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A Technique for Studying Weed Competition in Forage Legume Establishment

Published online by Cambridge University Press:  12 June 2017

Marvin M. Schreiber
Marvin M. Schreiber*
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Department of Botany and Plant Pathology, Purdue University, Lafayette Indiana
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Abstract

A new technique designed for the study of various modes of weed competition has been developed and tested. It applies to almost all environmental conditions as they affect plant growth. The technique is adaptable to single factors and multiple factors in almost any combination. The only major restriction imposed by present dimensions is that only early competition can be studied.

The uniformity of seed used in closely controlled competition studies is extremely important. Heavy seeds of redroot pigweed (Amaranthus retroflexus L.) produced plants that brought about earlier and more intense shading than plants from light redroot pigweed seed. Applying an aluminized Mylar reflective surface on the inside of the aerial portion of the competition box increased the growth rate and development of species and shortened the time interval for experiments by 10 days.

Type
Research Article
Information
Weeds , Volume 15 , Issue 1 , January 1967 , pp. 1 - 4
Copyright
Copyright © 1967 Weed Science Society of America 

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References

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