Plant pathology terms
Plant pathology terms 1. Parasite: An organism living upon or in another living organism (the host) and obtaining the food from the invading host. 2. Pathogen: An entity, usually a …
Seed Storage: Purpose, Importance, Condition, Principles
Definition, purposes, importance, conditions, principles of seed storage are given below- Seed Storage Seed storage may be defined as the conservation of seeds obtained from the harvest until they are …
Significance of dissemination of plant pathogens by seed
Significance of dissemination of plant pathogens by seed Seed transmission is the act of dissemination of pathogen and inoculation of host by the pathogen through seeds for the preparation of disease from one generation to another generation. Plant pathogen can be transmitted through various agents. Among them seed is the most efficient carrier of pathogen. The significance of transmission of pathogen through seed are discussed below 1.Dormant conditions: The dormant conditions of the seed is highly favourable for …
Importance of seed borne diseases in Bangladesh
Importance of seed borne diseases in Bangladesh Bangladesh is an agro based country. The principal crops are Rice, Wheat, Jute, Potato, Sugarcane, Pulses, Oil seeds and different vegetables. Most are the …
Seed borne Pathogens, Seed Transmitted pathogen
Seed borne Pathogens Any organism or pathogen carried in or on or with seed, may be termed as seed borne pathogen. e.g. Curvularia spp, Loose smut of wheat pathogen, Covered smut of barley pathogen. Seed Transmitted pathogen Transfer and re establishment of seed borne pathogen from seed to plant may be termed as seed transmitted pathogen. These pathogen may be stayed with seed surface, embryo, endosperm etc. How seed borne pathogen are …
Seed health testing techniques
Seed health testing techniques Seed Pathology Seed pathology is the branch of pathology that locating to seed and dealing with ♦ Seed diseases. ♦ Seed borne plant diseases. ♦ Techniques involved for their detection. ♦ Mechanisms of their transmission. ♦ Factors affecting their transmission. ♦ Control measures. ♦ Assessment of inocula, planting value etc. In modern agricultural science, seed pathology is the branch of plant pathology locating to seed and seed technology rendering (supply) efficient services and opportunities to promote successful agricultural production and quality concerns seed, trade all over the world. Seed Health Seed health refers to the presence or absence of diseases causing organisms such as fungi, nematodes, bacteria, viruses and insects and to the status of seeds in a seedlot. Seed status is also affected by the presence of non diseasecausing contaminants in the particular seedlot. These include contaminants like weed seeds that compete with the target seed for nutrients. Other seeds, plant parts other than the target seeds, soil particles and insect eggs that can overwinter can degrade the quality of the seedlot. …
Root Pruning
Root Pruning It is the process of cutting back long roots to encourage a tree or shrub to form new roots closer to the trunk (common in potted plants too). Tree root pruning is an essential step it are transplanting an established tree or shrub. Or, The practice of removing a portion of a tree’s root system. Objectives 1. To increase the uniformity of the stock. 2. To increase the ease of planting. 3. To increase the initial field survival. 4. To stimulate lateral root development. 5. To allow production of seedlings rather than transplants. 6. To Avoid root problems later in time – circling or kinked roots in containers. 7. To Limit the rate of shoot growth for plants growing too fast. Best time to prune roots The best time to prune roots is from full bloom until two weeks later. Prune roots only when flowering is sparse or to break a biennial pattern (in the off year). If flowering is not sparse but the trees still have had too much vigour, prune roots in late November or early December — after the fruit has set and cell division has ended. Do not prune roots when there has been a good fruit set for fear of affecting fruit size. Factors affecting response …
Alley cropping definition, objectives, and benefits
Alley cropping is a sustainable agriculture practice that helps to conserve soil and water. Crops are planted in narrow rows between trees or other tall plants. This arrangement creates shaded …
Pollarding of trees
Pollarding is a pruning system in which the upper branches of a tree are removed, promoting a dense head of foliage and branches. Traditionally, trees were pollarded for one of …
What is Allelopathy? Plants, Effects, and 5 Advantages
Have you ever heard of allelopathy? If not, don’t worry – many people are unfamiliar with this biological phenomena. Discovering allelopathy in nature can be fascinating, beneficial and even critical …