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Optimal Planting Depth for Turmeric (Curcuma longa L.) Cultivation in Dark Red Soil in Okinawa Island,Southern Japan
Emergence Planting depth Rhizome Turmeric yield Weed control
2009/7/29
Effects of planting depth on emergence, growth, development and yield of turmeric (Curcuma longa L.) in dark red soil (Shimajiri Mahji) were evaluated in Okinawa, Japan. Turmeric planted at the depths...
Analysis of the Number of Spikelets per Panicle on the Main Stems, Primary and Secondary Tillers of Different Rice Genotypes Grown under the Conventional and Nitrogen-Free Basal Dressing Accompanied with Sparse Planting Density Practices
Cultivation practices Main stems Number of Spikelets Primary tillers Rice cultivars Secondary tillers
2009/7/29
The number and development of spikelets on a panicle directly affect the grain yield. In this study, we examined the differences among various rice cultivars in the number of spikelets per panicle (NS...
Analysis of Lodging-Resistant Characteristics of Different Rice Genotypes Grown under the Standard and Nitrogen-Free Basal Dressing Accompanied with Sparse Planting Density Practices
Breaking strength Lodging Lower internodes Nitrogen-free basal dressing Rice cultivars Sparse planting density
2009/7/29
Field experiments were carried out in 2001 and 2002 to examine the lodging-resistance characteristics of various rice cultivars bred for the Tohoku region of Japan including the widely-cultivated cult...
Analysis of the Dry Matter Production Process Related to Yield and Yield Components of Rice Plants Grown under the Practice of Nitrogen-Free Basal Dressing Accompanied with Sparse Planting Density
Dry matter production Nitrogen-free basal dressing Rice cultivars Sparse planting density Weather conditions
2009/7/28
Experiments were carried out in 1999, 2000 and 2001 on the field of Iwate University, Japan to examine the effect of nitrogen-free basal dressing accompanied with sparse planting density (BNo) on the ...
Varietal Differences in the Responses of Yield Components of Rice Plants to Nitrogen-Free Basal Dressing Accompanied with Sparse Planting Density in the Tohoku Region of Japan
Nitrogen-free basal dressing Rice cultivars Sparse planting density Weather conditions Yield components
2009/7/28
Grain yield of rice plants is composed of different yield components that vary with the genotype, environmental condition and cultivation practice. Experiments were conducted in 1999, 2000 and 2001 in...
Relationships between Vascular Bundles of Panicle Neck Internode and Characters of Head under Different Planting Densities and Nitrogen Fertilizers Applied in Oryza sativa L.
Fertilizer Grains Large vascular bundles 0ryza sativa L Panicle neck internode
2009/7/28
Investigations were carried out on the characters of rachilets, grains and grain weight per panicle of the growing rice plant cv. Shimokita under different planting density and nitrogen fertilizer no...
Varietal Differences in Tillering and Yield Responses of Rice Plants to Nitrogen-Free Basal Dressing Accompanied with Sparse Planting Density in the Tohoku Region of Japan
Nitrogen-free basal dressing Rice cultivars Sparse planting density Weather conditions Yield
2009/7/28
At present, the main challenge in rice production is to achieve a high and stable yield with low input. In this study, the growth of tillers and yield of 12 rice cultivars and lines in the practice of...
Growth Pattern and Radiation Interception of Indeterminate Early Soybean Cultivars under High Planting Population
Canopy structure High planting population Indeterminate stem habit Leaflet area
2009/7/28
Two indeterminate early soybean cultivars, Tsurukogane and Huangbaozhu (Ib); and a comparative cultivar, Tachinagaha (IIc, determinate) were grown under two high planting populations (equidistant spac...
Growth and Yield of Potato Cultivars in Spring Cropping : I. Plant morphology, growth, assimilate partitioning and yield under two planting densities
Dry matter Growth analysis Morphology Partitioning Plant density
2009/7/27
Response of potato genotypes (Solanum tuberosum L.) to increase in planting density was examined. Three potato cultivars (Irish Cobbler, May Queen and Dejima) and two planting densities (5 and 10 pla...
Mixed Planting with Legumes Modified the Water Source and Water Use of Pearl Millet
Competition Deuterium Drought Heavy water Intercropping Leaf water potential Photosynthesis Stable isotope
2009/7/24
In semi-arid areas, pearl millet is an important staple food crop that is traditionally intercropped with cowpea. This study evaluated the water competition between pearl millet and cowpea using deute...
Effects of Planting Density on Growth and Distribution of Roots in Rice Plants (Oryza sativa L.)
Crown root Oryza sativa L Planting density Root system Top-root ratio
2009/7/24
Effects of planting density on the formation of the root system and the relative growth of the top and root in rice plants were investigated. The four planting densities used were 45, 70, 95 and 120 h...
Effects of Planting Pattern and Planting Distance on Growth and Yield of Turmeric (Curcuma longa L.)
Planting density Rhizome-stub expansion Ridge width Triangular planting Turmeric yield Weed interference
2009/7/24
The effects of planting pattern and planting distance on the growth and yield of turmeric (Curcuma longa L.) were examined in Okinawa Prefecture situated in southern Japan. The dry weights of shoot an...
Effects of Planting Date on the Growth and Yield of Two Potato Cultivars Grown from Microtubers and Conventional Seed Tubers
Field cultivation LAI Solanum tuberosum L. Tuber bulking Tuber formation
2009/7/24
This study clarified the effect of planting date on the growth and yield of potato (Solanum tuberosum L.) plants grown from conventional seed tubers (CT) and microtubers (MT). CT of about 50 g and MT ...
Effects of Planting Pattern on the Interception of Solar Radiation by the Canopy and the Light Extinction Coefficient of the Canopy in Rice Plants Direct-sown in a Submerged Paddy Field
Crop growth rate Direct sowing Interception of solar radiation Light-intercepting characteristics Planting pattern Rice
2009/7/24
In order to investigate effects of planting pattern on the interception of solar radiation by the canopy and the light extinction coefficient of the canopy in rice, the rice plants direct-sown in a su...
Effect of Planting Density on Grain Yield and Water Productivity of Rice (Oryza sativa L.) Grown in Flooded and Non-flooded Fields in Japan
Grain yield Non-flooded paddy field Planting density Rice Water productivity Water-use efficiency Yield components
2009/7/24
The effect of planting density on grain yield and water productivity was evaluated in rice (Oryza sativa L.) grown in non-flooded lowland fields in Japan in comparison with flooded fields. One rice cu...