Measurement system of whole-canopy carbon dioxide exchange rates in grafted cucumber transplants in which scions were exposed to different water regimes using a semi-open multi-chamber

Mun, Boheum; Jang, Yoonah; Gotō, Eiji; Ishigami, Yasuhiro; Chun, Changhoo

doi:10.1016/j.scienta.2011.08.017

Cited by 8 publications

(6 citation statements)

References 24 publications

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“…A continuous CO 2 measurement system with a semi-open multi-chamber was used for the healing and acclimatization of the grafted pepper transplants and the measurement of the CO 2 exchange rate Mun et al, 2011;van Iersel and Bugbee, 2000). Four light-transmitting boxes (inside dimension of W 350 × L 780 × H 220 mm, volume of 60 L) made of 10 mm-thick acryl plastic were placed in the growth chamber (Hanbaek Co., Ltd., Bucheon, Korea) where the temperature was set at 22℃.…”

Section: Healing and Acclimatization Of Grafted Pepper Transplantsmentioning

confidence: 99%

Effects of Light Quality and Intensity on the Carbon Dioxide Exchange Rate, Growth, and Morphogenesis of Grafted Pepper Transplants during Healing and Acclimatization

Jang¹,

Mun²,

Seo³

et al. 2013

Korean Journal of Horticultural Science and Technology

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Abstract. This study evaluated the influence of light quality and intensity during healing and acclimatization on the CO 2 exchange rate, growth, and morphogenesis of grafted pepper (Capsicum annuum L.) transplants, using a system for the continuous measurement of the CO 2 exchange rate. C. annuum L. 'Nokkwang' and 'Tantan' were used as scions and rootstocks, respectively. Before grafting, the transplants were grown for four weeks in a growth chamber with artificial light, where the temperature was set at 25/18℃ (light/dark period) and the light period was 14 hours·d -1. The grafted pepper transplants were then healed and acclimatized under different light quality conditions using fluorescent lamps (control) and red, blue, and red + blue light-emitting diodes (LEDs). All the transplants were irradiated for 12 hours per day, for six days, at a photosynthetic photon flux (PPF) of 50, 100, or 180 μmol·m , the CO 2 exchange rate of the transplants irradiated with red LEDs was lowest and it was 37% lower than those irradiated with fluorescent lamps. The CO 2 exchange rates of transplants irradiated with blue LEDs was the highest and 20% higher than those irradiated under fluorescent lamps. The graft take was not affected by the light quality. The grafted pepper transplants irradiated with red LEDs had a lower SPAD value, leaf dry weight, and dry matter content. The transplants irradiated with blue LEDs had longer shoot length and heavier stem fresh weight than those irradiated with the other treatments. Leaves irradiated with the red LED had the smallest leaf area and showed leaf epinasty. In addition, the palisade and spongy cells of the pepper leaves were dysplastic and exhibited hyperplasia. Grafted pepper transplants treated with red + blue LEDs showed similar growth and morphology to those transplants irradiated with fluorescent lamps. These results suggest that high-quality grafted pepper transplants can be obtained by healing and acclimatization under a combination of blue and red lights at a high PPF level. Additional key words:Capsicum annuum L., graft, light emitting diode (LED), photosynthesis, photosynthetic photon flux (PPF) *Corresponding author: changhoo@snu.ac.kr † These authors are contributed equally to this work. ※ Received

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Section: Healing and Acclimatization Of Grafted Pepper Transplantsmentioning

confidence: 99%

Effects of Light Quality and Intensity on the Carbon Dioxide Exchange Rate, Growth, and Morphogenesis of Grafted Pepper Transplants during Healing and Acclimatization

Jang¹,

Mun²,

Seo³

et al. 2013

Korean Journal of Horticultural Science and Technology

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“…In the proper scientific world, there are many concerns about the development of these automatic healing facilities. In these way, in 2011 Mun and collaborators [10] used a healing chamber with three boxes, developed by Chiba University, Japan, to test the CO2 exchange rate in the healing chambers during the healing and acclimatization of vegetable seedling. The CO2 exchange rate gives accurate information on the intensity of the photosynthesis process of the seedlings.…”

Section: Automated Healing Chambersmentioning

confidence: 99%

“…5. View of the system for measuring the CO2 exchange rate of grafted seedlings [9] An similar equipment with 10 distinct rooms was used by Van Iersel [10] from the Department of Horticulture at the University of Georgia, USA. This multi-chamber system allows the installation of multiple experimental variants with different microclimatic and / or biological parameters.…”

Section: Automated Healing Chambersmentioning

confidence: 99%

An overview of the microclimate conditions inside healing chambers

Dumitrescu

Ghiaus

2019

E3S Web Conf.

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In the civil and industrial construction engineering, the comfort of occupants is ensured by achieving appropriate microclimate conditions. The human physical comfort (thermal, visual, acoustic) is achieved when the person from an enclosure is in a state of equilibrium and is able to perform tasks with maximum possible efficiency and without any kind of stress. Similarly, in the case of crops grown inside protected spaces, for plants, just as in the case of human being, specific microclimate conditions need to be ensured for their optimum development during the vegetation period. Plant development is a result of its own genetic features, but this is influenced by microclimate conditions inside of the greenhouses. Even more, in the case of healing and acclimatization rooms for grafted vegetables, the specific microclimate conditions must be strictly monitored. Technologically, it is recommended an optimum indoor temperature between 23°C and 25°C, with a maximum value that must not exceed 28°C, under conditions of relative humidity around 85% - 95%. Other two important aspects are the CO2 concentration and the level of solar radiation. The value of the CO2 concentration is an indicator of the healing process. For the grafting process, it is useful to know the time of the connection of the donor and receiver. Led by the the light levels, the photosynthetic activity of the grafted seedlings in the healing period, lead to a decreasing of CO2 concentration. This means that the two parts of the planting material are jointed, healed. So, the farmers can manipulate the environment in the healing rooms. This paper presents an overview of the scientific and technical issues that have to be achieved in order to reach suitable control and management of microclimate conditions in healing rooms for grafted vegetables.

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“…Highly technical grafting skills and environmental controls during the healing and acclimatization period are required for the successful production of grafted plants. Grafted plants were usually healed and acclimatized in the past under specific environmental conditions such as high relative humidity (RH ≥ 95%) and low light intensity in order to produce a healthy plant that survived and grew [11]. However, several recent papers have reported that the photosynthesis, growth, and quality of grafted plants were improved by increasing the light intensity under highly controlled conditions during the healing and acclimatization periods [12,13].…”

Section: Introductionmentioning

confidence: 99%

Effect of Acclimatization Temperature and Light Intensity on the Graft-Take of Cucumber Seedlings

Khater¹

2017

J Environ Anal Toxicol

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Measurement system of whole-canopy carbon dioxide exchange rates in grafted cucumber transplants in which scions were exposed to different water regimes using a semi-open multi-chamber

Cited by 8 publications

References 24 publications

Effects of Light Quality and Intensity on the Carbon Dioxide Exchange Rate, Growth, and Morphogenesis of Grafted Pepper Transplants during Healing and Acclimatization

Effects of Light Quality and Intensity on the Carbon Dioxide Exchange Rate, Growth, and Morphogenesis of Grafted Pepper Transplants during Healing and Acclimatization

An overview of the microclimate conditions inside healing chambers

Effect of Acclimatization Temperature and Light Intensity on the Graft-Take of Cucumber Seedlings

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