Significance of Increasing Ambient CO2 for Plant Growth and Survival, and Interactions with Air Pollution

1993 ◽  
pp. 51-75 ◽  
Author(s):  
H. Z. Enoch ◽  
S. J. Honour
Keyword(s):  
Air Pollution ◽  
Plant Growth ◽  
Growth And Survival ◽  
Ambient Co2

scholarly journals The impact of multifactorial stress combination on plant growth and survival

2021 ◽  
Author(s):  
Sara I. Zandalinas ◽  
Soham Sengupta ◽  
Felix B. Fritschi ◽  
Rajeev K. Azad ◽  
Rachel Nechushtai ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth And Survival ◽  
The Impact

scholarly journals Effects of topsoil treatments on afforestation in a dry Mediterranean climate (southern Spain)

Solid Earth ◽  
2016 ◽  
Vol 7 (5) ◽  
pp. 1479-1489 ◽  
Author(s):  
Paloma Hueso-González ◽  
Juan Francisco Martínez-Murillo ◽  
Jose Damian Ruiz-Sinoga
Keyword(s):  
Plant Growth ◽  
Pinus Halepensis ◽  
Low Cost ◽  
Treatment Plant ◽  
Organic Amendments ◽  
Climatic Conditions ◽  
Growth And Survival ◽  
Sheep Manure ◽  
High Level ◽  
Survival Of Seedlings

Abstract. Afforestation programs in semiarid areas are associated with a high level of sapling mortality. Therefore, the development of alternative low-cost and low-environmental-impact afforestation methods that ensure the survival of seedlings is crucial for improving the efficiency of Mediterranean forest management. This study assessed the effects of five types of soil amendments on the afforestation success (e.g., plant growth and survival) of a Mediterranean semiarid area. The amendments tested were (i) straw mulch; (ii) mulch containing chipped branches of Aleppo pine (Pinus halepensis L.); (iii) sheep manure compost; (iv) sewage sludge from a wastewater treatment plant; and (v) TerraCottem hydroabsorbent polymer. We hypothesized that in the context of dry Mediterranean climatic conditions, the use of organic amendments would enhance plant establishment and ensure successful afforestation. The results showed that afforestation success varied among the various soil amendment treatments in the experimental plots. The amendments had no effect on soil organic carbon, pH, or salinity, but the results indicated that the addition of mulch or hydroabsorbent polymer can reduce transplant stress by increasing the soil water available for plant growth throughout the hydrological year, and potentially improve the success of afforestation by reducing plant mortality.

scholarly journals Longevity of Radiofrequency Identification Device Microchips in Citrus Trees

HortScience ◽  
2010 ◽  
Vol 45 (3) ◽  
pp. 451-452 ◽  
Author(s):  
Kim D. Bowman
Keyword(s):  
Plant Growth ◽  
Woody Plant ◽  
Field Research ◽  
Rfid Technology ◽  
Growth And Survival ◽  
Radiofrequency Identification ◽  
Term Identification ◽  
Over Time ◽  
Citrus Trees

Long-term identification of individual plants in the field is an important part of many types of research. In a previous report, we described methods for using implanted radiofrequency identification device (RFID) microchips to tag citrus trees for field research. This report provides an update on the RFID technology for use in plants, the effect of implanted chips on long-term plant growth, and survival of the microchips over time. The microchips were found to have no significant effect on plant health and growth, and most microchips continued to work well through the first 6 years after implantation. Implanted RFID microchips appear useful for long-term tagging of citrus and other woody plant species.

Ten-year growth and survival of Douglas-fir seedlings treated with plant growth regulating substances at transplant

2000 ◽  
Vol 30 (11) ◽  
pp. 1778-1787 ◽  
Author(s):  
C F Scagel ◽  
R G Linderman ◽  
R K Scagel
Keyword(s):  
Plant Growth ◽  
Root Growth ◽  
Douglas Fir ◽  
Growth Responses ◽  
Indole Butyric Acid ◽  
Growth And Survival ◽  
Growing Seasons ◽  
Tree Survival ◽  
Stock Types ◽  
The Cost

Commercially available plant growth regulators (PGRs) or moisture retention gels, applied to the roots of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) before planting, can modify indole-3-acetic acid (IAA) levels in roots, root growth responses, and tree survival. We treated two different 1+0 stock types (PSB313B and PSB323) of Douglas-fir with indole-butyric acid (IBA), ethephon (Ethrel®), alginate, or a combination of IBA and alginate. New root growth and IAA levels in roots were measured 2 weeks after planting, and aboveground growth and tree survival were monitored over 10 growing seasons after planting. Treatment with IBA or the combination of IBA and alginate increased IAA conjugate and free IAA levels in roots, root growth, and tree survival. Alginate treatment alone increased new root growth and tree survival, but did not increase free IAA levels in roots. Ethrel® treatment increased free IAA levels and root growth, but had no effect on IAA conjugates or tree survival. A cost analysis suggests that use of certain PGRs or alginate decreases the cost required to attain target stocking and increased tree size. Our results suggest that application of PGRs or other root-promoting materials to the roots of Douglas-fir before planting has the potential to be a cost-beneficial method for increasing root growth and tree survival.

Effects of Mycorrhizal Fungi, Biostimulants and Water Absorbing Polymers on the Growth and Survival of Four Landscape Plant Species

2005 ◽  
Vol 23 (2) ◽  
pp. 108-111 ◽  
Author(s):  
Tim Abbey ◽  
Tom Rathier
Keyword(s):  
Plant Growth ◽  
Plant Species ◽  
Mycorrhizal Fungi ◽  
Thuja Occidentalis ◽  
Growth And Survival ◽  
Transplant Survival ◽  
Pyrus Calleryana ◽  
Landscape Plant ◽  
Backfill Soil ◽  
Callery Pear

Abstract The addition of commercial mycorrhizal, transplant gel and/or biostimulant products to the root balls or backfill soil of Japanese holly, (Ilex crenata Thunb. ‘Green Luster’); arborvitae, (Thuja occidentalis L. ‘Emerald Green’); Japanese spirea, (Spiraea japonica L.f. ‘Shibori’); Bradford Callery pear, (Pyrus calleryana Decne. ‘Cleveland Select’ and ‘Redspire’) at the time of planting did not lead to significant improvement of plant growth or transplant survival compared to untreated plants receiving routine mulching with pine bark mulch alone.

Growth and Survival of Escherichia coli O157:H7 on Fresh-Cut Apples in Modified Atmospheres at Abusive Temperatures

2002 ◽  
Vol 65 (10) ◽  
pp. 1641-1645 ◽  
Author(s):  
GURBUZ G. GUNES ◽  
JOSEPH H. HOTCHKISS
Keyword(s):  
Safety Issue ◽  
Visual Quality ◽  
Growth And Survival ◽  
High Co2 ◽  
E Coli ◽  
Modified Atmospheres ◽  
Apple Slices ◽  
Fresh Cut ◽  
Ambient Co2

The effects of reduced-O2 and elevated-CO2 modified atmospheres (MAs) and abusive temperatures on the growth and survival of E. coli O157:H7, yeast, and molds and on changes in the visual quality of fresh-cut apples were evaluated. High-CO2 and low-O2 (≥15% and <1%, respectively) atmospheres inhibited the growth of the pathogen on apple slices at 15 and 20°C. However, the population of the pathogen increased by 1 log cycle after 2 weeks of storage in air. The high-CO2 MA resulted in the inhibition of yeast and mold growth, less browning, and better visual quality than did air and ambient-CO2 atmospheres. The results of this study confirm that E. coli O157:H7 can grow on apple slices in air. These results also show that these organisms survive but are inhibited in MAs with high CO2 levels at abusive temperatures. An MA can increase the shelf life of fresh-cut apples by improving retention of visual quality and inhibiting yeast and molds. Thus, contamination of minimally processed apples with E. coli O157:H7 can be a safety issue for both air- and MA-packaged cut apples.

scholarly journals Rice immune sensor XA21 differentially enhances plant growth and survival under distinct levels of drought

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Shamsunnaher ◽  
Xiuhua Chen ◽  
Xiaoxuan Zhang ◽  
Xiao-Xia Wu ◽  
Xiaoen Huang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Stress Tolerance ◽  
Mercuric Chloride ◽  
Crop Production ◽  
Complex Stress ◽  
Severe Drought ◽  
Rice Seedlings ◽  
Growth And Survival ◽  
Stress Protection ◽  
Moderate Drought

Abstract Drought is a complex stress that limits plant growth and crop production worldwide. The mechanisms by which plants coordinately respond to distinct levels of water deficits (e.g., mild, moderate or severe drought) remain elusive. Here we demonstrate that the rice immune sensor XA21 promotes survival of rice seedlings during dehydration stress. XA21 expression increases deposition of lignin and cellulose in the xylem vessels and their surrounding cells. Inhibition of aquaporin water channels by mercuric chloride eliminates XA21-mediated dehydration survival, suggesting that XA21 enables plant survival during drought, probably by protecting xylem functionality. In contrast to prevailing observations of stress tolerance genes, XA21 is also capable of enhancing rice growth during moderate drought. Thus, XA21 acts as a mediator for stress protection and plant growth under water-limiting conditions.

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