Yellowing Corn in an Old Hops Yard: Quiz 2
CS1: Yellowing Corn in a Hops Yard #2
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Begin narrowing down the possible causes at this stage in the process. Some causes may be able to be eliminated, or not.
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Question 1 of 5
1. Question
7 pointsFrom the following, select observations made from the field scale.
Correct
Incorrect
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Question 2 of 5
2. Question
4 pointsWhich row(s) showed chlorosis? You may select multiple answers.
Correct
Incorrect
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Question 3 of 5
3. Question
4 pointsWhich row(s) showed reduced growth? You may select multiple answers.
Correct
Incorrect
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Question 4 of 5
4. Question
3 pointsStanding water was observed between which rows? You may select multiple answers.
Correct
Standing water was observed along the drip lines, which were layed between rows 1 and 2 and 3 and 4.Incorrect
Standing water was observed along the drip lines, which were layed between rows 1 and 2 and 3 and 4. -
Question 5 of 5
5. Question
4 pointsSo far at the Field scale, you have made several observations about the pattern of symptoms within the field. Using the following list, select one word per parentheses to accurately describe the pattern.
- Row 1 height was (normal/short) and colored (green/yellow)
- Interspace was (dry/wet) and had (salts/no salts) at the soil surface
- Row 2 height was (normal/short) and colored (green/Yellow)
- Interspace was (dry/wet) and had (salts/no salts) at the soil surface
- Row 3 height was (normal/short) and colored (green/yellow)
- Interspace was (dry/wet) and had (salts/no salts) at the soil surface
- Row 4 height was (normal/short) and colored (green/Yellow)
Correct
Typically, plant height and color are linked together. A plant with a normal height would be green and a stunted plant would be yellow. This is not the case in this particular field, as we see normal plant heights in rows 1 and 4, but these rows are chlorotic. Rows 2 and 3 are short but still green.
In some places along the drip lines, between rows 1 and 2, and again between 3 and 4, there is standing water as well as a build-up of salts. The interspace between rows 2 and 3 is dry and does not show salt accumulation at the soil surface.
Incorrect
Typically, plant height and color are linked together. A plant with a normal height would be green and a stunted plant would be yellow. This is not the case in this particular field, as we see normal plant heights in rows 1 and 4, but these rows are chlorotic. Rows 2 and 3 are short but still green.
In some places along the drip lines, between rows 1 and 2, and again between 3 and 4, there is standing water as well as a build-up of salts. The interspace between rows 2 and 3 is dry and does not show salt accumulation at the soil surface.