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Analyses of Wind Damage Caused by Typhoon 200221 at Shelterbelts in Tokachi,Hokkaido
shelterbelt species stand age stand density thinning
2009/8/28
By analyzing the wind damage caused by the typhoon 200221 at shelterbelts of Tokachi in Hokkaido, it was found that tree species, orientation of shelterbelts, stand age, and species of windward sub-co...
Growth and Survival of Tall Tree Seedlings 6∼8 Years after Soil Scarification in Hokkaido
competition facilitation height growth scarification survival
2009/8/24
Scarification is widely conducted in northern Hokkaido to remove understory dwarf bamboos in degraded forests, and to replace it with tree species. We investigated height growth and survival during 6&...
Relationships between the Distribution and Site Conditions of Abies sachalinensis Seedlings, Saplings and Juveniles in Selection Cutting Stands of Natural Forests in Central Hokkaido,Japan
Abies sachalinensis, distribution characteristics, natural regeneration, selection cutting stand, site conditions
2009/8/24
We examined how site conditions in selection cutting stands of natural forests relate to the regenerate distribution of Abies sachalinensis, which is a main species of mixed conifer-broadleaved forest...
Influences of Forest Type,Topography,and Understory on Infiltration Rates in Eastern Hokkaido,Japan
Abies sachalinensis artificial disturbance conifer plantation Larix kaempferi forest road system
2009/8/24
The effects of forest type, topography, and understory vegetation on infiltration rates were investigated in the Tokoro and Abashiri River watersheds, in eastern Hokkaido. This study was performed in ...
The Extent and Its Source of Variation for Characteristics Related to Seed Quality of Adzuki Beans:II. Variation of seed coat color among growers lots in Hokkaido area
Adzuki bean Cultivar Producing district Seed coat color Seed quality
2009/8/6
In adzuki beans (Vigna angularis) the degrees of lightness, shade, and uniformity for red color of the seed coat are very important indices on estimation of seed quality in Japan. This study was condu...
Varietal Difference in Yield Response to Delayed Sowing Dates in Spring Wheat of Hokkaido
CGR Ear weight type German variety Growth duration Hokkaido variety Sowing date Spikelet initiation
2009/8/4
Three spring wheat varieties, old tall Haruhikari and modern semi-dwarf Haruyutaka bred in Hokkaido, and tall late Selpek bred in Germany, were sown at a 5cm equi-distant square pattern on 3 sowing da...
Lowering of Eating Quality Induced by Sterility due to Cool Weather Damage in Hokkaido Rice Varieties
Amylose content Cool damage due to floral impotency Eating quality Protein content Rice plant
2009/8/4
Sterility was induced by low temperature at the booting stage in early maturing varieties in 1986, and in medium and late varieties in 1987, particularly in the varieties without cool tolerance at Hok...
Chanenges to the Direct Sowing System of Paddy Rice Production in Hokkaido
Direct Sowing System Paddy Rice Production Hokkaido
2009/7/31
Chanenges to the Direct Sowing System of Paddy Rice Production in Hokkaido.
The relationships between the tolerance to cool temperature in the booting stage and the grain quality of paddy rice in Hokkaido
tolerance to cool temperature grain quality paddy rice
2009/7/31
The relationships between the tolerance to cool temperature in the booting stage and the grain quality of paddy rice in Hokkaido.
Traits of NuSunTM Varieties of Sunflower in Hokkaido,Japan
Fatty acid composition Linoleic acid NuSun Oleic acid Sunflower
2009/7/24
Traits of NuSunTM Varieties of Sunflower in Hokkaido,Japan.
Analysis of Cool-weather Damage of Rice in 1993 Based on Data of Municipal Basis in Hokkaido
Air temperature Crop situation index Grain yield Percentage of ripening Sunshine hours
2009/7/22
Crop situation index(CSI, a ratio of yield to average yield over years)of paddy rice in the Hokkaido area in 1993 was 40, the lowest since 1949, because of a cool-weather damage. The yield and CSI, ho...
Cultivation for Early Winter Seeding of Spring Wheat in Central Hokkaido : Relations between seeding date and winter survival
Degree of spring habit Early winter seeding Seeding date Snow covering Temperature Wheat Winter survival
2009/7/22
Cultivation for early winter seeding of spring wheat is tested to extend growing periods and to make the wheat mature earlier in central Hokkaido, where soils are covered by snow but don't freeze in w...
Yielding Ability of Winter Triticale in Snow Heavy Area of Central Hokkaido
Ear number Ear weight Grain yield Harvest index Winter injury Winter triticale Winter wheat
2009/7/15
Field experiments were conducted over 4 seasons (1994-98) in central Hokkaido to examine the differences in growth habits between high- and low-yielding varieties of winter triticale (× Triticosecale...
Cultivation by Early Winter Seeding of Spring Wheat in Central Hokkaido:Suitable seeding density(Agronomy)
Early winter seeding Germination suppressing chemicals Overwintering plant Seeding density Spring wheat
2009/7/15
Previously we found that suitable seeding days for early winter sowing of spring wheat was about 20-25 days before the start of continuous snow covering. In the present study, we examined the effect ...
Study of Upland Crop Production in Abashiri Area, Hokkaido JAPAN
Upland Crop Production Abashiri Area Hokkaido JAPAN
2009/7/14
Study of Upland Crop Production in Abashiri Area, Hokkaido JAPAN.