Abstract:

To find out new varieties of black sesame, ‘Ganzhi 7’ in the hilly red soil area suitable for planting density, five by autumn design process, namely Ⅰ: 1.2×105 plants per hectare, Ⅱ: 1.8×105 plants per hectare, Ⅲ: 2.4×105 plants per hectare, Ⅳ: 3×105 plants per hectare, Ⅴ: 3.6×105 plants per hectare, of different planting density on its production and the impact of the main characters. The results showed that, different planting densities had little impact on groth process and had different impact on main biological characteristics and economic characteristics of ‘Ganzhi 7’, but had large impact on yield, the density was too diluted or too dense which was not conducive to high yield, dense planting was better than diluted planting in autumn, the density should not be less than 1.8×105 plants per hectare, 2.4×105 plants per hectare was appropriate,the yield was up to 1720.86 kg/hm2, the appropriate density of spring sowing was 1.8×105 plants per hectare, the appropriate density of summer sowing was 2.1×105 plants per hectare.