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Experiment code
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BHR. Agro. III (CJA-19.2.3.64) |
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Experiment Title
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Canopy management through plant growth regulator in Bt. Cotton hybrid under rainfed condition (2023) |
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Research Type
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State Trial |
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Experiment Background
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The technology of cotton defoliation is essential for mechanical cotton harvesting. Agricultural unmanned aerial vehicle (UAV) spraying has the advantages of low cost, high efficiency and no mechanical damage to cotton and has been favored and widely used by cotton planters in China. However, there are also some problems of low cotton defoliation rates and high impurity rates caused by unclear spraying amounts of cotton defoliants. The chemical rate recommendation and application should be based upon crop canopy volume rather than on land area. Plant height and leaf area index (LAI) is directly connected to plant canopy structure. Accurate dynamic monitoring of plant height and LAI provides important information for evaluating cotton growth and production. The traditional method to obtain plant height and LAI was s a time-consuming and labor-intensive task. It is very difficult and unrealistic to use the traditional measurement method to make the temporal and spatial variation map of plant height and LAI of large cotton fields. With the application of UAV in agriculture, remote sensing by UAV is currently regarded as an effective technology for monitoring and estimating plant height and LAI. |
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Experiment Group
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Natural Resource Management |
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Unit Type
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(01)RESEARCH UNIT |
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Unit
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(50)REGIONAL COTTON RESEARCH STATION MAKTAMPURA (BHARUCH) |
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Department
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(276)Regional Cotton Research Station, N.A.U., Maktampur, Bharuch |
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BudgetHead
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(317/05009/00)317/12/REG/00679 |
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Objective
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(1) To manage plant canopy of Bt cotton hybrid grown under
narrow spacing through plant growth regulator
(2) To study the effect of plant growth regulator on growth and
yield of Bt cotton hybrid
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Season
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Kharif |
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Location Unit Type
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(01)RESEARCH UNIT |
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Location Unit
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(50)REGIONAL COTTON RESEARCH STATION MAKTAMPURA (BHARUCH) |
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Location Department
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(276)Regional Cotton Research Station, N.A.U., Maktampur, Bharuch |
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Plot No
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6B |
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PI Name
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(NAU-EMP-2011-000446)MANISHKUMAR MAGANLAL PATEL |
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PI Email
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mmpatel@nau.in |
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PI Mobile
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9428956220 |
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Year of Approval
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2023 |
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Commencement Year
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2023 |
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Completion Year
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2025 |
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Design of Experiment
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FRBD
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Crop Spacing (cm x cm)
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120 X 45
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Gross Plot (m x m)
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7.20 X 6.30 |
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Net Plot (m x m)
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D1: 5.40 X 5.70 D2: 5.40 X 5.10 D3: 4.80 X 5.40 |
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Total Experiment Area (m2)
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0.1814 |
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Plot History Last Three Year
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Nil
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Initial Soil Sample Analysis Report
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Result awaited
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Initial Soil Sample Analysis Report Attachment
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Attachment Not Available!
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Layout Plan
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1
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8
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9
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16
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3
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7
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10
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15
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|
|
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4
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6
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11
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14
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|
|
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2
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5
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12
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13
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R-III
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1
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8
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9
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13
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4
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7
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10
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16
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|
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3
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6
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11
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15
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2
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5
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12
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14
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R-II
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4
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8
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9
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16
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3
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7
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10
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15
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2
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6
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11
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14
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1
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5
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12
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13
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R-I
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8-Row
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8-Row
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6-Row
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12-Row
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Layout Plan Attachment
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Attachment Not Available! |
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Treatment
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Details of treatment
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- Spacing (S)
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- Plant growth regulator (G)
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S1 : 120 x 45 cm
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G1 : Mepiquate chloride @ 50 g ai/ha
(in 2 spray at 45 and 60 days after sowing)
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S2 : 90 x 15 cm
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G2 : Mepiquate chloride @ 50 g ai/ha
(in 2 spray at 45 and 75 days after sowing)
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S3 : 90 x 30 cm
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G3 : Mepiquate chloride @ 50 g ai/ha
(in 2 spray at 60 and 75 days after sowing)
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S4 : 60 x 30 cm
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G4 : Control (Water spray)
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Treatment Attachment
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Attachment Not Available! |