Evaluating Growth and Photosynthesis of Kimchi Cabbage According to Extreme Weather Conditions

Abstract

The aim of this study was to develop and validate growth and photosynthetic models of Kimchi cabbages under extreme temperature conditions at different growth stages. Kimchi cabbage plants were subjected to low and high air temperatures 7–10 days after transplanting (DAT) and 40–43 DAT using extreme weather simulators. Except during these periods, the air temperature, relative humidity, solar radiation, and precipitation were set according to previous meteorological data. The experiments were performed over two years: in the first year, data were used to develop the models; the second-year experimental data were used for validation. The growth parameters and relative growth rate of Kimchi cabbage decreased due to low and high air temperature treatments. Photosynthetic CO2 response curves, which were measured using a portable gas exchange system, were used to calculate three biochemical parameters from measured data: photochemical efficiency, carboxylation conductance, and dark respiration. These parameters were used to develop the photosynthetic models (modified Thornley’s models) representing predictions of net photosynthetic rate by CO2 concentration and growth stage. The simulated photosynthetic rate with extreme high temperature treatment (35/31 °C) was 19.7 μmol m−2 s−1 which was evaluated approximately 3% deduction compared with control. Results of this study indicate that the growth and photosynthetic models developed here could be applied to evaluate retarded growth and net photosynthetic rate under extreme temperature conditions.

Morpho-Physiological Response and Production Potential of Promising Mungbean Cultivars under Varying Planting Dates

“…Beyond the optimum limit leaf temperature (optimum planting time) inhibits the photosynthetic rate by stimulating photorespiration and cause damages to photosynthetic apparatus (Schrader et al 2004;Rasmusson et al 2020). Rubisco activity is reduced at moderate elevation in leaf temperature resultantly reduce photosynthetic rate (Salvucci et al 2001;Wi et al 2020). All these studies showed that photosynthesis and water use efficiency are leaf temperature dependent attributes.…”

Growth, physiological, and temperature characteristics in chinese cabbage pakchoi as affected by Cd- stressed conditions and identifying its main controlling factors using PLS model

“…In addition, Cd stress was suggested to significantly influence the electron transfer in the mitochondrion and chloroplast, possibly via causing chloroplast swelling and deformation, disintegration of cystoid, increase of starch granules, and loose and disordered arrangement of mitochondrial basal lamellae in plants [11,36]. It has also been pointed out that Cd stress can effectively inhibit photosynthetic processes such as light energy uptake, energy conversion, Rubisco's enzyme carboxylation reaction, and CO 2 diffusion in leaves (Sagardoy et al, 2010;Wi et al, 2020) [43,44]. These may explain the rapid decrease in chlorophyll synthesis and the photosynthetic rate in plants under Cd stress.…”

Analysis of Growth Characteristics of Kimchi Cabbage Using Drone-Based Cabbage Surface Model Image

“…If the maximum and minimum inflection points of cabbage growth acceleration ar differentiated by length, the value will be 0. 17) is obtained by solving the quadratic equation for Equation (16).…”

“…The growth of Kimchi cabbage is affected by natural factors such as temperature [12], soil moisture [13], and irrigation [14] and depends on the growing season and moisture conditions. This means that cabbage growth has properties that vary in response to climatic and soil conditions [15,16]. The growth process of Kimchi cabbage shows spatial variations in the stems and leaves depending on factors related to soil, moisture, and temperature.…”