Guava

• Botanical Name: Psidium guajava
• Family: Myrtaceae
• Origin: Peru
• Also known as apple of poor or poor man’s apple.
• Guava improvement work was started in 1907 at Pune.

Guava-Bahar season

• Fruit bearing takes place 3 times in South India.
• Two type of fruits, completely seedless and partly seeded are borne on the plant of seedless variety.
• Guava harvested throughout year except May and June.
• Chinese guava — P. fridrichsthalianum — dwarfing rootstock and resistant to guava wilt and nematodes.
• High density planting reduces TSS, sugars and ascorbic acid but increases titrable acidity.
• L-49 is more susceptible to Bronzing than Allahabad safeda.
• Fruit quality of winter crop is best, it escapes the attack of fruit flies.
• Practice of taking winter crop instead of rainy season crop is known as crop regulation (to escapes the attack of fruit flies).
• Rainy season crop can be removed by spraying of urea (10%) on Allahabad safeda and 20% on Lucknow-49 at the time of peak flowering period.
• Uttar Pradesh produce-best quality Guava. Allahabad region of UP is known for best quality guava production.
• Vitamin-C content highest in fruit peel at mature stage.
• Most useful in human diet for avoiding scury disease.
• Guava wilt is most common in Alkali soil.
• Guava can tolerate salinity but is susceptible to soil acidity.
• Dwarfing rootstock: Anueploid-82.
• Stooling is the most common & cheapest method of guava propagation. Air layering is also done.
• Bending in Guava — practiced in Maharashtra.
• Pruning: Above 90 cm, lateral shoots are not allowed to grow.
• Rich source of pectin.
• Meadow orcharding technique was developed in guava for horizontal utilization of space [2.0 m (row to row) x 1.0 m (plant to plant)].

Varieties

• Behat coconut: Seedless Guava
• Lucknow-49 (Sardar): Chance seedling selection from Allahabad Safeda in 1927 in Pune by Dr. Cheema.
• Allahabad Safeda: famous variety of Allahabad
• Lalit: 24% higher yield than Allahabad Safeda. Pink flesh. Suitable for Jelly making.
• Chittidar: Fruits are characterized by numerous red dots on skin.
• Harijha: Most popular in Bihar.
• Hafsi: Red fleshed guava.
• Apple colour
• Arka mridula: Seedling selection from Allahabad safeda, soft seeded variety.
• Allahabad round: Parthenocarpic variety
• Allahabad Surkha: Uniform pink fruit with deep pink flesh.
• Saharanpur seedless
• Nagpur seedless

• Arka Amulya: Arka Safeda x Seedless
• Hissar Surekha
• Shweta: High TSS (140° Brix)

Hybrid

• Kohir Safed: Kohir X AS (Allahabad Safed)
• Safed Jam: AS X Kohli
• Hybrid-45: AS x L-49 (Sardar)

Disease

• Guava wilt
  • Fusariunt oxysporium p.v. Psidii
  • Wilting appearance of plants and leaves of young plants is dries up.
  • Wilt is serious problem in guava (common in Alkali soil)
• Management
  • Soil drench with Carbendazim/Bavistin @ 2g/liter water.
  • Grow resistant varieties i.e. Allahabad Safeda.

Insect pest

• Striped mealy bug: Ferrisa virgata, serious pest in South India

  

• Guava tea mosquito bug: Helopeltis antonh

  

Physiological disorder

• Bronzing: Due to Zn deficiency

  

Aonla

• Emblica officinalis (Euphorbiaceae)
• It is also known as Indian gooseberry is an indigenous fruit.
• Propagation by patch budding in North India.
• Aonla fruits is contains vitamin C 600 mg/100g.
• Large sized, sound fruits are mostly utilized for preservation and candy
• Bearing life of anona is 65 to 70 years.

Varieties

Disease

• Ring rust: Ravenelia emblica, it is serious disease in aonla.

  

• Fruit necrosis: B-deficiency. Francis variety highly suffered

Insect

• Bark eating caterpillar: Indarbella quadrinotata

Guava

• Botanical Name: Psidium guajava
• Family: Myrtaceae
• Origin: Peru
• Also known as apple of poor or poor man’s apple.
• Guava improvement work was started in 1907 at Pune.

Guava-Bahar season

• Fruit bearing takes place 3 times in South India.
• Two type of fruits, completely seedless and partly seeded are borne on the plant of seedless variety.
• Guava harvested throughout year except May and June.
• Chinese guava — P. fridrichsthalianum — dwarfing rootstock and resistant to guava wilt and nematodes.
• High density planting reduces TSS, sugars and ascorbic acid but increases titrable acidity.
• L-49 is more susceptible to Bronzing than Allahabad safeda.
• Fruit quality of winter crop is best, it escapes the attack of fruit flies.
• Practice of taking winter crop instead of rainy season crop is known …

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