Title 5. CULTIVATION, COLLECTION, PROCESSING AND STORAGE OF CRUDE DRUGS.pdf ✅

PHARMD GURU Page 1 CULTIVATION OF CRUDE DRUGS: It is a scientific approach to healthy growth of medicinal plant in large scale. The growth is defined as progressive development of the organs with respect to various factors. Some of the advantages of cultivations are: 1. Cultivation ensures quality and purity of medicinal plants. 2. It gives better healthy yield and therapeutic effects. 3. It minimizes biodiversity. 4. It supplies the raw materials to the industries throughout the year. 5. It provides disease free plants. 6. It increases industrialization and helps in unemployment problem. GENERAL STEPS FOR CULTIVATION OF PLANTS: CULTIVATION, COLLECTION, PROCESSING AND STORAGE OF CRUDE DRUGS
PHARMD GURU Page 2 Methods of cultivation: Generally two types of cultivation are possible. (A) SEXUAL METHOD: In this method plants are cultivated from the seeds and such plants are called seedlings. This method is also known as seed propagation. Generally good quality seeds of high germination rate should be used for cultivation. Seeds should be free from other seeds and impurities. Examples: Mango, Lichi, Methi, Coriander, papaya, tomato. ADVANTAGES:  It is an easy method to cultivate plants.  It gives high yields.  It gives more number of varieties.  It is applicable for both monocot and dicot plants. DISADVANTAGES:  Sometimes it takes more time to grow.  Hybrid plant may not get.  Healthy plants may not get from the same field.  Asymmetric growth of the plants may occur. (B) ASEXUAL METHOD: Vegetative part of plant, such as steam or root, is placed in such an environment that develops new plant. Examples: Jasmine, sugarcane, potato, banana, rose. ADVANTAGES:  It gives high yield.  It develops hybrid plants.  It gives fruits and flowers throughout the year.  Quality of cultivated plant can improve.  This method is more useful for monocot plants.

PHARMD GURU Page 4 Again soil factors are further divided into: COLLECTION OF CRUDE DRUGS: The collection of medicinal plants from wild populations can give rise to additional concerns related to global, regional and/or local over-harvesting and protection of endangered species. After cultivation of the plants it is essential to collect the plant parts for the next step of harvesting. Crude drugs are collected from wild or cultivated plants and hence proper selection of the plant parts and their proper collection give the improved quality of the plants. It even helps to increase the content of secondary metabolites in the plant parts. Hence drugs should be collected when they contain maximum amount of constituents in a highly scientific manner. Plant collections are important for: