| 不同基质栽培百子莲生长效应评价 |
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| 引用本文： | 陈香波,申瑞雪,吕秀立,冯建华,李圃锦,张冬梅.不同基质栽培百子莲生长效应评价[J].中国农学通报,2020,36(19):73-79. |
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| 作者姓名： | 陈香波 申瑞雪 吕秀立 冯建华 李圃锦 张冬梅 |
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| 作者单位： | ;1.上海市园林科学规划研究院,上海 200232;2.上海城市困难立地绿化工程技术研究中心,上海 200232;3.上海上房园林植物研究所,上海 201114;4.江西农业大学园林与艺术学院,南昌 330045 |
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| 基金项目： | 上海市科委科技支撑项目“百子莲花色种质提纯与商品苗规模化生产技术研究”(13391900901);上海市科委“科技创新行动计划”项目“大花葱等球形花序花卉品种选育与商品苗规模化生产技术研究”(19391901200);上海市科委重点研发项目“崇明世界级花岛适生植物筛选及其种质资源库和示范地建设”(17DZ1201801) |
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| 摘 要： | 为探明基质不同理化性质对大花百子莲幼苗生长的影响,筛选百子莲适合的栽培基质,采用草炭、枯枝落叶腐熟肥、椰糠、松树皮、黄沙、珍珠岩、园土等材料配成8种混合基质,以园土作为对照,测定不同基质理化性质与不同基质栽培百子莲幼苗的形态、生长及相关生理指标,进行指标间相关性分析。结果显示,土壤总孔隙度、毛管孔隙度与叶片数、最大根长间存在显著正相关(P＜0.05),土壤EC值与根干重、根冠比及单叶鲜重间显著负相关(P＜0.05),土壤全钾与地上部分鲜重、地上部分干重间显著负相关(P＜0.05),表明改善土壤通气状况能够促进百子莲生长,EC值增高限制根系干物质积累、降低植株根冠比,钾素营养抑制百子莲地上、地下部分营养生长。方差分析表明,不同混合基质处理间百子莲幼苗各项指标存在极显著差异(P＜0.01),大多数配比基质百子莲生长形态指标优于园土对照,经生长指标综合评价,草炭、枯枝落叶腐熟肥、椰糠、松树皮、黄沙以2:1:1:1:1配比混合基质综合评价指数最高(0.91),其次为草炭、椰糠、黄沙以2:1:1配比基质(0.66),表明这2种混合基质较适宜百子莲生长,可在百子莲规模化生产中推广应用。
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| 关 键 词： | 百子莲 栽培基质 生长指标 生理指标 总孔隙度 综合评价指数 |
| 收稿时间： | 2019-06-05 |
Agapanthus praecox ssp. orientalis Seedlings Growing on Different Formula Media: Effect Evaluation |
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| Chen Xiangbo,Shen Ruixue,Lv Xiuli,Feng Jianhua,Li Pujin,Zhang Dongmei.Agapanthus praecox ssp. orientalis Seedlings Growing on Different Formula Media: Effect Evaluation[J].Chinese Agricultural Science Bulletin,2020,36(19):73-79. |
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| Authors: | Chen Xiangbo Shen Ruixue Lv Xiuli Feng Jianhua Li Pujin Zhang Dongmei |
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| Institution: | ;1.Shanghai Academy of Landscape Architecture Science and Planning, Shanghai 200232;2.Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites, Shanghai 200232;3.Shanghai Shangfang Gardening Plant Research Institute, Shanghai 201114;4.College of Landscape Architecture and Art, Jiangxi Agricultural University, Nanchang 330045 |
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| Abstract: | To study the influence of different formula media on growth of Agapanthus praecox ssp. orientalis seedlings and provide suitable cultivation medium, 8 formula media mixed of peat moss, fermentation products of organic litter, coconut chaff, pine bark, yellow sand, pearlite and natural soil were used. The physical and chemical properties of mixed media were detected as well as the morphological, growth and physiological indexes of seedlings. Correlation analysis was conducted. The results showed that there existed extremely and significantly positive correlations between total porosity, capillary porosity and leave number or maximum root length (P＜0.05), while significantly negative correlations between electric conductivity index and dry weight of root, rootshoot ratio or fresh weight of leave and also between total potassium of soil and fresh weight of aboveground parts or underground parts. It indicated that growth could be improved by promoting aeration status of medium while with electric conductivity index increasing, dry matter accumulation being restrained and the rootshoot ratio decreasing. Potassium nutrition inhibited the growth of both aboveground parts and underground parts. There existed extremely significant difference of the tested indexes between different media treatments (P＜0.01). Seedlings on most of the formula media grew better than that on the natural soil contrast. The comprehensive evaluation of morphological and growth indexes indicated that the medium mixed with peat moss, fermentation products of organic litter, coconut chaff, pine bark and yellow sand at the ratio of 2:1:1:1:1 presented the highest value of 0.91. Next was the media of peat moss, coconut chaff and yellow sand mixed at the ratio of 2:1:1 with the value of 0.66. Therefore these two formula media are suggested for the cultivation of Agapanthus praecox ssp. orientalis. |
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| Keywords: | Agapanthus praecox ssp orientalis cultivation media growth index physiological index total porosity comprehensive evaluation |
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