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农学学报

农学学报 ›› 2012, Vol. 2 ›› Issue (2): 46-53.

• 林学 园艺 园林 食用菌 • 上一篇    下一篇

西兰花穴盘育苗幼苗生长动态及其数学模型研究

刘伟明 汪恩国 何道根 何贤彪   

  • 收稿日期:2011-08-05 修回日期:2011-10-22 出版日期:2012-02-20 发布日期:2012-02-20
  • 基金资助:

    应对日本“肯定列表制度”的西兰花生产技术研究集成与产业化开发

Studies on the Growth of the Seeding and Its Mathematical Model of Plug Seedlings in Brassica oleracea var. italica

  • Received:2011-08-05 Revised:2011-10-22 Online:2012-02-20 Published:2012-02-20

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摘要：

为革新西兰花传统繁重的育苗技术，揭示西兰花穴盘育苗幼苗生长规律，更好地促进西兰花育苗产业化和品质提升，对西兰花穴盘育苗的不同穴盘规格处理以及基质、基肥等试验结果进行了系列的统计分析，表明种子出苗率随时序推进而增加并呈曲线变化，其数学模型为y=25.431+20.783d-1.3811d2（r=0.9919**，r0.01=0.7348）；幼苗株高随时序推进，生长呈“慢-快-慢”变化，其数学模型为h=-0.0008d2+0.3856d-0.7077（r=0.9882**，r0.01=0.7348）；幼苗茎粗随时序推进，生长呈先慢后快，其数学模型为S=0.0332d+0.6471（r=0.9877**，r0.01=0.7348）。还对西兰花穴盘育苗的基质、基肥和气候与幼苗生长的相关性进行了系统的分析，建立了相应的数学模型，为西兰花穴盘育苗的有效调控提供重要依据。

关键词: 全生物可降解膜, 全生物可降解膜, 土壤水分, 土壤温度, 马铃薯, 产量

Abstract:

In order to reform the traditional heavy seedling technique Brassica oleracea var. italica, it revealed the growth rules of plug seedlings in Brassica oleracea var. italica, promoting industrialization and improve quality plug seedlings in Brassica oleracea var. italica, and applying with hole tray of different specifications and matrix, with such impact application, the experimental results showed the seed germination rate increased and the order at any time a curve change rule, the mathematical model was that y=25.431+20.783d-1.3811d 2 (r=0.9919**, r0.01=0.7348); seedlings at any time sequence, the high growth and a slow-fast-slow change rule, the mathematical model was that h=-0.0008d2+0.3856d-0.7077 (r=0.9882**, r0.01=0.7348); seedlings stem diameter was always the sequence to increase and the growth in the first slow, quick growth rule, the mathematical model was that S=0.0332d+0.6471 (r=0.9877**, r0.01=0.7348). The main influence factors on seedling growth over a matrix, basal and climate, using the growth rule and model or adjusting determined comprehensively seedling technique measures had the important instruction meaning.