两优312与R312混播种植模式

Research on Mixed-sowing Planting Pattern of Rice Varieties Liangyou 312 and R312

为探索杂交水稻与其父本混播种植的可行性,以两优312和R312为试验材料,C两优343为对照,对两优312和R312按2∶1的比例进行了混播种植试验。结果表明,在株叶形态和产量性状上,两优312和R312混播种植与C两优312单独直播种植差异不大,且米质更好,分别比对照C两优343增产5.7%和6.0%,但与R312单独直播种植比较,其产量差异明显,经济效益突出。因此,两优312与R312的混播种植具有一定的可行性和推广应用前景。

To prove the feasibility of mixed- sowing planting of hybrid rice and its male parent,taking Liangyou 312 and R312 as test materials,and C-Liangyou 343 as the control,we carried out the mixed- sowing planting test of Liangyou 312 and R312 in the mixed proportion of 2 ∶ 1. The results indicated that there existed little difference in plant- leaf morphology and yield characters between the mixed-sowing planting of Liangyou 312 and R312 and the alone planting of Liangyou 312,but the former obtained better rice grain quality than the latter. The yield of Liangyou 312 and R312 mixed cultivation was 5.7% higher than that of C-Liangyou 343 cultivation alone,and the yield of Liangyou 312 cultivation alone was 6. 0% higher than that of C- Liangyou343 cultivation alone. However,there existed a big difference in yield between Liangyou 312 and R312 mixed cultivation and R312 cultivation alone,and its economic profit was prominent. Therefore,Liangyou 312 and R312 mixed cultivation could obtain a good application prospect.