Survival and growth of woody plant seedlings in the understorey of floodplain forests in South Carolina

Woody plant herbicide screening techniques were evaluated to expedite the screening process and decrease amounts of herbicide active ingredient required. Rapid greenhouse screening of woody plant seedlings was performed in less than 6 months, and rapid seed screening was performed in less than 20 days. A traditional field screen, requiring 10 months from application to final evaluation, was performed for comparison and regression modeling purposes. Imazapyr and triclopyr were used as test chemicals and linear regressions were generated to predict traditional field screen results from rapid screens. Significant regressions were produced that predicted field responses of loblolly pine, sweetgum, and yellow-poplar with the use of both herbicides and either rapid screening technique. This indicated that rapid screening techniques could determine herbicide efficacy and/or species spectrum in much less time with significantly less herbicide. Rapid greenhouse screens of triclopyr produced more statistically significant regressions than those using imazapyr. Rapid seed screens could estimate species spectrum within 5 days after treatment. These results indicate that rapid greenhouse screen and rapid seed screen techniques can provide woody plant herbicide developers initial efficacy and spectrum of control data in a cost- and-time effective manner.

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Woody Plant Regeneration in Four Floodplain Forests

Ecological Monographs ◽

10.2307/2937166 ◽

1994 ◽

Vol 64 (3) ◽

pp. 345-367 ◽

Cited By ~ 130

Author(s):

Robert H. Jones ◽

Rebecca R. Sharitz ◽

Philip M. Dixon ◽

Debra S. Segal ◽

Rebecca L. Schneider

Keyword(s):

Plant Regeneration ◽

Woody Plant ◽

Floodplain Forests

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Effect of root competition and shade on survival and growth of nine woody plant taxa within a pecan [Carya illinoinensis (Wangenh.) C. Koch] alley cropping system

Agroforestry Systems ◽

10.1007/s10457-012-9507-7 ◽

2012 ◽

Vol 86 (1) ◽

pp. 49-60 ◽

Cited By ~ 4

Author(s):

Edward H. Fletcher ◽

Mack Thetford ◽

Jyotsna Sharma ◽

Shibu Jose

Keyword(s):

Woody Plant ◽

Alley Cropping ◽

Cropping System ◽

Carya Illinoinensis ◽

Root Competition ◽

Survival And Growth

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Effect of Crown Scorch on Survival And Growth of Young Loblolly Pine

Southern Journal of Applied Forestry ◽

10.1093/sjaf/8.1.35 ◽

1984 ◽

Vol 8 (1) ◽

pp. 35-40 ◽

Cited By ~ 13

Author(s):

Thomas A. Waldrop ◽

David H. Van Lear

Keyword(s):

South Carolina ◽

Pinus Taeda ◽

Loblolly Pine ◽

Threshold Value ◽

Fire Intensity ◽

Crown Scorch ◽

Different Seasons ◽

Survival And Growth ◽

Pinus Taeda L ◽

Bark Char

Abstract Unthinned, pole-size loblolly pine (Pinus taeda L.) plantations in the South Carolina Piedmont were burned at different seasons under minimal wind conditions to evaluate the effects of fire intensity on crown scorch. Needle drop, an indicator of crown scorch, was significantly greater on areas burned with medium- to high-intensity fires than on unburned plots. There was a direct relation between bark char height, beyond a threshold value of 3 feet, and crown scorch. Scorched needles fell within three weeks following fire. Moderate crown scorch had no detrimental effects on survival and growth of trees in the upper crown classes. Complete crown scorch resulted in the death of 20 and 30 percent of trees in the codominant and intermediate crown classes, respectively.

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