Plant Breeding- Steps and Significance

Plant Breeding- Steps and Significance

Plant Breeding Plant breeding is the purposeful manipulation of plant species to create desirable plant types that adapt to human needs more efficiently. It is an essential pre-requisite in the field of plant biotechnology. Plant biotechnology is a set of techniques used to adapt plants for intentional usage and benefits. Following are the interests of … Read more Plant Breeding- Steps and Significance

Plant Transformation Methods

Plant Transformation Methods

Plant Transformation Methods Transformation is defined as the process in which the genetic material of an organism is altered by the integration of new genes into its genome. The transformation is done by using vectors such as plasmids. The importance to produce transgenic plants is to: Improve crop yields. Improvement of varietal traits. transgenic plants … Read more Plant Transformation Methods

Rice bacterial blight and Citrus canker

Rice bacterial blight and Citrus canker

Rice bacterial blight and Citrus canker According to Julius Kuhn, plant disease is an abnormal change in physiological processes which disturbs the normal activity of plant organs. Significance Plant disease are important due to the economic loss they cause to the grower. The loss occurs in the field during storage at any time between sowing … Read more Rice bacterial blight and Citrus canker

Plants defense mechanism- structural, histological, chemical

Plants defense mechanism

Plants defense mechanism Plants diseases or phytopathogens affects plants right from the planting stage up to the harvesting and storage of the produce. Consequently, the plants have evolved several different mechanisms by which they defend themselves. These defense mechanisms in plants are termed as “BASAL RESISTANCE”. This term referring to two distinct aspects of plant-pathogen … Read more Plants defense mechanism- structural, histological, chemical

Plant Growth-Promoting Rhizobacteria (PGPR)

Plant Growth-Promoting Rhizobacteria (PGPR)

Plant Growth-Promoting Rhizobacteria (PGPR) What is PGPR? Plant growth-promoting rhizobacteria are the soil bacteria that colonize plant roots. They have the ability to: Reduce the insects and disease damage. Facilitate plant growth directly or indirectly. Decrease the global dependence on hazardous agricultural chemicals. Stimulate plant growth through mobilizing nutrients in the soil. Image Source: Paula … Read more Plant Growth-Promoting Rhizobacteria (PGPR)

Rust- Plant Fungal Disease

Rust- Plant Fungal Disease

Rust- Plant Fungal Disease Plant diseases caused by pathogenic fungi. Pucciniales (previously also known as Uredinales). Spermagonia Aecia Uredinia Telia Basidia Rusts hosts Apple Pear Wheat Barley Rye Infection area Leaves Petioles Tender shoots Stem Fruits Rusts are named after the reddish rusty looking sori and the disease is usually noticed after rain. The group contains pathogens that … Read more Rust- Plant Fungal Disease

Biological and Chemical control of plant diseases

Biological and Chemical control of plant diseases

Biological control of plant diseases 1- Parasitoids One parasitoid attack only on one host, and remain alive as a free-living adult in the host. The size of the parasitoids is the same as the host or may be smaller than the host. Mechanism The female parasitoid lays eggs inside or on the insect host. The … Read more Biological and Chemical control of plant diseases

Crown Gall Disease

Crown Gall Disease

Crown Gall Disease It is caused by Agrobacterium tumefaciens, which is a common plant disease (bacterial). The disease mostly affects dicotyledon species such as woody & herbaceous plants. Can be identified by the appearance of tumors of various size & shape at lower stem & main roots of the plant. Tumor cells use plant metabolites … Read more Crown Gall Disease

Factors for the establishment of plant diseases

Factors for the establishment of plant diseases

These are the factors for the establishment of plant diseases. Pathogen properties. Properties of the host. Presence/absence of nutritional component. Properties of environment. Image Source: AspenCore, Inc A) Pathogen properties 1. Level of virulence: Pathogen’s ability to infect/damage the host or to infect a resistant gene. 2. Adaptability: The ability of a microbe to grow … Read more Factors for the establishment of plant diseases

Biofertilizer- Types and Uses

Biofertilizer- Types and Uses

Biofertilizer- Types and Uses Biofertilizer is a substance which contains living microorganisms which, when applied to seeds, plant surfaces, or soil and promotes growth by increasing the supply or availability of primary nutrients to the host plant. Biofertilizers add nutrients through the natural processes of nitrogen fixation, solubilizing phosphorus, and stimulating plant growth through the synthesis of … Read more Biofertilizer- Types and Uses