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Garden Lab Lab


SEASON AND VARIETIES

DISTRICT/SEASON VARIETIES
Adipattam (Jul - Aug)
Kanchipuram, Tiruvallur, Dharmapuri, Coimbatore, Madurai, Dindigul, Theni, Vellore, Tiruvannamalai, Ramanathapuram, Virudhunagar, Sivagangai, Tirunelveli, Thoothukudi , Salem, Namakkal, CO 13, CO (Gb) 14
Thanjavur, Tiruvarur, Nagapattinam, Tiruchirapalli, Perambalur, Karur, Pudukottai, Kanyakumari, Erode CO 12, CO 13, CO (Gb) 14
Purattasipattam (Sept - Nov)
Kanchipuram, Tiruvallur, Tiruchirapalli, Perambalur, Karur, Vellore, Tiruvannamalai, Cuddalore, Villupuram. Dharmapuri, Salem, Namakkal CO 13, CO (Gb) 14 CO 13, CO (Gb) 14
Pudukottai, Erode, Coimbatore, Madurai, Dindigul, Theni, Ramanathapuram, Sivagangai, Virudhunagar, Tirunelveli, Thoothukudi , Thanjavur, Tiruvarur, Nagapattinam. CO 12, CO 13, CO (Gb) 14
Summer (April)
Kanchipuram, Tiruvallur, Vellore, Tiruvannamalai, Cuddalore, Villupuram. CO 12, CO 13, CO (Gb) 14
Dharmapuri, Salem, Namakkal, Thanjavur, Tiruvarur, CO 12, CO 13, CO (Gb) 14
Nagapattinam. Kanyakumari, Pudukottai, Erode, Coimbatore, Madurai, Dindigul, Theni, Ramanathapuram, Virudhunagar, Tirunelveli, Thoothukudi, Sivagangai CO 12, CO 13, CO (Gb) 14

II. DESCRIPTION OF MOCHAI VARIETIES

Particulars CO 12 CO 13 CO (Gb) 14
Parentage Pedigree selection from CO 9 x CO 4 Derivative of CO 9 x Florikifield Cross derivative of CO 9 x CO 4
Year of release 1991 1997 2007
1st flowering (days) 40 40 35-40 80-85 days (seed to seed)
Duration 100 - 110 days 110 - 120 days 70-75 days (vegetable type)
Grain yield (kg/ha)
Irrigated 9700 10000 7584 Green pod
Habit Erect, bushy and tendency to form tendrils Erect, bushy and tendency to form tendrils Dwarf, bushy without tendrils
Height (cm) 60 - 70 50 - 75 56-62
Colour of flowers Purple White White
Colour of pod Deep purple Whitish green  
Shape of pod Broad, flat Flat and long  
Colour of grain Black Brown Raddish brown
100 seed wt (g) 38.4 35.2 34-36

CROP MANAGEMENT

MANAGEMENT OF FIELD OPERATIONS

1. FIELD PREPARATION

      Prepare the land to fine tilth. Form beds and channels for bushy types.

SEED RATE

Particulars Quantity of seed required kg/ha
Sole crop Mixed crop

CO 12

20

10.0

CO 13

25

-

2. SEED TREATMENT WITH FUNGICIDES

Treat the seeds with Carbendezim (or) Thiram @ 2g/kg of seed 24hrs before sowing (or) with talc formulation of Trichoderma viride @ 4 g/kg seed (or) Pseudomonas fluorescens@ 10 g/kg seed. Biocontrol agents are compatible with biofertilizers. First treat the seeds with biocontrol agents and then with Rhizobium. Fungicides and biocontrol agents are incompatible.

3. SEED TREATMENT WITH BACTERIAL CULTURE

Fungicide treated seeds should be again treated with bacterial culture. There should be an interval of atleast 24 hours between fungicidal and bacterial culture treatments. Three packets of  bacterial culture are sufficient for treating seeds required for one ha. The bacterial culture slurry may be prepared with rice kanji. Dry the inoculated seeds in shade for 15 minutes, before sowing.

 4. FERTILIZER APPLICATION

a)  Apply fertilizers basally before sowing.
     Rainfed : 12.5 kg N + 25 kg P2O5 + 12.5 kg K2O +10 kg S*/ha
     Irrigated : 25 kg N + 50 kg P2O5 + 25 kg K2O + 20 kg S*/ha
                    *Note : Applied in the form of gypsum if Single Super Phospate is not applied as a source  of phosphorus
b)   Soil application of 25 kg ZnSo4/ha under irrigated condition     

5. SOWING

Dibble the seeds adopting the following spacing.

Varieties Space
CO 12 45 cm X 15 cm
CO 13, CO (Gb) 14 45 cm X 30 cm

6. WEED MANAGEMENT

  • Pre emergence application of Pendimethalin 2 litres/ha  on 3 days after sowing using Backpack/ Knapsack/Rocker sprayer fitted with flat fan nozzle using 500 l of water for spraying one ha. After this, one hand weeding on 40-45 days after sowing gives weed free environment throughout the crop period.
  • If herbicides are not applied give two hand weedings on 25 and 45days after sowing.

7. WATER MANAGEMENT

Irrigate immediately after sowing, followed by life irrigation on the third day. Irrigate at intervals of 7to 10 days depending upon soil and climatic conditions. Flowering and pod formation stages are critical periods when irrigation is a must. Avoid water stagnation at all stages. Apply KCl at 0.5 per cent as foliar spray during vegetative stage if there is moisture stress.

8. PRUNING TECHNIQUE

A spacing of about 10 feet between lines and four feet between plants are adopted. Pits are dug and two to three seeds are sown in the middle of the pit. One healthy seedling is allowed to grow and the rest removed. The vine is propped with a stick. When the vine reaches the pandal, the terminal bud is nipped. Allow the branches to trail over the pandal. Each branch may be pruned at three feet length so that the pandal is covered with vines. Branches arising on the main vine below the pandal are removed. When flowering starts, prune the tip of the branches bearing inflorescence having three nodes from the productive axil. Continue this procedure throughout the reproductive phase.

9. HARVESTING

      Pick the pods when they are completely dry. Thresh the pods and clean the beans. Pick the tender pods once in a week for vegetable purpose.

10. Crop Protection

11. Post Harvest Technology

Updated on : March 2014