🍒 Ber

Important points, varities, pests

Botanical Name: Ziziphus mauritiana (Indian Ber) -- Evergreen, Spreading habit
Chinese Ber: Ziziphus jujuba -- Deciduous, Upright, Highly resistant to frost
Family: Rhamnaceae
Origin: China
Also known as King of desert/Arid fruits. Ber earns this title due to its exceptional ability to thrive in hot, arid conditions where most other fruit crops cannot survive, making it the most important fruit crop of dryland horticulture in India.
Z. jujuba can be used even for biological reclamation of saline soils.
Can tolerate high temperature of even 40°C.
Can be grown in extreme moisture stress.
Ideal tree for arid and semi-arid climate.
Can be grown in alkaline soils with pH even up to 9.5 and sodic soil.
Non-climacteric fruit.
Lac insect rearing helps in the production of lac on ber plant. The tree is a host plant for rearing lac insect (Tachardia Laccad).
Tolerates salinity even to an extent of 21 m.mhos per cm.
Seed dormancy due to hard endocarp.
Overcoming seed dormancy: Breaking endocarp or soaking seeds at GA₃ 500 PPM for 24 hours.
Major pest: Fruit fly (Carpomiya vesuviana) -- infests at pea stage.
Major disease: Powdery mildew.
Type of training system: Modified leader system.

Ber crop is heavily/drastically pruned. Severe pruning is essential in ber because it bears fruit on the current season's growth -- drastic pruning stimulates vigorous new shoot production, leading to better flowering and higher yields.
Best time for pruning: April - May (in Rajasthan). Pruning is done during the hot summer months when the plant is in its dormant phase, before the onset of monsoon triggers new growth.
Pruning time for north Indian condition: Mid to End of May.
Ber requires heavy pruning every year.
Flowers bore at current season growth.
Training - Ideal time is March.
Ber is extremely drought hardy. Its deep tap root system, small leaf size, and ability to shed leaves during extreme drought make ber one of the most water-efficient fruit crops.

Spraying of 3% thio-urea or KNO₃ once in 2 days before pruning induces bud sprouting from maximum no. of nodes. Thio-urea acts as a dormancy-breaking agent that stimulates uniform bud break, resulting in synchronized flowering and fruiting.
Irrigation during October causes flower shedding and that during March-April causes fruit spoilage and delays ripening. This highlights the importance of critical irrigation scheduling in ber -- water must be withheld during flowering (October) and fruit maturation (March-April) to avoid physiological damage.
Ber also shows strong self-incompatibility (Gametophytic). Gametophytic self-incompatibility means the pollen tube growth is inhibited in the style when pollen from the same variety is used. Therefore, interplanting of compatible varieties is essential for good fruit set.

Ziziphus nummularia -- dwarfing rootstock for high density planting. This wild relative of ber restricts the scion's growth, producing compact trees that can be planted at closer spacing, increasing the number of trees per hectare.

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Concept / Topic	Key Details / Explanation
Ber identity	Ziziphus mauritiana is Indian ber and Ziziphus jujuba is Chinese ber; the crop belongs to Rhamnaceae, is called king of arid fruits, and is highly suited to hot dry climates.
Stress tolerance and biology	Ber tolerates high temperature, drought, alkalinity, sodicity, and salinity, is a non-climacteric fruit, and even supports lac insect rearing; seed dormancy is due to the hard endocarp and can be broken mechanically or with GA3 500 ppm.
Major pest and disease	Fruit fly is the major pest at pea stage, powdery mildew is the main disease, and modified leader is the training system mentioned in the lesson.
Pruning and flowering behavior	Ber bears on current season growth, so it needs heavy annual pruning, usually around April to May in Rajasthan or mid to late May in North India; training time is March.
Orchard management	Sprays of 3% thiourea or KNO3 before pruning improve bud sprouting, irrigation at the wrong time can cause flower shedding or fruit spoilage, and the crop shows gametophytic self-incompatibility.
Rootstock, propagation, and crop timing	Ziziphus nummularia is the dwarfing rootstock, I or T budding is the main propagation method, beginning of monsoon is best for planting, and pre-harvest 750 ppm ethephon helps early maturity.

Concept / Topic	Key Details / Explanation
Maturity, harvest, and storage	Ber matures about 150-175 days after flowering, harvest timing differs by region, and storage conditions listed are 3°C with 85-90% RH in one note and 30°C with 85-90% RH for 30-40 days in the harvesting section.
Key varieties	Important varieties include Sanaur-2, Dodhia, Elaichi, Gola, Kaithili, Umran, Seo, Seb, Banarasi, Chhuhara, Sandhura Narnaul, Goma Kirti, Rashmi, Mundia, Jogia, Meharun, Katha, and Pathani.
Variety groupings	Early dry-area types include Gola, Seb, and Kaithali; mid-maturity types include Rashmi, Mundia, Banarasi, Jogia, and Meharun; late types include Umran, Illaichi, Katha, and Pathani.
Special variety notes	Gola is early and salinity tolerant, Dodhia is fruit-fly resistant, Sanaur-2 is powdery-mildew resistant, Seb is a good pollinizer, Umran is the important late dry-area type used for chhuhara, and Illaichi shows high pollen sterility.
Spacing, yield, and medicinal use	Spacing varies from 5 x 5 m in HDP to 8 x 8 m in high-rainfall areas, a 10-20 year old tree may yield 100-200 kg/year, and roots plus bark are noted for medicinal value.
Disease and pest management focus	Powdery mildew is caused by Oidium jujube var. indica, while fruit fly Carpomyia vesuviana damages fruits and is managed with fruit bagging plus methyl eugenol traps.

Varieties