Related Experiment Video

Updated: Jun 24, 2026

Screening Cotton Genotypes for Reniform Nematode Resistance
06:28

Screening Cotton Genotypes for Reniform Nematode Resistance

Published on: May 2, 2019

Influence of Nonhost Plants on Population Decline of Rotylenchulus reniformis

E P Caswell, J Defrank, W J Apt

    Journal of Nematology
    |March 14, 2009
    PubMed

    Keywords:
    Chloris gayanaCrotalaria junceaDigitaria decumbensHawaiiTagetes patulaallelopathychitincover cropmarigoldnematode managementnematode population declinepangola grassreniform nematoderhodes grasssoil amendmentsunn hemp

    More Related Videos

    Sampling for Estimating Frankliniella Species Flower Thrips and Orius Species Predators in Field Experiments07:13

    Sampling for Estimating Frankliniella Species Flower Thrips and Orius Species Predators in Field Experiments

    Published on: July 17, 2019

    Related Concept Videos

    Epiphytes, Parasites, and Carnivores02:40

    Epiphytes, Parasites, and Carnivores

    Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the biosynthesis of the...
    Conservation of Declining Populations02:07

    Conservation of Declining Populations

    Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
    Hypothesis: Accept or Fail to Reject?01:17

    Hypothesis: Accept or Fail to Reject?

    The outcome of any hypothesis testing leads to rejecting or not rejecting the null hypothesis. This decision is taken based on the analysis of the data, an appropriate test statistic, an appropriate confidence level, the critical values, and P-values. However, when the evidence suggests that the null hypothesis cannot be rejected, is it right to say, 'Accept' the null hypothesis?
    There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null hypothesis and 'fail to...
    Frequency-dependent Selection01:21

    Frequency-dependent Selection

    When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.Positive Frequency-Dependent SelectionIn positive...
    Conservation of Small Populations02:04

    Conservation of Small Populations

    Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less likely to...
    Microbe-Plant Interactions01:09

    Microbe-Plant Interactions

    Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...