Plant Growth and Development Archives

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Senescence: Definition, Types Theories, Characteristics & Importance

Here We Will Discuss Senescence Definition, Types of Senescence, Theories of Senescence, Characteristics And Importance of Senescence. Senescence is the latter part of the Development of Flower, fruits and seeds in Plants which leads from maturity to the ultimate complete loss of organization and function. There is a confusion between ageing and senescence which should …

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Vernalization: Site, Requirement, Process and Importance of Vernalizaion

Vernalization: Site, Requirement, Process and Importance of Vernalization

Verbalization is the Method of inducing early flowering in plants by pretreatment of their seeds at low temperatures. The term “Verbalization” is coined by very famous Russian agronomist Lysenko. Verbalization requires proper aerobic respiration for stimulation. The stimulus of verbalization has been named as “Vernally”. The term Vernally is coined by Melchers in 1938. Verbalization …

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Ethylene: Overview, Discovery, Plant Hormones, Bioassay & Functions

Botany, Plant Growth and Development / September 11, 2019

Here we are going to discuss “Ethylene: Overview, Discovery, Types of Ethylene, Bioassay & Functions” There are 5 plant Hormones, Ethylenes is one of them. Ethylene is an only plant hormone which is found in gaseous form. Ethylene stimulates transverse growth in plants. Ethylene retards the longitudinal growth of plants. Ethylene hormone is well known …

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Auxins: Overview, Discovery, Types of auxins, Bioassay, Auxin Functions

Botany, Plant Growth and Development / September 10, 2019

Here we are going to discuss “Auxins: Overview, Discovery, Types of auxins, Bioassay, Auxin Functions” Among the growth hormones Auxin was the first to be discovered. Auxins are weakly acidic plant growth hormones capable of promoting cell elongation in shoots. Auxin (GK. auxeine = to grow). Have an unsaturated ring structure. Auxins help in the …

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Gibberellins: Overview, Discovery, Types, Bioassay and Functions

Botany, Plant Growth and Development / September 8, 2019

Gibberellins are weakly acidic hormones which cause elongation of intact plant. Gibberellins increase the length of genetically dwarfed plants. Gibberellins Have Gibbane ring in its structure. Discovery of Gibberellins Kurosawa first isolated gibberellins from the fungus named Gibberella fujikuroi (Fusarium moniliforme) in 1926. Gibberella fujikuroi is the causal organism of Bakanae disease. Yabuta, Sumiki and …

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Cytokinins: Overview, Discovery, Types, Bioassay and Functions

Botany, Plant Growth and Development / September 8, 2019

Cytokinins are plant growth hormones which are basic in nature whereas auxins and gibberellins are acidic in nature. Cytokinins are either amino purine or phenyl urea derivatives that promote cell division in plants. Cytokinins promote cell division either alone or in conjugation with auxins. cytokinins are transported with the help of xylem. Cytokinins are phytohormones …

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Abscisic Acid (ABA): Overview, Discovery, Types, Bioassay, Functions

Botany, Plant Growth and Development / September 8, 2019

Abscisic Acid is well known for Abscision of leaves. Abscisic Acid is mildly acidic growth hormone. function as a General growth inhibitor bye counteracting other hormones. As we know that auxins gibberellins cytokinins are a growth-promoting hormone. Abscisic Acid is just the opposite of these hormones. IUPAC name of Abscisic Acid (ABA) International Union of …

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Factors affecting Plant Growth: External Factors and Internal Factors

Botany, Plant Growth and Development / September 5, 2019

Here we are going to discuss “Factors affecting Plant Growth: External Factors and Internal Factors“. Growth is affected by several factors which may be External or Internal. These factors ultimately affect the activity of Protoplasm of the cell. protoplasm affects the metabolism of the plant and if metabolism is disturbed, plant growth also gets affected. …

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Plant Hormones: Growth Regulators – Promoters and Inhibitors in Details

Botany, Plant Growth and Development / September 3, 2019

Here we are going to discuss “Plant Hormones: Growth Regulators – Promoters and Inhibitors in Details” Functions of plant growth promoters and plant growth inhibitors. Plant Hormones are special class of chemical substances which controls growth and development of plants. Hormones are needed in small quantity at very low concentrations. Hormones are really effective at …

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Plant Growth and Development: Phases, Curve, Measurement, Factors

Botany, Plant Growth and Development / September 2, 2019

Here we are going to discuss Plant Growth and Development, Plant growth Phases, Plant growth Curve, Measurement of Plant growth, Factors affecting plant growth. Regions of growth such as Apical, Intercalary and Lateral Meristems. Growth is a vital process which brings about Irreversible permanent changes in any plant or its part. These changes may be …

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