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SUBJECT: oryza; physiology; oryza sativa; developpement biologique; fisiologia

POSTED TO: Bulletin of the Hiroshima Agricultural College (Japan) [0440-8772]

SUBJECT: caracteristicas agronomicas; estadistica; oryza; statistique; oryza sativa

POSTED TO: Research Reports of the Kochi University. Agricultural Science (Japan)

SUBJECT: germplasm conservation; conservation du materiel genetique; oryza sativa; japan; genetic resources/ registration

POSTED TO: Miscellaneous Publication of the Hokkaido National Agricultural Experiment Station (Japan) [0386-2224]

The rice leaf bug, Trigonotylus caelestialium Kirkaldy, is reported for the first time on rice in Italy. It was detected thanks to the following symptoms: leaf blade of seedlings shows one or more parallel series of small windowings in lines across the width of the leaf, with intact epidermis. The life cycle of the rice leaf bug and the knowledge in Japan are related, being there an insect wel ...

SUBJECT: piante ospiti; oryza sativa; fenologia; japan; germen

POSTED TO: Informatore Fitopatologico (Italy) [0020-0735]

The rice-duck farming system is an organic agriculture system carried out by about 10,000 rice farmers in Japan. In this system, rice ducks are left in a paddy field for about 2 months(beginning 2 weeks after transplanting to several days before heading). Rice-ducks are effective in weed and insect pest control resulting in a stable yield without the need for using herbicides and insecticides. ...

SUBJECT: oryza sativa; japan; rendement des cultures; control de plagas; organic agriculture

POSTED TO: Journal of ISSAAS [International Society for Southeast Asian Agricultural Sciences] (Philippines) [0859-3132]

Direct sowing with recycled-paper mulch has the constraint of an unstable seedling emergence, but has the possibility of substantial labor saving in organic rice cultivation. Direct sowing with recycled-paper mulch was conducted towards overcoming its defects using cultivar Koshihikari. The percentage of emergence was higher than 70%, and that of established hills was lower than 15% because of ...

SUBJECT: oryza sativa; japan; siembra directa; direct sowing; semis direct

POSTED TO: Journal of ISSAAS [International Society for Southeast Asian Agricultural Sciences] (Philippines) [0859-3132]

In Japan, in order to uplift the extremely lower ratio of food self-sufficiency (40%, 2007), an increase of crops converted from paddy rice has been conducted with the emphasized intention along the context of rice policy reform based on the higher multi-utilization of paddy field in the recent years. However, the production of converted crops such as wheat and barley, feed grain (maize) and s ...

SUBJECT: seguridad alimentaria; oryza sativa; politique; production; japan

POSTED TO: Journal of ISSAAS [International Society for Southeast Asian Agricultural Sciences] (Philippines) [0859-3132]

It is well known that rice plant is very sensitive to high temperature at flowering and booting stages. However, most of the previous studies were focused on only flowering stage or booting stage, and a standard phenotyping method was not established. This study is aimed to seek a good method for evaluation fo the heat tolerance of rice genetic resources and breeding lines at different growth ...

SUBJECT: republica de corea; oryza sativa; japan; korea republic; pakistan

POSTED TO: Philippine Journal of Crop Science (Philippines) [0116-463X]

Two types of virus particles (spheres 30 and 35 nm) were fequently isolated from downy mildew-diseased rice plants (Honkura et al. 1983). Both virus particles were found abundantly in thin sections of oospores and mycelia of the pathogenic fungus, Sclerophthora macrospora, in diseased rice plants, but not in the plant cells. The particles were randomly scattered or densely compacted in the cyt ...

SUBJECT: mildio; oryza sativa; japan; ultraestructura; sclerophthora macrospora

POSTED TO: Journal of Phytopathology (Germany, F.R.) [0931-1785]

SUBJECT: japan/ environmental temperature; oryza sativa; genetic variation; granos; variacion genetica

POSTED TO: Japanese Journal of Breeding (Japan) [0536-3683]