CO.1 (1972)

It is developed by sib mating Ranchi type over a period of eight years. The plants are dwarf in stature and dioecious. Fruits are round with flattened base. They are medium sized and smooth skinned. Slight nipple and ridges present at the apex. Fruits have orange yellow flesh. There is no papain odor in the fruit. It is a good table variety with good keeping quality.

CO.2 (1979)

It is pureline selection from a local type. A dioecious type with good papain yield (4-6g per fruit). Each fruit weighs about 1.5 to 2.0kg. The fruit contains 75per cent pulp with a pulp thickness of 3.8cm. Fruits are oblate and large in size, flesh orange colored, soft with TSS ranging from 11.4 to 13.5°brix. It is a dual purpose variety for fruits and papain extraction. The yield ranges from 80-90 fruits per tree. The fruits contain 8.93% reducing sugars and 9.01% total sugars. The vitamin C content is 50.8 mg per 100g. The papain yield is 250 to 300 kg per hectare.

CO.3 (1983)

It is a hybrid derivative of the cross between CO.2 (female parent) and Sunrise Solo (male parent). It is a gynodioecious type with harmophrodite flowers. It is suitable as a table variety. The fruits are medium sized. The flesh is red with a TSS of 14.6°brix. The mean fruit weight is 0.5 to 0.8kg. Fruits are pyriform in shape. The tree yields 90-120fruits/year.

CO.4 (1983)

It is hybrid derivative of the cross between CO.1 (female parent) and Washington (male parent). Fruits are medium sized weighing 1.2 to 1.5kg. It is a dioecious type. The fruits contain a TSS of 13.2°brix. The flesh is yellow with purple tinge. The tree has purple petiole and stem. Suitable for home gardens. The tree yields 80-90 fruits per annum.

CO.5 (1985)

It is a selection from Washington type. It is a dioecious type suitable exclusively for papain production giving 14.45g of dry papain per fruit. Suitable for growing in all seasons and all soils with good drainage. Petiole color is pink. Duration is two years and yields 75-80fruits per tree with an average yield of 1500-1600kg of dry papain per hectare. Each fruit weighs about 1.5 to 2.0kg. The TSS content of fruit is 13°brix and papain contains 72.2% protein.

CO.6 (1986)

It is a selection from a giant papaya. The plants are dwarf. First harvest can be had in 8 months of planting. It is suitable for papain (7.5 to 8.0g of dry papain/fruit) and also for table purpose. It yields 80­100fruits per tree. The plants are dioecious. The fruits are medium sized each weighing 2kg with yellow flesh. The TSS content is 13.6°brix.

CO.7 (1997)

This variety (culture CP­81) is gynodioecious in nature developed through multiple crosses and purified for over four years. The parents are Pusa Delicious, CO.3, CP.75 and Coorg Honey Dew. It is superior to CO.3 papaya released during 1983. The first bearing height is 52.2 cm with low incidence of stamen carpellody. It produces 112.7fruits/tree with a yield of 340.9t/ha, which is 45.96% more than CO.3. The fruits are oblong with an attractive and firm red flesh. The TSS is 16.7% with total sugar content of 15.80% and carotenoids content of 7.95mg per 100g. The crop has an economic duration of 21 months. There are no serious insect pests. It is susceptible to foot rot, collar rot and powdery mildew like other papaya varieties. It can be grown in plains as well as up to an altitude of 1000m above MSL.

CO.8

• Dioecious, derived through improvement of CO.2
• Red pulped, suitable for dessert, papain and processing
• Duration-2 Years
• Yield - 200-230 t /ha