A General Overview on Seed Dormancy and Methods of Breaking It

Mousavi, Sayed Roholla; Rezaei, Maryam; Mousavi, Aboutaleb
September 2011
Advances in Environmental Biology;Sep2011, Vol. 5 Issue 10, p3333
Academic Journal
Seed is basis, and the first input used in transfer of genetic traits in crops production, also seed makes up bulk of the diet of humans and animals. Seed dormancy is a physiological phenomenon in plants, which is caused by external or internal factors, and prevent of seeds germination, even in optimal conditions. Seed dormancy may be caused due to hard seed coat, immature embryo, rudimentary embryo and inhibitors materials. Seed dormancy is broken with soil melting and freezing, microorganism's activity, forest fires, soil activity, and being eaten by animals, in normal conditions. Scarification is one of the techniques for seed dormancy broken that can be done either mechanically or chemically. Also leaching is one of the ways for eliminate seed dormancy, through destroyed inhibiting substances in the seed coat.


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