Growth Model of Common Ice Plant (Mesembryanthemum crystallinum L.) Using Expolinear Functions in a Closed-type Plant Production System

被引：2

作者：

Cha, Mi-Kyung ^{[1
]}

Kim, Ju-Sung ^{[1
,2
]}

Cho, Young-Yeol ^{[2
,3
]}

机构：

[1] Jeju Natl Univ, Cheju 690756, South Korea

[2] Jeju Natl Univ, Sustainable Agr Res Inst, Cheju 690756, South Korea

[3] Jeju Natl Univ, Res Inst Subtrop Agr & Anim Biotechnol, Cheju 690756, South Korea

来源：

KOREAN JOURNAL OF HORTICULTURAL SCIENCE & TECHNOLOGY | 2014年 / 32卷 / 04期

关键词：

hydroponics; light use efficiency; modeling; shoot dry weight per area; shoot fresh weight per area; LIGHT INTERCEPTION; CROP GROWTH; RED BEET; LETTUCE; ONION;

D O I：

10.7235/hort.2014.14013

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

The objective of this study was to make growth and yield models for common ice plant (Mesembryanthemum crystallinum L.) using expolinear functional equations in a closed-type plant production system. Three-band radiation type fluorescent lamps with a 12-hours photoperiod were used, and the light intensity was 200 mu mol.m(-2).s(-1). Nutrient film systems with three layers were used for plant growth. Environmental conditions, such as air temperature, relative humidity and CO2 concentration were controlled by an ON/OFF operation. Leaf area, shoot fresh and dry weights, light use efficiency of common ice plant as function of days after transplanting, accumulative temperature and accumulative radiation were analyzed. Leaf area, shoot fresh and thy weights per area were described using an expolinear equation. A linear relationship between shoot dry and fresh weights was observed. Light use efficiency of common ice plant was 3.3 g.MJ(-1) at 30 days after transplanting. It is concluded that the expolinear growth model can be a useful tool for quantifying the growth and yield of common ice plant in a closed plant production system.

引用

页码：493 / 498

页数：6