Experiment code 16.5.3.10
Experiment Title Response of Bt Cotton to different plant growth regulators
Research Type Departmental Research
Experiment Background Square (floral bud) and boll (fruit) shedding have interested cotton producers and research workers for many years. More attention has been given to boll shedding than to square shedding, possibly because shed bolls are easier to see than the smaller squares. Some researchers regard shedding as a disorder that, if corrected, would greatly increase yield.  Others believe that shedding is a natural process by which the plant adjusts its fruit load to match the supply of organic and inorganic nutrients. Some shedding is inevitable, especially toward the end of a fruiting cycle. Heavy shedding early in the fruiting cycle, however, can usually be attributed to specific causes, many of which can be corrected. Heavy shedding that occurs before a good crop of bolls is set is undesirable because it delays the crop and may reduce yields. With the current emphasis on short-season production to cut costs and avoid late-season insect and weather problems, a good early setting of bolls is highly desirable. Early research workers tried to explain shedding in terms of one or a few factors. For example, Lloyd (1920) attributed variation in shedding of squares and bolls to variations in rain and soil moisture supply. Subsequent work has clearly shown that drought increases shedding, but not all shedding can be attributed to drought. Keeping this in view experiment will conducted.
Experiment Group Basic Science
Unit Type (01)RESEARCH UNIT
Unit (46)MAIN COTTON RESEARCH STATION (SURAT)
Department (269)Main Cotton Research Station Surat
BudgetHead (313/12009/00)313/01/REG/00083
Objective

To study the response of different chemicals on shedding of square and boll in Bt Cotton

Season Kharif
Location Unit Type (01)RESEARCH UNIT
Location Unit (46)MAIN COTTON RESEARCH STATION (SURAT)
Location Department (269)Main Cotton Research Station Surat
Plot No 10
PI Name (NAU-EMP-2015-000593)HITESH RANCHHODBHAI RAMANI
PI Email hrramani@nau.in
PI Mobile 9998380285
Year of Approval 2020
Commencement Year 2020
Completion Year 2023
Design of Experiment

RBD

Crop Spacing (cm x cm)

120x45

Gross Plot (m x m) 4.8 x 7.2 (34.56)
Net Plot (m x m) 2.4 x 6.3 (15.12)
Total Experiment Area (m2) 1060
Plot History Last Three Year

Cotton

Initial Soil Sample Analysis Report

EC-0.77ds/m

pH-7.08

Available Nitrogen- 689.92 kg/ha

Available Potassium (K2O)-443.52 kg/ha

Available phosphorus-(P2O5)-18.03kg/ha

Initial Soil Sample Analysis Report Attachment Attachment Not Available!
Layout Plan

T6

T7

T4

T3

R-III

24

23

22

21

T5

T2

T1

T8

17

18

19

20

ROAD

T7

T3

T5

T2

R-II

16

15

14

13

T4

T1

T8

T6

9

10

11

12

ROAD

T8

T7

T6

T5

R-I

8

7

6

5

T1

T2

T3

T4

1

2

3

4

Layout Plan Attachment Attachment Not Available!
Treatment

Genotypes: G. Cot. Hy. 12 BG-II

Treatment:

 

T1. Control (No spray)

T2. Salicyclic acid @ 0.5 mM at 45, 65 & 85  DAS

T3. 1-Methy cyclo propane @100 ppm at 45, 65 & 85 DAS

T4. 2,3,5- Tri iodo Benzoic acid @ 100ppm at 45, 65 & 85  DAS

T5.Triacontanol @  20 ppm at 45, 65 & 85 DAS

T6.Naphthelic aceatic acid @ 20 ppm at 45, 65 & 85 DAS

T7. Gibberellic acid @ 10 ppm at 45, 65 & 85 DAS

T8. Bassinosteroid @ 10 ppm  at  45, 65 & 85 DAS

Treatment Attachment Attachment Not Available!
(NAU-EMP-2015-000593) HITESH RANCHHODBHAI RAMANI hrramani@nau.in 9998380285 04-12-2021
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(NAU-EMP-2013-000582) VIJAYKUMAR KANTIBHAI VEKARIYA vvekaria@nau.in 9712913345 1/06/2020
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(NAU-EMP-1995-000586) DIPAK HIRALAL PATEL dhpatel@nau.in 9725001521 01/06/2020
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(NAU-EMP-2007-000573) SANJAY LALCHAND PAWAR slp_swm@nau.in 9428065269 01/6/2020
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