The research progress and major achievements on genetic breeding, het- erosis utilization of rapeseed in Henan Province were summarized, with the aim to provide technical guidance for rapeseed genetic breeding in the ...The research progress and major achievements on genetic breeding, het- erosis utilization of rapeseed in Henan Province were summarized, with the aim to provide technical guidance for rapeseed genetic breeding in the future work. Faced with the problems of lack of special varieties, highly demand for healthy oil and high production cost in rapeseed production in recent years, the breeding goals of rapeseed have been adjusted from high yield, high quality and disease resistance to high oil, high oleic acid, adaptative to mechanization, late planting resistance. The breeding technologies mainly focused on the isolated microspore culture, molecular marker assisted selection, and the corresponding high efficiency technical systems were constructed. The innovative research on excellent germplasm resources were carried on, which created and established breeding populations and distinctive new germplasm resources with diverse variations such as high oil content, high oleic acid content and low linolenic acid, cold resistance, drought resistance, pod shatter resistance and different flower color variations. A series of rapeseed hybrids of dou- ble low varieties with strong heterosis and high oil contents were released and these hybrids significantly improved seed yield, quality and resistance. The average yield of rapeseed in Henan Province was 22.49% higher than the national average yield in 2003-2015. All of the achievements provided strong technical support for the upgrading of rapeseed varieties and increasing both production and income.展开更多
An assistant surface was constructed on the base of boundary that being auto-matically extracted from the scattered data.The parameters of every data point corre-sponding to the assistant surface and their applied fie...An assistant surface was constructed on the base of boundary that being auto-matically extracted from the scattered data.The parameters of every data point corre-sponding to the assistant surface and their applied fields were calculated respectively.Inevery applied region,a surface patch was constructed by a special Hermite interpolation.The final surface can be obtained by a piecewise bicubic Hermite interpolation in the ag-gregate of applied regions of metrical data.This method avoids the triangulation problem.Numerical results indicate that it is efficient and accurate.展开更多
基金Supported by the Key Scientific and Technological Project of Henan Province(151100111200)the National Natural Science Foundation of China(31271763)the China Agriculture Research System(CARS-13)~~
文摘The research progress and major achievements on genetic breeding, het- erosis utilization of rapeseed in Henan Province were summarized, with the aim to provide technical guidance for rapeseed genetic breeding in the future work. Faced with the problems of lack of special varieties, highly demand for healthy oil and high production cost in rapeseed production in recent years, the breeding goals of rapeseed have been adjusted from high yield, high quality and disease resistance to high oil, high oleic acid, adaptative to mechanization, late planting resistance. The breeding technologies mainly focused on the isolated microspore culture, molecular marker assisted selection, and the corresponding high efficiency technical systems were constructed. The innovative research on excellent germplasm resources were carried on, which created and established breeding populations and distinctive new germplasm resources with diverse variations such as high oil content, high oleic acid content and low linolenic acid, cold resistance, drought resistance, pod shatter resistance and different flower color variations. A series of rapeseed hybrids of dou- ble low varieties with strong heterosis and high oil contents were released and these hybrids significantly improved seed yield, quality and resistance. The average yield of rapeseed in Henan Province was 22.49% higher than the national average yield in 2003-2015. All of the achievements provided strong technical support for the upgrading of rapeseed varieties and increasing both production and income.
文摘An assistant surface was constructed on the base of boundary that being auto-matically extracted from the scattered data.The parameters of every data point corre-sponding to the assistant surface and their applied fields were calculated respectively.Inevery applied region,a surface patch was constructed by a special Hermite interpolation.The final surface can be obtained by a piecewise bicubic Hermite interpolation in the ag-gregate of applied regions of metrical data.This method avoids the triangulation problem.Numerical results indicate that it is efficient and accurate.
