[논문]Effects of Fertilizer Treatment on the Growth Performance of 1-Year-Old Containerized Seedlings in Chionanthus retusus

Choi, Chung Ho

doi:10.7732/kjpr.2020.33.6.586

Effects of Fertilizer Treatment on the Growth Performance of 1-Year-Old Containerized Seedlings in Chionanthus retusus 원문보기

韓國資源植物學會誌 = Korean journal of plant resources, v.33 no.6, 2020년, pp.586 - 596

Choi, Chung Ho (Gyeonggi-do Forestry Environment Research Center)

Abstract ▼ AI-Helper

Chionanthus retusus has been used for landscaping and gardening trees, foods and medicines. This study was carried out to analyze the effect of fertilization on the growth performance of container seedlings (1-year-old) in C. retusus. We used multifeed 19 (MF) as a fertilizer, and measured the height, root collar diameter (RCD), biomass, seedling quality index (SQI) chlorophyll contents and chlorophyll fluorescence of the seedlings. The findings of this paper showed that the height, RCD, H/D ratio, T/R ratio and the fresh and dry weight of seedlings increased after fertilization. The moisture content of the stem and root did not show any significant difference among fertilizations, except in the case of the leaf. Production distribution such as the dry weight ratio of leaves and the stem dry weight ratio of fertilized seedlings had a higher value than that of non-treatment. SQI was the highest in MF 1,000 mg/L and 2,000 mg/L treatment. Chlorophyll contents (SPAD value) also increased with the increase in fertilization concentrations. Chlorophyll fluorescence (Fv/Fm) showed the highest value of 0.8 in MF 2,000 mg/L treatment.

주제어

표/그림 (6)

표 Table 1. Quality of C. retusus seeds used for this experiment
표 Table 2. Height and root collar diameter of C. retusus seedlings grown at different fertilization concentrations on September 30
그림 Fig. 1. T/R ratio and moisture contents of C. retusus seedlings grown at different fertilization concentrations.
표 Table 3. Fresh and dry weight of C. retusus seedlings grown at different fertilization concentrations
표 Table 4. Leaf weight ratio (LWR), stem weight ratio (SWR), root weight ratio (RWR) and seedling quality index (SQI) of C. retusus seedlings grown at different fertilization concentrations
그림 Fig. 2. Chlorophyll contents (SPAD value) and photochemical efficiency (F_v/F_m) of C. retusus seedlings grown at different fertilization concentrations.

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문제 정의

In this study, the height and RCD of seedlings were investigated to determine whether fertilization affects seedling growth and how much impact it has. Table 2 shows the results of height and RCD growth according to the fertilizer treatment of 1-year-old containerized seedlings in C.
This study, therefore, analyzes the growth and physiological characteristics of containerized seedlings to determine the correlation between fertilization and vitality. This research contributes to the efficient and stable mass production of C. retusus, which is used in various fields such as street, gardening and landscaping trees, as well as for foods and medicines.
, 2003). This study also showed the effects of fertilization on growth patterns and relative growth rate. The H/D ratio was higher in fertilization at 5.

제안 방법

For the chlorophyll content in the leaves of seedlings that were fertilized, we used a SPAD meter (SPAD-502, Minolta, Japan) on July 30, 2018 and measured five leaves at the top 3 to 7 of the main body from each of the ten seedlings under treatment as the SPAD value. After examining the chlorophyll content, we then examined the chlorophyll fluorescence response of the leaves using a continuous source chlorophyll fluorometer (OSI 30P, ADC, UK). To measure the fluorescence response, we first blocked the light with sample clips using the same leaves used to measure the chlorophyll content, and took measurements after dark-adapting the leaves for 30 minutes.
For the chlorophyll content in the leaves of seedlings that were fertilized, we used a SPAD meter (SPAD-502, Minolta, Japan) on July 30, 2018 and measured five leaves at the top 3 to 7 of the main body from each of the ten seedlings under treatment as the SPAD value. After examining the chlorophyll content, we then examined the chlorophyll fluorescence response of the leaves using a continuous source chlorophyll fluorometer (OSI 30P, ADC, UK).
The experimental results were subjected to analysis of variance (ANOVA). The survey on differences between treatments was conducted using 20 seedlings for growth characteristics and 10 seedlings for chlorophyll content and fluorescence response. When significant differences were observed, the means were separated using Duncan’s multiple range test at the 5% or 1% significance level.
This study evaluated the vitality of containerized seedlings in C. retusus based on the chlorophyll content and chlorophyll fluorescence response after fertilization. As shown in Fig.
, 2004), with insufficient research on producing seedlings using methods such as fertilization. This study, therefore, analyzes the growth and physiological characteristics of containerized seedlings to determine the correlation between fertilization and vitality. This research contributes to the efficient and stable mass production of C.
To determine whether there is balanced growth of containerized seedlings in C. retusus in each concentration, we evaluated the leaf dry weight ratio (LWR), stem dry weight ratio (SWR), root dry weight ratio (RWR) and seedling quality index (SQI) (Table 4). Control of LWR, SWR, and RWR, the distribution ratios of matters produced by photosynthesis in plants, is the plants’ adaptive response to given environmental conditions, such as light, moisture and nutrients (Gleeson, 1993; Hilbert, 1990; Reynolds and Antonio, 1996).
After examining the chlorophyll content, we then examined the chlorophyll fluorescence response of the leaves using a continuous source chlorophyll fluorometer (OSI 30P, ADC, UK). To measure the fluorescence response, we first blocked the light with sample clips using the same leaves used to measure the chlorophyll content, and took measurements after dark-adapting the leaves for 30 minutes. The light of 2,000 µmol·m^-2s^-1was examined for measurement (Choi and Kim, 1995; Demmig and Björkman, 1987; Smillie and Hetherington, 1983), and we measured and comparatively analyzed the variables of initial fluorescence response (F_o), maximum fluorescence response (F_m), the maximum change in fluorescence response (F_v = F_m - F_o) and photochemical reaction efficiency (F_v / F_m).
Fertilizer treatment was carried out from June 1 to September 15, 2018, when the transplanted seedlings were fully adapted. We adjusted MF (N:P:K=19:19:19, Haifa Chemical CO., Israel), which is mostly used in Korea for cultivation in forestry facilities, in concentrations of 0, 1,000, 2,000, 3,000, and 4,000 ㎎/L and fertilized them once a week. One liter of fertilizer was injected into each of the 20 units of 1-year-old seedlings; water was not injected on days when there was fertilization.

대상 데이터

The species tested in this experiment is C. retusus, and the seeds were collected from self-right standing trees growing in the Gyeonggi Mulhyanggi Arboretum located in Osan, Gyeonggi-do in mid-October 2016. The seeds were then stored in the ground.

데이터처리

, USA) software. The experimental results were subjected to analysis of variance (ANOVA). The survey on differences between treatments was conducted using 20 seedlings for growth characteristics and 10 seedlings for chlorophyll content and fluorescence response.
Values with different letters in the rows indicate statistical differences at the 5% or 1% levels by Duncan’s multiple range test.
When significant differences were observed, the means were separated using Duncan’s multiple range test at the 5% or 1% significance level.

성능/효과

As a result of examining general growth characteristics, it was found that height, RCD, fresh weight, dry weight and matter distribution ratio were high after fertilization, and this effect was found to be greatest in the 2,000 ㎎/L treatment. However, seedlings with excellent height, RCD and biomass do not always have good quality.
In this study, photochemical efficiency was found to be higher in treatment than non-treatment (p < 0.05), showing the highest photochemical efficiency at 0.8 in the 2,000 ㎎/L treatment (Fig. 2).
, 1997). In this study, the nitrogen content of the leaves of C. retusus may have increased with the fertilization level of MF containing nitrogen, thereby resulting in the increase of chlorophyll content. Hwang et al.
01), with no statistical difference from 2,000 ㎎/L and above. Seedlings with a low T/R ratio are considered to have good quality in general and, in this study, treatment displayed a higher T/R ratio than non-treatment. This may be due to the growth of the above ground parts, which became more active than the underground parts through active photosynthesis activity with sufficient nutrition.
The chlorophyll content (SPAD value) was found to be higher in treatment with SPAD values of 32.2, 44.7, 49.1, 50.3, and 49.8 from non-treatment to 4,000 ㎎/L treatment (p < 0.01), with no significant difference found among concentrations of 2,000 ㎎/L and above.
The relative growth rate, which is the growth rate for a certain period of time, also showed a significant difference for the fertilization (p < 0.01); the relative growth rate of both the height and RCD was the highest in the 2,000 ㎎/L treatment.

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구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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