; smallholder maize production; maize supply; agricultural research services; planting; land use; maize research; lands; food marketing; commercial seed; capacity building; maize grain; seed certification; research impact; food grain; hybrid vigor; average yields; cultivation; post harvest losses; rural development; corn belt; maize varieties; national food security; herbicides; improved seed; fertilizer use; agroforestry; extension agents; certification requirements; iita; private seed companies; staple foods; maize surplus; organic manure; breeding research; corn; household income; crop yields; hybrids; fertilizer subsidy; poor soil fertility; fertilizer supply; seasons; variety release; farming systems research; germplasm improvement; farmers; pest management; agricultural science; technology; recycling; agricultural policy; hungry; seed industry; budgets; populations; commercial farmers; mexico; cereals; access to credit; maize exports; intercropping; agricultural development; animal feed; food products

Abstract :

There have been numerous episodes of widespread adoption of improved seed and long-term achievements in the development of the maize seed industry in Sub-Saharan Africa. This summary takes a circumspect view of technical change in maize production. Adoption of improved seed has continued to rise gradually, now representing an estimated 44 percent of maize area in Eastern and Southern Af ...

F., Hofmann, R., Epp, A., Kalchschmid, L., Kruse, U., Kuhn, B., Maisch, E., Müller, S., Ober, J., Radtke, U., Schlechtriemen, G., Schmidt, W., Schröder, W., v. d. Ohe, R., Vögel, N., Wedl, W., Wosniok. Environmental sciences Europe, 2190-4707. 2008-10. German.

Access the full text

Type :

Journal Article

Agrovoc Terms :

conservation areas; transgenic plants; butterflies; pollen; bacillus thuringiensis; corn; probability; topography; pollen flow; foraging; surveys; samplers; monitoring; summer; precautionary principle; honey bees; collectors; pellets; adverse effects; organic foods; statistical analysis; wind

Abstract :

Aim and Background Precautionary regulations for the production of genetically modified crops (Gentechnik-Pflanzenerzeugungsverordnung, GenTPflEV 2008) provide isolation distances for the cultivation of genetically modified maize – Bt-maize – in the vicinity of conventional maize cultivation (150 m) as well as of organic maize cultivation (300 m). Nature reserves are not included. The ...

Hoover, R., Manuel, H.. Journal of cereal science, 0733-5210. 1996. English.

Type :

Journal Article

Agrovoc Terms :

gelation; thawing; syneresis; x-ray diffraction; swelling; heat treatment; viscosity; alpha-amylase; freezing; corn starch; pasting viscosity; water content; amylose; hydrochloric acid; stability; hydrolysis

Abstract :

Normal maize, waxy maize, dull waxy maize and amylomaize V starches were heat treated at 100 degrees C for 16 h at a moisture content of 30%. The results showed that the X-ray intensities of the major d-spacings of all starches increased on heat-moisture treatment (waxy maize > normal maize > dull waxy maize > amylomaize V). This treatment decreased the apparent amylose content (amylomaize V > ...

Sa, K.J., Kangwon National University, Chuncheon, Kim, J.A., Kangwon National University, Chuncheon, Park, K.J., Maize Experiment Station, Kangwon Agricultural Research and Extension Services, Hongcheon, Park, J.Y., Maize Experiment Station, Kangwon Agricultural Research and Extension Services, Hongcheon, Goh, B.D., Maize Experiment Station, Kangwon Agricultural Research and Extension Services, Hongcheon, Lee, J.K., Kangwon National University, Chuncheon. Korean Journal of Breeding Science, 0250-3360. dec2011. Korean.

Type :

Directory

Agrovoc Terms :

waxy and normal maize inbred; estructura de la poblacion; population structure; genetic diversity; ssr marker; structure de la population

Abstract :

Maize is divided into two types based on the starch composition of the endosperm in the seed, normal maize(or non-waxy maize) and waxy maize. In this study, genetic diversity and population structure were investigated among 80 waxy maize and normal inbred lines(40 waxy maize inbred lines and 40 normal maize inbred lines) using 50 SSR markers. A total of 242 alleles were identified at all the l ...

Punyalue, Adirek, Benjavan Rerkasem, Jedsada Jongjaidee, Sansanee Jamjod. Agriculture and Agricultural Science Procedia, 2210-7843. 2015. English.

Access the full text

Type :

Journal Article

Agrovoc Terms :

zea mays; highlands; corn; cowpeas; nitrogen; relay cropping; nitrogen balance; farmers; grain yield; maize; residue; burning; wet season; legume; lablab; crop residues; weeds; nitrogen fixation

Abstract :

Maize production in Thailand has moved to the highlands, where residues of crop and weeds are burned to prepare land for the new crop. This study was done to compare relay cropping of maize with legumes to reduce burning in the highlands at Pang-da Royal Agriculture Station. The experiment was conducted with 3 maize-legume relay treatments (maize + lablab, maize + ricebean and maize + cowpea) ...

Riera-Lizarazu, O., Rines, H.W., Phillips, R.L.. Theoretical and applied genetics, 0040-5752. 1996. English.

Type :

Journal Article

Agrovoc Terms :

avena sativa; zea mays; cytogenetic analysis; chromosome transmission; chimerism; addition lines; hybrids; partial self compatibility; cytogenetics; nucleic acid hybridization; genomic in situ hybridization; restriction fragment length polymorphism; intergeneric hybridization; chromosome addition; chromosome elimination; self compatibility; chromosome mapping; chromosomal chimeras; wide hybridization; haploidy

Abstract :

In cereals, interspecific and intergeneric hybridizations (wide crosses) which yield karyotypically stable hybrid plants have been used as starting points to widen the genetic base of a crop and to construct stocks for genetic analysis. Also, uniparental genome elimination in karyotypically unstable hybrids has been utilized for cereal haploid production. We have crossed hexaploid oat (2n=6x=4 ...

Rusinamhodzi L., Corbeels M., Nyamangara J., Giller K.E.. Field crops research. 2012.

Access the full text

Type :

Journal Article

Agrovoc Terms :

mozambique;; securite alimentaire; pennisetum glaucum; extensification; rendement des cultures; culture intercalaire; vigna unguiculata; facteur climatique; sorghum bicolor; rentabilite; analyse economique; systeme de culture; intensification; zea mays; legumineuse a grains

Abstract :

Many farmers in central Mozambique intercrop maize with grain legumes as a means to improve food security and income. The objective of this study was to understand the farming system, and to evaluate the suitability of maize-legume intercropping to alleviate the biophysical and socio-economic constraints faced by smallholder farmers in Ruaca and Vunduzi villages, central Mozambique. To achieve ...

World Bank. 2009-12-31; World Bank.

Access the full text

Agrovoc Terms :

trip; labor markets; variable costs; price policies; urban consumers; transport services; opportunity costs; road network; price differential; fixed costs; taxation; price trend; root crops; consumers; long-run elasticities; supply chain; police; market conditions; market prices; vehicle; transport infrastructure; maize market; tariff barriers; maize deficit; wheat; price increase; maize purchases; food staples; comparative advantage; household surveys; price incentives; transport corridors; potential output; transport charges; yellow maize; climate change; maize products; agricultural productivity; infrastructure investment; high transport; trade policy; maize producers; market position; farm size; sales; food prices; livestock products; agricultural commodities; sale; transport sector; transportation; maize marketing; world markets; population growth; maize prices; food consumption; marketing; urban consumption; food deficit; fuel efficiency; ifpri; purchasing maize; wholesale prices; trade liberalization; fuel costs; food surplus; stocks; maize yields; urban markets; rainy season; food shortages; white maize; food consumption patterns; transport costs; grains; crossing; rural routes; population densities; labor market; planting time; surplus food; food production; fuel taxes; economic sector work; fruits; grain markets; market linkages; food crops; maize policy; food insecurity; expenditures; public partnerships; agricultural products; storage capacity; road maintenance; agricultural commodity; gdp per capita; maize imports; petroleum products; cooking; railroads; marketing costs; rice; competitiveness; fair; household size; road; price volatility; expenditure; wholesale maize; gdp; steel; wto; competitive advantage; price changes; hunger; food expenditures; auctions; routes; agriculture; price control; tires; world market; travel time; crop production; maize harvest; world food program; rural roads; total costs; rail investments; farmer organizations; bananas; food security; cassava; farm income; income; consumption levels; input prices; consumer prices; maize exporter; food distribution; production costs; spread; fuels; wfp; output per capita; agricultural growth; positive effects; demand for food; financial crisis; vehicle operating; profit margins; per capita income; international market; maize production; maize; technical assistance; sweet potatoes; world trade organization; export maize; means of transport; tax; supply chains; surplus; multiplier effects; fuel; crop income; calorie intake; warehouse; true; food supply; maize producing areas; rail services; small farm; free trade; elasticities; staple foods; rail; maize surplus; sorghum; corn; household income; transportation costs; price margins; wealth; mode of transportation; vehicle operating costs; elasticity; transport users; transport; fuel prices; aggregate demand; food price dilemma; dumping; purchasing; exports; vegetables; agricultural policy; market access; lamb; market integration; meat; cereals; market demand; tea; average variable costs; trucks; export crops; animal feed; food products; travel distances

Abstract :

Maize is the most important staple food in the Eastern Africa region and the most widely traded agricultural commodity. Therefore, the performance of grain markets has a significant impact on people's welfare, particularly the poor, and is critical to inducing pro-poor growth in Kenya, Tanzania, and Uganda, i.e. the countries under review in this report. Marketing costs at the borders w ...

Habtamu Admasu, Reddy, M.S., Teshale Alemu, Jibril Mohamed. 1. Procedings of the Conference of the Agronomy and Crop Physiology Society of Ethiopia, Addis Abeba (Ethiopia), 30-31 May 1995; 1996; ACPSE English.

Type :

Conference

Conference :

1. Procedings of the Conference of the Agronomy and Crop Physiology Society of Ethiopia, Addis Abeba (Ethiopia), 30-31 May 1995

Agrovoc Terms :

ethiopie; etiopia; systeme de culture; sistemas de cultivo; aridoculture; zea mays; cultivo en tierras aridas

Abstract :

In peasant subsistence agriculture use of appropriate cropping systems enable the farmers to use natural resources efficiently. Lack of appropriate cropping systems to suit maize production was identified as one of the major production constraints in the semi-arid areas of Ethiopia. To alleviate this problem the possibility of intercropping, relay cropping or alley cropping of maize with effic ...

Waddington, S.R., Karigwindi, J., Chifamba, J.. 2007; http://www.academicjournals.org/ajar/abstracts/abstracts/abstracts2007/Aug/Waddington%20et%20al.htm. English.

Access the full text

Type :

Journal Article

Agrovoc Terms :

groundnut; on-farm research; longer-term; soil infertility; crop rotation; sustainability; experiment; zimbabwe; sub-humid zone; maize

Abstract :

An experiment was conducted on four smallholder farms and on-station in the sub-humid zone of northeast Zimbabwe for 12 years to assess how the rotation of groundnut with NPK-fertilized and unfertilized maize affected the productivity and sustainability of this common smallholder cropping system. At the sandy-soil Domboshava station, maize grain yield declined over 12 years of continuous maize ...

Save top 1000 records as: AGRIS_AP CSV RIS EndNote(XML)