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| LEADER |
00000nmm a2200000Ia 4500 |
| 001 |
in00004782004 |
| 008 |
231116s1978 txu f u # eng d |
| 005 |
20240311193111.0 |
| 099 |
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|a HanulaJ 1978
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| 100 |
1 |
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|a Hanula, James L.
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| 245 |
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4 |
|a The Effect of Potassium Fertilization on Pales Weevil.
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| 264 |
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1 |
|a [College Station, Texas] :
|b Texas A&M University,
|c 1978.
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| 300 |
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|a 1 online resource (32 pages).
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| 336 |
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|a text
|b txt
|2 rdacontent
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| 337 |
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|a computer
|b c
|2 rdamedia
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| 338 |
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|a online resource
|b cr
|2 rdacarrier
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| 500 |
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|a Undergraduate thesis written for Program year: 1977-1978
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| 502 |
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|a University Undergraduate Fellows, sponsored by Forest Science Department.
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| 520 |
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|a The objective of this study was to determine the effect of potassium fertilizer on pales weevil (Hylobius pales, Herbst.) feeding. To accomplish this goal two species of pine seedlings, loblolly pine (Pinus taeda, L.) and slash pine (Pinus elliottii, Engelm.), were treated with four different fertilizer solutions with potassium concentrations of 0 ppm, 325 ppm and 430 ppm. Four seedlings, one from each of the four fertilizer treatments, and eight weevils were included in each replication of the experiment. Seedlings were exposed to weevil feeding for a two week period followed by evaluation of feeding damage which was measured in two ways: (1) an estimation of phloem tissue damage and (2) a pressure bomb determination of seedling stress. Also, the potassium content of the seedlings was determined by atomic absorption spectrophotometry. Foliar analysis revealed significant differences in potassium content did exist between treatments, but only small decreases in phloem tissue damage occurred with increased potassium content. Results from the pressure bomb measurement were highly variable and of little value.
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| 530 |
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|a Digitized from print version held at Pickle Center High Density Storage, HDR barcode A14850693657
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| 535 |
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|a HDR
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| 653 |
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|a pales weevil
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| 653 |
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|a phloem tissue damage
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| 653 |
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|a pine seedlings
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| 653 |
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|a potassium fertilizer
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| 653 |
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|a seedling stress
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| 655 |
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7 |
|a Undergraduate thesis
|2 local
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| 700 |
1 |
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|a Long, Ernest M.,
|e degree supervisor.
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| 856 |
4 |
0 |
|z Available on OAKTrust.
|u https://oaktrust.library.tamu.edu/handle/1969.1/CAPSTONE-HanulaJ_1978
|t 0
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| 887 |
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|a A14850693657
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| 999 |
f |
f |
|s e5d154c6-5cbc-45f8-b3df-a45727846471
|i 9a129cc2-a466-41b4-a4be-e49a3770e45b
|t 0
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| 952 |
f |
f |
|a Texas A&M University
|b College Station
|c Electronic Resources
|d Available Online
|t 0
|e HanulaJ 1978
|f Capstone
|g Electronic
|h Other scheme
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| 998 |
f |
f |
|a HanulaJ 1978
|t 0
|l Available Online
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