Varieties Released
|
S.No |
Variety | Special features |
Photograph |
| BANANA | |||
| 1. | CO 1
(1983) |
§ It is a multiple hybrid involving three parents viz., Ladan (AAB) Musa balbisiana clone Sawai (BB) and Kadali (AA)
§ Resembling hill banana Virupakshi in flavour and taste but recommended for cultivation in plains. § Bunch weighs on an average 10.5 kg having 7 hands with 80-85 fruits, each finger weighing 150-160 g § TSS: 22.6°brix with a crop duration of 14-15 months |
 |
|
2. |
CO 2
(2020) |
§ It is a seedling selection made from the progenies derived from the cross combination of Karpooravalli (ABB) x Pisang Lilin (AA)
§ It is tolerant to nematodes, lesser incidence of Sigatoka leaf spot and Fusarium wilt. § Resembles the commercial cv. Ney Poovan (susceptible to nematode wilt complex) in bunch appearance, finger shape, size and bunch weight. § Average bunch weight is 12-13 kg with 12-14 hands/bunch and 150-160 fingers/bunch. § Yield – 32 tonnes/ha. |
 |
| PAPAYA | |||
| 3 | CO 1
(1972) |
§ It is a dioecious variety selected from ‘Ranchi’.
§ The plants are dwarf in stature and the fruits are round with flattened base. § The fruits weigh around 1.2 to 1.5 kg with a TSS of 11-13 o Brix and have good keeping quality. § Fruits have orange-yellow flesh with no papain odour and hence suitable as a good table variety. |
 |
| 4 | CO 2
(1979) |
§ It is a dioecious dual-purpose variety for dessert purpose and papain extraction
§ It yields 80-100 fruits/tree weighing 1.5 to 2.5 kg. § Yellow coloured pulp with TSS from 12 to 14º Brix. § Yields 25-30g of wet latex and 5-6g of crude papain per fruit § Fruit yield 150-200 tonnes/ha and crude papain yield: 600 kg/ha |
 |
| 5 | CO 3
(1983) |
§ It is a gynodioecious dessert quality variety
§ It is a hybrid derivative of the cross between CO2 and Sun Rise Solo § The fruits are medium-sized; pyriform in shape, red-fleshed with a TSS of 14.6 o Brix § Mean fruit weight is 0.5 to 0.8 kg. It yields 90-120 fruits/plant/year. |
 |
| 6 | CO 4
(1983) |
§ It is a dioecious variety
§ It is a hybrid derivative of the cross CO.1 x Washington § Petioles are purple coloured § Fruits are medium-sized weighing 1.2 to 1.5 kg § Fruits are yellow-fleshed with a TSS of 14.3 o Brix. § The variety yields 80-90 fruits per annum. |
 |
| 7 | CO 5
(1985) |
§ It is a dioecious type suitable exclusively for papain production
§ It is a selection form ‘Washington’ type with the characteristic pink petiole. § The variety yields 75-80 fruits per tree § Crude papain yield: 14.45g/ fruit and 1500 kg/hectare § Each fruit weighs 1.5 to 2.0 kg with a TSS of 13 o Brix. |
 |
| 8 | CO 6
(1986) |
§ The variety is dioecious, dwarf, suitable for papain extraction and dessert purpose
§ It is a selection from ‘Giant’ papaya. § It yields 80-100 fruits per tree. § The fruits are medium-sized weighing 1.8 to 2 kg, yellow-fleshed with a TSS of 13.6 o Brix. § Dry papain yield: 7.5 to 8.0g /fruit purpose. |
 |
| 9 | CO 7
(1997) |
§ This variety is gynodioecious
§ It was developed through multiple crosses involving CP.75 (Pusa Delicious x CO3) and Coorg Honey Dew. § It is superior to CO. 3 in terms of fruit size and quality. § It produces about 110 fruits/tree weighing around 1.0 to 1.2 kg each. § The fruits are oblong, attractive, firm, red-fleshed with a TSS of 16.7%. |
 |
| 10 | TNAU Papaya CO 8
(2012) |
§ A dioecious dual-purpose papaya with red flesh derived from Co.2 papaya.
§ Fruits are oblong-ovate in shape § It yields 75 to 80 fruits per tree with a mean fruit weight of 2.20 kg. § Pulp juicy with the red pulp having a TSS of 13-14% § Suitable for processing and tuity-fruity preparation § Fruit yield 220-230t/ha § Crude papain yield 800kg/ha in two years |
 |
| SAPOTA | |||
| 11 | CO 1
(1972) |
§ It is a hybrid clone of the cross between Cricket Ball and Oval.
§ The fruit shape is a long oval, weighing 125g with a TSS of 18°brix. § A yield of 175 to 200kg per tree can be obtained per year. § The flesh is granular in texture and reddish-brown in colour. |
 |
| 12 | CO 2
(1974) |
§ It is a clonal selection from Baramasi
§ Fruits are obovate to round, weighing 112-168 g § TSS: 23.10 per cent § Yield is 175 kg per tree or 11.8 tonnes of fruits per hectare per year |
 |
| 13 | CO 3
(2000) |
§ It is a hybrid between Cricket Ball and Vavilavalasa.
§ Trees with compact canopy and suitable for high-density planting. § It bears fruits all through the year with a peak during February-June and September-October. § Yield: 157kg of fruits; Under high-density planting system, it yields 40-50t/ha. |
 |
Technologies developed
Banana
- Cultivation of banana cv. Dwarf Cavendish under double hedgerow system with the spacing 1.0 x 1.6 x 2.4 m for higher yield.
- Closer spacing (5’ x 6’) in banana cv. Robusta for higher bunch weight in main, first and second ratoon crops.
- Higher fruit yield in banana cv. Robusta adopting a spacing of 1.2 x 1.2 x 2m under double hedgerow system
- Banana – lablab intercropping system for higher returns.
- Black polyethylene as effective mulch for banana
- Application of 110:35:330g NPK per plant for higher fruit yield in banana Robusta
- Higher bunch weight in banana cv. Poovan under a spacing of 2.1 x 2.1m
- High-density planting (2 x 2m with three suckers per hill) for higher fruit yield in banana cv. Nendran
- High-density planting (3.6 m x 1.8 m with three suckers/hill) for higher yield per hectare with 50% saving in fertilizer cost in banana cv. Robusta
- Application of 50 per cent NPK in soil and rest through foliar sprays at 3rd, 5th, 7th and 9th month for better fruit yield in banana cvs. Robusta and Nendran
- Foliar application of ZnSO4 (0.5%) + CuSO4 (0.2%) + FeSO4 (0.2%) + H3BO3 (0.1%) during 3rd and 5th month after planting for higher fruit yield and quality in banana cv. Robusta.
- Bunch spray of 2, 4-D within 20 days of last hand opening for controlling seediness (Kottaivazhai) in banana cv. Poovan.
- Use of white transparent bunch cover with 2 per cent ventilation for early maturity, lower blemishes and improved fruit characters in banana.
- Fertigation schedule with 100 per cent N & K and soil application of 100 per cent P for higher bunch weight and B:C ratio in banana cv. Robusta.
Papaya
- Application of 50g each in N, P and K at bimonthly intervals from third month after planting, along with biofertilizers and bio inoculants (Azospirillum + VAM(50g/plant) + PSB + Pseudomonas fluorescens (25g/plant) + Trichoderma viride (50g/plant) + PSB + Pseudomonas fluorescens (25g/plant) + Trichoderma viride (50g/plant) for more number of fruits and higher fruit weight.
- Application of 50g each in N, P and K per plant at bi-monthly intervals from the third month of planting after removing unwanted sex forms and 20g each in Azospirillum and Phosphobacterium at planting and again six months after planting for higher fruit yields.
- Application of 10 litres of water per day + 13.5g urea and 10.5g muriate of potash per week through fertigation for more number of fruits and higher fruit weight.
- Foliar application of ZnSO4 5 % + H3BO3 0.1 % during the fourth and eighth month after planting for improved fruit and latex yield.
- Maintenance of one male tree for 20 female trees for proper fruit set.
- Closer spacing of 1.4 X 1.4m for the higher number of fruits and 1.8 X 1.8m for better papain yield per fruit.
Grapes
- Spraying of GA3 at 20 ppm at berry diameter of 8-10 mm for Grapes cv.Red Globe increased the bunch weight (783.04 g), yield per vine (17.23 kg) and yield per hectare (41.50 t) and the highest BC ratio of 4.89 as against 2.57 in control
- Allowing fruiting in 50% of the canes and vegetative growth in remaining 50% of the canes resulted in the highest cumulative yield of 38.20 kg / vine against 31.50 kg/ vine in conventional method (allowing fruiting in all the canes of a vine).