Plant Propagation Techniques

Used coffee grounds are widely used in gardening and agriculture as a fertilizer and soil amendment. Coffee grounds are rich in nitrogen, potassium, phosphorus, and other minerals that plants need. They help improve soil structure, drainage, and water retention while providing essential nutrients for plant growth.

Coffee grounds and coffee byproducts are indeed used in gardening and plant growth. They contain nitrogen, potassium, and other nutrients that can benefit soil. Coffee grounds can help improve soil structure and provide acidity for certain plants like blueberries and roses.

The statement correctly defines hydroponics. Hydroponics is indeed a soilless cultivation method where plants grow in nutrient-rich water solutions. The technique allows plants to absorb essential minerals and nutrients directly from water, with their roots supported by inert growing media or suspended in the solution itself. This method is widely used in modern agriculture for efficient food production.

Horticulture is the science and art of growing fruits, vegetables, flowers, and ornamental plants. It focuses on garden cultivation and plant propagation. Agriculture is broader (crops+livestock), Pisciculture is fish farming, and Botany is plant science overall.

Sugarcane is commonly propagated through stem cuttings called 'setts' - segments of the stalk with nodes that can grow new plants. Cotton and jute are grown from seeds, while banana is propagated through suckers or tissue culture.

It is defined as the process of combining together the parts of 2 different plants of closely related species in such a way that they live as one plant. The prime examples are Rubber, Apple, Pear, etc.

The process of growing plants in sand, gravel, or liquid, with added nutrients but without soil..

This is the correct option. Gladiolus can be multiplied by using the method of vegetative propagation by stem.

This is the correct option. Jasmine can be grown by the method of layering.

This is the correct option. In cutting method of vegetative propagation, short lengths of plant stem or roots are used for growing new plants. In grafting method of vegetative propagation, a desired plant is obtained from two different individuals called stock and scion. In layering method of vegetative propagation, a branch of the plant is buried under the soil and the growing tip is kept above the soil surface.

Suspension culture consists of single cells and small groups of cells. 

Plants developed through suspension cultures generally exhibit genetic variations.

High concentration of 2,4- D is used to induce regeneration of somatic embryos.

Hybridization is the process of crossing two genetically different individuals to produce new varieties with desired traits. Pollination is the transfer of pollen, fertilization is fusion of gametes, and germination is seed sprouting - none of these are the crossing process itself.

Veneer grafting is the most successful and widely used propagation method for mango. It gives high success rates (80-90%) when done during the active growth period. For lime and guava, other methods like patch budding or air layering are preferred.