1. Chrysanthemum belongs to which family?
(a) Rosaceae
(b) Fabaceae
(c) Asteraceae
(d) Malvaceae
✅ Answer: (c) Asteraceae
2. Chrysanthemum is popularly known as —
(a) Queen of Flowers
(b) Queen of East
(c) King of Flowers
(d) Winter Flower
✅ Answer: (b) Queen of East
3. Chrysanthemum is mainly grown as —
(a) Fruit crop
(b) Vegetable crop
(c) Ornamental flower crop
(d) Medicinal crop
✅ Answer: (c) Ornamental flower crop
4. Chrysanthemum is a —
(a) Long-day plant
(b) Day-neutral plant
(c) Short-day plant
(d) Aquatic plant
✅ Answer: (c) Short-day plant
5. Optimum daytime temperature for chrysanthemum flowering is —
(a) 10–15°C
(b) 20–28°C
(c) 30–35°C
(d) 35–40°C
✅ Answer: (b) 20–28°C
6. Suitable soil pH for chrysanthemum cultivation is —
(a) 4.5
(b) 5.0
(c) 6.5
(d) 8.5
✅ Answer: (c) 6.5
7. Chrysanthemum is commonly propagated through —
(a) Tubers
(b) Rhizomes
(c) Cuttings and suckers
(d) Bulbs
✅ Answer: (c) Cuttings and suckers
8. Length of terminal cuttings used for propagation is —
(a) 1–2 cm
(b) 3–4 cm
(c) 5–8 cm
(d) 10–12 cm
✅ Answer: (c) 5–8 cm
9. Ideal planting time for chrysanthemum is —
(a) January–February
(b) March–April
(c) May–June
(d) November–December
✅ Answer: (c) May–June
10. Recommended spacing giving best economic yield is —
(a) 10 × 10 cm
(b) 15 × 15 cm
(c) 20 × 30 cm
(d) 60 × 60 cm
✅ Answer: (c) 20 × 30 cm
11. Chrysanthemum requires irrigation at ______ interval during winter.
(a) 1–2 days
(b) 3–4 days
(c) 7–10 days
(d) 15–20 days
✅ Answer: (c) 7–10 days
12. FYM stands for —
(a) Farm Yield Material
(b) Farmyard Manure
(c) Fertile Yard Mixture
(d) Field Yard Material
✅ Answer: (b) Farmyard Manure
13. Recommended fertiliser dose for chrysanthemum is —
(a) 20:20:20 kg NPK/ha
(b) 50:160:80 kg NPK/ha
(c) 100:100:100 kg NPK/ha
(d) 200:50:50 kg NPK/ha
✅ Answer: (b) 50:160:80 kg NPK/ha
14. Pinching in chrysanthemum is done to —
(a) Reduce flowering
(b) Increase branching
(c) Kill pests
(d) Reduce plant height only
✅ Answer: (b) Increase branching
15. Disbudding is mainly practised to obtain —
(a) Small flowers
(b) More roots
(c) Large flowers
(d) More seeds
✅ Answer: (c) Large flowers
16. Which of the following is an important pest of chrysanthemum?
(a) Aphids
(b) Whiteflies
(c) Thrips
(d) All of these
✅ Answer: (d) All of these
17. White rust disease in chrysanthemum is caused by —
(a) Bacteria
(b) Fungus
(c) Virus
(d) Nematode
✅ Answer: (b) Fungus
18. Root-knot nematodes mainly attack the —
(a) Flowers
(b) Stem
(c) Roots
(d) Leaves
✅ Answer: (c) Roots
19. Harvesting of chrysanthemum flowers is generally done —
(a) At noon
(b) In the evening only
(c) Early in the morning
(d) At midnight
✅ Answer: (c) Early in the morning
20. Average flower yield of chrysanthemum is about —
(a) 2–5 tonnes/ha
(b) 5–8 tonnes/ha
(c) 10–15 tonnes/ha
(d) 20–25 tonnes/ha
✅ Answer: (c) 10–15 tonnes/ha
A. Fill in the Blanks
Pinching in chrysanthemum is done by ----- of the growing tips of the plants at ----- stage.
Standard chrysanthemum is harvested when -------- but before --------------- begins to elongate.
Chrysanthemum is commonly known as ----------------
Chrysanthemum flowers, which have invisible disc, are ---------------
Chrysanthemum can be commercially propagated by -----and ------ cuttings.
B. Multiple Choice Questions
The critical day length required for flower initiation and flower development of chrysanthemum is —(a) 14–15 hours and 13–14 hours
(b) 11–12 hours and 12–13 hours
(c) 10–11 hours and 9–10 hours
(d) 16–17 hours and 15–16 hours
Chrysanthemum can be grown on the soil pH of about —
(a) 7.5
(b) 6.5
(c) 5.5
(d) 4.5
Terminal or tip cuttings of ____________________ for chrysanthemum should be taken from a healthy stalk. (a) 7–10 cm
(b) 10–15 cm
(c) 5–8 cm
(d) 15–20 cm
___________ are used to control the outside growth of heavy bloomers pots plants of chrysanthemum.
(a) 7–10 stakes
(b) 10–12 stakes
(c) 1–2 stakes
(d) 3–5 stakes
Removal of suckers from the base of chrysanthemum is known as ______________ .
(a) de-suckering
(b) pinching
(c) stopping
(d) disbudding and de-shooting
____________ is the removal of the growing tips of plants at 10–15 cm stage which results in the production of several lateral shoots.
(a) De-suckering
(b) Pinching or stopping
(c) Disbudding
(d) Topping
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