Cauliflower Question & Answer
Crop:- Cauliflower
| Question | Answer | |
| 1 | Botanical Name? | Brassica oleracea var. botrytis |
| 2 | Family? | Cruciferae |
| 3 | Origin? | Mediterranean region |
| 4 | Chromosome number? | 2n=18 |
| 5 | pH of soil? | 5.5 to 6.5 |
| 6 | Fruit of cauliflower is known as? | Curd |
| 7 | The characteristic flavor of Cole crops is due to presence of? |
Di methyl tri sulphate |
| 8 | Cauliflower is? | Thermo-sensitive crop |
| 9 | Inflorescence? | Cymose |
| 10 | India rank in Cauliflower production in the world? | 2nd |
| 11 | It was introduced in India in 1822 by? | Dr. Jenson from London |
| 12 | Cauliflower is only crop in group of Cole crops in which the intermediate stage of ——-lies between vegetative and reproductive stage? | Curding |
| 13 | How many irrigation requires during growth? | 5-8 |
| 14 | Three season varieties are available in? | Cauliflower |
| 15 | Most of late type have? | Self blanched habit |
| Variety Type | Early | Mid and late |
| Sowing time | Mid May-Mid June | July-Aug |
| Maturing time | Sept-Oct | Nov-Dec |
| Seed rate | 500-600 g/ha | 350-400 g/ha |
| Yield | 12-15 t/ha | 20-30 t/ha |
| Varieties | Growth Temperature |
| Early | 20-27 °C |
| Mid early | 12-16 °C |
| Mid late | 12-16 °C |
| Late | 10-12 °C |
| Physiological disorder | ||
| Disorder | Characters | Cause |
| Blindness | Plants having no terminal buds and fail to form any curd. | Damage in early stage by Insects, low temp. & Frost |
| Buttoning | Development of small curds in young plants | Nitrogen deficiency |
| Hollow stem | Excessive growing pants of cauliflower develops hollow stem and curd. | Excessive use of fertilizers especially ‘Nitrogen’ |
| Whip tail | Only midrib of leaf blade is develops so the name “whiptail” is given | Mo deficiency in acidic soils |
| Chlorosis | Interveinal yellow molting of lower leaves Mg deficiency | Mg deficiency |
| Riceyness | The surface of curd is loose and has velvet appearance due to formation of small white Heavy flower buds at the curding stage. | Fluctuation of temp, heavy application of N & high humidity |
| Browning | Light brown to dark spots on stem, brown colour of curd. | Boron deficiency, |
| Question | Answer | |
| 16 | Which is a method to protect curd from attaining yellow colour after their direct exposure to sun and to arrest enzymatic activity? | Blanching |
| 17 | Removal of central portion of curd for earlier initiation of flower stalk in cauliflower is known as? | Scooping |
| 18 | Prefloral fleshy apical meristem and composed of flower stock which produces abortive flowers is known as? | Head/curd |
| 19 | Sowing the seeds in raised beds and transplant —–after days (early varieties)? | 25 days |
| 20 | How many day old seedlings are transplant (late varieties)? | 45 days |
| 21 | Closer spacing is cause? | small curds |
| 22 | Spacing? | 45×45 cm OR 45×60 cm |
| 23 | Fertilizers requires kg NPK /ha? | 100:50:50 |
| 24 | Application of Borax kg/ha? | 10-15 |
| 25 | Which varieties have self-blanched habit? | Pusa himjyoti and Pusa snowball |
| 26 | Early variety
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| 27 | Late variety
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| 28 | Synthetic variety
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| 29 | Private Sector Hybrid
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| 30 | Pusa Snowball K-2S is resistant to which disease? | Sclerotia rot |
| 31 | Blackrot, Curd and inflorescence blight resistant varieties? | Pusa Snowball K-1, Pusa Shubhra |
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