Q: Explain the adaptation favouring plant growth and development in cold regions.
A: There could be some mutations in the gene which may result in waxy coating of the leaves and more…
Q: Enlist advantages and disadvantages of vegetative propagation. 2- Define the critical stages, and…
A: 1- Vegetative propagation:Is a Asexual method of reproduction in plants. In this vegetative parts of…
Q: What are the signs of pathogens in plants? Define and give examples.
A: Pathogens can be defined as disease-causing organisms. In plants, various types of organisms like…
Q: Distinguish between biotrophic and necrotrophic plant pathogens.
A: The plant pathogen is the organism that causes the disease on a plant. However the relatives of some…
Q: Kindly provide 2 examples plants having "adaptations for protection" including (i) mechanical…
A: Plants are the members of the kingdom Plantae which includes not just flowering plants but also…
Q: Which of the following is an effective plant defense against insect herbivory? Select one: a.…
A: In plant science, proteinase inhibitors are a group of little proteins that serve an indispensable…
Q: What do plant pathogens and parasite have in common?
A: Plant pathogens are those cause disease in plants.examples include Bacteria, Protozoa,Fungi etc.…
Q: State two known plant disease epidemics that occurred in the 21st century. Explain the two and how…
A: Plant disease epidemics refer to the involvement of changes in the intensity of the disease over…
Q: Which of the following statements best describes what is depicted in the above image? The leaf in…
A: Q. The correct option is B i.e, The leaf in the image an example of a plant defence known as…
Q: These are the characteristics of high quality seeds EXCEPT: Have fewer weed seeds Free…
A: Seeds are the the fertilized ovum that are produced by the female gametophytes. after germination it…
Q: Choose the one answer that fits best. Which of the following is NOT true with respect to plant…
A: Plants come under the category called kingdom ‘Plantae’. They are referred to as living organisms…
Q: What are the three major factors involved in the development of plant diseases?
A: There are 3 major factors involved in the development of plant diseases. Each of them is described…
Q: Outline how plants protect themselves against pathogenic attack.
A: Plants represent a rich source of nutrients for many organisms including bacteria, fungi, protists,…
Q: What are the differnces between primary and secondary metabolises and how do some plants recognize…
A: Metabolites are the products formed from metabolic activities. Metabolites can be primary and…
Q: Given what you know about trade-offs in plants, in which of the situations below would we predict a…
A: Plants defend themselves against a variety of herbivores by developing mechanisms that are either…
Q: Are chemical fungicides still part of integrated approach of managing plant diseases? Explain
A: Chemical fungicides are pesticides that kill or prevent fungal growth. They are the chemicals…
Q: What are the two general ways by which plant pathogens gain entry into the host plant tissue? What…
A: The organisms that enter the body of a plant (host) and affect the normal plant physiology by their…
Q: Differentiate late and early planting of rice in terms of their effects on rice insect pests and…
A: Rice is the staple food of about half of the population earth's population. However, insects, pests,…
Q: Explain in your own words, the benefits of each type of vegetative propagation method
A: Vegetative propagation is also called asexual propagation in which there is no involvement of male…
Q: Discuss the role of botanist in plant diseases management methods like systemic resistance,…
A: Plant diseases can be easily controlled by taking few measures by the farmer. By using…
Q: Which of the following is most likely NOT an example of a plant defense to herbivory? Lignin…
A: There are many adaptation data karne plan against herbivores. Herbivores are animals that feed on…
Q: Enlist important maize weeds, and suggest their control.
A: Note- As per our guidelines we are supposed to answer only 1st question, please repost second…
Q: What is the significance of knowing the different weed species associated with crops?
A: A weed is an unwanted plant that grows along with other plants to affect their growth. Some weeds…
Q: A nutrient defiency symptom exhibited interveinal chlorosis of older leaves first. Indicate the…
A: Symptoms of malnutrition indicate interveinal chlorosis of older leaves first. Symptoms of…
Q: engineer resistance into crop plants
A: A crop is a plant or plant product that can be grown and harvested for profit or subsistence.
Q: How can pesticides maximize the growth and development of their plants without compromising the…
A: A pesticide is a chemical molecule (like carbamate) or a biological agent (such a virus, bacteria,…
Q: Drying and aging seeds is a way to enhance seed viability and germination and at the same time to…
A: Introduction The viability of a seed accession is a measure of how many seeds are alive and capable…
Q: What will be the effect of macronutrient deficiency on plant growth and development
A: Macronutrients are of two types primary and secondary macronutrients. Primary macronutrients are…
Q: Phenolics, spines, terpenes, cutins, defense related proteins and suberin are some examples of plant…
A: Plant defense can be hypothetically categorized into physical barriers and chemical barriers based…
Q: The main difference between plant defense mechanisms that use chemical secondary metabolites and…
A: Answer : Option (2) is right.- the metabolites are present at all times, and the systemic response…
Q: What is the term used to describe the severe reduction in metabolism during stress where plants…
A: Dormancy : It is a strategy of higher plants to survive adverse conditions by pausing growth and…
Q: List 5 insects that attack ornamental plants, and for each of the 5 insects, indicate the stage of…
A: Insects are known to cause damage to crops by either direct or indirect modes. The insect can…
Q: explain some of the defense mechanisms that plants have to protect themselves from herbivores and…
A: Herbivores including both the large and small species use plants as food and actively chew them. The…
Q: What are the dependent, independent and extraneous variables that can affect the growth of a plant…
A: Plants, like animals and other species, must constantly adapt to their ever-changing circumstances.…
Q: Environmental factors that induce a response are called Select one: O a. tropisms. O b. stimuli. O…
A: Introduction :- Any abiotic or biotic component that effects living creatures is referred to as an…
Q: Which of the following statements best describes what is depicted in the above image? The leaf in…
A: Plant defense mechanism are required for protection against herbivores they help the plant to not…
Q: Identify the type of environmental plant stress (abiotic or biotic) and suggest a response to or…
A: In plants, stress is a exterior condition in which it affect adversely the productivity, development…
Q: How can insects make plants more susceptible to pathogens?
A: Epidermis is the outermost layer of the stem that acts as a protection to the plant. Beneath the…
Q: What does a sub-cause represent
A: Causes can be defined as the factors or the events that are responsible directly or indirectly to…
Q: Plant growth... hormones only have very specific, limited functions is centrally…
A: Plant hormones are organic molecules that are produced in the plants which control plant growth and…
Q: The following statements apply to the dose response curve of the saturation concept except: A.…
A: Introduction :- The dose–response relationship, also known as the exposure–response relationship,…
Q: What is the effect of the plant pathogen to the infected or diseased plant?
A: The plants are formed of roots, stem, leaves, fruits and flowers. The conduction system in plants is…
Q: How the contagium fluid with co rraltion to its discovery in plants starts the era of new infective…
A: The first virus described was the tobacco mosaic virus and the description was the contagious liquid…
Q: what is the usefulness of plants as a model for studying the pathogenicity of P. aeruginosa
A:
Q: Plants have systemic defense mechanisms ( those that are not normally active but can be induced when…
A: Plant defense describes a range of adaptations evolved by plants that improve their survival and…
What is meant by variability among pathogens? Explain the significance of the variability of pathogens to the occurrence of plant diseases.
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- Describe how fertilizers affect disease severity. Give three examples of fertilizer practices that increase and decrease disease. What is the optimum way to use fertilizers to minimize disease?How the contagium fluid with co rraltion to its discovery in plants starts the era of new infective pathogens involved as casutive agents of disrupting population of plants? Mention such examples of symptamatic appearance of such infection?What are the three major factors involved in the development of plant diseases?
- What are the differnces between primary and secondary metabolises and how do some plants recognize spesific substance released from pathogens?Which of the following is an effective plant defense against insect herbivory? Select one: a. Hypersensitive response b. Gene-for-gene resistance c. Salicylic acid d. Protease inhibitors e. Resistance genesThe following statements apply to the dose response curve of the saturation concept except: A. Decreased plant response in the deficiency zone B. Increased plant response in the deficiency zone C. Decreased plant response in the toxicity zone D. Heavy metal sequestration in the cell wall