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70年代我国西南、华中的甘薯产区一些同志,曾提出“结籽红苕”的利用问题(即实生苗生产利用),目的是在生产上直接通过品种间杂交种子用于生产,以提高产量。进行这项实验工作的有13个省、市,未取得显著成效。作者就此问题作了试验,并去外省考察,小结如下。一、试验结果本试验自1971年起在西北农学院农作一站进行。主要结果: 1.组合群体产量试验:“结粒红苕”是直接利用两个自然开花品种的杂种一代实生苗群体。从表1不同组合实生苗群体鲜薯产量结果看出:不同组合间实生苗群体产量差异明显,其中向阳黄×向阳红、向阳红×向阳黄
In the 1970s, some comrades in the sweet potato producing areas in southwestern and central China had proposed the utilization of seedlings (ie, the production and utilization of seedlings) in order to increase the output through the direct production of hybrid seeds between varieties. Thirteen provinces and municipalities conducted this experiment without any significant results. The author made a test on this issue and went to the provinces for investigation. The summary is as follows. First, the test results This test since 1971 in Northwest Agricultural College farm one stop. The main results: 1. Combinatorial yield test: “Scleroderma sibiricum” is a direct use of two natural flowering hybrid seedlings generation population. From Table 1 different combinations of seedling population of fresh potato yield results show that: the different combinations of seedling population yield significantly different, which Xiangyang × Xiangyang red, Xiangyang × sunflower yellow