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Class 11 Floriculturist Chapter 2 Nursery Management
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Nursery Management
Chapter: 2
| SESSION 1: NURSERY AND ITS IMPORTANCE |
| CHECK YOUR PROGRESS |
A. Fill in the Blanks:
1. A place where seedlings or planting material is raised under controlled conditions is known as_______________.
Ans: Nursery.
2. A type of nursery established for an ongoing project of landscaping is_____________.
Ans: Temporary nursery.
3. Temporary nursery is also known as ________________ nursery.
Ans: Seasonal.
4. Permanent nursery may also be called a ______________ nursery.
Ans: Commercial.
5. Commercial nursery supplies ____________ continuously, whenever required.
Ans: Planting material.
B. Multiple Choice Questions:
1. Nursery raising _____________overall period of the crop in the main field.
(a) Reduces.
(b) Optimises.
(c) Maximises.
(d) None of the above.
Ans: (a) Reduces.
2. Temporary nursery is _______________.
(a) For seasonal planting.
(b) Nursery on site.
(c) For planting in forest and hilly regions.
(d) All of the above.
Ans: (d) All of the above.
3. Nursery established under protected structure is known as _____________.
(a) Hi-tech nursery.
(b) Technical nursery.
(c) Low-cost nursery.
(d) All of the above.
Ans: (d) All of the above.
4. Cytokinins are hormones that help in _______________.
(a) Cell division.
(b) Ripening.
(c) Cell elongation.
(d) Cell enlargement.
Answer: (a) Cell division.
5. Complex organic compounds applied in minute quantity to promote or inhibit the growth of the plant are __________________.
(a) PGRs.
(b) Micro-elements.
(c) Organic fertiliser.
(d) Macro-elements.
Answer: (a) PGRs.
C. Subjective Questions:
1. Do you think nurseries are important?
Ans: Importance of Nursery:
(i) Wastage of small and expensive hybrid seeds is reduced considerably due to better care and management.
(ii) Germination percentage can be improved by providing ideal conditions in a comparatively smaller place.
(iii) The management of seedlings can be done in a better way with minimum care, cost, and maintenance as the nursery area is small. Flowers with very small growth are difficult to grow without first raising the nursery.
(iv) By selecting vigorous and healthy seedlings in the nursery for transplanting, better and uniform crop growth can be obtained in the main field through better survival chances.
(v) The duration of the crop is reduced in the main field by at least a month due to the raising of seedlings, which saves land and labor of the main field and also gives enough time for harvesting the previous crop.
(vi) The control of insect pests, diseases, and weeds is easy in a nursery.
(vii) Nurseries offer great opportunities for employment to semi-skilled, skilled, and unskilled human resources.
2. What are the different kinds of nurseries? Describe the benefits of one of them.
Ans: Nurseries are classified on the basis of duration, plant produce and structure used.
They types of nurseries are:
(i) Temporary nursery.
(ii) Permanent nursery.
(iii) Ornamental nursery.
(iv) Vegetable nursery.
(v) Fruit plant nursery.
(vi) Forest nursery.
The benefits of one of them are:
(i) Temporary nursery: This type of nursery is established for an ongoing project of landscaping, forest, hilly regions or in a natural garden in a particular season. It may also be called ‘nursery on site’.As the name indicates, it exists for a short period or up to the completion of the targeted project. The temporary nursery fulfils the seasonal requirement of landscaping. Seedlings produced in a temporary nursery are according to target and utilised fully, and not for any type of sale. Seedlings are raised only for a season and as soon as the seedlings are transplanted, the role of nursery is over. Therefore, it is also called ‘seasonal nursery’. There are several advantages with some underlying disadvantages of a temporary nursery. Initial investment in such a nursery is very low. It eliminates transportation, so first of all, the cost of transportation is reduced; secondly, transitional shock to the seedlings is negligible. Creation of extra infrastructure is not required. The prepared plants are according to the task and utilised completely. Wastage of seedlings due to mortality is minimum.
3. Why are Plant Growth Regulators used?
Ans: Plant Growth Regulators (PGRs) are complex organic compounds, other than nutrients, which are applied in minute quantities to promote or inhibit growth. The use of plant growth regulators is being enhanced to manipulate flowering, growth, and yield of flowering plants. PGRs help in controlling and influencing various growth processes in plants, such as cell division, elongation, flowering, fruit development, and overall plant health.
They are applied in very low concentrations, i.e., in parts per million (ppm), and can be used in powder, paste, or spray form. They are essential for improving plant development and managing specific growth traits, such as early flowering or better root growth.
D. Match the Columns:
| A | B |
|---|---|
| 1. Auxins | (a) Ethephon. |
| 2. Cytokinins | (b) GA3. |
| 3. Gibberellins | (c) Kinetin. |
| 4. Ethylene | (d) NAA. |
Ans:
| A | B |
| 1. Auxins | (d) NAA. |
| 2. Cytokinins | (c) Kinetin. |
| 3. Gibberellins | (b) GA3. |
| 4. Ethylene | (a) Ethephon. |
| SESSION 2: GROWING MEDIA AND NURSERY BED PREPARATION |
| CHECK YOUR PROGRESS |
| SESSION 3: SEED SOWING AND PLANTING MATERIAL |
| CHECK YOUR PROGRESS |
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