Botanical Details
Scientific Name: Musa paradisiaca L / M. cavendishii L
Family: Musaceae
Chromosome Number: 2n = 22, 33, 44
Introduction
Banana is a key tropical fruit and ranks fourth among global food commodities. India contributes around 32% of the world's banana production. It's the only tropical fruit exported in substantial quantities, playing a major role in international trade.
Known as the “apple of paradise,” banana is believed to be one of the earliest fruits cultivated by humans. It is often referred to as “Adam’s fig” or the “tree of wisdom.” Bananas are staple food in many African countries and are consumed both raw and ripe throughout the year.
Uses and Nutritional Composition
Referred to as “Kalpataru” due to its multiple utilities, banana is mainly consumed as a ripe fruit. In many Central and West African countries, cooking bananas or plantains are staple foods. Banana flowers and the central pseudostem core are also used in cooking.
Banana leaves are used as serving plates, while the sheath serves as a wrapping material. Dry leaves are used as fuel and other plant parts as cattle feed. Processed products include chips, puree, flour, vinegar, jam, jelly, and wine. Banana fiber is used to make eco-friendly products like table mats and bags.
Bananas are rich in energy (350–550 kJ/100g), containing 73% moisture, 25–30% carbohydrates, 1.4% protein, 0.3% fat, 0.5% minerals (including calcium, iron, phosphorus, potassium), and vitamins C and K. They help treat ulcers, acidity, hypertension, joint pain, and heart diseases.
Origin and Distribution
Banana is native to tropical South-East Asia, particularly India, Papua New Guinea, Malaysia, and Indonesia. India possesses the second-largest diversity of indigenous bananas, with over 300 germplasms out of the 600 reported globally. Edible bananas originated from natural hybrids of Musa acuminata and Musa balbisiana.
Globally, bananas are cultivated between 30°N and 50°S latitudes. Major banana-producing countries include India (17 million tons on 0.5 million ha), Kenya, Uganda, Sudan, Fiji, Philippines, Taiwan, Australia, and others. In India, bananas are the second most grown fruit after mango, occupying 20% of the fruit crop area and contributing 32% to fruit production.
Soil and Climate
Banana thrives in diverse soils, but deep, well-drained loamy soil rich in organic matter is optimal. It can tolerate slightly alkaline conditions but not water stagnation. The ideal pH range is 6.5–7.5. The crop is suited for tropical climates, grows up to 1200 m altitude, and prefers temperatures between 25–30°C. Frost and extreme temperatures negatively affect growth.
Species and Cultivars
The Musaceae family includes two genera—Ensete and Musa. The genus Musa has 40–45 species, with several cultivated varieties. It is divided into the following sections:
- Eumusa (2n=22): Largest section; includes cultivated parthenocarpic bananas from M. acuminata (A) and M. balbisiana (B).
- Callimusa (2n=10): Ornamental types; parthenocarpy absent.
- Australimusa (2n=20): Female-sterile fruits with orange skin and red sap. Example: Musa textilis (Manila hemp).
- Rhodochlamys (2n=22): Ornamental plants like M. ornate and M. velutina.
- Incertae sedis (2n=14): Tall species like M. ingens and M. beccarii.
Edible bananas are usually diploid (2n=22), triploid (2n=33), or tetraploid (2n=44). Triploid cultivars are most common.
Propagation
Banana is propagated vegetatively using suckers, rhizomes, or tissue culture plants due to its parthenocarpic nature. It produces two types of suckers:
1. Water Suckers
- Broad leaves and weak pseudostem.
- Poorly developed rhizomes.
- Lower yield and longer time to fruit (over 18 months).
2. Sword Suckers
- Well-developed rhizome and pseudostem.
- Yield in 12–13 months with large bunches.
- Develop close to the mother plant, ensuring strong growth.
Selection Criteria for Planting Material
- Source from disease-free orchards.
- Preferred weight: 1.0–1.5 kg.
- Select sword suckers from high-yielding mother plants.
- Free from rhizome weevil infestation.
- Ideal sucker age: 3–4 months.
- When unavailable, split rhizomes or rhizome bits can be used.
- Tissue culture plants are preferred for commercial cultivation.
Sucker Preparation (Paring & Pralinage)
- Remove old leaves, roots, and soil particles.
- Cut the sucker 15 cm above the rhizome.
- Dip suckers in cow dung slurry and treat with phorate (10–15 g/rhizome) to prevent pests.
- Rhizomes may also be dipped in fungicide solution and cut at a slant for planting.
Planting Methods
Nutrient Management
Species | N (kg/ha) | P (kg/ha) | K (kg/ha) | FYM (t/ha) |
---|---|---|---|---|
Dwarf Cavendish | 540 | 325 | 675 | 40 |
Robusta | 405 | 245 | 507 | 40 |
Others | 400 | 240 | 500 | 40 |
Irrigation Management
Weed Control
Important Cultural Practices
Use of Plant Growth Regulators (PGRs)
Maturity and Harvest
- Drying of top leaves
- Plump fruit with reduced angularity
- Basal fruit shows ripening signs
- Starch content: 22–25%
Mattocking
Yield
Cavendish: ~40 t/ha
Hill/Cooking types: 11–15 t/ha
Post-Harvest Management
Rhizome and Sucker Production
Major Pests and Diseases
- Pseudostem Borer: Causes sap exudation and black mass.
- Rhizome Weevil: Damages corm. Nendran is highly susceptible.
- Aphids: Transmit Banana Bunchy Top Virus (BBTV).
- Scarring Beetle: Affects fruits/leaves in rainy season.
- Panama Wilt: Caused by Fusarium oxysporum. Rasthali = susceptible; Robusta = resistant.
- Sigatoka Leaf Spot: Yellow to brown leaf lesions. Gros Michel = susceptible; ABB clones = resistant.
- BBTV: Causes rosetting, stunted growth, no bunching. Transmitted by aphids.