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Effect of Panicle Size on Grain Yield of IRRI-Released Indica Rice Cultivars in the Wet Season
Grain yield Panicle size Solar radiation Rice Wet season
2009/7/29
Grain yield under wet season (WS) conditions has gradually received more attention due to looming scarcity of irrigation water, which limits the area for planting to flooded lowland rice in the dry se...
Historical Changes in Grain Yield and Photosynthetic Rate of Rice Cultivars Released in the 20th Century in Tohoku Region
Grain filling Nitrogen application Oryza sativa L. Photosynthesis Rice Yield improvement
2009/7/28
A retrospective analysis of the physiological basis of genetic yield improvement should provide us a direction for future yield improvement. The objectives of the present study were to evaluate the ch...
Root System Morphology of Four Rice Cultivars:Response of Different Component Roots to Nitrogen Application
Adaptability Ecotype Heavy manuring Lateral root Nitrogen Phenotypic plasticity Rice Root system
2009/7/28
A crop root system morphology can be determined by the development of different component roots, such as nodal root axes and their concomitant lateral roots of two different types ; long, large in dia...
Comparisons of Root Growth in Indica-Japonica Hybrid and Japonica Type Rice Cultivars Using Leaf-Cutting Method
Indica-japonica hybrid Leaf-cutting method Rice Root
2009/7/24
Comparisons of Root Growth in Indica-Japonica Hybrid and Japonica Type Rice Cultivars Using Leaf-Cutting Method.
Studies on Salt Tolerance in Korean Rice Cultivars : II. Effects of NaCl treatment on sodium and potassium ions concentration in leaf blade, leaf sheath and root of rice plants
Cultivar difference Oryza sativa L. Potassium concentration Rice Salt tolerance
2009/7/24
The mechanism of cultivar difference in salt tolerance was investigated with Korean rice cultivars, paying special attention to the relationship between sodium (Na) and potassium (K) ions in various ...
Growth of Three Rice Cultivars (Oryza sativa L.) under Upland Conditions with Different Levels of Water Supply
Grain yield Harvest index Upland rice Water productivity Water supply Yield potential
2009/7/24
Upland rice production has great potential as a water-saving form of agriculture if yield can be increased and stabilized across a range of environments with different levels of water supply. The obje...
Physicochemical Properties of Japanese Native Red-Kerneled Non-glutinous Rice Cultivars of the Japonica Type
Amylographic characteristics Amylose Japonica type Protein Red-kerneled rice Texture
2009/7/23
To elucidate the physicochemical properties of Japanese native red-kerneled non-glutinous rice of the Japonica type cultivated without fertilizer application, a comparative study with 30 cultivars was...
Comparison of Root Systems among Rice Cultivars by Simplified Investigation Methods
Cultivar difference Lodging tolerance Rice Root distribution Root profile Root projection area
2009/7/23
Simplified investigation methods of root systems in Japanese and American rice cultivars were examined using photographic recording methods and image analysis on a personal computer. In order to photo...
Genotype×Environment Interaction for Early-maturing Rice Cultivars with High Palatability in Northern Kyushu:II. Heading date and culm length
Breeding Culm length Finlay-Wilkinson's method Genotype×environment interaction Heading date
2009/7/23
Genotype×environment interactions of heading date and culm length in rice were estimated for cultivars with high palatability. Genotype×year, genotype×location, genotype×amount of fertilizer and genot...
Genotype×Environment Interaction for Early-maturing Rice cultivars with High Palatability in Northern Kyushu:I. Yield
Adaptability Breeding Finlay-Wilkinson's method Genotype×environment interaction Palatability
2009/7/23
Genotype×environment interactions of grain yield in rice were estimated for early-maturing cultivars with high palatability. Genotype×year and genotype×location interaction of yield were significant....
Genetic Diversity of Cambodian Rice Cultivars
Genetic diversity Indica Cambodian cultivars SSRs
2009/7/23
Genetic Diversity of Cambodian Rice Cultivars.
Genotypic Variations in Responses of Lateral Root Development to Transient Moisture Stresses in Rice Cultivars
Aerenchyma Aerobic rice Chromosome segment substitution lines Drought Lateral root production O2 deficiency
2009/7/23
Soil water regimes under field conditions inevitably tend to fluctuate ranging from drought to waterlogging. Genotypes that adapt better to such changing hydrologic conditions are assumed to have the ...
Relationship between Shoot Elongation and Dry Matter Weight During Submergence in Oryza sativa L. and O. glaberrima Steud. Rice Cultivars
African rice Flash floods Flood tolerance Oryza glaberrima Oryza sativa Shoot elongation Sub-1 Submergence
2009/7/23
Rice plants are damaged by flash floods with a rapid increase in water level caused by a heavy rain. However, rice plants cope with the flash floods either by an “escape strategy” involving rapid shoo...
Differential Developmental Pattern of Tiller Bud in Rice Cultivars
Leaf emergence Leaf initiation Rice Tiller bud Varietal difference
2009/7/22
The initiation of leaves and the width of tiller buds on rice plants were compared between japonica type cv. Musashikogane, Lemont and indica type cv. IR36, Takanari. The number of initiated leaves wa...
Rice Cultivars with Higher Sucrose Synthase Activity Develop Longer Coleoptiles under Submerged Conditions
α-Amylase Coleoptile length Rice (Oryza sativa L.) Submergence Sucrose synthase
2009/7/21
Sucrose synthase, which catalyzes uridine diphosphate (UDP)-dependent cleavage of sucrose into fructose and UDP-glucose, is induced by oxygen deficiency in rice seedlings and is considered to play an...