Imbibition Temperature Sensitivity of Lima Bean Seeds Controlled by Initial Seed Moisture
نویسندگان
چکیده
منابع مشابه
Physiological Predetermination: Imbibition, Respiration, and Growth of Lima Bean Seeds.
Temperatures 15 degrees C or lower during the first hour of imbibition immediately inhibited respiration in lima beans, with proportional inhibition of subsequent growth of seedlings. Correlations between initial respiration rates and growth rates of seedlings were found in diferent lots of seeds.
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The seed moisture level marking the onset of imbibitional injury (breakpoint) was determined for two cultivars of Phaseolus vulgaris L. cvs ;Tendercrop' (TC) and ;Kinghorn Wax' (KW). At 20 degrees C the breakpoints were 0.15 gram H(2)O/gram dry weight (gram per gram) for TC and 0.11 gram per gram for KW. When seeds were imbibed at 5 degrees C, the breakpoints were 0.19 gram per gram (TC) and 0....
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Water uptake of seeds of Phaseolus vulgaris L. cv Limburg was monitored in a controlled atmosphere every day at solar noon for a period of 2 years. The imbibition rate, determined as the mean of five replicas, was related to the lunar cycle, maximal water uptake occurring between the new phases of the cycle. The monthly mean value of imbibition rate, calculated from the daily measurements, disp...
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Exposure of imbibed seeds to low temperature (typically 4 degrees C) is widely used to break seed dormancy and to improve the frequency of germination. However, the mechanism by which temperature accelerates germination is largely unknown. Using DNA microarray and gas chromatography-mass spectrometry analyses, we found that a subset of gibberellin (GA) biosynthesis genes were upregulated in res...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1969
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.44.6.907