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Performance of a High-Yielding Modern Rice Cultivar Takanari and Several Old and New Cultivars Grown with and without Chemical Fertilizer in a Submerged Paddy Field
Dry matter production Grain yield Light extinction coefficient Nitrogen accumulation Old and new cultivars Rice Root length density
2009/7/21
A high nitrogen-uptake capacity and effective use of absorbed nitrogen for dry matter and grain production are required to improve the production cost and environmental pollution. We characterized gra...
Studies on Direct Sowing Cultures of Rice in Northern Kyushu : Estimation of plant characteristics on lodging resistance for a highly palatable rice cultivar using direct sowing cultures in flooded paddy field
Direct sowing High palatabilty Lodging resistance Principal component analysis Rice Varietal difference
2009/7/21
This study was undertaken to determine the plant characteristics which might be associated with lodging resistance for the selection of good eating-quality rice cultivars well adapted to direct sowin...
Varietal Differences in Growth, Lodging and Related Characters of Rice Plants Broadcasted in Submerged Paddy Field at Different Densities(Agronomy)
Direct sowing in submerged paddy field Flexural rigidity Grain yield Lodging Moment of inertia of area Planting density Rice Young's modulus
2009/7/15
Seeds of rice cultivars, Nipponbare, Takanari and Chugoku 153 were broadcasted in the submerged paddy field at different densities. The density of seedlings after establishment was in the range of ab...
Characteristics of Dry Matter Production in Rice Plants, Cultivar Takanari Sown Directly in Submerged Paddy Field Compared with Conventionally Transplanted Plants(Agronomy)
Direct-sown rice in submerged field Dry matter production Extinction coefficient Grain yield
2009/7/10
Dry matter production and the related characters in the rice plants sown directly in the submerged paddy field or in the drained field after puddling were compared with those in conventionally transpl...
Effect of Unevenness in a Paddy Field on the Early Growth and Tillering in Direct Seeding Cultivation of Rice(Agronomy)
Depth of water Direct seeding Early growth Lower nodal tiller Maximum number of tillers
2009/7/10
To clarify the effect of unevenness in a field on the tiller development of direct-seeded rice plants, we investigated the height and growth at the same measuring points. The paddy field had a high de...
Comparison of the Occurrence of Kernel Damage in Rice Plants Grown in a Heated Greenhouse and in a Paddy Field of High Temperature Year
Grain quality Greenhouse High temperature Rice plant
2009/7/10
The percentages of the number of heat-damaged kernels, white-back or basal-white kernels and milky-white kernels in a heated greenhouse were compared with those in a paddy field in a high-temperature...
Alleviation of the Calcium Nitrate-Induced Suppression of Seedling Emergence by Seed Coating with Oxygen Supplier and Soil Puddling before Seeding in Direct-Seeding Rice in Submerged Paddy Field
Oxygen supplier Puddling Direct seeding of rice in submerged paddy field Apple snail Calcium cyanamide
2009/7/9
The effect of seed coating with oxygen supplier on the suppression of rice-seedling emergence by calcium nitrate applied to control apple snail, was examined in pots and petri dishes. The seed coatin...
Waxy Rice Cultivation by Direct Sowing in a Well-Drained Paddy Field in Hokkaido
Cold region Well-drained paddy field Paddy Direct sowing Cold temperature Establishment Hokkaido Waxy rice
2009/7/9
To cultivate waxy rice instead of transplanting by direct sowing in Hokkaido, we investigated the germination, emergence and establishment of waxy rice (cv. Hakuchou-mochi and cv. Kazenoko-mochi) unde...
Effect of Tilling and Seeding Methods on Seedling Emergence, Growth and Yield of Rice Direct-seeded in Well-drained Paddy Field
Direct seeding in well-drained paddy field Emergence Panicle differentiated from high nodal position Seeding method Tilling method
2009/7/8
This study was conducted to examine the effects of tilling and seeding methods on the growth of rice direct-seeded in well-drained paddy field. The tilling methods used were plowing, non-tilling, and...
Effect of Heavy Manure Application and Water Management on Growth and Yield and CH4 and N2O Emission from the Paddy Field
Continuous application of farmyard manure Greenhouse gas Organic paddy field Restriction of irrigation
2009/7/8
The effects of farmyard manure application and water management on the growth and grain yield of rice and CH4 and N2O emission from the paddy field were examined from 2001 to 2003. By application of ...
Change after Heading in Lodging Resistance and Physical Characteristics of the Basal Culm of Direct Seeded Rice in a Flooded Paddy Field
Breaking strength of culm with leaf sheaths Days after heading Direct seeding in flooded paddy field Leaf sheath Lodging resistance Rice Section modulus
2009/7/8
We examined how lodging resistance and physical characteristics of the basal culm change after heading in rice direct-seeded in a flooded paddy field using 14 rice varieties. At 5 weeks after heading...
Correlation of Lodging Resistance with Physical Characteristics of the Basal Culm and Rooting Behavior in Rice Direct Seeded in a Flooded Paddy Field
Bending stress Breaking strength of culm with leaf sheaths Crown root Growth angle of root
2009/7/8
In submerged direct seeding such as hill seeding and row seeding, lodging was not caused easily compared with broadcast seeding. Not only deep rooting but also physical characteristics of the basal cu...
Relationship of Growth Variability, with Ground Level and Soil Water Content in a Large Paddy Field in Inashiki-city, Ibaraki-prefecture in 2007—Wet Injury of Wheat
Triticum spp Excess-moisture injury Wet endurance Upland field converted from paddy field
2009/7/7
There was a heavy rain fall on Nov. 19-20 and Dec. 26-27, 2006 in Ibaraki-prefecture. We examined wheat growth and soil conditions in a large paddy field in Inashiki-city, Ibaraki-prefecture, where p...
Effects of Inter-Row Strip Tillage on Soil Water Content, the Growth and Yield of Soybean (Glycine max L.) in Upland Field Converted from Paddy Field
Inter-row strip tillage Soil moisture Soybean (Glycine max L.) Tillage Upland field converted from paddy field Yield
2009/7/7
We adopted the 'inter-row strip tillage' (IST), in which furrows between rows are tilled and seed is sown on the ridge which is covered with the tilled furrow soil, to the soybean cultivation in upl...
Effects of Iron-Powder Coating versus Calcium-Peroxide Coating of Seeds on Seedling Emergence and Establishment of Rice Direct-Seeded in Submerged Paddy Field
Bird damage Iron-coated seed Low temperature Rice Seeding depth Seedling emergence
2009/7/7
This research was conducted to establish the method of direct seeding of iron-coated seeds using air-assist row seeder in the cold district. The defensive effect of iron-coated seeds direct-seeded in...