1. Spraying ethephon
2. Genetic engineering
3. Polyploidy breeding
4. Tissue culture
Tissue culture
1. 10%
2. 15%
3. 25%
4. 35%
25\%
1. H+-ATPase uniport system
2. Na+-ATPase uniport system
3. H+-Cl- symport system
4. Na+-H+ antiport system
Na<sup>+</sup>-H<sup>+</sup> antiport system
1. Increased shoot/root ratio
2. Increased rate of respiratory quotient
3. Increased rate of photosynthesis
4. Decreased shoot/root ratio
Decreased shoot/root ratio
1. I and III
2. I and II
3. II and III
4. II and IV
I and III
1. 486
2. 54
3. 489
4. 492
492
1. I and III
2. III and IV
3. II and III
4. I and III
I and III
1. Palynology
2. Anatomy
3. Histology
4. Cytology
Cytology
1. Watson and Crick
2. Jacob and Monod
3. Khorana and Kornberg
4. Beadle and Tatum
Watson and Crick
1. pericycle
2. medulla
3. epidermis
4. cortex
cortex