The influence of population density of thorn-apple on plant mass and maize yield
2000
Tesic, M. (ZENECA Yugoslavia d.o.o., Beograd (Serbia and Montenegro)) | Sinzar, B. | Zivanovic, M.
The study shows the results of competitive effect of thorn-apple (Datura stramonium L.) on maize crops depending on its population growth. As a consequence, there has been a significant maize decrease in height, as well as reduction of stem, leaf and leaf folder mass, green area index and maize yield. The more increased thorn-apple population from 5 to 10, 15 and 20 units per 1 square meter was, the more intense competitive impact was, which results in decrease of all investigated parameters. The least average decrease is shown in the maize stem height and is 5.7% in relation to the control. Afterwards average decrease of yield by 25.6% followed the reduction of stalk mass by 26.3%, and leaf folder mass by 28.1%. Average reduction of green leaf area was 17.7%, in the phase of 9-11 maize leaves up to 35.3%, in the phase of full maturity of the maize seed.
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