搜索结果: 1-11 共查到“作物育种学与良种繁育学 Soil”相关记录11条 . 查询时间(0.125 秒)
Time-dependent changes in distribution patterns of soil bulk density and penetration resistance in a rangeland under overgrazing
Bulk density overgrazing penetration resistance
2011/6/29
High soil bulk density and penetration resistance as an indication of soil compaction affect soil infiltration and runoff.
Promotion of Seedling Emergence of Paddy Rice from Flooded Soil by Coating Seed with Potassium Nitrate
Calcium peroxide Direct sowing Foliage leaf emergence Germination Paddy rice Pelleted seed
2009/8/6
Emergence and establishment of seedling of paddy rice sown into flooded soil are poor but promoted when seeds are coated with O2 generator CaO2. It has been commonly understood that this is because C...
Interspecific Differences of the Root System Structures of Four Cereal Species as Affected by Soil Compaction
Cereal root system structures Interspecific differences Lateral root development Mechanical impedance Root system morphometry Root extension rate Soil compaction Soil physical environment
2009/8/5
Comparison of the root system structures of four cereal species as affected by soil compaction was conducted morphometrically. Plants were grown under two different soil bulk densities of 1.33g/cm3 (c...
Seedling Emergence and Establishment of Direct-sown Paddy Rice in Soils Incorporated with Substances Produced in Reductive Paddy Soil
Acetic acid Direct sowing Ferrous iron Paddy rice Seedling emergence Seedling establishment
2009/8/4
Although seedling emergence and establishment is inhibited by soil reduction in the direct sowing of paddy rice into puddled and leveled soil, the reasons for this are not clearly understood. This exp...
Varietal Difference and Temperature Response of Local Soil-Reduction around Germinating Rice Seed
Direct sowing Germination Rice Seedling emergence Soil reduction Varietal difference
2009/7/31
Local soil-reduction occurs around rice seed when it is sown into flooded soil, and the reduction inhibits seedling emergence. Seedling emergence is more inhibited when the reduced soil area is forme...
Effects of Soil Water Condition on Root Development of Wheat Seedling with Special Reference to Branching of Primary Seminal Root
Branching Lateral root Nodal root Root system Seminal root Triticum aestivum L
2009/7/30
Effects of soil water stress on root development of winter wheat seedling was studied with special reference to elongation and branching of seminal roots. Japanese wheat variety Norin 61 was planted ...
Seedling Establishment of Rice Sown on Soil Surface in Flooded Paddy Field : I. Varietal difference in seedling establishment
Direct seeding Establishment Floating seedling Flooded paddy field Rice Seedling establishment
2009/7/23
Field experiments were carried out to clarify the differences and key factors in the rate of seedling establishment among rice varieties sown on the soil surface in flooded paddy fields. The percentag...
Breeding of Rice for a High Seedling Emergence Rate in Direct Seeding under a Submerged Soil Condition
Direct Seeding Evaluation Method Gene Source Rice Seedling Emergence
2009/7/9
Rice lines with a high seedling emergence rate were screened by sowing the seed 20 or 30 mm deep from the soil surface at 20°C or 25°C in a growth chamber, or placing the seeder-tape 20 mm deep from ...
Influence of Draining after Direct Seeding of Rice under Submerged Conditions on Seedling Emergence and Establishment in Relation to Three-Phase Structure of Soil
Coleoptile Drainage of flooded water First leaf Rice Seedling emergence Seedling establishment
2009/7/8
The effects of draining after submerged direct seeding were investigated in pot experiments to improve emergence and establishment of rice seedlings in the new direct seeding method using a "shooting...
Effects of Acidified Porous Hydrate Calcium Silicate at Various pHs Applied to Nursery Bed Soil on the Growth of Rice Seedlings (Oryza Sativa L.)
Acidified porous hydrate calcium silicate Al toxicity Evans blue staining Material pH
2009/7/7
We have developed acidified porous hydrate calcium silicates (APS) with the final pH of 3.0, 3.9 or 5.3 by adding of sulfuric acid to porous hydrate calcium silicate material. In this study, the effec...
Oospores of Phytphthora infestans in soil provide an important new source of primary inoculum in Finland
potatoes Solanum tuberosum potato late blight Phytophthora infestans epidemiology oospores mating type sexual reproduction soil borne inoculum
2010/8/13
There have been numerous indications since the 1990s that oospore-derived primary infections play an increasing role in the epidemiology of potato late blight. The aim of this study was to verify that...