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通过对玉米株型的研究,阐述了玉米理想株型育种的三个发展阶段:几何形态株型育种、生理形态株型育种、优势利用与生理形态相结合的理想株型育种.分析了反映玉米株型的生理参数变化,指出玉米理想株型是以植株形态、杂交优势、生理、生态为综合指标的高光效性状组合类型,首先具有较强杂交优势和高光合能力的生理形态,为株型创造了良好的生理特性和遗传基础.其次具有合理光合产物的分配效率和生长发育优势,再次具有较强的抗逆能力,以保持对环境优良的适应性,最终创造更高的经济产量.最后对理想株型育种理论及技术进行了分析和展望.
Through the research on plant type of maize, three stages of maize ideal plant type breeding were expounded: the geometric plant type breeding, the physiological plant type breeding, the ideal plant type combining the superior utilization and the physiological form. The changes of physiological parameters reflecting the plant type of maize were analyzed. It was pointed out that the ideal plant type of maize was a combination type of high light efficiency traits with plant morphology, heterosis, physiology and ecology as the comprehensive index. First, the physiological form with stronger heterosis and photosynthesis ability , For the plant type to create a good physiological characteristics and genetic basis. Followed by a reasonable distribution of photosynthetic products, distribution and growth and development advantages, once again have a strong resilience in order to maintain good adaptability to the environment, and ultimately create a higher economic yield. Finally, the theory and technology of ideal plant type breeding were analyzed and forecast.