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Development of Air-assisted Strip Seeding for Direct Seeding in Flooded Paddy Fields
paddy direct seeding in flooded field air-assisted seeding
2010/12/2
We have investigated the use of air-assisted strip seeding for direct seeding in flooded paddy fields. A seeder was developed using a commercially available granule applicator remodelled for tractor i...
Development of a Site-Specific Nitrogen Management System for Paddy Rice Food Technology
precision agriculture map variable rate technology yield-monitoring combine
2009/9/10
Land consolidation involving the joining of small paddy fields to form a large-size field has been promoted recently in Japan in order to increase the efficiency of rice production. However, the varia...
Changes of Heading Time and Panicle Weight in Rice Subjected to Water Stress during the Early Stage of Panicle Development
Cumulative water stress Heading time Leaf water potential Panicle weight Rice
2009/8/6
The increase of heading time in proportion to cumulative water stress (an integrated estimate of the degree and duration of water stress) was demonstrated in a wetland rice cultivar Koshihikari subjec...
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 ...
Root System Development of Japonica-Indica Hybrid Rice Cultivars:1. Number and elongation direction of primary roots
Elongation direction Japonica-Indica hybrid rice cultivars Primary root Rice Root Shoot unit
2009/7/30
To characterize the root system of the Japonica-Indica hybrid rice cultivars (Milyang 23, Suweon 258), we compared the number and elongation direction of primary roots both per stem and shoot unit bas...
Differences in Dry Matter Production and Root System Development between Soybean Cultivars under Deficient Soil Moisture Conditions
Dry matter production Photosynthesis Root system Senescence Soil moisture Soybean cultivar
2009/7/29
In the previous paper, it was clarified that the decrease in dry matter and grain productions under deficient soil moisture conditions differed between cultivars classified into the same ecotype, and ...
Crop Production in Successive Wheat-Soybean Rotation with No-Tillage Practice in Relation to the Root System Development
Glycine max (L.) Merr. No-tillage Root length density Root distribution Soybean Triticum aestivum L. Wheat
2009/7/29
To elucidate the effect of no-tillage practice on the root system development and productivity in a wheat-soybean rotation system in Japan, we continuously cultivated these crops under tilled and non-...
A Model for Phenological Development of Vietnamese Rice Influenced by Transplanting Shock
Development Growth delay Model Red River Delta Rice Transplanting Transplanting shock
2009/7/28
Phasic development of rice is influenced by various climatic conditions and the nursery duration. As a step toward the analysis of yield potential and yield loss in the Red River Delta, Vietnam, we co...
Effects of Elevated CO2 concentration and High Temperature on Growth and Yield of Rice : I. The effect on development, dry matter production and some growth characteristics
Air temperature Biomass production CO2 concentration Global climate change Growth and development Rice Root development Temperature gradient chamber
2009/7/28
Phenological development, biomass production and the related growth characteristics of rice (cv Akihikari) in canopy were measured over the entire growth period under different CO2 concentrations and...
Development and Distribution of Root System in Two Grain Sorghum Cultivars Originated from Sudan under Drought Stress
Branching of root Drought stress Drought tolerance Growth angle of nodal root Plagiogravitropism Root diameter Root length density Sorghum bicolor (L.) Moench
2009/7/27
The difference in rooting pattern between two grain sorghum cultivars differing in drought tolerance was investigated under drought stress. The cultivars, Gadambalia (drought-tolerant) and Tabat (drou...
Effect of Drought During the Establishment Period on the Root System Development of Cassava
Adventitious root Cassava Drought Lateral root Manihot esculenta Root development
2009/7/24
The effect of different time and duration of progressive drought on cassava, during the establishment stage, i.e., from planting to about three months after planting, was studied with special attenti...
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 ...
Development of Rice “Seed-Mats” Consisting of Hardened Seeds with a Cover of Soil for the Rice Transplanter
Cover of soil Dormancy Germination Hardening Rice Seedling Seed-mat Storage life
2009/7/21
Conventional seedling mats for rice transplanters in Japan are heavy to carry, and much labor is required to collect, wash and store the nursery boxes. In addition, seeding time overlaps with the labo...
Differences of Growth and Development between Summer and Autumn-type Cultivars in Common Buckwheat (Fagopyrum esculentum Moench)
Anthesis Autumn-type cultivar Common buckwheat Development Growth Summer-type cultivar
2009/7/21
This paper reports the varietal differences of common buckwheat in shoot growth and flower development during two cropping seasons. The stem elongated vigorously at about the start of anthesis in all ...
Sucrose Metabolism for the Development of Seminal Root in Maize Seedlings
Enzyme localization Fructose Glucose Invertase Root development Sucrose Sucrose synthase Zea mays
2009/7/20
The objective of this study was to elucidate the roles of sugar in the formation of root systems. Several parts of the seminal root were investigated to determine their sucrose, glucose and fructose c...