Effect of EC Levels in Nutrient Solution on the Growth of Juvenile Rose in Hydroponics Using Coir Substrate

Choi, Gyeong Lee; Cho, Myeong Whan; Cheong, Jae Woan; Rhee, Han Cheol; Kim, Young Cheol; Roh, Mi-Young; Kang, Yun Im

doi:10.12791/ksbec.2012.21.4.317

Cited by 8 publications

(5 citation statements)

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“…The nutrients in the growing medium were considered to have contributed to early growth. Ions eluted from the medium affect the EC level of water in the medium and affect the plant growth [24,25,26]. This result is similar to the result of the excellent growth of tomato seedlings in organic growing media such as the Q-plug growing medium, which had a high EC level among the media used in the experiment [27].…”

Section: Resultsmentioning

confidence: 66%

Growth Characteristics of Adenophora triphylla var. japonica Hara Seedlings as Affected by Growing Medium

Lee

Kim

Jeong

et al. 2019

Plants

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Adenophora triphylla var. japonica Hara is a highly valued medicinal plant that is used to treat or prevent bronchitis, cough, cancer, and obesity. However, there has been no study on the production of Adenophora triphylla var. japonica Hara seedlings in a closed-type plant production system (CPPS). This study was conducted to examine the growth characteristics of Adenophora triphylla var. japonica Hara seedlings as affected by different growing media. The seeds were sown on a 128-cell plug tray filled with urethane sponges (US), LC grow foam (LC), rockwool (RW), or terra-plugs (TP). The seedlings were cultured for a duration of 54 days under temperature 25 ± 1°C, a photoperiod of 12/12 h (light/dark), and light intensity of 180 µmol·m−2·s−1 photosynthetic photon flux density provided by RB LEDs (red:blue = 8:2) in a closed-type plant production system (CPPS). The germination rate of Adenophora triphylla var. japonica Hara was significantly highest in the TP. Also, seedling shoot growth indicators of plant height, leaf length, leaf width, number of leaves, fresh weight (FW), and dry weight (DW) of the shoot, and leaf area were markedly the greatest in the TP and the lowest in the US. The SPAD (soil-plant analysis development) value was higher in the TP and US than in the LC or RW. In addition, the seedling root growth characteristics of total root length, root surface area, root volume, and number of root tips were significantly greatest in the TP. Moreover, the maximum root diameter, FW and DW of roots were the greatest in the TP. In conclusion, the results suggest that TP are viable for the growth development of Adenophora triphylla var. japonica Hara seedlings.

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Section: Resultsmentioning

confidence: 66%

Growth Characteristics of Adenophora triphylla var. japonica Hara Seedlings as Affected by Growing Medium

Lee

Kim

Jeong

et al. 2019

Plants

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“…The EC of QP medium was 0.31 dS•m -1 , followed by the RW and TP media at 0.15 and 0.17 dS•m -1 , respectively, and the others were 0.06 dS•m -1 or less (Table 3). Ions eluted from the medium affect the EC of the water in the medium, and plant growth is affected by the EC level (Handreck, 1993;Ao et al, 2008;Choi et al, 2012). The higher the EC of the nutrient solution for cucumber seedlings, the greater their growth, which was reported by Hwang et al (2006).…”

Section: Growth Of Lettucementioning

confidence: 81%

Selection of Newly Developed Artificial Medium for Lettuce Production in a Closed-type Plant Production System

Kim¹,

Lee²,

Kim³

et al. 2019

HST

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This study evaluated different media for lettuce cultivation in a closed-type plant production system. Lettuce seeds were sown in 128-cell plug trays filled with six different media, and then transplanted at 11 days after sowing in a closed-type plant production system. The used media were commercial media (urethane foam, rockwool, and Q plug), and newly developed media (PU 14-S1, TP-S1, and PU-7B). Higher values were observed for total porosity, container capacity, and air space in urethane foam and PU 14-S1. Bulk density was the greatest in the TP-S1, followed by the Q plug and rockwool. The pH and electrical conductivity (EC) of the medium ranged from 5.17 to 6.50 and 0.01 to 0.31 dS•m -1, respectively. Germination properties were strong in the rockwool, Q plug, and PU-7B media. The initial and final growth of lettuce measured at 11 and 32 days after sowing, respectively, were the best in the Q plug medium, followed by the rockwool and TP-S1 media. These media had higher EC values than the others. The applicability of newly developed medium PU-7B was confirmed for lettuce cultivation in a closed-type plant production system when the EC of PU-7B was regulated similarly to the EC of Q plug medium.

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“…The CGM and TP medium had higher EC levels than did the inorganic media (RW, RC, and LC) (Table 1). Earlier studies reported that plants are impacted by eluted ions from the medium (Hamdreck, 1993;Ao et al, 2008;Choi et al, 2012). Moreover, root morphology affects cucumber seedling growth.…”

Section: Shoot Growth Characteristicsmentioning

confidence: 99%

Assessment of Growing Media and Fertigation for Production of Root Pruning Splice-Grafted Cucumber Seedlings

Jeong¹,

Lee²,

Yoon³

et al. 2021

HST

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In the Republic of Korea, the root pruning splice-grafting method is commonly used on watermelon (Citrullus lanatus) and cucumber (Cucumis sativus) seedlings to produce grafted plants. The growing medium is an important factor for rooting a transplant. In this study, we investigated the shoot growth and root development of cucumber seedlings in different growing media. 'Shindong' cucumber seedlings as scions were grafted onto 'Shingiwon' bottle gourd (Lagenaria siceraria) seedlings as rootstocks using the root-pruning one-cotyledon splice-grafting method. The grafted seedlings were transplanted into five different media: commercial growing medium (CGM), rockwool (RW), LC grow foam (LC), RC grow foam (RC), and terra-plug (TP). We also investigated the effect of fertigation on plant growth in the different media. Root morphology was significantly influenced by all five media. The total root length, root volume, and root surface area were greatest in the CGM. However, inorganic media (RW, LC, and RC) resulted in low root growth. Fertigation increased root growth, especially in the CGM. Root growth affected the shoot growth of cucumber seedlings. The shoot growth of cucumber seedlings was greatest in the CGM and TP medium, which also had good root development. In conclusion, CGM with fertigation was advantageous for cucumber root development and growth, and TP showed promise for use as a growing medium in the seedling stage.

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Effect of EC Levels in Nutrient Solution on the Growth of Juvenile Rose in Hydroponics Using Coir Substrate

Cited by 8 publications

References 0 publications

Growth Characteristics of Adenophora triphylla var. japonica Hara Seedlings as Affected by Growing Medium

Growth Characteristics of Adenophora triphylla var. japonica Hara Seedlings as Affected by Growing Medium

Selection of Newly Developed Artificial Medium for Lettuce Production in a Closed-type Plant Production System

Assessment of Growing Media and Fertigation for Production of Root Pruning Splice-Grafted Cucumber Seedlings

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