Nitrate Reductase Independent Stimulation of Seed Germination in Sisymbrium officinale L. (Hedge Mustard) by Light and Nitrate

1989 ◽  
Vol 63 (1) ◽  
pp. 131-137 ◽  
Author(s):  
HENK W. M. HILHORST ◽  
CEES M. KARSSEN
2017 ◽  
Vol 12 (1) ◽  
pp. 62-75 ◽  
Author(s):  
Renata Bączek-Kwinta

AbstractSwailing as a part of agricultural practice is an illegal habit in many European countries. The indirect effect of swailing is the emission of volatiles (SGV), hence the aim of the study was to identify their impact to seeds of different species occurring or grown Europe. It was carried out on seeds of 29 species of 10 botanical families within the angiosperms. The response to SGV was more or less differentiated within a family, and even within the species, e.g. in the case of tomato. The stimulation of germination and/or increased seedling vigour was established in celery, green- and red-leafed basil, white and red cabbage, white clover and wild thyme. The same effect was noticed for the seeds of stratified broadleaf plantain and the positively photoblastic seeds of German chamomile germinated in darkness. The inhibition of seed germination and/ or reduced seedling vigour was demonstrated in case of caraway, dill and forget-me-not. Similar results were obtained in the experiments carried outin vitroand in the soil, hence it can be assumed that the indirect impact of SGV on plant habitat composition is likely. The interaction of SGV compounds with seed testa and seed phytohormones is discussed.


2012 ◽  
Vol 03 (11) ◽  
pp. 1619-1624 ◽  
Author(s):  
Rie Tomioka ◽  
Chisato Takenaka ◽  
Masayoshi Maeshima ◽  
Takafumi Tezuka ◽  
Mikiko Kojima ◽  
...  

1994 ◽  
Vol 15 (1) ◽  
pp. 93-100 ◽  
Author(s):  
N. A. C. Brown ◽  
H. Jamieson ◽  
P. A. Botha

Weed Science ◽  
1980 ◽  
Vol 28 (5) ◽  
pp. 510-514 ◽  
Author(s):  
G. H. Egley

The effects of ethylene upon germination of common cocklebur (Xanthium pensylvanicumWallr.) and redroot pigweed (Amaranthus retroflexusL.) seeds were studied. In laboratory tests with seeds in sealed flasks in the dark, 10 μl/L ethylene increased germination of redroot pigweed seeds from 7% to 52% at 30 C, and increased germination of large and small common cocklebur seeds from 30% and 0% to 100% and 90% respectively, at 25 C. At least 12 h of exposure to ethylene was necessary for appreciable stimulation of germination. In growth chamber studies with known numbers of seeds in pots of soil, ethylene at 11 kg/ha was injected into the soil, and the pots were enclosed in plastic bags for 24 h. One such injection at 2 weeks after planting, and successive injections at 2, 3, and 4 weeks, significantly increased redroot pigweed seedling emergence, and significantly decreased the numbers of dormant, viable seeds remaining in the soil. When pots were not enclosed, injections did not significantly effect redroot pigweed seeds, but significantly increased common cocklebur seedling emergence and decreased the number of viable common cocklebur seeds remaining in the soil.


1979 ◽  
Vol 93 (5) ◽  
pp. 395-402 ◽  
Author(s):  
S. Janaki Vijayaraghavan ◽  
Sudhir K. Sopory ◽  
Sipra Guha-Mukherjee

1985 ◽  
Vol 65 (4) ◽  
pp. 451-454 ◽  
Author(s):  
Regine Chadoeuf-Hannel ◽  
Ray B. Taylorson

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