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(A) Plant Breeding
1.
G.Cot.18 (GJHV-34) have been developed by this station
and released for different production conditions in
the state. It is recommended for rainfed condition in
wagad zone and rainfed as well as irrigated condition
for Junagadh district.
|
Sr.No. |
Crop/Released Variety |
Year of release |
Average yield (kg/ha) |
Yield potential (kg/ha) |
|
1 |
G-Cot-18 |
1999 |
1535 |
2535 |
Remarks : 26.4 and 111.7% higher yield over G.Cot.10
and Deviraj.
2. Provided contribution in testing, evaluation and
release of cotton varieties G.Cot–10, G.Cot–100, G.Cot–12,
G.Cot–14 and hybrids G.Cot.hy-4, G.Cot.hy-6,
G.Cot.hy-8, G.Cot.hy-10, G.Cot.hy-12 and G.Cot.Hy-102.
(B) Agronomy:
1.
Farmers of Junagadh dist. are advised to sow
G.Cot.Hy.6 at 90 x 30 cm or 90 x 45 cm. Spacing with
application of 160 kg N/ha. Of the total nitrogen 25%
of nitrogen sould be applied as basal dressing and
remaining 75% of nitrogen should be applied in three
equal splits at an interval of one month from basal
dressing. Application of phosphorus and potash is not
recommended.
2
.For securing higher seed cotton yield & net
realization as well as net I.C.B.R. farmers of South
Saurashtra Zone – VII growing irrigated cotton
G.Cot.Hy.8 are advised to sow at 90 x 30 cms. Spacing
with application of 80 kg N/ha.
3.
Maximum seed cotton yield, net income and ICBR was
obtained by application of 10 t FYM/ha + 100 % N2
(2147 kg/ha), Rs. 19693 /ha and 1:3.36, respectively.
(C) Agricultural Entomology :
1.
Control of pink bollworm in cotton, it is recommended
to the farmers of Saurashtra region that the spraying
of quinalphos @ 500 gai./ha (Quinalphos 25 EC 28 ml/10
lit. water) or spinosad @ 50 gai/ha (Spinosad 45 SC 2
ml/10 lit. water) when pest crosses the ETL (10 male
moths collected in pheromone trap per day).
2.
Management of pests of cotton, the following IPM
strategies are recommended for cotton growing farmers
of Saurashtra (ICBR 1:5.70).
(1) Seed treatment with Imidacloprid @ 10 g/kg
seeds
(2) Hand collection of infected shoots of spotted
bollworm in the early stage.
(3) Installation of pheromone trap @ 5/ha, one
week after germination to monitor the bollworm
infestation.
(4) Early release of Chrysoperla @ 10,000
eggs/larvae/ha (3 releases)
(5) Spraying of Neem formulations @ 5 %
(6) Release of Trichogramma @ 1.5 lakh/ha (4
relaeses)
(7) Spraying of HNPV @ 450 LE/ha for Helicoverpa
(8) Hand collection of eggs and larvae of
Helicoverpa
(9) Planting of maize as a intercrop (10:1),
marigold and castor as a trap crop in and around the
cotton
(10) Need based application of insecticides for
sucking pests and bollworms based on ETL |