关键词: 谷子, 花生, 间作, 光合特性, 产量

Abstract: In order to study the effects of different intercropping patterns on the growth and yield of millet, this paper selected Nongda 8 and Jinhua 10 as experimental materials for field experiment, and five treatments were set, including millet monoculture (T1), millet peanut 2:4 (T2), millet peanut 3:3 (T3), millet peanut 4:2 (T4) and peanut monoculture (T5). The results showed that: ① Compared with monoculture, the net photosynthetic rate, transpiration rate, stomatal conductance and SPAD value of millet leaves under different treatments increased to different degrees, and the intercellular carbon dioxide concentration decreased. ② For chlorophyll fluorescence parameters, the actual photochemical efficiency, electron transfer rate, quenching coefficient of photochemical fluorescence, and potential photochemical activity of PSⅡ in intercropping millet leaves were all significantly improved compared with that in monocropping, while the maximum quantum yield of PSⅡ did not change significantly. ③ For the yield index, the intercropped millet yield was improved compared with the single crop, and the peanut was shaded by the high niche, which caused the peanut to have poor ventilation and light transmission, inhibiting the growth and development of the peanut, making it at a disadvantage, but the intercropping treatment was overall. There was still a significant intercropping advantage, with T2 treatment being the best. The above results provided a theoretical basis for intercropping of millet and high yield and stability.

Key words: millet, peanut, intercropping, photosynthetic characteristics, yield