行距对承谷13号群体特征及产量的影响

Effects of Row Spacing on Population Characters and Yield of Chenggu No.13

以谷子品种承谷13号为试材,在密度为42万株/hm2条件下,研究了5种种植行距(30、35、40、45和50 cm)处理对谷子群体特征及产量的影响。结果表明:在行距为30～50 cm范围内,行距对谷子叶绿素含量、成熟期地上部干物质生物产量、透光率和产量有显著影响;其中,行距为40 cm时,谷子成熟期地上部干物质生物产量最高,透光率较高,产量最高(5 183.6 kg/hm2)。综合分析认为,在密度为42万株/hm2条件下,谷子的最佳种植行距为40 cm。

Using millet variety Chenggu No. 13 as the test material, the effects of different row （30, 35, 40, 45 and 50 cm） spacing on population characters and yield of millet were studied in the density of 42 × 10^4 plant/bin2. The results showed that row spacing had a significant effect on the chlorophyll contents, dry matter yield above ground at mature period, light transmittance and yield of millet in the row spacing of 30 - 50 cm. The dry matter yield above ground at mature period and the yield were highest, and light transmittance was higher in the row spacing of 40 cm. Therefore, it showed that 40 cm was the best row spacing in the density of 42 ×10^4plant/hm2.