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| Ethylene does what to plants |
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Definition
| KILLS THEM---ripening fruits and aging flowers. Blows up around wounded tissue. it is made up of hydrocarbon molecule and gas like propaine. when the flame in a heater is burning with orange |
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| Ethylene is the "_________ Hormone" |
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Definition
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| Gibbrellic Acid (GA) does what to plants |
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Definition
| Growh retardant, used to produce compact plant. Can cause bolting in biennals. Increases size of seedless grapes. Increases seed germination. |
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| gets plants to go into winter dormancy. May cause leaf drop in some plants (mass leaf suicide) causes stomata to close |
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| curling and contortion of leaves caused by ethyelene |
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| Qualitative measures of the amount of heat energy- Ex. lighter and torch have the same size flame but the torch is much more destructive |
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| A quantitative measure of the amount of heat energy. molecules moving and causing heat energy- MORE FLAME |
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| Ammount of head energy required to raise 1 G of water by 1 degree celcius |
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| Ammount of heat required to raise 1 lb of water by 1 degree F |
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| Ammount of heat (#Cal) required to raise 1 G of a substance by 1 C |
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| number of calories needed to change one gram of solid to liquid (water =80) |
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| Ammount of energy it takes to evaporate something (liquid to gas) water is 540 |
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Term
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Definition
| Tropical, Temperate, Artic |
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Term
| Tropical Climatic zones (tropic of cancer, tropic of capricorn) are located |
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Definition
| between 23 1/2 degrees latatude north and south of the equator |
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Term
| Temperate Climatic zone is located at |
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Definition
| between 23 1/2 and 66 1/2 degrees latatude north and south of the equator. between tropical and artic climatic zones |
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Term
| Artic Climatic Zone (artic and antartic zone) |
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Definition
| North and south of 66 1/2 |
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| Know the names of climatic zones and know their degrees |
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Definition
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| What zone does temperature fluctuate most in |
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Definition
| Caused by the unique tilt of the earth and its orentation to the earth |
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Term
| Winter Solstice - Dec 21 or 22 |
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Definition
| Earth tilted 23 1/2 degrees away from the sun |
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Definition
| March 20 or 21 day and night are the same.. earth axis is oriented oblique to the sun |
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| Minimum average temperature |
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| Slopes warmest to coldest |
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| Water does what to sorrounding temperature |
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| 14 questions on Hormones...study them good |
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Definition
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| The range in which plants grow and survive |
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| Minimum Cardinal Temperature |
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Definition
| 40-50 F for most species. |
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Term
| PLANTS DONT GROW IN THE 40's |
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Definition
| Minimum cardinal temperautre |
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Term
| Tender or chilling sensitive |
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Definition
| 32 to 45 f -- Tropical Plants |
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Definition
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| Hardy Plants surivival temp |
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Definition
| what plants are less than 0'F |
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| Memorize all growing ranges for plants |
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Definition
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| Cool season plants grow best at |
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Definition
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| Cool season plants In the southern US |
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Definition
Cool season plants grow as fall winter crops
in the north- late spring summer and early fall |
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| warm season plants grow best at |
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Definition
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| In the southern US Warm Season plants |
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Definition
| Grow in late spring, summer, and early fall |
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Term
| In the Northern US, warm season plants |
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Definition
| warm season plants grow in the summer but for some warm season crops may be too short to get good yeild |
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| Maximum Cardinal Temperature |
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Definition
Growth 90-96
Survival 130 F |
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| Dies slowly or just poor growth |
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Definition
| high temp damage to plant |
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Definition
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Definition
| dessication followed by death of tissue |
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| Respiration exceeds photosynnthesis |
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Definition
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Definition
| Insulates soil and blocks out light....THIS IS THE BEST THING YOU CAN DO |
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| decreasing high temperatures |
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Definition
| decrease light intensity, covering nursery crops, shading compund or white wash painted on greenhouse roof, clolored solution flowing through a double pained glass |
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Term
| Every green house on campus has what |
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Definition
| a white washed greenhouse roof |
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Term
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Definition
| spray foliage and physical structures in mid afternoon, fine mist, fan and pad cooling. |
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Term
| Types of cold temp injury |
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Definition
| chilling injury, freeze injury |
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Term
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Definition
| Above freezing 32-45 'F this is where tropical plants die btw |
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Definition
| Below Freezing, Below 28 'F |
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| come from N/W Every 5-7 days |
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Definition
| when condensation on grass occurs, temp drop below dewpoint |
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Term
| Two types of radiational freezes |
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Definition
| White Frost, and Black Frost |
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Term
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Definition
| Both the current temp and dew point below freezing point. DP=30 Temp=28 |
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Term
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Definition
Temp below freezing, but above dewpoint
DP=28 TEMP=30 |
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Definition
| temp drops de to the invasion of a cold air mass or convection current |
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Term
| what has to happen for a temp inversion |
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Definition
| night, no wind, no cloud cover |
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Term
| How to prevent radiational freeze or frost |
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Definition
| Decrease rate of radiational cooling, or increase air teperature |
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Term
| How to decrease rate of radiational cooling |
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Definition
| hot caps or plastic tents, mulches, foams, fog or water vapor, smoke. |
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Term
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Definition
| Eliminate temperature Inversion: wind machine, helecopters. Irrigation: flood irrigation, or overhead irrigation. Oil burners or smudge pots |
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Definition
| The IDEAL method to prevent advective freeze damage |
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