Guava

Introduction | Climatic Requirement | Soil Requirement | Varieties | Cropping System
Field Preparation and Sowing | Nutrient Management | Water and Irrigation | Weed Management
Disease Management | Harvesting | Post Harvesting | Miscellaneous
 
Miscellaneous:

Time of flowering and fruiting in guava:
Under natural conditions, guava tree produces flowers and fruits twice in a year in Northern India, but it is thrice i.e. almost throughout the year in Western and southern India which results in rest period and ultimately guava tree bears small crops at different times of the year, this pattern of flowering and fruiting is not desirable for commercial cultivation. The well defined periods are:

Sl. No. Type of Flowering Time of flowering Time of Harvesting Quality of fruits
1 Ambe bahar February-March (spring season) July-September (rainy season) Insipid, watery, taste and keeping quality poor.
2 Mrig bahar June-July (monsoon season) November-January (winter season) Excellent*
3 Hasth bahar** October February-April Good but yield is poor, fetches good price.

*The guava trees are made to produce the Mrig bahar flowers only.
**This type is not common. It is easy to induce. It is mostly a chance crop. It is observed in Western and Southern India.

Regulation of flowering and fruiting in Guava for Mrig bahar:
Throughout India, Mrig bahar is preferred over Ambe bahar and Hasth bahar. Therefore, it becomes necessary to regulate flowering so that Mrig bahar can produce heavy flowering and fruits are available in winter. The following practices are adopted for this purpose:

a) To restrict irrigation water:
The guava tree should not be given irrigation from February to middle of May. Thus the tree sheds its leaves during hot season (April- May) and goes to rest. During rest period, tree can conserve food material in its branches. In the month of June tree is well cultivated and manured followed by irrigation. After about 25-25 days the tree would blaze into profuse blossoms. The fruits mature during winter.

b) To expose roots:
Upper soil around the trunk (45-60 cm radius) is removed with care to expose the roots to the sun. That will result in reduction in supply of soil moisture from soil to the top and the leaves begin to shed and the trees go to rest. After 3-4 weeks, the exposed roots are again covered with sol. Manuring and watering is done.

c) To do deblossoming:
it can be done with the use of growth regulators like, Naphthalene Acetamide (NAD) @ 50 ppm (parts per million) is found to be effective. It can also be done manually on small scale.
When flowers of Ambe bahar are deblossomed, the tree becomes more potential to produce more flowers and fruits in Mrig bahar.

d) Bending:
Trees having erect shoots and bearing habit is very poor, in such trees shoots may be bent and tied on the pegs driven on the ground. Thus dormant buds become activated which in turn bear flowers and fruits.

Main flowering periods in different part of India:

East India a)April-May
b) September-October
West India a)February-March
b) June-July
c) October-November
North India a)April-May
b) August-September
South India a)April-May
b) August-September
c) October-November

Promising Guava Hybrids

Hybrid Parentage Characteristics
Hybrid 1 Allahabad Safeda x Seedless Heavy yielder with soft seeds
Hybrid 45 Allahabad Safeda x Sardar Seeds soft, white flesh and good fruit size
Hybrid 53 Allahabad Safeda x Sardar Seeds soft, white flesh and good fruit size
Hybrid 58 Allahabad Safeda x Sardar Seeds soft, white flesh and good fruit size
Hybrid 84 Allahabad Safeda x Sardar Seeds soft, white flesh and good fruit size
Hybrid 105 Allahabad Safeda x Sardar Seeds soft, white flesh and good fruit size
Hybrid 161 Apple Colour x Allahabad Safeda Red skin colour, excellent quality and soft seeds

*Rathore (1998)


Introduction | Climatic Requirement | Soil Requirement | Varieties | Cropping System
Field Preparation and Sowing | Nutrient Management | Water and Irrigation | Weed Management
Disease Management | Harvesting | Post Harvesting | Miscellaneous