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Adaptive Regulation of Photosynthesis in Rice Plant to Weak Light Condition and the Contribution of Root Activity to Regulation Mechanism
Dark respiration Dry matter production Nitrogen absorption Photosynthesis Rice plant Root respiration
2009/8/6
Three cultivars of rice plants were grown in pots in a shading frame of 50% light intensity and on shadowed place at high altitude of 303m in hillside during the different period from tillering to ear...
Growth and Grain Yield of Wheat in Relation to Differences in Soil Groups:II. The emergence and survival of tillers and their contribution to yield
Adaptability to low phosphoric-acid concentration Andosol Gary Lowland Soil Number of spikes
2009/8/5
The emergence and survival of tillers and their contribution to yield of three varieties, Asakazekomugi, Norin 61 and Norin 64, were examined in four different soils to find the limiting factors to gr...
Difference in δ15N Signatures among Plant Parts of Perennial Species Subjected to Drought Stress with Special Reference to the Contribution of Symbiotic N2-fixation to Plant N
Actinorhizal plant δ15N 15N natural abundance method Nitrogen fixation Perennial plant
2009/7/24
The 15N natural abundance method has been widely used for evaluation of symbiotic N2-fixation. The method inevitably requires a reference plant that reflects soil derived δ15N similar to that in a N2-...
Contribution of Nitrogen Absorbed during Ripening Period to Grain Filling in a High-Yielding Rice Variety,Takanari
Grain filling High-yielding variety Nitrogen partitioning Rice Ripening period
2009/7/21
High-yielding rice varieties require a large accumulation of N in panicles. The objectives of this study were to clarify the change in N allocation during the ripening period (Exp. 1) and to quantify ...
Photosynthesis of Daughter-Tuber Leaves in Eddoe Population and Its Contribution to Canopy Photosynthesis and Tuber Yield
Canopy photosynthesis Closed chamber system
2009/7/14
Three types or eddoe plants(Colocasia esculenta(L.) Schott), i.c., daughter-tuber type(cv. Uhan and Ishikawawase), mother-and daughter-tuber type(cv. Akame), and mother-tuber type(cv. Taiwan-imo), we ...
Cultivar Differences of Nitrogen Fixation Capacity and Its Contribution to Nitrogen Accumulation in Soybean Grown in the Field with a High Soil Nitrate Level
Cultivar difference Fixed nitrogen 15N natural abundance Nodule Relative ureide method Soybean
2009/7/8
To analyze the cultivar differences of nitrogen fixation capacity in soybean under a high soil nitrogen condition, we estimated the amount of nitrogen fixed during the growing season and the percenta...
CONTRIBUTION TO THE COGNITION OF THE FAUNAS OF CARABIDAES (COLEOPTERA - CARABIDAE) FROM THE VINEYARDS FROM THE VINEGROWING CENTER IN COPOU - IASSY
predatory carabidaes Coleoptera
2010/12/1
The researches were made during 1992-2001. There were collected 10704 specimens of carabidaes (Coleoptera-Carabidae). The species with the largest number of collected specimens were: Pseudophonus rufi...