不同光照强度对地稔的生长影响
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摘要
以地稔(Melastoma dodecandrum)为研究材料,设置两种光照强度(全光照和半光照)对地稔生长影响。结果表明,随着光照强度的加强,地稔生长覆盖度较快,以半光照组的成坪密度较好;适度的遮荫地稔的植被厚度高于全光照组。无论是全光照还是半光照,地稔开花数量在早期时间段差异不大,但在后期地稔开花数量以全光照组最多。相关性分析结果显示,不同光照强度下地稔的生长覆盖度、植被厚度和开花数量呈显著相关,反映了光照强度是影响地稔生长的主要因子之一。研究结果在生产上可考虑在其不同生长阶段采取不同的光照程度以利于地稔的生长。
The effects two light intensities(full light and semi-light)on the growth of Melastoma dodecandrum was studied. The results showed that with the increase of light intensity,the growth coverage was faster, and the density of the flat layer in the semi-light treatment was better. The vegetation thickness of semi-light treatment was higher than that of the full light treatment. Whether it was full-light or half-light treatment,the number of flowering were little in the early period,but in the late mantle,the number of flowering were the highest in the full-light treatment. Correlation analysis showed that the growth coverage,leaf thickness and the number of flowering of M. dodecandrum. were significantly correlated under different light intensities. It reflected that light intensity was one of the main factors affecting growth. The results of the study may be considered in production to adopt different levels of illumination at different stages of growth to facilitate the growth of M. dodecandrum.
The effects two light intensities(full light and semi-light)on the growth of Melastoma dodecandrum was studied. The results showed that with the increase of light intensity,the growth coverage was faster, and the density of the flat layer in the semi-light treatment was better. The vegetation thickness of semi-light treatment was higher than that of the full light treatment. Whether it was full-light or half-light treatment,the number of flowering were little in the early period,but in the late mantle,the number of flowering were the highest in the full-light treatment. Correlation analysis showed that the growth coverage,leaf thickness and the number of flowering of M. dodecandrum. were significantly correlated under different light intensities. It reflected that light intensity was one of the main factors affecting growth. The results of the study may be considered in production to adopt different levels of illumination at different stages of growth to facilitate the growth of M. dodecandrum.
引文
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[2]何桂芳,夏宜平.优良野生观花地被植物——地稔[J].北方园艺,2005,(3):39.
[3]邱才飞,邓正根,邵彩虹.地稔的应用研究进展及开发利用前景[J].现代农业科技,2009,(17):137.
[4]Sultan SE. Phenotypic plasticity in plants:a case study in ecological development[J]. Ecol Dev,2003,5(1):25-33.
[5]王蕊,孙备,李建东,等.不同光强度对马蹄金叶的特征及总黄酮含量的影响[J].应用生态学报,2012,23(7):1797-1802.
[6]张建新,方依秋,丁彦芬,等.蕨类植物的叶绿素、光合参数与耐荫性[J].浙江大学学报(农业与生命科学版),2011,37(4):413-420.
[7]张莹,常昊,邓昌伟,等.遮阴对彩色马蹄莲光合速率及相关指标的影响[J].山西农业科学,2015,43(1):14-16.
[8]刘燕.乡土植物地稔的繁殖技术及园林应用进展[J].现代园艺,2016,(8):12-13.
[9]罗连,林石狮,李成仁,等.乡土地被植物地稔的规模化栽培技术与景观应用[J].江西农业,2016,(13):84-85.
[10]李雪梅,杨修立.红壤旱地钾、镁肥肥效及其平衡施用对玉米产量的影响[J].湖南农业科学,2004,(1):21-22,66.
[11]林新坚,李昱,李清华,等.硫酸钾镁肥对小白菜、茶叶、西瓜产量和品质的影响[J].土壤肥料,2005,(5):21-28.
[12]邱才飞,钱银飞,陈华玲,等.缺镁硼对人工栽培地稔生长影响[J].南方农业学报,2014,45(4):605-608.
[13]魏涛,周寿荣.四川盆地亚热带野生草坪草栽培试验及应用价值探讨[J].草业科学,2001,18(5):33-36,41.