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Studies on Heading Characteristics of Primary and Secondary Tillers in Rice(Oryza sativa L.) : I. Influence of leaf cutting on heading characteristics of primary and secondary tillers
Delayed heading Heading date Leaf cutting treatment Main stem Panicle initiation
2009/7/31
The purpose of this experiment was to identify the cause of the differences in the heading date and the time of panicle differentiation among individual tillers in a plant. Three varieties, Norin 1, N...
Sterility in Rice (Oryza Sativa L.) Subject to Drought during the Booting Stage Occurs not because of Lack of Assimilate or of Water Deficit in the Shoot but because of Dehydration of the Root Zone
Booting stage Degeneration of spikelet Dehydration Drought Oryza sativa L
2009/7/30
In rice plants a drought at the booting stage is the event most damaging to grain yield because it drastically increases sterility. Our objective was to establish what phosiological processes caused s...
Effects of Atmospheric Partial Pressure of Carbon Dioxide and Phosphorus Nutrition on the Ultrastructure of Rice (Oryza sativa L.) Chloroplasts
Carbon dioxide Chloroplast Mesophyll cell Rice Phosphorus Starch accumulation
2009/7/29
Rice plants were grown in artificially illuminated growth cabinets under combinations of atmospheric partial pressure of CO2 (35 vs. 70 Pa) and phosphorus (P) nutrition (3 vs. 300 μM) to examine their...
Association between Grain Shattering Habit and Formation of Abscission Layer Controlled by Grain Shattering gene sh-2 in Rice (Oryza sativa L.)
Abscission layer Germination rate Grain ripening Rice Oryza sativa L Shattering gene
2009/7/29
Rice garin shattering habit is closely associated with the abscission layer formed at the base of sterile lemmas (empty glumes). In the current study, the character expression of sh-2, one of the repr...
Morphological and Anatomical Characteristics of 'MC Type' Rice (Oryza sativa L.) Seedlings of cv. Basmati 217
Coleoptilar node root Coleoptile Deep seeding Mesocotyl
2009/7/29
To clarify the morphological features and internal structure of shoot apex of MC seedlings, one of the rice seedlings type, in relation to agricultural significance, an Indian rice cultivar, Basmati ...
Comparison of Water Use Efficiency of Paddy Rice (Oryza sativa L.) among Locations and Interannual Variation in Humid Areas : 1. Reliability of estimated canopy transpiration rate from meteorological and physiological data of the crop
Canopy resistance Evapotranspiration Leaf area index Penman-Monteith method Rice Stomatal conductance
2009/7/29
The transpiration rate is affected not only by meteorological but also by physiological and structural factors of the crop. Our objectives were to develop a method of estimating the transpiration rate...
Characteristics of Mesocotyl and Internode Growth of Cultivated Rice (Oryza sativa L.) and Wild Taxa of Oryza
Ancestral species Coleoptile Core collection Internode elongation Mesocotyl Rice
2009/7/29
The characteristics of mesocotyl and internode growth of rice cultivars (Oryza sativa L.) and wild taxa of Oryza were investigated using the following cultivars and strains : (1) 260 IRRI's core coll...
Gas Exchange through the Slit between the Lemma and the Palea in the Rice (Oryza sativa L.) Floret before Anthesis
Anther dehiscence Anthesis Floret opening Gas exchange Respiration Rice (Oryza sativa L.) Starch decomposition
2009/7/29
Gas Exchange through the Slit between the Lemma and the Palea in the Rice (Oryza sativa L.) Floret before Anthesis.
Effects of Water-Saving Irrigation and Nitrogen Fertilization on Yield and Yield Components of Rice (Oryza sativa L.)
Nitrogen application Rice Sprinkler intermittent irrigation Water use efficiency
2009/7/29
The effects of nitrogen (N) application (32, 72 and 112 kg N ha-1 in 2000, and 32, 92 and 152 kg N ha-1 in 2001) and water-saving irrigation and their interaction on grain yield and yield components o...
Enhancement of Rice Leaf Photosynthesis by Crossing between Cultivated Rice,Oryza sativa and Wild Rice Species,Oryza rufipogon
Leaf photosynthesis Oryza rufipogon Oryza sativa Rice Rubisco Rubisco activase Wild rice species
2009/7/29
To study whether wild rice species have genes that may increase potential photosynthetic capacities of rice cultivars, we generated BC2 populations by reciprocally backcrossing Oryza rufipogon (W630)...
Sterility of Thermo-Sensitive Genic Male Sterile Line,Heterosis for Grain Yield and Related Characters in F1 Hybrid Rice (Oryza sativa L.)
Dry matter F1 hybrid Grain yield Heterosis Sterility
2009/7/28
The thermo-sensitive genic male sterile (TGMS) T29s line was sterile when exposed to daily mean temperatures of 24.1°C or above during the critical stage (from 15 to 11 days before heading). It was co...
Morphological Characterization of the Seedlings of Short-root Mutant LM10 Selected from Rice (Oryza sativa L., cv. IR8)
Mutant Oryza sativa L Photomorphogenesis Rice Root Short-root
2009/7/27
We report the characterization of seedlings of LM10 which is one of the four short-root mutants derived from an M2 population of rice (Oryza sativa L., cv. IR8) seeds treated with NaN3. The morphologi...
Ultrastructure of Antipodal Cells of Rice (Oryza sativa) after Anthesis, as Related to Nutrient Transport in Embryo Sac
Antipodal cell Lobe-shaped nucleus Oryza sativa Ultrastructure Wall ingrowth
2009/7/27
In a rice embryo sac, there is an antipodal mass located at the opposite side of the micropyle, directly adjoining nucellar cells. Immediately after anthesis, the antipodal cells are characterized by...
Effects of Deep Water Treatment on the Growth of Culms and the Lodging Resistance in Japonica Type Paddy Rice (Oryza sativa L.) Cultivars
Breaking strength Deep water treatment Internode Lodging resistance Lysigenous aerenchyma
2009/7/27
We carried out this experiment to clarify the growth of culms of Japonica type rice cultivars under deep water conditions with special reference to lodging resistance of culms. We used four Japonica ...
Promotion of Seedling Growth of Seeds of Rice (Oryza sativa L.cv.Hitomebore) by Treatment with H2O2 before Sowing
Ascorbate peroxidase Growth of young seedling Hydrogen peroxide treatment Reactive oxygen species Rice cultivar
2009/7/27
High germinability of seeds and establishment of young seedlings in rice (Oryza sativa L.) are necessary for direct seeding in paddy fields. We investigated whether germinability and seedling growth w...