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Balloonvine Biology and Control in Soybeans - Auburn University ...

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CONTENTS<br />

INTRODUCTION .. .........................................<br />

Page<br />

3<br />

Classification, Description, <strong>and</strong> Distribution ........... 6<br />

Germ<strong>in</strong>ation <strong>and</strong> Seed Longevity ..................... 6<br />

Chemical <strong>Control</strong> ...............................<br />

MATERIALS AND METHODS .......... 7. ......................<br />

Germ<strong>in</strong>ation Tests..................................<br />

Moisture Stress ..................................<br />

Temperature ..................................<br />

7<br />

7<br />

7<br />

8<br />

8<br />

Scarification .................................. 8<br />

Oxygen ........................................<br />

8<br />

Growth <strong>and</strong> Development........................... 8<br />

Plant<strong>in</strong>g Depth .................................. 9<br />

Soil pH .........................................<br />

9<br />

Soil P <strong>and</strong> K ........... .................... 9<br />

<strong>Biology</strong> .............................<br />

Competition with <strong>Soybeans</strong> ....................... 10<br />

Herbicide Evaluation..............................10<br />

Soil-applied Herbicides ............................ 10<br />

Foliar Applications: Herbicides, Rates, <strong>and</strong><br />

Times of Application ............................<br />

Foliar Applications: Acifluorfen <strong>and</strong> Bentazon<br />

Rates <strong>and</strong> Frequency...........................11<br />

11<br />

<strong>Balloonv<strong>in</strong>e</strong> <strong>Control</strong> Systems ..................... 12<br />

RESULTS AND DISCUSSION ................................. 12<br />

Germ<strong>in</strong>ation Tests ................................. 12<br />

Scarification ....................... ............... 12<br />

Oxygen ............ ........................<br />

Moisture Stress .................................<br />

13<br />

13<br />

Temperature .................................<br />

Growth <strong>and</strong> Development..........................15<br />

Plant<strong>in</strong>g Depth ................................. 15<br />

Soil pH .................. . ..................... 16<br />

Soil P <strong>and</strong> K ............. ...................... 16<br />

<strong>Biology</strong> ........................................<br />

Competition with <strong>Soybeans</strong> ........................ 19<br />

Herbicide Evaluation ............................. 19<br />

Soil-applied Herbicides ........................... 19<br />

Foliar Applications: Herbicides, Rates, <strong>and</strong><br />

Times of Application ........................... 20<br />

Foliar Applications: Acifluorfen <strong>and</strong> Bentazon<br />

Rates <strong>and</strong> Frequency ........................... 20<br />

<strong>Balloonv<strong>in</strong>e</strong> <strong>Control</strong> Systems ...................... 20<br />

SUMMARY .................................................. 27<br />

LITERATURE CITED .............. ........................... 28<br />

APPENDIX .......................................................<br />

29<br />

FIRST PRINTING 3M, MARCH 1983<br />

Information conta<strong>in</strong>ed here<strong>in</strong> is available to all persons<br />

without regard to race, color, sex, or national orig<strong>in</strong>.<br />

9<br />

14<br />

17

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