Session 3: Cultivation of Marigold
Unit 2: Cultivation of Commercial FlowerCrops-II
Textual Question-Answers
Check Your Progress
A. Fill in the Blanks
1. Botanical name of French marigold is ………………
Ans: Tagetes patula
2. Marigold belongs to family ………………
Ans: Asteraceae
3. Planting marigold in the field reduces the population of……………… in the soil.
Ans: nematodes
4. Marigold can be vegetatively propagated through ……………
Ans: cuttings
5. Commercially marigold is propagated through ……………
Ans: seeds
6. About ……………… kg seeds of marigold are required forplanting one hectare of area.
Ans: 0.7–1.0
B. Multiple Choice Questions
1. Among the following, who is associated with Marigold breedingin India?
(a) B. Singh
(b) R.L. Misra
(c) M.L. Choudhary
(d) S.P.S. Raghava
Ans: (d)
2. Nugget is a cultivar of ………………(a) Marigold
(b) Rose
(c) Tulip
(d) Carnation
Ans: (a)
3. Native place of Marigold is ………………
(a) Russia
(b) South Africa
(c) Mexico
(d) India
Ans: (c)
4. Recommended seed rate of marigold is ………………(a) 0.7–1.0 kg/ha
(b) 2–3 kg/ha
(c) 3–5 kg/ha
(d) 7–8 kg/ha
Ans: (a)
5. Optimum temperature required for Marigold cultivation is………………
(a) 6–14°C
(b) 15–28°C
(c) 30–42°C
(d) All of these
Ans: (b)
6. Among the following, which one is the African marigold variety?(a) Orange flame
(b) Melody
(c) Bolero
(d) Golden climax
Ans: (d)
C. Subjective Questions
1. Differentiate between African marigold and French marigold.
Ans: African marigold plants are tall with large flowers, whereas Frenchmarigold plants are dwarf with smaller flowers. African marigold is mainlyused for loose flowers, while French marigold is suitable for bedding andedging.
2. How useful is pinching in marigold?
Ans: Pinching promotes lateral branching, increases the number of flowers, and improves uniform flowering in marigold.
3. Describe the harvesting of marigold.
Ans: Flowers are harvested when they are fully open. Harvesting is donein the morning or evening by hand picking at regular intervals.
4. Write about the bronze speckling of marigold.
Ans: Bronze speckling is a physiological disorder caused by thripsinfestation, resulting in brown or bronze spots on petals and reduced flowerquality.
5. Give the symptoms and causes of leaf burn in marigold.
Ans: Leaf burn appears as scorching and drying of leaf margins. It is causedby excess salts, high temperature, or moisture stress.
D. Match the Columns
Ans:
1. Planting stage — (b) 4 leaf stage
2. French marigold — (a) Tagetes patula
3. Pusa Basanati gainda — (d) African marigold
4. Powdery mildew — (c) Wettable sulphur
