scholarly journals Influencing malt quality by exogenous ethylene application performed in the course of post-harvest ripening of barley grain.

2011 ◽  
Vol 57 (7-8) ◽  
pp. 246-252
Author(s):  
Ivo HARTMAN ◽  
Helena FIŠEROVÁ ◽  
Alena HELÁNOVÁ ◽  
Josef PROKEŠ ◽  
Jiří HARTMANN
Keyword(s):  
Barley Grain ◽  
Malt Quality ◽  
Post Harvest ◽  
Exogenous Ethylene

scholarly journals Ethylene and 1-methylcyclopropene action over senescence of nasturtium flowers

2015 ◽  
Vol 33 (4) ◽  
pp. 453-458 ◽  
Author(s):  
Tania P Silva ◽  
Fernando L Finger
Keyword(s):  
Floral Development ◽  
Development Stage ◽  
Flower Senescence ◽  
Premature Senescence ◽  
Flower Opening ◽  
Development Stages ◽  
Post Harvest ◽  
The Third ◽  
Exogenous Ethylene ◽  
Floral Bud

ABSTRACT: This work describes ethylene and 1-methylcyclopropene (1-MCP) action on post-harvest shelf life of four development stages of nasturtium flowers. To reach this goal, we carried out three experiments. In the first and second experiments, we studied five ethylene (0; 0.1; 1; 10; 100 and 1000 μL/L) and three 1-MCP concentrations (0.25; 0.5 and 0.75 μL/L), respectively. In the third experiment, 1-MCP was followed by combined with ethylene (only 1-MCP; only ethylene; and 24 hours of exposure to 0.75 μL/L 1-MCP followed by 24 hours of exposure to 100 μL/L ethylene). All experiments had two control treatments, one keeping non-exposed flowers inside and another outside exposure chambers. Experiments were set in factorial design, in complete blocks at random, with four 10-flower replications each. Flower senescence was determined by a pre-established visual scale and by observing floral bud development. Ethylene dose above 10 μL/L induced flower wilting and premature senescence from the second floral development stage. Furthermore, higher concentrations of exogenous ethylene promoted irregular flower opening and/or morphological abnormalities in opened flowers. 1-MCP effectively extended post-harvest longevity of nasturtium flowers, independent of the concentration and even in the presence of exogenous ethylene.

scholarly journals Effect of GA3 on ribonuclease activity in the embryos and endosperm of spring barley grain in the post-harvest dormancy period

2015 ◽  
Vol 40 (3) ◽  
pp. 423-430 ◽  
Author(s):  
A. Rejowski
Keyword(s):  
Protein Content ◽  
Spring Barley ◽  
Dry Weight ◽  
Barley Grain ◽  
Ribonuclease Activity ◽  
Internal Factor ◽  
Physiological Maturity ◽  
Post Harvest ◽  
Dormancy Period

The effect of GA<sub>3</sub> on ribonuclease activity in the embryos and endosperm of barley seeds was investigated during dormancy and after its end. Incubation of dormancy grain with GA<sub>3</sub> stimulated its germination, increased the dry weight of the embryos and their protein content. Ribonuclease activity in seeds treated with GA<sub>3</sub> was considerably enhanced. The increase was more rapid and intensive in the embryos than in the endosperm. The action of GA<sub>3</sub> was most effective, particularly as regards the endosperm, on grain which had already passed through the stage of dormancy and had reached physiological maturity. This is evidence that the internal factor regulating the process of dormancy exerts a stronger influence on the activity of ribonuclease than does exogenic giberrellic acid.

scholarly journals Malt quality during the post-harvest maturation of barley.

2010 ◽  
Vol 56 (2) ◽  
pp. 93-99 ◽  
Author(s):  
Helena FIŠEROVÁ ◽  
Josef PROKEŠ ◽  
Alena HELÁNOVÁ ◽  
Jiří HARTMANN
Keyword(s):  
Malt Quality ◽  
Post Harvest

Relationships Between Fatty Acid Contents of Barley Grain, Malt, and Wort with Malt Quality Measurements

2015 ◽  
Vol 92 (1) ◽  
pp. 93-97 ◽  
Author(s):  
Daniel Cozzolino ◽  
Sophie Roumeliotis ◽  
Jason Eglinton
Keyword(s):  
Fatty Acid ◽  
Barley Grain ◽  
Malt Quality ◽  
Quality Measurements

scholarly journals The effect of technological characters of barley grain on malt quality.

2013 ◽  
Vol 59 (10-11) ◽  
pp. 284-287
Author(s):  
Ivo HARTMAN
Keyword(s):  
Barley Grain ◽  
Malt Quality

Endogenous and exogenous ethylene induces needle abscission and cellulase activity in post-harvest balsam fir (Abies balsamea L.)

Trees ◽  
2011 ◽  
Vol 25 (5) ◽  
pp. 947-952 ◽  
Author(s):  
Mason T. MacDonald ◽  
Rajasekaran R. Lada ◽  
Martine Dorais ◽  
Steeve Pepin
Keyword(s):  
Abies Balsamea ◽  
Cellulase Activity ◽  
Balsam Fir ◽  
Post Harvest ◽  
Exogenous Ethylene

scholarly journals Post-harvest quality of bananas Prata-anã and Nanica after application of exogenous ethylene in maturation

2018 ◽  
Vol 40 (5) ◽  
Author(s):  
Regina Célia Gomes Garcia Nobre ◽  
Eliseu Marlônio Pereira de Lucena ◽  
Josivanda Palmeira Gomes ◽  
Dyalla Ribeiro de Araújo ◽  
Dannaya Julliethy Gomes Quirino
Keyword(s):  
Room Temperature ◽  
Storage Time ◽  
Storage Temperature ◽  
Storage Conditions ◽  
Soluble Solids ◽  
Post Harvest ◽  
Peel Color ◽  
Exogenous Ethylene ◽  
And Storage

Abstract The objective of this study was to evaluate the post-harvest quality of bananas (Musa x paradisiaca L.) Prata-anã and Nanica after application of exogenous ethylene (C2H4) during maturation. Bananas of Prata-anã cultivar were harvested 18 weeks after the anthesis (WAA) and those of Nanica cultivar with 13 WAA. After harvest, the fruits were submitted to 0, 1, 2, 3, 4 and 5 applications of 15 mL of ethyl-5/m3 in refrigeration chambers at 15ºC and later stored at room temperature (24 to 28ºC) and refrigerated at 15°C for 10 days. Peel color, fresh weight loss, firmness, total soluble solids, total bark chlorophyll, total bark and pulp carotenoids were evaluated at 0, 3, 4, 7 and 10 days after harvest (DAH). The Assistat program was used in statistical analysis. Among the storage conditions, fruits kept under refrigeration had a longer shelf life. The Prata-anã cultivar was superior to Nanica, presenting maturation indexes ideal for transport and commercialization, evaluated for the interactions of storage temperature, ethylene (C2H4) applications and storage time. It was concluded that the banana Prata-anã requires 3 and Nanica 4 applications of ethyl, for the harvest with 18 and 13 weeks, respectively, in order to promote a fast and uniform maturation.

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