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Experiment code
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20.5.3.1 |
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Experiment Title
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Effect of time and intensity of girdling on flowering, yield and quality of mango |
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Research Type
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Departmental Research |
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Experiment Background
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The culture of fruit trees is geared toward production of a high-value crop, reduce fruit drop integrating quantity and quality. This is achieved by various techniques; including breeding, nutrition, pest control and bio-regulators as well as direct manipulations of the plant itself. Direct plant manipulations leading to the desired yield consist of two kinds of horticultural techniques. Removal of certain tree organs (e.g. training, pruning, fruit thinning) and interference with translocation between major tree organs (e.g. girdling, ringing, scoring, branch bending, which modifies auxin distribution, may be included in this second category). Girdling is basically an intervention in the phloem transport between canopy and roots, in an attempt to manipulate the distribution of photosynthate, mineral nutrients and plant bio-regulators (Goren et. al., 2004). Pattern of movement and distribution of photosynthate in mango at various stages of flowering and fruit development, the immediate and most direct reason for the heavy drop of fruit lets is the competition between them for a limit supply of photo-assimilates, as well a competition from developing shoots for these substances. Girdling generally causes an accumulation of carbohydrate above the girdle and a diminution of carbohydrates in the root system. It would be there for expected that the number of fruit retained by bearing mango trees would be increased by girdling. |
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Experiment Group
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Horticulture |
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Unit Type
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(02)EDUCATION UNIT |
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Unit
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(13)ASPEE COLLEGE OF HORTICULTURE (NAVSARI) |
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Department
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(211)Fruit Science, ACHF, Navsari |
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BudgetHead
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(329/12025/00)329/01/REG/00277 |
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Objective
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1. To study the effect of intensity of girdling on flowering, yield and quality of mango
2. To know the effect of time of girdling on flowering, yield and quality of mango
3. To study the combine effect of intensity and time of girdling on flowering, yield and quality of mango
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Season
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Perennial |
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Location Unit Type
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(02)EDUCATION UNIT |
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Location Unit
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(13)ASPEE COLLEGE OF HORTICULTURE (NAVSARI) |
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Location Department
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(211)Fruit Science, ACHF, Navsari |
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Plot No
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D-2 |
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PI Name
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(NAU-EMP-2009-000976)YATINKUMAR NARANBHAI TANDEL |
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PI Email
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yatintandel1512000@nau.in |
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PI Mobile
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9601283385 |
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Year of Approval
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2024 |
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Commencement Year
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2024 |
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Completion Year
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2027 |
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Design of Experiment
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RBD
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Crop Spacing (cm x cm)
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10 m X 10 m
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Gross Plot (m x m)
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- |
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Net Plot (m x m)
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- |
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Total Experiment Area (m2)
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9000 |
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Plot History Last Three Year
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35 year old mango plantion
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Initial Soil Sample Analysis Report
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-
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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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-
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Layout Plan Attachment
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Attachment Not Available! |
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Treatment
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Factor A- Time of girdling (T)
T1: 15th June
T2: 15th July
T3: 15th August
Factor B- Girdling Intensity (G)
G1 : 25 % girdling on main trunk
G2 : 50 % girdling on main trunk
G3 : 75 % girdling on main trunk
G4 : 100 % girdling on main trunk
Absolute control
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Girdling will be done with use of sharp pruning saw and small scale measurement tape for maintaining proper width (0.5 cm) of girdling portion as per treatment. Girdling will done very carefully without damage of xylem tissue, only cut will made between peel and xylem. After girdling, applied the copper oxychloride 50 % WP paste will be apply on girdling portion to protection from the fungal infections.
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Treatment Attachment
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Attachment Not Available! |