scholarly journals Supplemental UV-A Affects Growth and Antioxidants of Chinese Kale Baby-Leaves in Artificial Light Plant Factory

Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 294
Author(s):  
Rui He ◽  
Meifang Gao ◽  
Yamin Li ◽  
Yiting Zhang ◽  
Shiwei Song ◽  
...  
Keyword(s):  
Growth Parameters ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Economic Benefits ◽  
Antioxidant Compounds ◽  
Artificial Light ◽  
Brassica Alboglabra ◽  
Chinese Kale ◽  
Significant Difference ◽  
Plant Factory

To investigate the effects of supplementary UV-A intensity on growth and antioxidant compounds in Chinese kale (Brassica alboglabra Bailey) baby-leaves, three different UV-A intensity treatments (5, 10, 15 W·m−2, respectively) were applied 10 days before harvest in artificial light plant factory. In Chinese kale baby-leaves, supplemental 5 and 10 W·m−2 UV-A (UVA-5 and UVA-10) were beneficial for inter-node length, stem diameter, canopy diameter, fresh weight and dry weight, particularly in UVA-10 treatment, while these above-mentioned growth parameters all significantly decreased in UVA-15 treatment. The soluble sugar content decreased under UVA-5, but there was no significant difference under UVA-10 and UVA-15. Soluble protein contents decreased under UVA-5 and UVA-10, but significantly increased under UVA-15. UVA-10 played a predominant role in increasing FRAP and contents of total phenolics and total flavonoids compared to other treatments. Contents of total glucosinolates (GLs), aliphatic GLs and indolic GLs in Chinese kale baby-leaves significantly increased with UV-A intensity increasing, and the highest contents were found under UVA-15. The percentage of total aliphatic GLs (about 80%) was significantly higher than those of total indolic GLs. Glucobrassicanapin and sinigrin were two major individual GLs in Chinese kale baby-leaves, variation trends of which were consistent with the contents of total GLs and aliphatic GLs. From the heatmap analysis, and taking economic benefits into account, UVA-10 might be optimal for the production of high-quality Chinese kale baby-leaves in an artificial light plant factory.

Effect of Ammonium and Nitrate Ratio on Nutritional Quality of Chinese Kale

2012 ◽  
Vol 461 ◽  
pp. 13-16 ◽  
Author(s):  
Shi Wei Song ◽  
Guo Xiu Liao ◽  
Hou Cheng Liu ◽  
Guang Wen Sun ◽  
Ri Yuan Chen
Keyword(s):  
Amino Acids ◽  
Nutrient Solution ◽  
Nutritional Quality ◽  
Free Amino ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Brassica Alboglabra ◽  
Chinese Kale ◽  
Better Than

Effect of ammonium and nitrate ratio (0:100, 25:75, 50:50 and 75:25) on nutritional quality of Chinese kale (Brassica alboglabra Bailey) with 3 cultivars were studied in hydroponics. The results indicated that, the Vitamin C content in product organ (leaf and stalk) of Chinese kale was decreased by the enhancement of ammonium in nutrient solution, and the decrease was not significant for 25% enhancement of ammonium. 25% ammonium enhancement increased the soluble sugar content in product organ significantly, compared with other treatments. Free amino acids and protein content of Chinese kale increased gradually with the increasing of ammonium proportion in nutrient solution. Integrated nutritional quality of Chinese kale in 25% ammonium enhancement treatment was better than others under hydroponics condition.

Germination vigour difference of superior and inferior rice grains revealed by physiological and gene expression studies

2018 ◽  
Vol 156 (3) ◽  
pp. 350-357
Author(s):  
Y. F. Zhao ◽  
H. Z. Sun ◽  
H. L. Wen ◽  
Y. X. Du ◽  
J. Zhang ◽  
...  
Keyword(s):  
Gene Expression ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Yield Potential ◽  
Rice Grains ◽  
Number Of Factors ◽  
Significant Difference ◽  
Early Germination ◽  
Relative Water ◽  
Gene Expression Studies

AbstractSuperior and inferior rice grains have different weights and are located on the upper primary branch and lower secondary branches of the panicle, respectively. To study differences in germination vigour of these two types of grain, a number of factors were investigated from 0 to 48 h of germination. The present study demonstrated that in inferior grains the starch granule structure was looser at 0 h, with full water absorption at 48 h, while in superior grains the structure was tight and dense. Relative water content increased, and dry matter decreased, more rapidly in inferior grains than in superior ones. Abscisic acid and gibberellin levels, as well as α-amylase activity, also changed more rapidly in inferior grains, while soluble sugar content and amylase coding gene expression increased more rapidly in inferior than superior grains during early germination. The expression of OsGAMYB was higher in inferior grains at 24 h but higher in superior grains at 48 h. The phenotypic index of seedlings was higher in seedlings from superior grains at the two-leaf stage. However, the thousand-grain weight and yield per plant in superior and inferior plants showed no significant difference at harvest. The present study indicates that inferior grains germinate faster than superior ones in the early germination stage. Although inferior grains produced weaker seedlings, it is worthwhile using them in rice production due to their comparative yield potential over that of superior grains.

scholarly journals Effects of Biochar on Soluble Sugar Content in Peach Seedlings

2019 ◽  
Vol 136 ◽  
pp. 07010
Author(s):  
Jing Sun ◽  
Zhiyu Li ◽  
Jinpeng Zhu ◽  
Yuxi Wang ◽  
Tonghao Cui ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Plant Height ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Stem Diameter ◽  
Corn Straw ◽  
Paddy Straw ◽  
Soluble Sugar Content ◽  
Rape Straw ◽  
Significant Difference

A pot experiment was conducted to study the effects of different biochar types [addition of rape straw biochar (RB), addition of paddy straw biochar (PB), addition of wheat straw biochar (WB) and addition of corn straw biochar (MB)] on the soluble sugar content and plant height of peach seedlings. The result showed that the soluble sugar content in roots and leaves of peach seedlings treated with biochar was lower than the control. However, the soluble sugar content in stems was higher than control compared with the control. In the soluble sugar content in the aboveground part, there was no significant difference between the treatment of adding biochar and the control except for the treatment of PB. All the treatment of adding biochar increased the plant height of peach seedlings except the treatment of MB than the control and the treatment of RB and PB were at a higher level. Compared to control, all biochar addition treatments increased stem diameter of peach seedlings and the treatment of RB and PB were at a higher level. Therefore, the treatment of RB and PB was beneficial to the growth of peach seedlings.

scholarly journals Effects of storage temperature on the physiological characteristics and vegetative propagation of desiccation-tolerant mosses

2018 ◽  
Vol 15 (3) ◽  
pp. 797-808 ◽  
Author(s):  
Yuewei Guo ◽  
Yunge Zhao
Keyword(s):  
Vegetative Propagation ◽  
Storage Temperature ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Storage Period ◽  
Physiological Characteristics ◽  
Regenerative Capacity ◽  
Moss Crusts ◽  
Significant Difference ◽  
Mda Content

Abstract. Mosses, as major components of later successional biological soil crusts (biocrusts), play many critical roles in arid and semiarid ecosystems. Recently, some species of desiccation-tolerant mosses have been artificially cultured with the aim of accelerating the recovery of biocrusts. Revealing the factors that influence the vegetative propagation of mosses, which is an important reproductive mode of mosses in dry habitats, will benefit the restoration of moss crusts. In this study, three air-dried desiccation-tolerant mosses (Barbula unguiculata, Didymodon vinealis, and Didymodon tectorum) were hermetically sealed and stored at five temperature levels (0, 4, 17, 25, and 30 °C) for 40 days. Then, the vegetative propagation and physiological characteristics of the three mosses were investigated to determine the influence of storage temperature on the vegetative propagation of desiccation-tolerant mosses and the mechanism. The results showed that the vegetative propagation of the three mosses varied with temperature. The most variation in vegetative propagation among storage temperatures was observed in D. tectorum, followed by the variation observed in B. unguiculata. In contrast, no significant difference in propagation among temperatures was found in D. vinealis. The regenerative capacity of the three mosses increased with increasing temperature from 0 to 17 °C, accompanied by a decrease in malondialdehyde (MDA) content, and decreased thereafter. As the temperature increased, the chlorophyll and soluble protein contents increased in B. unguiculata but decreased in D. vinealis and D. tectorum. As to storage, the MDA and soluble sugar contents increased after storage. The MDA content of the three mosses increased at each of the investigated temperatures by more than 50 % from the initial values, and the soluble sugar content became higher than before in the three mosses. The integrity of cells and cell membranes is likely the most important factor influencing the vegetative propagation of desiccation-tolerant mosses. A 40-day storage period caused cell injury. Our results suggest that storage temperature can enhance or suppress such injury and change the regenerative capacity of the three mosses. The data indicate that the suitable storage temperature is 4 °C for B. unguiculata and 17 °C for both D. vinealis and D. tectorum.

scholarly journals Effects of Chitosan on Soluble Sugar Content in Prunus davidiana Seedlings

2019 ◽  
Vol 136 ◽  
pp. 06001
Author(s):  
Jing Sun ◽  
Aihui Li ◽  
Qianhe Jing ◽  
Yingying Huang ◽  
Jiaxi Han ◽  
...  
Keyword(s):  
Sugar Content ◽  
Soluble Sugar ◽  
Pot Experiment ◽  
High Concentration ◽  
Soluble Sugar Content ◽  
Significant Difference ◽  
Relative Conductivity ◽  
Good For ◽  
Soil Conductivity ◽  
Prunus Davidiana

A pot experiment was conducted to study the effects of different concentrations of chitosan solutions (0, 1, 2, 4, 6 g/L) on soluble sugar content in Prunus davidiana seedlings. The result showed that there was no significant difference of the soluble sugar content in roots, stems, leaves and shoot in P. davidiana seedlings between at 1 g/L concentration and the control. All concentration treatments were reduced the soluble sugar content in roots and stems of P. davidiana seedlings compared with the control. On the contrary, all concentration treatments were improved the soluble sugar content in leaves and shoot of P. davidiana seedlings compared with the control and the concentration treatment of 2 g/L and 4 g/L was at a higher level. All concentration treatments were improved the content in relative conductivity of blade in P. davidiana seedlings and the concentration treatment of 4 g/L was at a higher level. On the contrary, all concentration treatments were reduced the content in soil conductivity. Therefore, the chitosan solutions concentration of 2 g/L and 4 g/L concentration was beneficial to soluble sugar content in P. davidiana seedlings. On the contrary, high concentration of chitosan solutions was not good for soluble sugar content.

scholarly journals Polyhalite Positively Influences the Growth, Yield and Quality of Sugarcane (Saccharum officinarum L.) in Potassium and Calcium-Deficient Soils in the Semi-Arid Tropics

2021 ◽  
Vol 13 (19) ◽  
pp. 10689
Author(s):  
Rajan Bhatt ◽  
Paramjit Singh ◽  
Omar M. Ali ◽  
Arafat Abdel Hamed Abdel Latef ◽  
Alison M. Laing ◽  
...  
Keyword(s):  
Insect Pests ◽  
Growth Parameters ◽  
Sugar Content ◽  
Growth Yield ◽  
Saccharum Officinarum ◽  
Economic Benefits ◽  
Growth And Yield ◽  
Potassium Fertilizer ◽  
Yield And Quality ◽  
Semi Arid

In semi-arid tropics, sugarcane yield and quality are affected by deficiencies in soil nutrients, including potassium and calcium. We examined the effects of two different potassium fertilizers, a traditional muriate of potash (MOP) and polyhalite (which contains potassium and calcium), on sugarcane growth, yield, and quality. Experimental treatments compared a control 0 kg K ha−1 (T1) to potassium applied as MOP only at 80 kg K ha−1 (T2) and at 120 kg K ha−1 (T3), and potassium applied as an equal split of MOP and polyhalite at 80 kg K ha−1 (T4) and at 120 kg K ha−1 (T5). Relative to the control the potassium-enhanced treatments had improved rates of key growth parameters, and of cane yields, which were 4.4, 6.2, 8.2, and 9.9% higher in T2, T3, T4,, and T5, respectively, than in T1. Regardless of fertilizer used, potassium applied at 80 kg K ha−1 achieved the highest sugar purity and commercial cane sugar content. All potassium fertilizer treatments had reduced (although non-significant) incidences of three key sugarcane insect pests. The economic benefits of polyhalite were reduced due to its higher cost relative to MOP. Combining MOP and polyhalite equally to achieve an application rate of 80 kg K ha−1 is recommended to enhance sugarcane growth and yield.

scholarly journals Increasing the comprehensive economic benefits of farmland with Even-lighting Agrivoltaic Systems

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254482
Author(s):  
Jianan Zheng ◽  
Shoudong Meng ◽  
Xinyu Zhang ◽  
Honglong Zhao ◽  
Xiaolong Ning ◽  
...  
Keyword(s):  
Electricity Generation ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Glass Plate ◽  
Clean Energy ◽  
Economic Benefits ◽  
Natural State ◽  
Nitrate Content ◽  
Chinese Government ◽  
New Ideas

Agrivoltaic combines crop planting and electricity generation on the same land, it is considered as an opportunity to resolve the competition for land use between food and energy production. In addition to growing crops, farmers can gain electricity with the installation of agrivoltaic systems on their farmland. They can use this clean energy for agricultural production or sell it for extra income. The Chinese government considers it an important strategy for “Targeted Poverty Alleviation”. However, current methods of agrivoltaic provide uneven and low irradiance for crops, which usually results in reduced yield and low quality. In this study, an improved agrivoltaic system with a grooved glass plate has been designed, manufactured, and investigated, called Even-lighting Agrivoltaic System (EAS). Two experiments were conducted to test the effectiveness of the improvement. We measured the crops’ light environment, the crop growth process, the crop yield and quality, the electricity generation, and calculated the Land Equivalent Ratio (LER) as well as the comprehensive economic benefits on the farmland per hectare. Under the EAS, crops grew fast and the yield was similar or better than that under the natural state. By adding supplementary LED lamps into the EAS, the soluble sugar content of lettuce increased by 72.14% and the nitrate content of lettuce decreased by 21.51%. The average LER of the EAS for common vegetables was 1.64 as demonstrated in this work. Comprehensive economic benefits outperform the installation and maintenance costs, thus, the EAS can increase farmers’ income by an average of 5.14 times. The EAS provides new ideas and directions for the future development of agrivoltaic.

scholarly journals Characterization of Soluble Sugar Content, Related Enzyme Activity and Gene Expression in the Fruits of ‘Minihyang’ Mandarin on Different Rootstocks

Horticulturae ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 47
Author(s):  
Ha Rim Hong ◽  
Eun Ui Oh ◽  
Seung Gab Han ◽  
Su Hyun Yun ◽  
Ho Bang Kim ◽  
...  
Keyword(s):  
Gene Expression ◽  
Enzyme Activity ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Regulation Of Gene Expression ◽  
Fruit Size ◽  
Pcr Analysis ◽  
Total Sugar Content ◽  
Significant Difference ◽  
Days After Anthesis

‘Minihyang’ mandarin bears fruits with small size and high sugar content. ‘Minihyang’ mandarin grafted on trifoliate orange (TO) tends to be vigorous and develops water sprout open. It is associated with insufficient floral differentiation and fruit set. Recently, the use of Flying Dragon (FD) as rootstock with a high dwarf effect has been proposed to improve this situation. Therefore, this study was conducted to evaluate the effect of two different rootstock genotypes on tree growth, fruit yield, and fruit quality at the physiological, biochemical, and molecular levels. As a result of the study, in FD, tree vigor was stably maintained, fruit size was large, and the sugar content was high compared to the TO. Fructose, glucose, and sucrose of fruit continued to increase from development to maturity. In particular, fructose and sucrose were significantly higher in the fruits of the FD than those in TO at 150 and 220 days after anthesis. The total sugar content was also significantly higher in the fruit of the FD. The activities of SPS and SS associated with sucrose synthesis tended to be increased during the fruit maturity season, but there was no significant difference between the two rootstocks. On the other hand, the activities of SS and AI breaking down sucrose were high in FD at 150 and 220 days after anthesis. These results suggest that the unloading of sucrose might be increased and affect the sugar content. However, the results of real-time PCR analysis of gene expression related to sucrose metabolism did not show an association with changes in enzyme activity affecting sugar content. Therefore, further detailed studies on the process after the regulation of gene expression are likely to be needed.

scholarly journals Differential Effects of Low Light Intensity on Broccoli Microgreens Growth and Phytochemicals

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 537
Author(s):  
Meifang Gao ◽  
Rui He ◽  
Rui Shi ◽  
Yiting Zhang ◽  
Shiwei Song ◽  
...  
Keyword(s):  
Light Intensity ◽  
Soluble Sugar ◽  
Dry Weight ◽  
Photosynthetic Photon Flux Density ◽  
Carotenoid Content ◽  
Photon Flux ◽  
Photon Flux Density ◽  
Artificial Light ◽  
Plant Factory ◽  
Phytochemical Contents

To produce high-quality broccoli microgreens, suitable light intensity for growth and phytochemical contents of broccoli microgreens in an artificial light plant factory were studied. Broccoli microgreens were irradiated under different photosynthetic photon flux density (PPFD): 30, 50, 70 and 90 μmol·m−2·s−1 with red: green: blue = 1:1:1 light-emitting diodes (LEDs). The broccoli microgreens grown under 50 μmol·m−2·s−1 had the highest fresh weight, dry weight, and moisture content, while the phytochemical contents were the lowest. With increasing light intensity, the chlorophyll content increased, whereas the carotenoid content decreased. The contents of soluble protein, soluble sugar, free amino acid, flavonoid, vitamin C, and glucosinolates except for progoitrin in broccoli microgreens were higher under 70 μmol·m−2·s−1. Overall, 50 μmol·m−2·s−1 was the optimal light intensity for enhancement of growth of broccoli microgreens, while 70 μmol·m−2·s−1 was more feasible for improving the phytochemicals of broccoli microgreens in an artificial light plant factory.

Effects of Different Light Intensity on the Growth and Nutrients Content of Gynura

2014 ◽  
Vol 955-959 ◽  
pp. 3766-3769 ◽  
Author(s):  
Xiang Rong Cheng ◽  
Jia Liu ◽  
Jun Shu ◽  
Mu Kui Yu
Keyword(s):  
Light Intensity ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Light Condition ◽  
Amino Acid Content ◽  
Canopy Cover ◽  
Water Soluble ◽  
Light Conditions ◽  
Significant Difference ◽  
Number Of Branches

Light condition has significant effects on plant growth and nutrient accumulation. The growth and nutrients content of Gynura (Begonia fimbristipulata) were studied under three light intensities (natural field, 100% full sunlight (L0); 50% canopy cover (L1); 70% canopy cover (L2)) in Fuyang, China. The results showed that plant height, ground diameter and number of branches were no significant difference between L0 and L1 treatments (P>0.05), these variables were significantly lower in L2 treatment than that in L0 treatment (P<0.05). Potassium (K), phosphorus (P), vitamin C (Vc) and soluble sugar content in Gynura’s leaves reduced with decreasing light intensity. The content of protein and iron (Fe) were no significant difference among the three light treatments (P>0.05). The content of calcium (Ca) markedly increased in L1 treatment compared with L0 treatment (P<0.05), and it greatly declined in L2 treatment. The change of light conditions had less impact on the water-soluble amino acid content (except for alanine, serine, and glutamic acid). These results indicate that Gynura is suitable to cultivate under the forest with 50% canopy cover.

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