Query : Journal_of_Tropical_Crop_Science

Results 1 - 10 of 14

Horticultural production in inter-tropical regions is a key factor for food security, because it is the main source of iodine, iron and vitamin A. Moreover, it is an economic tool related with international markets. This region is characterized by an annual rainfall higher than 1,200 mm, concentrated from December to April, making necessary the use of protection facilities. This work was condu ...

SUBJECT: rain; world markets; vitamin a; antioxidants; wind speed

POSTED TO: Acta horticulturae [0567-7572]

Uniformly 14C-labelled rice plants were grown up to maturity in a specially designed growth chamber. Chopped labelled straw (equivalent to 5 t/ha) was incorporated into the top soil of open cylinders set in the soils down to 45 cm. Each treatment was replicated 8 times. Soil cores were taken out at appropriate intervals and each year the entire soil done to 40 cm of 2 replicates was sampled. T ...

SUBJECT: sol tropical; materia organica; suelo tropical; matiere organique; marcacion con isotopos

POSTED TO: Philippine Journal of Crop Science (Philippines) [0115-463X]

Climatic conditions and cultural practices in the sub-tropical and tropical high-rainfall regions in which sugarcane is grown in Australia are conducive to rapid carbon and nitrogen cycling. Previous research has identified substantial exchanges of methane (CH₄) and nitrous oxide (N₂O) between sugarcane soils and the atmosphere. However, that research has been mostly short-term. This paper des ...

SUBJECT: saccharum; nitrogen fertilizers; nitrous oxide; fertilizer rates; soil-atmosphere interactions

POSTED TO: Agricultural and forest meteorology [0168-1923]

In the warm coast of Ecuador, cucumbers are grown in soil systems and open field. They present very low yields due to the long period of heavy rainfall and the presence of pests and diseases. The cultivation under protection and using a soilless system could be a solution to increase yield. The ontogeny of the Cucumis sativus cultivar 'Diamante' has been evaluated in four plots of 2400 m2 each ...

SUBJECT: rain; flowers; coasts; pests; antioxidants

POSTED TO: Acta horticulturae [0567-7572]

Seedling vigor is important for stand establishment in direct-seeded rice (Oryza sativa L.) culture. Genetic variation for, heritability of, and relationships among seedling vigor traits in 27 diverse rice cultivars and two segregating populations from crosses between low- and high-vigor cultivars were studied. Growth chamber slantboard tests were conducted at 18 degrees and 25 degrees C. In a ...

SUBJECT: caracteristicas agronomicas; temperature ambiante; procedencia; oryza sativa; temperatura ambiental

POSTED TO: Crop science (USA) [0011-183X]

In the Caribbean, valleys of the Andes, Oriental Plains and Andean region of Columbia, there is a great diversity of soils, soil quality and ways and hazards of soil degradation caused by large variations in parent materials, climatic conditions, biodiversity and the physiographic position of the land. Soil and environmental characteristics, soil use and soil degradation in Columbia are specif ...

SUBJECT: tropical soils; biodiversity; sugars; niches; alfisols

POSTED TO: Archives of agronomy and soil science [1476-3567]

Soils in the hot, arid topical regions are low in organic matter and fertility and are structurally poor. Consequently, these soils suffer on account of poor physical, chemical, and biological soil quality traits, leading to miserably low crop yields. Long-term use of conjunctive nutrient management and conservation tillage practices may have a profound effect on improving the quality of these ...

SUBJECT: potassium; arid lands; pennisetum glaucum; microbial biomass; students

POSTED TO: Communications in soil science and plant analysis [1532-2416]

SUBJECT: stems; plant production; foods; feuille; palm hearts

POSTED TO: HortScience : a publication of the American Society for Horticultural Science (USA) [0018-5345]

Banana is an important tropical crop and trading commodity in the world. However, Fusarium wilt is a severe risk for the world banana industry. Caused by the soil-borne fungal pathogen, Fusarium oxysporum f. sp. cubense (Foc), the disease is spreading insidiously and has been a source of enormous losses worldwide since the 1800s. Unfortunately, effective control methods are not available yet. ...

SUBJECT: mycelium; fusarium oxysporum f. sp. cubense; rna interference; essential genes; bananas

POSTED TO: Acta horticulturae [0567-7572]

African Crop Science Journal

Mpairwe, D.R. et al. [2002]

The study investigated the effect of intercropping cereals (maize, sorghum and wheat) with forage legumes (lablab and clover), planting methods and manure application on cereal grain and fodder dry matter yield and fodder nutritive value. Data collected over a period of three years, indicated that intercropping significantly (P<0.001) yielded more fodder (27%) but slightly depressed grain yiel ...

SUBJECT: cereals; yields; trifolium; farm yard manure; lablab