scholarly journals Changes in Metabolome and Nutritional Quality of Lycium barbarum Fruits from Three Typical Growing Areas of China as Revealed by Widely Targeted Metabolomics

Metabolites ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 46 ◽  
Author(s):  
Yajun Wang ◽  
Xiaojie Liang ◽  
Yuekun Li ◽  
Yunfang Fan ◽  
Yanlong Li ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Light Intensity ◽  
Nutritional Quality ◽  
Climatic Factors ◽  
Northwest China ◽  
High Light Intensity ◽  
Climatic Conditions ◽  
Targeted Metabolomics ◽  
Lycium Barbarum ◽  
Widely Targeted Metabolomics

This study aimed at assessing the climatic factors influencing the wolfberry fruit morphology, and the composition of its nutritious metabolites. The cultivar Ningqi1, widely grown in Northwest China was collected from three typical ecological growing counties with contrasting climatic conditions: Ningxia Zhongning (NF), Xinjiang Jinghe (XF) and Qinghai Nomuhong (QF). During the ripening period, 45 fruits from different plantations at each location were sampled. A total of 393 metabolites were detected in all samples through the widely targeted metabolomics approach and grouped into 19 known classes. Fruits from QF were the biggest followed by those from XF and NF. The altitude, relative humidity and light intensity had negative and strong correlations with most of the metabolites, suggesting that growing wolfberry in very high altitudes and under high light intensity is detrimental for the fruit nutritional quality. Soil moisture content is highly and negatively correlated with vitamins, organic acids and carbohydrates while moderately and positively correlated with other classes of metabolites. In contrast, air and soil temperatures exhibited positive correlation with majority of the metabolites. Overall, our results suggest high soil and air temperatures, low altitude and light intensity and moderate soil moisture, as the suitable conditions to produce Lycium fruits with high content of nutritious metabolites.

scholarly journals High Light Intensity Applied Shortly Before Harvest Improves Lettuce Nutritional Quality and Extends the Shelf Life

2021 ◽  
Vol 12 ◽  
Author(s):  
Qianxixi Min ◽  
Leo F. M. Marcelis ◽  
Celine C. S. Nicole ◽  
Ernst J. Woltering
Keyword(s):  
Ascorbic Acid ◽  
Light Intensity ◽  
Shelf Life ◽  
Nutritional Quality ◽  
Dry Matter ◽  
High Light Intensity ◽  
Matter Content ◽  
High Light ◽  
Dry Matter Content ◽  
Quality Aspects

The effect of light intensity applied shortly before harvest on the nutritional quality, postharvest performance, and shelf life of loose-leaf lettuce (Lactuca sativa L. cv. Expertise RZ Salanova®) was investigated. Lettuce was grown either in a greenhouse with supplemental high-pressure sodium light (Experiment 1, EXP 1) or in a climate room under white LED light (Experiment 2, EXP 2). In both experiments full grown plants were transferred to a climate room for the End of Production (EoP) light treatments during the last week of cultivation. During EoP lighting plants were exposed to different intensities (0, 110, and 270 μmol m–2 s–1 in EXP 1; 50, 210, and 470 μmol m–2 s–1 in EXP 2) from white-red LEDs for 6 (EXP 2) or 7 days (EXP 1). Mature leaves were then harvested and stored in darkness at 10°C to study the postharvest performance. Changes in dry matter content, total ascorbic acid, and carbohydrates (including glucose, fructose sucrose, and starch) levels were determined during EoP lighting and during the subsequent shelf life as indicators of lettuce nutritional quality. Quality aspects (appearance, texture, and odor) were accessed during the shelf life as indicators of postharvest performance. In both experiments, high light intensities applied in EoP lighting increased dry matter percentage and contents of ascorbic acid (AsA) and carbohydrates at harvest and these increased levels were maintained during the shelf life. Increased light intensity in EoP treatment also extended the shelf life. The levels of AsA and carbohydrates at harvest correlated positively with the subsequent shelf life, indicating that the prolonged shelf life relies on the improved energy and antioxidant status of the crop at harvest.

Effect of Climatic Conditions on Phytotoxicity of Terbutryn

Weed Science ◽  
1972 ◽  
Vol 20 (1) ◽  
pp. 60-63 ◽  
Author(s):  
L. F. Figuerola ◽  
W. R. Furtick
Keyword(s):  
Light Intensity ◽  
Dry Weight ◽  
High Light Intensity ◽  
Climatic Conditions ◽  
High Light ◽  
Controlled Environment ◽  
Low Light ◽  
Carbon Dioxide Uptake ◽  
Low Light Intensity ◽  
The Difference

Phytotoxicity of 2-(tert-butylamino)-4-(ethylamino)-6-(methylthio)-s-triazine (terbutryn) on winter wheat (Triticum aestivum Vill. ‘Host’) was investigated in a controlled environment. Highly significant differences in foliage dry weight were caused by different light intensities and rates of terbutryn. Injury symptoms appeared much earlier in plants under high light intensity. Carbon dioxide uptake by wheat plants was reduced by terbutryn at high light intensity. At low light intensity the reduction was less severe and developed later. Respiration (CO2 evolved in the dark) was reduced only by the highest rates. Terbutryn was significantly less toxic to wheat than 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine). The difference was more noticeable at low rates under high light intensity. At low light intensity no injury was observed with terbutryn.

STUDIES ON THE BIOLOGY OF WILD OATS. II. GROWTH.

1977 ◽  
Vol 57 (3) ◽  
pp. 811-817 ◽  
Author(s):  
M. P. SHARMA ◽  
W. H. VANDEN BORN ◽  
D. K. MCBEATH
Keyword(s):  
Soil Moisture ◽  
Light Intensity ◽  
Soil Ph ◽  
Dry Matter ◽  
Field Capacity ◽  
High Light Intensity ◽  
Dry Matter Accumulation ◽  
Initial Growth ◽  
Nitrogen And Phosphorus ◽  
Wild Oats

Dry matter accumulation by wild oats (Avena fatua L.) in a growth cabinet, after an initial lag period, took place rapidly until 8 wk after emergence. Plant height and the number of leaves per plant increased at a nearly linear rate until 6 wk after emergence. Tillering occurred mainly during the period 2–4 wk after emergence. Low light intensity and short photoperiod severely restricted growth, and delayed heading and maturity. Plants grew best at day–night temperatures of 20–12 C, though initial growth was faster at higher temperature (28–20 C). In a black loam soil, plants responded to added nitrogen and phosphorus only under high light intensity. Both soil moisture and soil pH greatly influenced the growth of wild oats. Greatest dry matter accumulation was attained when soil pH was 7.5 or 8.5 and soil moisture was maintained above 75% field capacity. Hull color of the seed had no effect on the growth of wild oat plants. Plants produced from large seeds had higher dry weights than plants produced from small seeds. Implications of these findings for the control of wild oats are discussed.

scholarly journals Comparison of the metabolic profiles of rice cultivars with different eating qualities during grain development and the post-harvesting process

2020 ◽  
Author(s):  
Yi-Bo Chen ◽  
zhidong wang ◽  
chongrong wang ◽  
Hong Li ◽  
Daoqiang Huang ◽  
...  
Keyword(s):  
Nutritional Quality ◽  
Eating Quality ◽  
Rice Cultivars ◽  
Grain Development ◽  
Targeted Metabolomics ◽  
Carbon Supply ◽  
Widely Targeted Metabolomics ◽  
Metabolic Variation ◽  
Harvesting Process ◽  
Post Harvesting

Abstract Background: Rice eating quality and nutritional quality is affected by both grain development and the post-harvesting process, but the dynamic metabolite changes among rice cultivars during these processes are unclear.Results: We successfully identified 623 metabolites in four indica cultivars with different eating qualities using a widely-targeted metabolomics approach, and found that the metabolic variation became increasingly smaller and differed according to the stage and cultivar during grain development and post-harvesting. Our results suggested that the levels of sugars, amino acids, lipids, and flavones demonstrated cultivar-specific changes during grain development, and sufficient carbon supply during grain development may contribute to the formation of excellent eating quality. We further found that most of the metabolites, especially the nutritional metabolites, decreased significantly or even lost, whereas only few increased during post-harvesting, further indicating that the post-harvesting process reduced the metabolic molecular differences between rice cultivars with different eating qualities, and had an even greater influence on metabolites than genetic factors.Conclusions: We found that a large number of metabolites changed significantly in the rice cultivars during grain development and the post-harvesting process, which facilitates further study of rice quality formation and has potential application in eating quality and nutritional quality improvement.

scholarly journals Large-scale vs. small-scale factors affecting flowering patterns in Senecio macrophyllus M.BIEB., a long-lived perennial

2012 ◽  
Vol 59 (1) ◽  
pp. 233-239 ◽  
Author(s):  
Bożenna Czarnecka
Keyword(s):  
Soil Moisture ◽  
Environmental Factors ◽  
Light Intensity ◽  
Large Scale ◽  
Climatic Factors ◽  
Small Scale ◽  
Herbaceous Plant ◽  
Factors Affecting ◽  
Reproductive Patterns ◽  
Scale Factors

The aim of the study was to establish which of environmental factors affect flowering patterns in a long-lived herbaceous plant <i>Senecio macrophyllus</i>. The study was conducted in the population of Biała Góra (White Mountain) near Tomaszów Lubelski in the years 1989-2004. The results allow to conclude that in the reproductive patterns of the analysed population small-scale environmental factors (soil moisture and trophism, light intensity) are more important than large-scale climatic factors (temperature, precipitation), which to a comparable extent affect the plants in the whole population area.

scholarly journals GREEN HOUSE AUTOMATION VIA GPRS

2015 ◽  
pp. 250-254
Author(s):  
RAMPRABU .J ◽  
KAMINI .D
Keyword(s):  
Soil Moisture ◽  
Light Intensity ◽  
Plant Growth ◽  
Climatic Condition ◽  
Crop Yields ◽  
Extreme Temperature ◽  
Climatic Conditions ◽  
Mobile Web ◽  
House Automation ◽  
Environment Condition

Appropriate climatic condition are necessary for plant growth ,improve crop yields, efficient use of water and to control the diseased plants. To protect the plants from the adverse climatic conditions such as wind, cold, precepitation, excessive radiation, extreme temperature, insects and diseases.The need for greenhouse automation arises. Our system uses different sensors such as temperature ,LDR,humidifier,soil moisture and camera.The sensed signal from the above sensors are send to ARM 7 controller and the parameters such as temperature,light intensity, humidity,soil moisture and pest are controlled .The pest is identified using camera, processed by Matlab. The sensed information and the environment condition is send to the mobile web server of the greenhouse owner via GPRS.

The ecology of immature phases of Trichostrongyle nematodes: I. The vertical distribution of infective larvae of Trichostrongylus retortaeformis in relation to their habitat

Parasitology ◽  
1948 ◽  
Vol 39 (1-2) ◽  
pp. 17-25 ◽  
Author(s):  
H. D. Crofton
Keyword(s):  
Light Intensity ◽  
Vertical Distribution ◽  
Climatic Factors ◽  
Climatic Conditions ◽  
King's College ◽  
Graduate Research ◽  
Third Stage ◽  
Rate Of Evaporation ◽  
June July ◽  
The Vertical Distribution

1. The number of third stage larvae of Trichostrongylus retortaeformis on different portions of herbage was studied. Three plant-types were used: Festuca sp., Clover, and Carex sp.2. On Festuca spp., 5·5 in. in height, 90% of the total number of larvae occurred on the lower 3 in. of the blades; 50% occurred on the basal 1·5 in. On the same species, 3 in. high, 90% were found on the lower inch. This showed that the distribution on the blades was not limited by the total distance the larvae were able to travel. Nor was it limited by the rate of movement, because the form of the distribution was not altered after 3 days.3. Larvae were found to be evenly distributed vertically over the stems and leaves of clover.4. On Carex vulgaris 10 in. high the larvae were limited to the lower 2 in.5. The distribution of larvae in the soil, ‘mat’ and herbage was recorded monthly throughout the year. During the warmer months of June, July and August the majority of larvae were found on the grass blades, and more larvae occurred in the soil than in the ‘mat’. During September, October, April and May more larvae were found in the ‘mat’ and fewer were found on the blades and in the soil. From November to March nearly all the larvae occurred in the ‘mat’. From December to January no larvae were found on the grass blades or in the soil.6. Climatic conditions in the herbage were studied.7. It was shown that the temperature below the top of grass blades may differ considerably from the air temperature. Differences of 10° F. were recorded between the tips and bases of grass blades. In general, there was a gradient of temperature established between the upper and lower parts of the grass.8. High humidities occurred in the lower parts of the grass, even when atmospheric humidity was low. The relative humidity at the tips was never higher than that at the base of the blades.9. The rate of evaporation decreased towards the base of the blades.10. The light intensity decreased towards the soil. Midway between the top of the grass and the soil the light intensity fell rapidly.11. The height, density and type of herbage modified the effect of the climatic factors.12. It was concluded that the vertical distribution of larvae could be explained without reference to geotropism and that most of the larvae occurred in that portion of the herbage in which there was least climatic change.The writer wishes to thank Prof. A. D. Hobson for advice and criticism and Mr W. Lyle Stewart, M.R.C.V.S., for encouragement and the provision of facilities, and Dr G. Lapage for helpful criticism and advice in the preparation of the MS. Thanks are also due to King's College, University of Durham, for a grant from the College Post-Graduate Research Fund.

Characteristics of Photosynthesis in Different Wheat Cultivars under High Light Intensity and High Temperature Stresses

2009 ◽  
Vol 34 (12) ◽  
pp. 2196-2201 ◽  
Author(s):  
Xue-Li QI ◽  
Lin HU ◽  
Hai-Bin DONG ◽  
Lei ZHANG ◽  
Gen-Song WANG ◽  
...  
Keyword(s):  
High Temperature ◽  
Light Intensity ◽  
High Light Intensity ◽  
High Light ◽  
Wheat Cultivars ◽  
Temperature Stresses

scholarly journals Radial Growth Response of European Larch Provenances to Interannual Climate Variation in Poland

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 334
Author(s):  
Norbert Szymański ◽  
Sławomir Wilczyński
Keyword(s):  
Radial Growth ◽  
Climatic Factors ◽  
Principal Component ◽  
Climatic Conditions ◽  
Growth Responses ◽  
European Larch ◽  
Temperature And Precipitation ◽  
Provenance Trials ◽  
High Precipitation ◽  
Climatic Elements

The present study identified the similarities and differences in the radial growth responses of 20 provenances of 51-year-old European larch (Larix decidua Mill.) trees from Poland to the climatic conditions at three provenance trials situated in the Polish lowlands (Siemianice), uplands (Bliżyn) and mountains (Krynica). A chronology of radial growth indices was developed for each of 60 European larch populations, which highlighted the interannual variations in the climate-mediated radial growth of their trees. With the aid of principal component, correlation and multiple regression analysis, supra-regional climatic elements were identified to which all the larch provenances reacted similarly at all three provenance trials. They increased the radial growth in years with a short, warm and precipitation-rich winter; a cool and humid summer and when high precipitation in late autumn of the previous year was noted. Moreover, other climatic elements were identified to which two groups of the larch provenances reacted differently at each provenance trial. In the lowland climate, the provenances reacted differently to temperature in November to December of the previous year and July and to precipitation in September. In the upland climate, the provenances differed in growth sensitivity to precipitation in October of the previous year and June–September. In the mountain climate, the provenances responded differently to temperature and precipitation in September of the previous year and to precipitation in February, June and September of the year of tree ring formation. The results imply that both climatic factors and origin (genotype), i.e., the genetic factor, mediate the climate–growth relationships of larch provenances.

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