Germination
____________ is the renewal of enzymatic activity that results in cell division and elongation, ultimately emergence through the seed coat.
What is germination?
What is the first vegatative stage and what happens at this stage?
What is VE (emergence) and the coleoptile pushes through the surface of the soil.
What does GDD stand for?
What is a growing degree day? (unit)
What is pH?
Corn is typically __________ pollinated; only 5% is self pollinated.
What is cross?
What is the first step in germination?
These roots become the main root system of the plant.
What are the nodal roots?
On average, corn need 22-30 inches of this per growing season to be successful.
What is rain?
This is one of the most common nutrient deficiencies seen in corn crops.
What is nitrogen deficiency?
What is the function of the leaf collar?
What is a transition between the blade and the sheath portion?
What is quiescence?
Vegetative stages are ceased at this stage, where the base of the tassel is visible.
What is the VT stage?
This is is an index procedure that was creates at Iowa State University in the 1970s, used to rate the soils for their potential ability to grow row crops.
What is CSR or Corn Suitability Rating?
______ is the yellowing of plant leaves due to a nutrient deficiency.
What is chlorosis?
This follows physiological maturity, forming a layer the tip of the kernel extending into the base.
What % moisture is needed in the field in order for a corn seed to begin germination?
What is 30%?
At this reproductive stage, kernels are larger, showing a yellowish color on the outside, with the inside having a milky texture, which is caused by accumulating starch
What is the R3, milk stage?
These states such as Indiana, Illinois, Iowa, Missouri, Nebraska, and Kansas have ideal climate, soils, and growing conditions for growing corn and soybeans are are in a location known as...
What is the corn belt?
This micronutrient deficiency has visible crimped, wrinkled leaf edges, with short bent ears. This deficiency is not popular in Iowa.
What is a boron deficiency?
_________ seed corn is the offspring of two pure genetic lines of corn, also known as inbred parents.
What is hybrid?
What is imbibing?
At this reproductive stage, kernels are small and white and filled with a clear liquid, and silks begin to darken in color. Kernels are about 85% water at this stage, which will gradually decrease until harvest.
What is the R2 blister stage?
CSR Ratings are scored by numbers ranging from...
What is 5-100?
This nutrient is needed for cell wall formations, helping neutralize toxins in crop, improves root absorption and helps soil maintain a favorable pH, and appears as steaky lesions and rolled leaves on a plant.
What is calcium?
This refers to how well a soil is able to resist change.
What is buffering capacity?