Effect of Chilling, Temperatures and Light Treatments on Seed Germination of Some Weed Species

Subject Areas : Semi Annual Journal of Weed Ecology

marziyeh mazhari ¹ , Mahmoud Reza Tadayon ² , Ali Tadayon ³

1 - کارشناس ارشد اگرواکولوژی، دانشکده کشاورزی دانشگاه شهرکرد
2 - دانشیار گروه زراعت دانشکده کشاورزی دانشگاه شهرکرد
3 - دانشیار گروه زراعت دانشکده کشاورزی دانشگاه شهرکرد

Received: 2014-02-22 Accepted : 2017-01-31 Published : 2015-08-23

Keywords:

Abstract :

In order to evaluate the effect of chillingstratification, rotational temperature and rotational light periods on breaking dormancy and seed germination of Aegilops cylindrica, Agropyron repens,Bromus dantnoniae,Convolvulus arvensis, Setaria viridis, Centaurea cyanus and Cynodon dactylonan experiment was carried out in factorial arrangment and RCBD design at Shahrekord University. Treatments includedchillingstratification of -5, 0 and 5 °C for one, two and three weeks of rotational temperature (5-15 and 10-20 °C), in full light, dark and rotational light periods (8/16 h). The results showed chilling stratification was efffective breaking the seed dormancy of Aegilops cylindrical, Agropyron repens,Bromus dantoniae,Convolvula arvensis, Setaria viridis and rotational temperature and light broke the seed dormancy on Centurea cyanus, Cynodon dactylon and Convolvula arvensis

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