Date palm questions and answers
Horticulture
DATE PALM
| Question | Answer | |
| 1 | Botanical name? | Phoenix dactylifera |
| 2 | Family? | Arecaceae or Palmaceae |
| 3 | Common name? | Tree of life or head in fire and foot in water plant |
| 4 | Origin? | West Asia |
| 5 | Date contains carbohydrates in form of invert sugars? | 75-80% |
| 6 | Seed type? | Single seeded berry |
| 7 | In India-Date is harvested at? | Doka stage |
| 8 | Date harvested at doka stage have? | 70-80% moisture |
| 9 | In other countries date is harvested at? | Dang stage |
| 10 | Metaxenia is common in? | Date palm |
| 11 | Fruits for fresh eating are preferred at? | Dang stage |
| 12 | Drink of Date palm is known as? | Dibbis |
| 13 | Liquor prepared from date palm is ‘Arrack’, popular in? | Iraq |
| 14 | One kg fully ripe fresh dates provide approximately? | 3150 calories |
| 15 | Male should be raised in orchard to provide adequate pollen grains? | 10% |
| 16 | Time of leaf pruning? | June |
| 17 | Effective fruit thinning agent? | Ethephon |
| 18 | Doka fruits are successfully processed to prepare? | Chhuhara |
| 19 | Metaxenia-to induce earlyness improvement in quality? | Exploitation |
| 20 | Khadrawy and medjool developed by? | Somatic embryogenesis |
| 21 | Trailer mounted palm duster is used for? | Pollination |
| 22 | A fine date variety requires of heat for full maturity? | 3300 units |
| 23 | Date juice suitable varieties? | Zagloul, Hayani |
“Success isn’t measured by money or power or social rank. Success is measured by your discipline and inner peace.”
| Varieties | |||
| Chuhharah making- Khadrawy, medjool, sharan. | |||
| Fresh eating- Halawy, Barhee, Khalas, Sevi, Khunezi. | |||
| Sharan- Uneven ripening. | |||
| Zaghloul dates– Egypt (Disease resistant). | |||
| Zahidi-Pink khajur (soft date). | |||
| Type | |||
| Bread type dry date- Thoory. | |||
| Cane sugar date (semi dry date)-Dayari, Deglet Noor, Zahidi. | |||
| Invert sugar date (soft date)- Halawy, Khadrawy, Barhee, Medjool. |
Success is dependent on effort.
| Dates go through 4 stages of development |
| Chimri, or Kimri Stage-The first 17 weeks after pollination: green, hard, bitter, 80% moisture, 50% sugars (glucose and fructose) by dry weight. |
| Doka/Khalal stage- The next 6 weeks: become full grown, still hard; color changes to yellow, orange or red, sugars increase, become largely sucrose. (In India-Date is harvested) |
| Dang/Rutab stage- The next 4 weeks: half-ripe; soften, turn light brown; some sucrose reverts to reducing sugar which gains prominence. |
| Pind/ Tamar stage- Ripe the last 2 weeks; in soft dates, the sugar becomes mostly reducing sugar, semi-dry and dry dates will have nearly 50% each of sucrose and reducing sugars. |
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