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Lecture 5 Quarantine Inspection on Production, Marketing of Hybrid Rice Seeds in China by YANG Yaosong
Quarantine Inspection Production Marketing of Hybrid Rice Seeds China YANG Yaosong
2023/6/6
Lecture 5 Quarantine Inspection on Production, Marketing of Hybrid Rice Seeds in China by YANG Yaosong.
2. managerial system and Quarantine Inspection on Production, Marketing of Hybrid Rice Seeds in China
managerial system Quarantine Inspection Production Rice Seeds China
2023/6/6
2.managerial system and Quarantine Inspection on Production, Marketing of Hybrid Rice Seeds in China.
以面积和宽长比作为稻种类型的特征参数，建立了稻种类型数据库；以等价矩形长、宽的差值最小为标准，进行了未知稻种类型的判断；以扫描线上黑白像素的变化次数和扫描线数来判断稻种的破裂；以不同阈值提取的稻种面积差来判断稻种是否霉变。选取丰源优299等10种稻种进行实验，分别进行了种子类型判断、工位有无种子判断、几何参数判断以及发霉与破损情况判断，检测正确率分别为100%、91.4%、88.9%和76.8%。
型孔式水稻排种轮充种过程的高速摄像分析（Rice Seeds Feeding Process in Cell Wheel Based on High-speed Photography Technology）
水稻 型孔式排种轮 充种过程 高速摄像
2009/12/28
采用高速摄像技术拍摄了型孔式水稻排种轮的充种过程，分析了充种区内稻种的流动规律、充种姿态以及充种趋势。高速摄像表明：稻种在充种区内主要是沿着限种板一侧向下流动，流动后稻种呈竖立或斜立姿态；在稻种充入型孔的过程中，稻种首先以竖立或斜立姿态充入到排种轮型孔中，其余稻种以平躺姿态填充到型孔上部；91.1％的稻种集中在第2充种区内完成最终的充种过程，因此充分利用第2充种区可以提高型孔式排种轮的充种性能。
Effect of Limiting Oxygen Supply on the Ultrastructure of Root Tip Cells in the Germinating Stage of Rice Seeds
Aerobic germination Anaerobic germination Rice Root tip Ultrastructure
2009/7/21
Root tips excised from rice seeds germinated aerobically and anaerobically for 12, 18, 24, 48 and 72 h were used as experimental materials, and the changes in the ultrastructure of the plerome cells o...
Effects of Drying and Temperature During Storage of Rice Seeds Coated with an Oxygen Supplier on the Seedling Emergence
Coating with an oxygen supplier Rice Seedling emergence Storage temperature Submerged direct-seeding
2009/7/15
In submerged direct-seeding rice (Oryza sativa L.) cultivation, it is important to stabilize the emergence of seedlings. We examined the effects of drying and temperature during storage of rice seeds ...
Comparison of Productivity and Growth Habit between Stored and Newly Harvested Rice Seeds, and Identification of the Cultivars of Stored Rice Seed by RAPD Method
Growth habit Identification Productivity RAPD Rice Stored seed
2009/7/15
The growth habits and paroductivity of stored (5°C, 40% relative humidity) rice seeds with a 90% or higher germination percentage were examined in comparison with those of newly harvested seeds (new s...
Effect of Coating of Rice Seeds with Imidacloprid together with an Oxygen Supplier on Seedling Emergence(Modelling, Information Technology and Environment)
Chemical injury Imidacloprid Oxygen supplier Rice Seedling emergence Submerged direct seeding
2009/7/10
The coating of rice seeds with Imidacloprid together with an oxygen supplier is effective in controlling the plant hopper and green leafhopper. The effect of the method of mixed coating on seedling em...