Carbon Dioxide and Temperature Effects on Growth and Development of Rice Cultivars

2015 ◽  
pp. 141-151
Author(s):  
Keith T. Ingram ◽  
Pacita A. Manalo ◽  
Rico R. Pamplona
Keyword(s):  
Carbon Dioxide ◽  
Temperature Effects ◽  
Growth And Development ◽  
Rice Cultivars

Carbon Dioxide and Temperature Effects on Evapotranspiration and Water Use Efficiency of Soybean

2003 ◽  
Vol 95 (4) ◽  
pp. 1071-1081 ◽  
Author(s):  
L. H. Allen ◽  
Deyun Pan ◽  
K. J. Boote ◽  
N. B. Pickering ◽  
J. W. Jones
Keyword(s):  
Carbon Dioxide ◽  
Water Use Efficiency ◽  
Water Use ◽  
Temperature Effects ◽  
Use Efficiency

scholarly journals Modulation of ascorbate-glutathione cycle by selenate and sulphate treatments in the seedlings of two rice (Oryza sativa L.) cultivars

2020 ◽  
Vol 7 (3) ◽  
Author(s):  
Debarati Das ◽  
Paulin Seal ◽  
Sabarni Biswas ◽  
Asok K Biswas
Keyword(s):  
Oryza Sativa ◽  
Growth And Development ◽  
Elevated Level ◽  
Oryza Sativa L ◽  
Ascorbate Oxidase ◽  
Rice Cultivars ◽  
Rice Seedlings ◽  
Thiol Metabolism ◽  
Regulatory Enzymes ◽  
Glutathione Cycle

The trace element Selenium (Se) has a dual role in the growth and metabolism of plants. Low concentration of selenium (2 ?M selenate) promotes growth and counteracts the detrimental effects of abiotic stress as opposed to higher levels (?10 ?M) where it acts as a pro-oxidant. We focused on both individual and interactive influence of selenate and sulphate on thiol metabolism in seedlings of rice cultivars, satabdi and khitish. Inhibition of ascorbate contents by about 17% on an average, in the test seedlings treated with Se correlated with increased activities of ascorbate peroxidase and ascorbate oxidase in the cultivars. The glutathione levels also increased significantly, on an average by about 102% in roots and 74% in shoots of cv. satabdi compared to a rise, by about 49% in roots and 56% in shoots of cv. khitish. The elevated level of glutathione coincided with the stimulatory influence of Se on its regulatory enzymes. Concomitantly the levels of ?-tocopherol and phytochelatins were also induced in both the test cultivars. Increase in ?-tocopherol activity reached a maximum by about 47% in roots and 80% in shoots of cv. satabdi whereas it increased by about 36% in roots and about 64% in shoots of cv. khitish. Substantive increase in the levels of PC4 followed by PC2 and PC3 was also noted. The effects were found to be less conspicuous in shoots than in roots. Rice seedlings exposed to combined Se and 10mM sulphate treatments showed improved growth and development as a result of better thiol metabolism due to amelioration of the adverse effects caused by selenium alone on all the parameters tested.

Interactive Effects of Carbon Dioxide and Water Stress on Potato Canopy Growth and Development

2008 ◽  
Vol 100 (3) ◽  
pp. 711-719 ◽  
Author(s):  
David H. Fleisher ◽  
Dennis J. Timlin ◽  
Vangimalla R. Reddy
Keyword(s):  
Carbon Dioxide ◽  
Water Stress ◽  
Growth And Development ◽  
Interactive Effects

The effects of carbon dioxide on the growth and development of amphibious plants

1969 ◽  
Vol 47 (11) ◽  
pp. 1803-1807 ◽  
Author(s):  
J. Michael Bristow
Keyword(s):  
Carbon Dioxide ◽  
Nutrient Medium ◽  
Growth And Development ◽  
Normal Growth ◽  
Growing Season ◽  
Solid Substrate ◽  
Submerged Plants ◽  
Land Form ◽  
Amphibious Plants ◽  
High Concentrations

When grown in a stream of 5% CO2 in air on a solid substrate, the heterophyllous amphibious species Ranunculus flabellaris and Myriophyllum brasiliense developed many characteristics of the water form. Plants of the same clones grown in 0.03% CO2 exhibited the land form. Submerged plants grew rapidly when 5% CO2 in air was bubbled through the nutrient medium, and exhibited the typical water form, while plants kept in 0.03% CO2 grew poorly, and the small leaves which developed were intermediate in morphology between the land and water forms. These results are similar to those obtained previously with Marsilea. None of these species were able to utilize bicarbonate. The stream from which the Ranunculus used in the experiments was collected contained high concentrations of dissolved free CO2 during part of the growing season. Thus concentrations of free CO2 higher than those in air may be essential for the normal growth and development of submerged amphibious plants.

PHOTOPERIOD AND TEMPERATURE EFFECTS ON CORN

1974 ◽  
Vol 54 (1) ◽  
pp. 71-78 ◽  
Author(s):  
R. B. HUNTER ◽  
L. A. HUNT ◽  
L. W. KANNENBERG
Keyword(s):  
Zea Mays ◽  
High Temperature ◽  
Vegetative Growth ◽  
Temperature Effects ◽  
Growth And Development ◽  
Zea Mays L ◽  
Dry Weight ◽  
Stem Length

The open-pollinated corn (Zea mays L.) cult Gaspé Flint and three hybrids, Guelph GX122, Harrow 691, and Pioneer X306, were selected to examine the effects of photoperiod and temperature on the number of days to tassel initiation. The range of maturity of this material varied from extremely early to subtropical. The experiments, conducted in growth cabinets, examined photoperiods of from 10 to 20 h in 21/2-h increments. Constant day–night temperatures examined were 20, 25, and 30 C. Photoperiod and temperature affected number of days to tassel initiation. The response was not consistent for each genotype. As daylength increased from 10 to 20 h all but the earliest genotype, Gaspé Flint, took longer to reach tassel initiation. The latest hybrid, Pioneer X306, was affected relatively more by photoperiod. The delay in tassel initiation with longer photoperiods was apparent at all temperatures; however, the magnitude of the response was less at the high temperature. With longer photoperiods, there was an increase in the amount of vegetative growth and development prior to tassel initiation. This was apparent from the greater number of emerged leaves, the longer stem length, and the greater plant dry weight at tassel initiation.

scholarly journals Novel Non-Thermal Processing Technologies: Impact on Food Phenolic Compounds during Processing

2021 ◽  
Author(s):  
Josephine Ampofo ◽  
Michael Ngadi
Keyword(s):  
Carbon Dioxide ◽  
Phenolic Compounds ◽  
Growth And Development ◽  
Food System ◽  
Processing Technologies ◽  
Novel Technologies ◽  
High Hydrostatic Pressure Processing ◽  
Thermally Processed ◽  
Anti Cancer ◽  
Field Radiation

In recent times, food consumption has advanced beyond simply meeting growth and development needs to include the supply of ingredients that can protect against diseases. Among such non-nutritive ingredients are phenolic compounds. These are benzene-ringed secondary metabolites produced in plants upon exposure to environmental stress. Previous studies have linked phenolic compounds to bioactive benefits (e.g., antioxidative, anti-inflammatory, and anti-cancer) with these bioactivities dependent on their biochemical structure and concentrations of individual phenolic compounds present in the food system. However, majority of plant foods are thermally processed into ready-to-eat forms, with these processing methods potentially altering the structure and subsequent bioactivities of endogenous phenolic compounds. Thus, the aim of this chapter is to highlight on emerging non-thermal novel technologies (such as pulsed electric field, radiation, ultrasonication, high hydrostatic pressure processing and high pressure carbon dioxide processing) that can be exploited by the food industry to preserve/enhance bioactivities of phenolic compounds during processing.

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