Claim · model-written summary
Under severe drought, leaf and stalk injury reduced yield less than in normal seasons.
Zea mays subsp. maysVerbatim
e0“Severe drouth in 1930 caused moisture to become the limiting factor so that leaf and stalk injuries did not result in as great a decrease in yield as in normal seasons”
t0“corn plant”
Title
The effect of injury in imitation of hail damage on the development of the corn plant
J. C. Eldredge Iowa State University Digital Repository (Iowa State University) 1935
Other claims from this paper (19)
- Intervention effect Total leaf removal reduced corn yield in proportion to unrolled leaf percentage.
- Intervention effect Total leaf removal caused 9 percent yield reduction in early June.
- Intervention effect Total leaf removal caused 100 percent yield reduction near July 20 before tasseling.
- Intervention effect Severe shredding reduced early-June yield by 2 percent.
- Intervention effect Severe shredding caused 50 percent yield reduction before tasseling.
- Intervention effect Removing one-third of leaves caused 30 percent yield reduction at tasseling-silking.
- Intervention effect Removing two-thirds of leaves caused 70 percent yield reduction at tasseling-silking.
- Intervention effect Removing half of each leaf before tasseling reduced yield 27 percent.
- Intervention effect Removing half of each leaf at full tasseling reduced yield 33 percent.
- Intervention effect Removing half of each leaf at milk stage reduced yield 13 percent.
- Intervention effect Minor leaf injuries did not significantly decrease yield.
- Intervention effect Severe bruising of stalks and ears before tasseling reduced yield 20 percent.
- Intervention effect Combined bruising and shredding reduced yield 64 percent before tasseling.
- Intervention effect Combined bruising and shredding reduced yield 77 percent at tasseling.
- Intervention effect Corn strains did not significantly differ in yield reduction from severe shredding.
- Intervention effect In June drought, injured plots yielded somewhat more than checks.
- Intervention effect Leaf and stalk injury usually caused little reduction in kernel development by bushel test weight.
- Intervention effect Ear bruising produced 2 to 3 percent damaged kernels.
- Intervention effect Injury before tasseling increased smutted plants; other corn diseases showed no noticeable increase.
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Hordeum vulgare