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采用完全随机试验设计 ,研究不同修剪次数、修剪高度对新疆狗牙根种子生产性能的影响。结果表明 :不同的修剪次数对新疆狗牙根种子产量影响显著 (P <0 .0 5 ) ,且以修剪一次种子产量为最高 ,达 72 3.9kg·hm- 2 ,比对照提高 69.2 5 %。不同修剪高度对新疆狗牙根种子产量影响极显著 (P <0 .0 1)。在分蘖—拔节期 ,修剪留茬 3cm可获得最高的种子产量 ,为 5 71.3kg·hm- 2 ,比对照提高 33.5 7%。
A completely randomized trial design was used to study the effects of different pruning times and pruning heights on the seed production of bermudagrass. The results showed that different pruning times had significant effects on the bermudagrass seed yield of Xinjiang (P <0.05), and the highest pruning seed yield reached 72.99kg · hm-2, which was 69.25% higher than that of the control. The effects of different pruning heights on bermudagrass seed yield in Xinjiang were significant (P <0.01). At the tillering-jointing stage, the highest seed yield was obtained with trimming stubble 3 cm, which was 5 71.3 kg · hm-2, 33.5 7% higher than that of the control.