Effect of low doses of gamma irradiation on in vitro growth of grapevine |
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Authors: | Charbaji T Nabulsi I |
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Institution: | (1) Department of Agriculture, Atomic Energy Commission of Syria, P. O. Box 6091, Damascus, Syria |
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Abstract: | Shoot tips and single node explants of two rootstocks (R.99 and 3309) and two varieties (‘Helwani’ and ‘Cabernet Franc’) of
grapevine cultured on DSD1 media for a period of 60 days, were irradiated with 0, 2, 5 and 7 Gy doses of gamma irradiation.
Shoot length of ‘Helwani’ and ‘Cabernet Franc’ was increased by 7 Gy irradiation. The 5 Gy dose increased the number of roots
in plants of the two rootstocks and ‘Helwani’. Root length of ‘Helwani’ and ‘Cabernet Franc’ at the 2 and 7 Gy doses were
significantly higher than those of the non-irradiated control. A similar effect was noticed on R.99 rootstock subjected to
5 Gy. Five Gy also increased the dry weight of the R.99 rootstock, whereas 2 and 7 Gy had a similar effect on ‘Helwani’ and
‘Cabernet Franc’. Number of leaves of plants exposed to 5 and 7 Gy was increased when compared with the non-irradiated control.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | rootstocks micropropagation tissue culture |
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