穴距对夏播谷子产量及其相关性状的影响

以济谷14和济谷15为试材,研究了穴播条件下不同穴距对夏播谷子生长发育和产量形成的影响。结果表明:在相同密度条件下,与条播相比,穴播有效提高了谷子籽粒产量、生物产量、谷草产量和谷穗重,其中,13.0 cm和16.5 cm穴距处理显著高于条播(CK)(P<0.05),不同品种间表现有所差异。因此,在生产上根据不同品种特点确定适宜的穴距穴播,有利于提高谷子产量,实现机械化播种。

Effects of Bunch Spacing on Yield and Relative Characters of Summer-seeding Foxtail Millet

Two foxtail millet cultivars,Jigu 14 and Jigu 15,were used as materials to study the effects of bunch spacing on growth,development and yield formation of summer-seeding foxtail millet.The results showed that compared with row planting,bunch planting effectively increased the grain yield,biological yield,millet-forage yield and millet-ear weight under the same density.They were significantly higher under bunch planting with the bunch spacing as 13.0 cm and 16.5 cm than those under raw planting(CK)(P<0.05),but different varieties showed some differences.Therefore,setting appropriate bunch spacing based on the characteristics of different cultivars was benefit to increasing yield of foxtail millet and achieving mechanized sowing.