Basic Crop Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Determinate Plant | Begin flower initiation after the plant has finished its vegetative phase of growth (all grasses are in this classification)
🗑
|
||||
| Indeterminate Plant | Begin flower initiation as it continues to grow vegetatively
🗑
|
||||
| Determinate cultivars | Primarily grown in the south
🗑
|
||||
| Indeterminate cultivars | Primarily grown in the mid-west and north
🗑
|
||||
| Nutrition | poor nutrition, low Ps rates & high N rates that promote vegetative growth can lower flowering rates
🗑
|
||||
| Photoperiodism | the flowering response of plants to the light period experienced in a 24-hr day
🗑
|
||||
| Temperature | Some plants require a cold period below a certain temperature in order to initiate flowering
🗑
|
||||
| Day neutral plants | do not flower based on day length. Ex- alfalfa, cotton, peanut
🗑
|
||||
| Short-day plants | begin to flower with longer nights. Ex- soybean, warm season weeds like sicklepod & morningglory
🗑
|
||||
| Long-day plants | begin to flower with shorter nights. Ex-small grains
🗑
|
||||
| Vernalization | a requirement for cold temperatures before a plant will begin to flower. Small grains planted in the spring will not flower during the summer.
🗑
|
||||
| Asexual reproduction | Generating new individuals from the cells of a single parent often using plant parts including roots, stems, etc.
🗑
|
||||
| Plant sexual reproduction | Generating new individuals by utilizing male and female gametes to produce a fertilized egg (ovule) and the resulting seed for planting
🗑
|
||||
| Advantages of Asexual Plant Propagation | Offspring has the exact same characteristics as the parent;
Increase only requires one parent with no pollen exchange;
Increasing plants done with crude implements without genetic crossing necessary;
Still requires a breeding program to improve cultiva
🗑
|
||||
| Complete Flower | A flower having all floral structures, including the sepals, petals, stamen, and pistil
🗑
|
||||
| Incomplete flower | A flower which lacks one or more of the floral parts
🗑
|
||||
| Perfect flower | A flower which has male and female floral structures in the same flower (wheat)
🗑
|
||||
| Imperfect flower | A flower which lacks the male or female floral stuctures
🗑
|
||||
| Sexual Reproduction | Sperm carried in the pollen from the male part of a flower & fuses with the egg in the female part of the flower.
🗑
|
||||
| Pollination | Transfer of pollen from the male to the female part of the plant.
🗑
|
||||
| Self-pollination | Pollen of a plant pollinates a flower of the same plant (cotton can self- and cross pollinate)
🗑
|
||||
| Cross-pollination | Pollen of one plant pollinates another plant
🗑
|
||||
| Hybrid | The progeny of two genetically different plants of the same species (corn)
🗑
|
||||
| Common pollinators | Wind, water, insects, mammals, birds
🗑
|
||||
| Perianth: | Sepals plus the petals
🗑
|
||||
| Corolla: | Collective term for petals
🗑
|
||||
| Calyx: | Collective term for sepals
🗑
|
||||
| Peduncle: | Stem supporting flower
🗑
|
||||
| Stamen: | Anther + filament (male)
🗑
|
||||
| Pistil: | Stigma + ovary + ovule
🗑
|
||||
| Monoecious plant | A plant species having separate male and female flowers on the same plant (corn)
🗑
|
||||
| Dioecious plant | A plant species having male and female flowers that are on separate plants (Palmer amaranth)
🗑
|
||||
| Inflorescence Types | Spike (Ryegrass), Raceme (Bahaiagrass), Panicle (Johnsongrass), Umbel (Wild carrot), Head (Sunflower), Capitulum (Clover)
🗑
|
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.
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.
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.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
klr0021
Popular Agriculture sets