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通过１９９５～１９９７年对秦油２号高产群体质量及调控技术的研究，明确其适宜密度为７０００株／亩左右，单株有效角果数为５５０角左右，每亩总有效角果量范围为３２０～４００万。在适宜总有效角果量范围内，每角粒重与盛花期、成熟期单株茎枝重、结实期干物质积累量、粒壳比、粒重占角果重百分率、产量均呈显著或极显著正相关，较高的每角粒重具有明显的强源畅流增产作用。在获得适宜总有效角果量基础上，把每角粒重提高到７０ｍｇ以上，是秦油２号高产群体质量的一个重要指标。同时对生产实践中如何提高每角粒重进行了探讨。
Through the research on the quality and control technology of Qinyou No.2 high-yielding population from 1995 to 1997, it is clear that the suitable density is about 7000 plants / mu, the effective fruit number per plant is about 550, the total effective fruit yield per acre range is 320 ~ 4 million. Within the range of suitable total effective fruit volume, grain weight per plant and full bloom, mature stem weight per plant, dry matter accumulation at grain-filling stage, grain-shell ratio, grain weight per cent of fruit weight, yield were all significant or Significantly positive correlation, higher grain weight per horn has obvious strong source of smooth flow stimulation. On the basis of obtaining suitable total effective fruit quantity, raising the grain weight per horn to more than 70mg is an important index of Qinyou No.2 high yielding group quality. In the meantime, how to increase the grain weight per corner in the production practice was discussed.