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The amount of N in plants increased exponentially at the early growth stage (y=abx) and linearly at the middle and late growth stages (y=a+bx). The crossing point of the two equations coincided with t...
Investigations were made on the effect of isoprothiolane (diisopropyl-1, 3-dithiolan-2-ylidene malonate, IPT) on the ripening of rice (Oryza sativa L.) under the low temperature conditions. The simil...
This experiment started from the observation that the cross section of a rice hill was ellipse in shape. When two rice plants cv. Koshihikari were transplanted in a 1/2000 are Wagner pot, the rice hil...
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...
The emergence and elongation of the tiller buds of rice plants are greatly affected by the environmental temperature, especially by the temperature around the culm-bases where the tillers differentiat...
Using two varieties, KR1 (salt-tolerant variety) and IR28 (salt-sensitive variety), relationship between Na+ uptake and transpiration under different humidity and salinity conditions was examined. The...
In order to clarify the relationships of sodium exclusion to transpiration and root-respiration rates in 100 mmol 1-1 NaCl-treated rice plant, transpiration stream concentration factor of Na+ (TSCFNa+...
Even though the nitrogen content (mgNdm-2) of rice leaves is the same, a large difference in the net photosynthetic rate (Pn) has been recognized. To determine the reasons for the difference, leaf xyl...
The objective of the study was to investigate the possibility of inducing salt-tolerance in rice by pretreatment with low concentrations of NaCl. At the 6th leaf stage, salt tolerant Kala Rata 1-24 (K...
Measurement of Dark Respiration Rate in the Small Portion of Rice Plant Tissues and Organs by Gas-Phase Oxygen Electrode.
We are building an early warning system for preventing the decrease in rice-yield by cool summer damage. To monitor the developmental stage of rice plants in the whole Tohoku area, we constructed a mo...
This study was undertaken to evaluate the effect of short period high water temperature (35°C) on the growth response of immature leaves in rice plants. The test plants was exposed to high water temp...

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