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Topic review
Updated time: 14 Apr 2021
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Definition: Even though climate change is having an increasing impact on tea plants, systematic reviews on the impact of climate change on the tea system are scarce. This study was undertaken to assess and synthesize the knowledge around the impacts of current and future climate on yield, quality, and climate suitability for tea; the historical roots and the most influential papers on the aforementioned topics; and the key adaptation and mitigation strategies that are practiced in tea fields.
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Topic review
Updated time: 02 Jun 2021
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Definition: Weeds can be defined as any plant that is objectionable or interferes with the activities or welfare of humans. In a crop production system, weeds compete for the same resources as the crops, such as water, nutrients, sunlight, and space, limiting crop productivity. Aggressive weed competition reduces crop yield significantly and adds further cost to crop production owing to their management. Yield loss due to weeds depends on several factors such as density, time of emergence, type of weed, and crop type.
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Topic review
Updated time: 02 Dec 2021
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Definition: Crop residue management choices should be measured on the premise of productivity, gain, and environmental impact. These criteria would overlap with those employed in the approach of ecological intensification for intensive crop production systems aiming to fulfill the increasing demand for food, feed, fiber, and fuel, while meeting acceptable standards of environmental quality.
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Topic review
Updated time: 25 May 2021
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Definition: Competition over land between food and fodder production, along with recurrent droughts and increasing population, has put mixed crop–livestock farming systems in the drylands of sub-Saharan Africa under pressure. Dual-purpose crops hold huge potential to ease this pressure and simultaneously improve food and fodder availability in these systems.
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Topic review
Updated time: 03 Nov 2021
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Definition: Formation of viral replication complex (VRC) is an essential step for genome replication of single-stranded positive RNA (ssRNA +) viruses infecting plants. They are composed of viral proteins as well as host proteins and generally localized to cellular endomembranes. Certain viral proteins are responsible for the recruitment of host proteins involved in endomembrane distortions to induce the formation of vesicles or small compartments.
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Others
Updated time: 07 Dec 2021
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Abstract: Essential oils of lemongrass, lemon, thyme, peppermint, abundance blend, purification blend, and thieves blend were tested in vitro and under greenhouse conditions in two separate experiments. The effects of essential oils were tested against powdery mildew disease at concentrations of 1.0–2.5 mL/L, and the consequent impact of the oils on plant growth was evaluated. Powdery mildew fungus, Podosphaera xanthii, was identified using sequencing of the ITS region. The essential oils significantly reduced disease incidence up to 77.3% compared with the positive control (p < 0.5).
Entry Collection : Environmental Sciences
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Topic review
Updated time: 27 Apr 2021
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Definition: In all farming systems, weeds are the most expensive pest to manage, accounting for 30% of potential losses. In organic farming, the problem may be further amplified by restrictions on herbicides, thus making weeds the main problem faced by organic farmers in the field. In this sense, much research is focusing on the allelopathic potential of plants as an ecological weed control tool. Many plant species can release allelopathic compounds with high phytotoxicity that can be used in weed control. Species belonging to the Lamiaceae family have been studied widely for this purpose, and their essential oils (EOs) appear to be promising bioherbicides. However, there are still many challenges for their development.
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Topic review
Updated time: 28 Sep 2021
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Definition: Ficus caricaL. (fig) is a species of the very large number of the genusFicusbelonging to the Moraceae famil, characterized by milky latex in all parenchymatous tissue, unisexual flowers, anatropous ovules and aggregated drupes or achenes. Figs are infruitescences—the true fruits of the fig are located inside the fig or siconio, which are called achenes.
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Topic review
Updated time: 11 Sep 2021
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Definition: Granular organic fertilizers' production has recently become more popular, with the main aim of converting high-moisture organic matter, such as manure, manure mixtures, meat and bone waste or other organic matter, into pellets that are convenient to spread in the field. The pellets are usually produced with the diameter of 4 or 6 mm so that they can be easily spread with mineral or organic fertilizer spreaders. Once in the soil, organic fertilizer pellets become wet, decompose and release nutrients.
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Topic review
Updated time: 25 Jun 2021
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Definition: Insect pheromones are specific natural compounds that meet modern pest control requirements, i.e., species-specificity, lack of toxicity to mammals, environmentally benign, and a component for the Integrated Pest Management of agricultural pests. Mass trapping and mating disruption strategies using sex pheromones have significantly reduced the use of conventional insecticides, thereby providing sustainable and ecofriendly pest management in agricultural crops.
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