UPSC MainsAGRICULTURE-PAPER-II201510 Marks150 Words
Q2.

Write the package and practices of Gladiolus cultivars citing method of propagation, soil, climatic conditions, harvesting and yield.

How to Approach

This question requires a structured response detailing Gladiolus cultivation. I will begin by introducing Gladiolus and its significance. Then, I'll systematically cover propagation methods, ideal soil and climatic conditions, harvesting techniques, and expected yield. A tabular format will be employed to present key aspects concisely. Finally, I will briefly discuss recent advancements and challenges in Gladiolus cultivation in India. The answer will adhere to the 150-word limit while maintaining clarity and completeness.

Model Answer

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Introduction

Gladiolus, a genus of perennial flowering plants, is gaining prominence in India due to its ornamental value and export potential. Often referred to as "sword lilies," these strikingly beautiful flowers are widely cultivated for cut flowers, bouquets, and landscaping. India is a significant producer and exporter of gladiolus, with states like Karnataka, Tamil Nadu, and Maharashtra leading the way. The increasing demand for gladiolus necessitates efficient cultivation practices and an understanding of its specific requirements. This response outlines the key aspects of Gladiolus cultivation.

Gladiolus Cultivation Package and Practices

1. Propagation

Gladiolus is primarily propagated through corms. Cormels (small corms) can also be used, but they take longer to mature.

  • Corm Propagation: The most common method. Corms are planted in late monsoon/early winter.
  • Cormel Propagation: Cormels require 2-3 years to develop into mature corms suitable for planting.

2. Soil and Climatic Conditions

Gladiolus thrives in well-drained, loamy soil rich in organic matter. The ideal pH range is 6.0-7.5.

  • Soil: Loamy, well-drained, rich in organic matter.
  • Climate: Warm and sunny climate with moderate temperatures (15-27°C). Requires 12-14 hours of sunlight daily.

3. Harvesting and Yield

Harvesting typically begins 60-90 days after planting, depending on the cultivar.

  • Harvesting: Harvest flower spikes when the lower 1-3 flowers are open.
  • Yield: A well-managed crop can yield 8-12 spikes per corm in the first year, decreasing in subsequent years. Corms are harvested after the foliage yellows and dries.

Table: Gladiolus Cultivation Summary

Aspect Details
Propagation Corms (primary), Cormels (secondary)
Soil Loamy, well-drained, pH 6.0-7.5
Climate Warm, sunny (15-27°C, 12-14 hrs sunlight)
Harvesting 60-90 days post-planting, when lower flowers open
Yield 8-12 spikes/corm (first year)

Recent advancements include the use of tissue culture for mass propagation and the development of disease-resistant cultivars. Challenges include nematode infestations and fungal diseases like basal rot.

Conclusion

Gladiolus cultivation offers significant potential for farmers, particularly in regions with favorable climates. Understanding the propagation techniques, soil and climatic requirements, and optimal harvesting practices is crucial for maximizing yield and quality. Continued research and adoption of innovative technologies will further enhance the productivity and profitability of gladiolus farming in India, strengthening its position in the global cut flower market.

Answer Length

This is a comprehensive model answer for learning purposes and may exceed the word limit. In the exam, always adhere to the prescribed word count.

Additional Resources

Key Definitions

Corm
A corm is a swollen, stem-like structure that serves as a storage organ for gladiolus plants, analogous to a bulb but structurally different.
Cormel
Small, immature corms that develop from the base of a mature gladiolus corm. They are less developed and take longer to reach maturity for planting.

Key Statistics

India’s Gladiolus export value reached approximately $20 million in 2022-23 (estimated, based on trade data).

Source: Ministry of Commerce & Industry Data (knowledge cutoff)

The average yield of gladiolus spikes in Karnataka, a major producing state, is around 10-12 spikes per corm under optimal conditions.

Source: Department of Agriculture, Karnataka (knowledge cutoff)

Examples

Disease Resistance Example

The ‘Pusa Sweet’ gladiolus cultivar is known for its resistance to certain fungal diseases, reducing the need for chemical interventions.

Tissue Culture Application

The National Botanical Research Institute (NBRI), Lucknow, has developed techniques for gladiolus propagation through tissue culture, significantly increasing the production of disease-free planting material.

Frequently Asked Questions

What is the best time to plant Gladiolus corms in India?

The ideal planting time is late monsoon/early winter (July-August) to allow sufficient time for root development before the hot summer months.

How often should Gladiolus plants be watered?

Gladiolus plants require regular watering, especially during the growing season. The soil should be kept consistently moist but not waterlogged.

Topics Covered

AgricultureHorticultureBotanyFlower CultivationGladiolusAgronomy