-
Need help? WhatsApp us at 9620 320 320.
help regarding gibberelic acid for lychee
- Thread starter dhingla
- Start date
manojsinghchandel
Well-Known Member
Litchi
Fruit setting in Litchi, however, takes place in the latter part of flowering and is completed during the last 10 to 15 days. It takes about 8 weeks for the fruits to mature from the date of setting. Fruit drop is a serious problem during initial stages (2-3 weeks) of growth.
A spray of 10 mg of auxin dissolved in one litre during fruit setting stage effectively controls the drop. Fruit cracking is a problem during later stages of fruit growth.
The two types of physiological disorders which are commonly observed are fruit cracking and fruit drop. Fruit cracking is a major problem in litchi resulting in deterioration of fruit quality. Presence of optimum moisture level in the soil during fruit development is crucial for reducing fruit cracking and quality litchi production. Early varieties (e.g. Shahi) are more susceptible to cracking than late ripening one (e.g. China). Application of two foliar sprays of 20 ppm. NAA, first at pea stage of fruit development and second ten days after the first spray and scheduling of irrigation at 20% DASM (at 3 days interval during May-June) should be given to control the disorder. Foliar application of boric acid (0.4 %) and 2,4- D (10 ppm.) is also effective in minimizing the disorder.
1 ppm = 1 mg dissolved in per litre of water
Regds
Manoj Singh
Fruit setting in Litchi, however, takes place in the latter part of flowering and is completed during the last 10 to 15 days. It takes about 8 weeks for the fruits to mature from the date of setting. Fruit drop is a serious problem during initial stages (2-3 weeks) of growth.
A spray of 10 mg of auxin dissolved in one litre during fruit setting stage effectively controls the drop. Fruit cracking is a problem during later stages of fruit growth.
The two types of physiological disorders which are commonly observed are fruit cracking and fruit drop. Fruit cracking is a major problem in litchi resulting in deterioration of fruit quality. Presence of optimum moisture level in the soil during fruit development is crucial for reducing fruit cracking and quality litchi production. Early varieties (e.g. Shahi) are more susceptible to cracking than late ripening one (e.g. China). Application of two foliar sprays of 20 ppm. NAA, first at pea stage of fruit development and second ten days after the first spray and scheduling of irrigation at 20% DASM (at 3 days interval during May-June) should be given to control the disorder. Foliar application of boric acid (0.4 %) and 2,4- D (10 ppm.) is also effective in minimizing the disorder.
1 ppm = 1 mg dissolved in per litre of water
Regds
Manoj Singh