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Response of Leaf Water Potential of Rice (Oryza sativa L.) to Evaporative Demand under Paddy Field Conditions:II. Relationship between response and yield
Evaporative demand Grain yield Leaf water potential Location Radiation Spikelet number
2009/7/31
We observed previously (Part 1) that maintenance ability of leaf water potential (Ψ1) in rice plants under paddy field conditions changed depending on planting years and seasons and individual locatio...
Response of Leaf Water Potential of Rice (Oryza sativa L.) to Evaporative Demand under Paddy Field Conditions : I. Changes with plant development
Evaporimeter Evaporative demand Growth stage Leaf water potential
2009/7/31
Because the leaf water potential (Ψ1) of the rice plant (Oryza sativa L.) is strongly affected by the evaporative demand of the atmosphere under paddy field conditions, and most changes in Ψ1 reflect ...
Analysis of Physiological and Ecological Characteristics of Rice Cultivated with Direct Seeding on Dry Paddy Field
Direct seeding cultivation Mechanical transplanting cultivation Photosynthesis Rice
2009/7/23
To understand the growth habit of rice plants under direct seedling cultivation on well-drained paddy fields, physiological and ecological characteristics were compared among directly seeded and trans...
Effect of Winter Weeds on Growth and Yield of Direct-Seeded Rice in No-tillage Dry Paddy Field
Direct sowing culture of paddy rice Fertilizer No-tillage Rice Winter weeds Yield
2009/7/23
The effects of winter weeds on the growth and yield of direct-seeded rice (Oryza sativa L. cv. Akebono) were evaluated in a no-tillage dry paddy field where Alopecurus aequalis Sobol. var. amurensis (...
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...
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...
Comprehensive Evaluation of Productivity and Environmental Loads in a Paddy Field Under Different Fertilized Conditions
Comprehensive evaluation environmental load
2010/12/2
The effect of fertilized conditions on environmental loads of methane emissions and water quality in a paddy field and the yield of rice were comprehensively evaluated. The experimental plots were no-...
Additional Profits by an Introduction of Polyculturing into Monoculturing at Paddy Field
rice paddy field monoculture fertilizer type
2010/12/2
To investigate the additional profits by an introduced complexity of cropping into rice monoculturing at an usual paddy field, the serial experiments were carried out in 2004.