不同行距对蒙农根茎冰草生长发育的影响

EFFECT OF DIFFERENT ROW SPACING ON THE GROWTH AND DEVELOPMENT OF Agropyron michnoi ROSHEV.

2016年8月~2017年8月,在内蒙古农业大学进行了不同行距蒙农根茎冰草(Agropyron michnoi Roshev.)新品系生长发育的田间小区试验,对不同行距处理的观测和评价的结果表明:试验行距对物候期、出苗率和保苗率、株高及生长速度的影响不明显;但对草产量和种子产量的影响较大,其中以行距20 cm处理的干草产量值为最大,为3 564.00 kg/hm^2,以行距60 cm处理的潜在种子产量和表现种子产量值为最大,分别为1 271.81 kg/hm^2和317.95 kg/hm^2。

A field plot experiment of Wheatgrass（ Agropyron michnoi Roshev.） new strains was carried out,for the growth development influence with different row spacing in Inner Mongolia Agricultural University from August 2016 to August 2017. The results showed that： The phenology period,seedling rate and survival rate,plant height and growth speed were little difference with the 4 test row spacings. But it has greater effects on grass yield and seed yield,the hay yield are maximum to 3 564.00 kg/hm^2 with row spacing of 20 cm. The maximum potential seed yield and presentation seed yield with row spacing of 60 cm,respectively 1271.81 kg/hm^2 and317.95 kg/hm^2.