AGRN 1000 Final
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| Source | show 🗑
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| Sink | show 🗑
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| show | length of light in a day, which changes throughout the growing period
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| Pistil | show 🗑
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| Vernalization | show 🗑
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| Phloem | show 🗑
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| show | water conducting tissue. Moves only up from the roorts
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| Leaf Canopy | show 🗑
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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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| show | plants have chloroplasts that absorb light energy to make food. they absorb red light and blue light but not green light so the color green is reflected.
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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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| show | date palm, cherry tree, pistachio
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| C4 Plant Species | show 🗑
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| show | • Stolons: lateral, above ground stems (turfgrass, strawberries) • Rhizomes: lateral, below ground stems (Johnsongrass)
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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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| The concentration of H ions in the soil + | show 🗑
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| show | is directly related to soil pH
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| show | Water that is unavailable to plants
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| show | soil texture and structure
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| show | water and air
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| Of the following, the only plant parts that are involved in asexual reproduction are the | show 🗑
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| show | Stamens and Pistil
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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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| Subtracting the rate of glucose breakdown (respiration) from the rate of glucose accumulation (photosynthesis) gives the | show 🗑
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| show | mitochondria
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| In its simplest form, photosynthesis can be divided into | show 🗑
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| The desired LAI (leaf area index) range for most crops is | show 🗑
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| The majority of carbon found on earth is in the form of | show 🗑
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| The main function of stolons is | show 🗑
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| Light frequencies that are best absorbed by chlorophyll and other plant pigments are | show 🗑
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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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| show | wheat and other small grains
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| show | is currently over 6 billion
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| show | The shift from ice-ages to a warmer climate and development of religions
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| show | any plant used by man for any useful purpose
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| Subsistence | show 🗑
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| show | moving as resources were depleted (no land ownership)
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| Commercial Agriculture | show 🗑
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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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| show | vegetable production, a lot of investment with a lot of monetary return. example: peanut production
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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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| show | sorghum, okra, yam, watermelon
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| Thomas Malthus | show 🗑
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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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| show | embryo with one cotyledon, fibrous roots, parallel leaf veination. example: grasses, lily, orchid, banana, yam
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| show | two cotyledons, taproot system, net veination. example: cotton, legumes, sweet potato, pepper
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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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| roots | show 🗑
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| nutrient | show 🗑
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| show | bacteria feed off of plant sugars and in return give the plant nitrogen
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| show | grass with a hollow stem like rice
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| Stalk | show 🗑
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| Nodes | show 🗑
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| show | lateral, above ground stems (turfgrass, strawberries)
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| show | lateral below ground stems
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| Crown | show 🗑
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| Tubers | show 🗑
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| Bulb | show 🗑
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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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| Functions of Leaf Canopy | show 🗑
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| Leaf Area Index (LAI) | show 🗑
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| show | photosynthesis, food storage, translocation of sugar, gaseous exchange,
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| Vascular Tissue | show 🗑
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| Photosynthetic Reaction | show 🗑
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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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| Respiration | show 🗑
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| Aerobic Respiration | show 🗑
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| Anaerobic Respiration | show 🗑
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| Photorespiration | show 🗑
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| Rubisco | show 🗑
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| show | movement/loss of water through the leaves (evaporative loss). functions to cool the leaf. Effected by wind, humidity, and temperature
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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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| show | all the sepals together
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| show | Stamen, Filament, Anther
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| Female Flower Parts | show 🗑
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| show | one that has all the parts
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| show | lacks 1 or more parts, this includes all the grasses
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| show | has both male and female parts
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| show | either a male flower or a female flower
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| show | have both male and female flowers on the same plant
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| Dioecious | show 🗑
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| show | vegetative and reproductive
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| show | length of light in a day, which changes throughout the growing period. plants use photoperiod to sense changes in season
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| Short Day Plants | show 🗑
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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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| show | anything derived from a formerly living thing
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| Mineral Matter | show 🗑
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| 3 Classes of Soil Particle Size | show 🗑
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| Chemical Reactivity is | show 🗑
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| show | determined by texture and structure. as the particles get smaller the pore size goes up. it determines water holding capacity, influences infiltration rate, and root penetration
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| show | the top layer of organic matter. can absorb the force and moisture from rain
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| Duff | show 🗑
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| Humus | show 🗑
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| Gravitational Water | show 🗑
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| show | available, held in soil by capillary action
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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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| Preferred crop pH | show 🗑
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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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| Based on annual precipitation, Alabama is in the crop region best described as | show 🗑
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| show | total dry matter yield
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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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| the three major tools of the plant breeder are | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
asculpepper
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