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Root morphology in response to nitrogen supply in mid-season indica rice cultivars released in different decades 被引量:7
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作者 Yikai Zhang Huizhe Chen +3 位作者 Yuping Zhang Jing Xiang Guangmei Ji Defeng Zhu 《Science China(Life Sciences)》 SCIE CAS CSCD 2017年第4期439-442,共4页
Dear Editor,Roots,as a major organ of plants,are involved in nutrient and water acquisition,and might play a vital role in yield increase and efficient N absorption with genetic improvement.Because of the great differ... Dear Editor,Roots,as a major organ of plants,are involved in nutrient and water acquisition,and might play a vital role in yield increase and efficient N absorption with genetic improvement.Because of the great differences in growth period and pattern between the old and new rice cultivars,it is difficult to clarify how genetic improvements contribute to root growth in rice. 展开更多
关键词 roots shoot vital nutrient length season breeding clarify cultivar roots
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Root architecture 被引量:2
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作者 leon v.kochian 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2016年第3期190-192,共3页
Numerous research publications over the past 20 years have made it quite clear that a better understanding of the molecular and genetic basis for variation in root system architecture(RSA)will greatly aid the develo... Numerous research publications over the past 20 years have made it quite clear that a better understanding of the molecular and genetic basis for variation in root system architecture(RSA)will greatly aid the development of crop varieties with improved and more ef ficient nutrient and water acquisition under limiting conditions. 展开更多
关键词 root publications nutrient entitled limiting maize breeding pioneering roots drought
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Algorithm based on local breeding of growing modes for convection-allowing ensemble forecasting 被引量:4
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作者 Chaohui CHEN Xiang LI +2 位作者 Hongrang HE Jie XIANG Shenjia MA 《Science China Earth Sciences》 SCIE EI CAS CSCD 2018年第4期462-472,共11页
We propose a method based on the local breeding of growing modes(LBGM) considering strong local weather characteristics for convection-allowing ensemble forecasting. The impact radius was introduced in the breeding of... We propose a method based on the local breeding of growing modes(LBGM) considering strong local weather characteristics for convection-allowing ensemble forecasting. The impact radius was introduced in the breeding of growing modes to develop the LBGM method. In the local breeding process, the ratio between the root mean square error(RMSE) of local space forecast at each grid point and that of the initial full-field forecast is computed to rescale perturbations. Preliminary evaluations of the method based on a nature run were performed in terms of three aspects: perturbation structure, spread,and the RMSE of the forecast. The experimental results confirm that the local adaptability of perturbation schemes improves after rescaling by the LBGM method. For perturbation physical variables and some near-surface meteorological elements, the LBGM method could increase the spread and reduce the RMSE of forecast,improving the performance of the ensemble forecast system.In addition, different from those existing methods of global orthogonalization approach, this new initial-condition perturbation method takes into full consideration the local characteristics of the convective-scale weather system, thus making convectionallowing ensemble forecast more accurate. 展开更多
关键词 Convection-allowing ensemble forecasting Local breeding of growing modes Perturbation structure Spread root mean square error of forecast
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