Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Effect of Temperature Hardening on Growth, Carbohydrate and Protein Levels in Three Grain Crops

Effect of Temperature Hardening on Growth, Carbohydrate and Protein Levels in Three Grain Crops The effect of seedling pretreatment at different temperature levels and periods of exposure on growth, pigments, carbohydrates and proteins was studied in three grain crops; sorghum, wheat and barley at different stages of growth. Greater shoot‐dry weights were obtained in sorghum with exposure for 15 hrs at 40 °C in the flowering, in wheat for 2 hrs at 10 and 40 °C in the fruiting and in barley for 15 hrs at 0 °C in the flowering stage. Increased root‐dry weights were achieved by wheat with exposure for 4 and 15 hrs at all levels even at 0 °C in the flowering and for 15 hrs at 40 °C in the fruiting stage. Chla and Chlb were more responsive in sorghum to higher temperature pretreatments than either wheat or barley. In sorghum the temperature extremes (0 and 50 °C) had resulted in a substantial reduction of Chla, and Chlb in the fruiting stage. Lower and higher temperature‐pretreatments had resulted in total available carbohydrate reduction in shoot and root of sorghum and wheat at the early stage, but the reverse was true later in flowering. In contrast, lower and higher temperature pretreatments had increased shoot‐protein in sorghum and wheat in the vegetative and in sorghum in the flowering stage. Root‐protein was more responsive to low temperature‐pretreatments in sorghum and barley during the fruiting stage. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Agronomy and Crop Science Wiley

Effect of Temperature Hardening on Growth, Carbohydrate and Protein Levels in Three Grain Crops

Loading next page...
 
/lp/wiley/effect-of-temperature-hardening-on-growth-carbohydrate-and-protein-YDQ6939rny

References (18)

Publisher
Wiley
Copyright
Copyright © 1992 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0931-2250
eISSN
1439-037X
DOI
10.1111/j.1439-037X.1992.tb01007.x
Publisher site
See Article on Publisher Site

Abstract

The effect of seedling pretreatment at different temperature levels and periods of exposure on growth, pigments, carbohydrates and proteins was studied in three grain crops; sorghum, wheat and barley at different stages of growth. Greater shoot‐dry weights were obtained in sorghum with exposure for 15 hrs at 40 °C in the flowering, in wheat for 2 hrs at 10 and 40 °C in the fruiting and in barley for 15 hrs at 0 °C in the flowering stage. Increased root‐dry weights were achieved by wheat with exposure for 4 and 15 hrs at all levels even at 0 °C in the flowering and for 15 hrs at 40 °C in the fruiting stage. Chla and Chlb were more responsive in sorghum to higher temperature pretreatments than either wheat or barley. In sorghum the temperature extremes (0 and 50 °C) had resulted in a substantial reduction of Chla, and Chlb in the fruiting stage. Lower and higher temperature‐pretreatments had resulted in total available carbohydrate reduction in shoot and root of sorghum and wheat at the early stage, but the reverse was true later in flowering. In contrast, lower and higher temperature pretreatments had increased shoot‐protein in sorghum and wheat in the vegetative and in sorghum in the flowering stage. Root‐protein was more responsive to low temperature‐pretreatments in sorghum and barley during the fruiting stage.

Journal

Journal of Agronomy and Crop ScienceWiley

Published: May 1, 1992

There are no references for this article.