AGRN 1000 Final
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Source | show 🗑
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| show | an area in the plant where sugars are needed. May be a an area where the plant is growing such as a root, stem, flower, or fruit
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| Photoperiod | show 🗑
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| Pistil | show 🗑
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| Vernalization | show 🗑
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| show | food conducting tissue. Can move in any direction
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| Xylem | show 🗑
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| show | the configuration of crop leaves in the field • Prevents sunlight from hitting soil • Prevents sunlight from reaching weeds • We want lead canopy to grow as rapidly as possible
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| What material is routinely added to soils to adjust pH level (generally added to acid soils to increase pH, and thus lower [H] in the soil)? + | show 🗑
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| why are plants green | show 🗑
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| show | lodging: the tendency for a plant to become top-heavy and fall over. Caused by excess fertilizer, water, high plant population, insects, disease, or genetic factors
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| Briefly the role of photoperiod sensitivity in crop adaptation in a north-south vs. east-west direction, especially as it applies in a historical | show 🗑
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| show | there is a linear relationship between these. As the leaf area index and % solar interception go up, so does the dry matter. A study in the 1960's found that my decreasing row spacing you could achieve more solar interception and more dry matter
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| Legume | show 🗑
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| Cross-pollinated crop | show 🗑
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| C4 Plant Species | show 🗑
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| Modified Stem | show 🗑
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| show | • H+ • Ca++ • K+
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| show | nitrogen and magnesium
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| show | water
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| show | goes up at the pH goes up
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| show | is directly related to soil pH
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| Hydroscopic soil water is | show 🗑
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| Soil water-holding capacity (the ability of a soil to absorb and hold water) is mainly dependent upon | show 🗑
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| In a given soil, the most variable of the four major components are | show 🗑
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| show | stems
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| Essential flower parts include the | show 🗑
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| A vegetatively-growing crop plant is subjected to a 13.5 hour photoperiod, which is increased by 1/2 hour each week. When the photoperiod reaches 15 hours, the plant starts to flower. This plant species would be | show 🗑
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| Water loss through the leaves is part of a plant process known as | show 🗑
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| show | Net assimilation rate
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| Photosynthesis takes place in specialized structures called chloroplasts, while respiration takes place in specialized structures called | show 🗑
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| show | light and dark reactions
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| show | 2.6 to 4.0
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| show | biomass (plant and animal tissues)
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| show | asexual propagation
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| show | blues and reds
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| show | nodes
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| The most important crop families, in terms of food production, are | show 🗑
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| Crop plants thought to have originated in southwest Asia (present-day Iraq) include | show 🗑
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| Earth's human population | show 🗑
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| The best explanation for man’s sudden shift from hunting and gathering to an agriculture- based society is | show 🗑
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| Crop | show 🗑
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| show | growing food (animals and plants) just to feed you and your family, not for commerce. Animals were probably domesticated first.
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| show | moving as resources were depleted (no land ownership)
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| show | producing enough to use of profit/trade/ you need to develop systems of storage, currency, transportation, and written communication.
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| show | like rangeland for cattle or dryland wheat production. inputs are low, not a lot of potential profit
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| Intensive Agriculture | show 🗑
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| Early Crops of Southwest Asia (Iraq) | show 🗑
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| show | rice, sugarcane, coconut, tea, citrus, and soybean
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| Early Crops of the Americas | show 🗑
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| Early Crops of Africa | show 🗑
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| show | english clergyman that developed an equation between food and population. believed our population will grow to a point where it will strip the food resources and famine will occur
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| What portion of the Earth is land? | show 🗑
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| show | flowering plants, appeared in the early cretaceous
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| Monocot | show 🗑
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| Dicot | show 🗑
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| Poaceae | show 🗑
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| Fabaceae | show 🗑
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| show | night shade family example: potato, pepper, tomato, tobacco
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| Taproot | show 🗑
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| Fibrous roots | show 🗑
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| show | one of the 3 main plant organs. function to absorb water and nutrients
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| show | refers to calcium ions, phosphates, or nitrogen, NOT FOOD. plants manufacture food through photosynthesis
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| legumes | show 🗑
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| show | grass with a hollow stem like rice
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| show | grasses with a solid stalk
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| Nodes | show 🗑
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| Stolons | show 🗑
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| Rhizomes | show 🗑
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| show | major organ of asexual reproduction. it is the junction between the roots and the upper part of the plant
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| show | major organ of asexual reproduction. white potato are tubers
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| show | organ of asexual reproduction, basically a compressed stem with fleshy leaf tissue. example: onion
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| show | similar to a bulb but has less leaf tissue
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| Apical Dominance | show 🗑
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| show | prevents lateral node production, but as the plant grows taller, the less effective the hormone is so you see lateral growth, thus the Christmas Tree shape. even if you bend the plant over this will still occur
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| show | the tendency for a plant to become top heavy and fall over. this can be caused by excess fertilizer, water, high plant population, insects, disease, or genetic factors
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| Functions of Stems | show 🗑
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| Leaf Canopy | show 🗑
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| show | prevents sunlight from hitting soil, prevents sunlight from reaching weeds.
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| Leaf Area Index (LAI) | show 🗑
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| Functions of Leaves | show 🗑
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| Vascular Tissue | show 🗑
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| show | 6CO2 + 12H2O --Sunlight and Chlorophyll --> C6H12O6 + 6 H2O
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| Dark Reactions | show 🗑
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| show | 1. CO2 2.H20 3. Light (frequency and intensity) 4. Temperature 5. Carbohydrate translocation 6. Leaf Age
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| show | 1. Increase LAI (decrease row spacing) 2. Plant Genetics 3. Planting Date 4. Plant Nutrition 5. Pest Control
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| show | process of obtaining energy from organic materials. provides energy for cell division, elongation, and other metabolic processes
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| show | occurs in the presence of oxygen. C6H12O6 --> 6CO2 + H2O + 40ATP
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| show | occurs in the absence of oxygen C6H12O6 --> 2C2H5OH + 2 CO2 + 2H2O + 2ATP produces ethyl alcohol and occurs in the cytoplasm
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| show | occurs in chloroplasts and requires light. but is considered to be a detrimental process, does no contribute to the growth of the plant. caused by rubisco
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| show | or RuBP, stands for ribulose biphosphates carboxylase oxygenase. it is an enzyme
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| Transpiration | show 🗑
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| show | how sucrose gets from the production site (source) to the place where it is needed (sink)
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| Corolla | show 🗑
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| Calyx | show 🗑
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| show | Stamen, Filament, Anther
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| show | Pistil, stigma, style, ovary
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| show | one that has all the parts
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| Incomplete Flower | show 🗑
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| show | has both male and female parts
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| Imperfect Flower | show 🗑
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| Monoecious | show 🗑
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| Dioecious | show 🗑
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| show | vegetative and reproductive
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| Photoperiod | show 🗑
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| show | flower in response to shortening photoperiod. flower after summer solstice (july)
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| show | flower in response to lengthening photoperiod. flower after the winter solstice. cool season plants that are fall planted and spring harvested
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| show | they don't care what the photoperiod is. during domestication we bred out the photoperiod response. MORE VALUABLE
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| Soil Components | show 🗑
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| Organic Matter | show 🗑
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| Mineral Matter | show 🗑
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| show | fine sand/sand, silt, clay
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| show | a function of particle size
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| Soil Pore Size | show 🗑
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| Litter | show 🗑
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| show | first stage of decay of organic matter
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| Humus | show 🗑
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| Gravitational Water | show 🗑
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| Capillary Water | show 🗑
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| Hydroscopic Water | show 🗑
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| show | all pores are filled with water, much of which is gravitational
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| show | all gravitational water is gone
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| Wilting Point | show 🗑
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| show | 6.0 to 7.3 ( a little bit acidic)
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| Cation Exchange Capacity (CEC) | show 🗑
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| show | the amount of water needed to create a certain amount of dry matter. C4 plants are more efficient with water use than C3 plants
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| show | humid
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| The water-use efficiency ratio for crop plants can best be described as the ratio between amount of water used and | show 🗑
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| Insect, disease and weed pests are best managed using a system of biological, cultural, chemical, and other tools otherwise known as | show 🗑
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| The primary function of sulfur in plant metabolism is | show 🗑
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| show | introduction, selection and hybridization
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Created by:
asculpepper
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