ZHAO Ben-shu,SONG Yuan-yuan,LI Shao-cai,et al.Effect of Different Nutrient Concentration on Germination and Growth of Paspalum notatum[J].Northern Horticulture,2014,38(17):64-67.
不同养分浓度对百喜草萌发及生长的影响
- Title:
- Effect of Different Nutrient Concentration on Germination and Growth of Paspalum notatum
- 文章编号:
- 1001-0009(2014)17-0064-04
- Keywords:
- Paspalum notatum; nutrient concentration; germination; growth
- 分类号:
- s543+.9
- 文献标志码:
- A
- 摘要:
- 以百喜草为试材，研究了10%、30%、50%、70%、100%、150%、200%、300%共8个养分浓度梯度对百喜草萌发率、高度、分蘖及干物质积累量的影响，探讨获得百喜草在不同养分浓度处理下萌发及生长情况。结果表明：百喜草萌发率与养分浓度呈负相关，但在一定浓度范围内，养分浓度对百喜草萌发的影响不大。在播种60 d后，百喜草高度达到最大，但随养分浓度变化不明显。百喜草分蘖数随养分浓度增加先增加再减小最后趋于平缓，其中10%养分浓度下分蘖数最小，100%养分浓度下分蘖最大。百喜草干物质积累量随着时间的变化呈先增加后逐渐减小趋势，最适生长养分浓度为70%~100%，浓度过低百喜草生长受阻，浓度过高种子萌发及生长受影响。
- Abstract:
- Taking Paspalum notatum as the test material,the effect of eight nutrient concentration gradients which were 10%,30%,50%,70%,100%,150%,200% and 300% on germination rate,height,tillering and dry matter accumulation of Paspalum notatum were studied,in order to get the germination and growth of Paspalum notatum in different nutrient concentrations treatment.The results showed that the germination rates of Paspalum notatum were negatively correlated with nutrient concentrations.But in a certain concentration range,the nutrient concentration had little effect on germination of Paspalum notatum.At 60 days after seedling,the plants height of all concentrations treatment were the hightest,but the height had no significant difference with the nutrient concentrations.The tillering number increased at first,then tended to decrease and be stable with the increasing of nutrient concentration.And the minimum tillering numbers was the treatment of 10% nutrient concentration,the maximum tillering number was the treatment of 100% nutrient concentration.The dry matter accumulations increased and then they gradually reduced with time.The optimum nutrient concentrations was between 70%~100%.The growth would be stunted by low concentrations,and the seed germination and growth would be affected by high concentrations.
参考文献/References:
［1］孙姒纫,张德雍,张庆智.百喜草的特性、功效及种植［J］.广东农业科学,1998(3):37-38.
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备注/Memo
第一作者简介：赵本淑（1989-），女，重庆人，硕士研究生，研究方向为植物景观和生态景观。E-mail：524239212@qq.com.