TY - JOUR T1 - Study of Callus Induction and Plant Regeneration from Immature Embryo Culture in Rice Cultivars TT - بررسی کالوس‌ زایی و باززایی از کشت جنین نارس ارقام برنج JF - JSTNAR JO - JSTNAR VL - 4 IS - 4 UR - http://jstnar.iut.ac.ir/article-1-113-en.html Y1 - 2001 SP - 57 EP - 72 KW - Rice KW - Oryza sativa L. KW - Immature embryo culture KW - Callus induction KW - Regeneration. N2 - This study was conducted to evaluate the response of 18 rice (Oryza sativa L.) genotypes to callus induction and plant regeneration from immature embryo culture, using three media (MS, LS and N6). To evaluate callus induction rate, the following criteria were used: callus diameter, callus fresh weight and callus dry weight. Percentage of callus water content was also measured. After transferring the produced calli from the induction media to a regeneration medium (MSR), percentage of plant regeneration was evaluated. A highly significant difference was observed among genotypes for both callus induction and plant regeneration (P M3 ER -