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Cultivation Practices of Seed Production of Often Cross Namely Cotton and Jawar

Sr.No

Particulars of Cultivation Practices

Crop Cotton (High Yielding Varieties)

Crop Cotton Hybrid

1

Selection of land

Free from Wilt

Free from Wilt

2

Sowing Time

June ( Rainfed), Second fortnight of May and June ( Irrigated)

June ( Rainfed), Second fortnight of May and June ( Irrigated)

3

Sowing Method

Drilling

Dibbling

4

Spacing (cm)

Deshi 45 X22.5 , American 60X 30

Female 150 X 120 Male 90 X 60

5

Planting ratio- Female : Male

-

on Area basis 3/4 : 1/4 or 1/5:4/5

6

Seed rate (kg/ha)

Deshi-10-12 , American -8 to 10

Female -3.75, Male-2.75

7

Fertilizers doses (NPK kg/ha) with splitting of N except tur crop.

100:50:50 plus two foliar sprays of Urea /DAP (15-20 gms/lit. i.e 2% during boll formation.

100:50:50 plus two foliar sprays of Urea /DAP (15-20 gms/lit. i.e 2% during boll formation.

8

Isolation Distance (mtrs)

F-50, C-30 ( 5 mtrs between parents of hybrids and field of other varieties.

F-50, C-30 ( 5 mtrs between parents of hybrids and field of other varieties.

9

Field Inspection

2

4

10

Off Types(%)

F-0.10,C-0.20

F-0.10,C-0.50

11

Pollen shedders (%) When ms line s used

-

F-0.05,C-0.10

12

Objectionable Weeds(%)

Ranbhendi, Holley hock.

Ranbhendi, Holley hock.

13

Objectionable Disease (%)

-

-

14

Seed Yield ( Q/ha)

Seed cotton Deshi , seed cotton - 8 to 10 American 2 top 3 ,10 to 12

Seed cotton Deshi , seed cotton - 8 to 10 American 2 top 3 ,10 to 12

15

After Harvest Seed Moisture (%)

10

10

16

Germination (% ) minimum

65

65

17

Seed Borne Disease

-

-

18

Other Disease

Fusarium wilt, Antrac nose

Fusarium wilt, Antrac nose

19

Major Pests

Boll worms ( Pink, American and sported jassids and aphids, trips)

Boll worms ( Pink, American and sported jassids and aphids, trips)

20

Improved Varieties and Hybrids

Deshi-Y1,Savatra, American ,LRA5166, JLH168 ,Rajat,AKA5,AKA-4. Hybrids: HXH,H6,H10,NHH44,PKV hy4, HXB- NHB12, HXA -DH9.

Deshi-Y1,Savatra, American ,LRA5166, JLH168 ,Rajat,AKA5,AKA-4. Hybrids: HXH,H6,H10,NHH44,PKV hy4, HXB- NHB12, HXA -DH9.

 
Note:
Minimum pure seed ( 98%) and maximum inert matter (2%) is recommended as physical purity standards for all above crops Abbreviations used HYV- High yielding Varieties , HYB-High Yielding hybrids, F and C- Foundation and certified stage of seed production , K- kharif , R-Rabi, H-G hirsutum B-G barbadense H’G Herbaceum, A-G arboretum.

Current Category » Principles of Seed Technology