Description
| District / Season | Month | Varieties |
| Irrigated | CO (FS) 29 & CO 31 (Multicut Cholam) | |
| All Irrigated districts | Jan – Feb and Apr – May | |
| Rain fed | ||
| All Districts | (Jun – Jul) |
Yield Potential and Quality Characters
| PARTICULARS | CO (FS) 29 | CO 31 |
| Parentage | Derivative of the cross TNS 30 x Sorghum sudanense |
Gamma ray (400 Gy) mutant of CO (FS) 29 |
| Duration (Days) | Multicut (3 years) |
Multicut (5 years) |
| Average green fodder yield (tons/Acre) | 160-170 (6-7 cuts) | 190-(9-10 cuts) |
| Morphological characters | ||
| Plant height (cm) | 220-250 | 270 – 290 |
| Number of tillers | 10-15 | 12-17 |
| Number of leaves | 80-105 | 90-110 |
| Leaf length (cm) | 75-90 | 85 – 95 |
| Leaf breadth (cm) | 3.5-4.6 | 4.5 – 5.0 |
| Leaf stem ratio | 0.2-0.25 | 0.26 |
|
Quality Characters
|
||
| Protein content (%) | 8.41 | 9.86 |
| Dry matter (%) | 23.60 | 25.9 |
| Crude fibre (%) | 25.60 | 19.80 |
| IVDMD (%) | 50.30 | 52 |
Crop Production:
|
1. |
Preparatory cultivation |
: |
Plough 2-3 times to obtain a good tilth. Form ridges and furrows of 6 m long and 60 cm apart. Spread 25 tones of FYM/ha before ploughing and incorporate well. |
|
2. |
Seed rate |
: |
8 kg / Acre |
|
3. |
Spacing |
: |
30 x 15 cm (Sow on both sides of ridges) |
|
4.
|
Fertilizers |
: |
Basal: 45 : 40 : 40 kg NPK/ha |
|
5.
|
Weed Management |
: |
First weeding on 25-30 DAS. There after based on necessity. |
|
6.
|
Water Management |
: |
Once in 7-10 days depending upon soil condition. |
|
7.
|
Harvest |
: |
First harvest at 75-80 days after sowing and subsequent harvests once in 50 days |
|
8.
|
Green fodder yield |
: |
190 t/ha/year in 6-7 harvests |
Crop Protection:
Shoot fly (Atherigona soccata)
Symptoms
- Dead heart symptom at seedling stage (upto 30 days) .
- Dead heart plant with rotting smell pulled out easily.
- Side tillers production.
Identification of Pest
- Egg: white, cylindrical, distal end somewhat flattened (Cigar shaped).
- Maggot: Dirty white and apodous, later yellow and 6 mm long.
- Pupa: Brown puparium
- Adult: whitish grey female fly.
Management
- ETL: 10% dead hearts or 1 egg / plant.
- Sow immediately at the onset of monsoon rains.
- Seed treatment : Imidacloprid 70 WS @ 10 g/kg of seeds.
- Set up hanging plastic fishmeal trap @ 12 nos. /ha upto 30 DAS.
Aphids (Rhopalosiphum maidis) Symptoms
- Plant yellow and wilt with large number of aphids.
- Honeydew secretion, sooty mould on leaves.
Identification of insect pests
- Nymphs: light green.
- Adults: Bluish or olive green adults.
Management
- Conservation of several parasitic wasps, ladybird beetles, syrphid fly larvae, and lacewing larvae and adults.
Seed production
Land Requirements
- Land shall be free of volunteer plants including sudan grass.
Field Standards
A. General Requirements
- Isolation: Fields shall be isolated with following specified isolation distances.
|
Contaminants
|
Minimum distance (meters)
|
|
| Foundation | Certified | |
| Fields of other varieties of grain and dual-purpose sorghum | 200 | 100 |
| Fields of same variety not confirming to varietal purity requirements | 200 | 100 |
| Johnson grass (Sorghum halepense (L.)) and other grassy Sorghum spp. | 400 | 400 |
B. Specific Requirements
| Factor | Maximum permitted (%)*
|
|
| Foundation | Certified | |
| Off-types at any one inspection at and after flowering | 0.10 | 0.20 |
| *Heads infected by Kernel smut or Grain smut (Sphacelotheca sorghi) and Head smut (Sphacelotheca reiliana) at final inspection | 0.050 | 0.10 |
Note: Seed fields should be thoroughly rogued for sugary disease/ergot infected plants so as to meet the seed standards However, seed fields shall not be rejected for the infected earheads.
- Seed rate: 5 kg/ha .
- Seed treatment: Treat the seeds with 600 g of Azospirillum and 600g of Phosphobacteria or 1200g of Azophos.
- Spacing: 50 x 20 cm.
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Factor
|
Standards for each class
|
|
| Foundation | Certified | |
| Pure seed (minimum) | 97.0% | 97.0% |
| Inert matter (maximum) | 3.0% | 3.0% |
| Other crop seeds (maximum) | 5/kg | 10/kg |
| Weed seeds (maximum) | 5/kg | 10/kg |
| Other distinguishable varieties (maximum) | 10/kg | 20/kg |
| Ergot (Claviceps spp.) sclerotia, seed entirely or partially modified as sclerotia, broken sclerotia or ergotted (Sphacelia sorghi & Claviceps spp.) seeds (maximum) | 0.020% (by no.) |
0.040% (by no.) |
| Germination (minimum) | 75% | 75% |
| Moisture (maximum) | 12.0% | 12.0% |
| For vapour-proof containers (maximum) | 8.0% | 8.0% |
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