Effects of temperature and water potential on the germination of muskmelon cultivars

1988 ◽  
Vol 112 (1) ◽  
pp. 187-194 ◽  
Author(s):  
J. R. DUNLAP
Keyword(s):  
Water Potential ◽  
Effects Of Temperature

Weather, Physiology and Seasonality of Tea (Camellia sinensis) Yields in Malawi

1979 ◽  
Vol 15 (4) ◽  
pp. 321-330 ◽  
Author(s):  
G. R. Squire
Keyword(s):  
Water Potential ◽  
Air Temperature ◽  
Shoot Growth ◽  
Narrow Range ◽  
Field Measurements ◽  
Base Temperature ◽  
Saturation Deficit ◽  
Mean Temperature ◽  
Effects Of Temperature ◽  
Independent Effects

SUMMARYField measurements with a pressure chamber showed that the water potential of tea shoots was more closely related to the atmospheric saturation deficit than to the amount of water in the soil. Records for shoot growth and weather then revealed that, within a narrow range of mean temperature, the weekly rate of shoot extension was inversely related to mean saturation deficit measured at 1400 h. During periods when saturation deficit did not rise above 20 mbar, the rate of shoot extension varied linearly with mean temperature above a base temperature of 12.5–13.0°C. These correlations suggested that seasonality of shoot growth in tea can be explained largely by the independent effects of temperature and humidity. The effect of mean air temperature on the rate of shoot extension was confirmed in a glasshouse built over an established crop.

scholarly journals Comparison of the effects of temperature and water potential on seed germination of Fabaceae species from desert and subalpine grassland

2015 ◽  
Vol 102 (5) ◽  
pp. 649-660 ◽  
Author(s):  
Xiao Wen Hu ◽  
Yan Fan ◽  
Carol C. Baskin ◽  
Jerry M. Baskin ◽  
Yan Rong Wang
Keyword(s):  
Seed Germination ◽  
Water Potential ◽  
Effects Of Temperature

Effects of Temperature and Water Potential on Germination of Horehound (Marrubium vulgare) Seeds from two Australian Localities

Weed Science ◽  
1996 ◽  
Vol 44 (1) ◽  
pp. 91-99 ◽  
Author(s):  
Attila Lippai ◽  
Paula A. Smith ◽  
Terence V. Price ◽  
John Weiss ◽  
Christopher J. Lloyd
Keyword(s):  
Water Potential ◽  
Temperature Difference ◽  
Generalized Additive Models ◽  
Additive Models ◽  
Regular Pattern ◽  
Water Potentials ◽  
Marrubium Vulgare ◽  
Effects Of Temperature

Horehound seed from Wyperfeld (Wyp90 and Wyp93) had optimum germination (98%) at constant 25 C and alternating 30/15 C at 0 MPa, while seed from Swift's Creek (SC93) had optimum germination at constant 25 to 27 C (84%) or alternating 25/15 C (95%). The Generalized Additive Models showed the effects of the three covariates (temperature, temperature difference and water potential) followed a smooth and regular pattern. Germination of SC93, Wyp90 and Wyp93 seed increased (P < 0.001) by 9.1, 6.1, and 11.6% for each degree increase in temperature difference but decreased (P < 0.001) with decreases in water potential by a factor of 4.1, 4.8, and 7.1 respectively, and ceased at −1.5 MPa. At constant temperatures the odds of germination were 27, 19, and 18% smaller for water potentials of 0, −0.25 and −0.5 MPa than when alternating temperatures varied by 15 C.

scholarly journals Effects of temperature and water potential on seed germination of 13 Poa L. species in the Qinghai-Tibetan Plateau

2020 ◽  
pp. e01442
Author(s):  
Linna Wei ◽  
Chunping Zhang ◽  
Quanmin Dong ◽  
Zengzeng Yang ◽  
Hui Chu ◽  
...  
Keyword(s):  
Seed Germination ◽  
Tibetan Plateau ◽  
Water Potential ◽  
Effects Of Temperature
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