Pak. J. Bot., 46(2): 441-446, 2014. |
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Updated: 05-04-14 | ||||
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EFFECT OF COLD AND SCARIFICATION ON SEEDS GERMINATION OF PISTACIA ATLANTICA L. FOR RAPID MULTIPLICATION
CHEBOUTI-MEZIOU, N.1*, A. MERABET1, Y. CHEBOUTI2, F.Z. BISSAAD1, N. BEHIDJ-BENYOUNES1 AND S. DOUMANDJI3
Abstract:
This
study was carried out to determine the effects of mechanical
scarification and cold treatment of seeds at + 4oC before
sowing seed of Pistacia atlantica. In these
cases, the durations at cold temperature, which have been taken into
account, are successively 60, 50, 40, and 30 days. After these
periods, the rate of germination and the speed of germination are
calculated every 4 days. The rates of germinations concerning the not
scarified seeds having undergone a cold treatment lasting 50 days are
the most important that is a value of 39% from the 09-05-2010 until
the 29-05-2010. The speed germination is maximum that is 89 germinated
seeds /4 days. In addition this same rate reaches a maximum of 70%.
Concerning the pistachio tree seeds of the atlas treated mechanically
with duration of cold treatment at + 4oC during 30 days.
For the same category of seed the speed of germination is maximum that
is 214 seeds/4 days. Thus the scarification and the 30 days stay are
the fastest means which allow to obtain the seedlings of pistachio
tree in a rather short time. 1Department of Biology, University of Boumerdes, (UMBB), Algeria, 2Institute National of Research Forester (I.N.R.F.), Algeria, 3Nationally School Superior Agronomy (E.N.S.A), Algeria, *Corresponding author e-mail: chNADJIBA@yahoo.fr |
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