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以生态育种、理想株型、杂种优势为出发点，探讨培育偏高秆、偏大穗粳爪交组合的可行性。笔者认为，必须突破现有矮秆株型概念。进一步提高单位面积的产量，从挖掘提高生物产量与净同化率的潜力入手，从而提出适当增加秆高、降低单位面积穗数〔２７０～３４５（万／ｈｍ２）〕，培育植株偏高（１１５～１２０ｃｍ），穗偏大（３～４ｇ／穗），抗倒伏，适于不同生产水平和各种不良生态环境，具有明显的根系、分蘖、穗粒优势及后期光合优势的新组合。栽培上采用大垅双行稀植，早促早控，提高中、后期群体质量的配套技术，以实现大面积单产９．７５～１１．２５ｔ／ｈｍ２的产量指标。
Taking ecological breeding, ideal plant type and heterosis as the starting point, the feasibility of cultivating partial tall panicle and big panicle japonica claw cross was explored. The author believes that we must break the existing dwarf plant type concept. To further improve the yield per unit area, we should start with the potential of increasing bio-yield and net assimilation rate, so as to increase the stalk height and decrease the number of spikes per unit area [270-345 (000 / hm2)], 120cm), big panicle (3 ~ 4g / spike), lodging resistance, suitable for different production levels and various adverse ecological environment, with obvious new combinations of root system, tillering, spikelet and photosynthesis. Cultivation of double row sparse planting, early to promote early control and improve the quality of the late group of supporting technology to achieve large-yielding 9.75 ~ 11.25t / hm2 yield indicators.