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几十年来在籼粳稻杂交育种、水稻理想株型及超高产育种领域完成了大量开拓性应用基础研究，首次提出了籼粳稻杂交育种的关键技术，即通过生物学方法克服籼粳杂交产生的疯狂分离、结实率低和后代不易稳定三大困难以及有利综合籼粳优点的亲本和杂交后代选择技术，使之成为行之有效的常规育种方法，使我国成为世界上籼粳稻杂交育种最成功的国家；在籼粳稻杂交育种基础上，首次明确提出通过籼粳稻杂交创造株型变异、进行理想株型育种的理论与方法，并用数学方法定量分析了主要株型性状与群体光能利用、物质生产及产量形成的关系，明确了在育种和栽培实践中应用的生理参数；首次系统研究了水稻直立穗型生理生态特性及遗传规律，提出了扬长避短充分发挥其优势的关键技术，证明矮化育种后株型改良仍然有巨大潜力，把理想株型研究推向新阶段；首次明确提出了理想株型与优势利用相结合的超级稻育种技术路线，创立了具有中国特色的水稻超高产理论体系，即通过籼粳稻杂交创造形态和生理变异，再经优化性状组配选育理想株型与优势利用相结合的超高产品种；首次提出了大穗型直立德超高产株型模式，同时确立了超高产的亲本和杂交后代选择技术，为实现水稻单产的第三次飞跃奠定了理论基础。根据上述理论和方法，创造出?
For decades, a large number of groundbreaking applied basic researches have been done in the fields of indica and japonica cross breeding, rice ideal type and super-high-yield breeding. The key technology of cross breeding in indica and japonica was first put forward in this paper, that is, to overcome the madness of crossing between indica and japonica through biological methods Separation and low seed setting rate and the three major difficulties that are difficult to stabilize for future generations and the parents and hybrid progenies that are advantageous for synthesizing indica and japonica, making it an effective and routine breeding method, making our country the most successful country in the crossbreeding of indica and japonica Based on the cross breeding of indica and japonica, the theory and method of plant type variation by crossing between indica and japonica were proposed for the first time. The theory and method of ideal plant type breeding were clearly put forward. Mathematical methods were also used to quantitatively analyze the main plant type traits and population light energy utilization, material production and The relationship between yield and yield, the physiological parameters used in breeding and cultivation practices were clarified. The physiological and ecological characteristics and genetic rules of rice erect panicle were systematically studied for the first time. The key techniques of giving full play to its advantages were put forward. There is still tremendous potential to improve the type of research To the new stage. For the first time, the line of super rice breeding with combination of ideal plant type and superiority utilization was clearly put forward. The theoretical system of super high yield of rice with Chinese characteristics was established, that is, the morphological and physiological variation was created through the cross between indica and japonica, and then optimized The trait combinations were selected with the super-high-yielding varieties combining the ideal plant type with the superior utilization. For the first time, a large panicle type plant with upright high yield was established. At the same time, the selection of super-high yielding parents and hybrid progenies was established. The third leap laid the theoretical foundation. According to the above theories and methods, create?