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EVALUATION OF SALT TOLERANCE IN CALLUS, SEEDS AND SEEDLING OF FIVE VARIETIES OF RICE Oryza sativa L | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 14, Issue 6, 2009, Pages 0-0 | ||
| Authors | ||
| S.M. Bader; A.A.K. Towfiq; S.M. Al-Mashadni | ||
| Abstract | ||
| The effects of 0, 0.25, 0.5, 0.75, 1, 1.25 and 1.5 % NaCl on callus growth, seed and seedling stages for five rice (Oryza sativa L.) cultivars (Al-Manathera, Ambar Baghdad, Ambar 33, Iraqi – Basmati and Al- Abasia) were studied . MS medium supplemented with 3 mg/ L 2, 4- D, 0.2 mg/L BA and 300 mg/L casein hydrolysate were added to the culture medium for callus induction on mature rice seeds. For seed and seedling growth, MS medium free of plant growth regulators was employed. Results showed that differences occurred between species in their response to NaCl. Amber Baghdad followed by Al-Manathera was the best in salt tolerance. Amber 33 was the most sensitive since it directly affected at lower concentrations of NaCl, while Al-Abasia was affected by the highest concentration. Also results showed that the germination stage was the most sensitive than seedling stage where no inhibitory effects were found. | ||
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