Breeding of Vegetable, Spice and Tuber crops (2+1)

Application

Application of Cytoplasmic Male Sterility in Plant Breeding

• It is applicable in production of hybrids in ornamental crops and vegetatively propagated crops. But in those of crop plants where seed is the economic part, it is of no use because the hybrid progeny would be male sterile.
• Example – Onion
• Application of Genic Male Sterility in Plant Breeding
• It is applicable in production of hybrids in both, vegetative propagated crops and crops important for fruit or seed yield.
• Examples – Tomato and cucurbits

Application of Cytoplasmic-Genic Male Sterility in Plant Breeding

• It is used in commercial production of hybrid seeds in Maize, Sorghum and Bajra.
• Examples – It is observed in maize, sorghum, bajra, sunflower, rice and wheat.
• The one with cytoplasmic male sterility would be included in the cytoplasmic genetic system as and when restorer genes for it are discovered.