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Effect of solar heating on viability of Potamogeton crispus L.turion buds by transparent and black polyethylene sheets.
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Abstract: Dormant propagules (turions) of curlypond weed Potamogeton crispus L. are principal for weed persistence and survival. In Egypt, laboratory (out-doors) and field experiments were carried out
at Bahteem during summer months 1999 and 2000, to study the response of turions to solarization (solar heating). Maximum moistened (M) soil temperature under plastic cover (TPES, BPES) and UC at 5 cm depth averaged 63, 52 and 40 ˚C in June,65, 54 and 41 ˚C in July as well as 59, 49 and 38 ˚C in August, respectively. No sprouts of Potamogeton crispus L. emerged from turions during solarization. The effect of solar heating decreased with increasing soil depth. Higher temperature as well as solar heating effect was produced by TPES than by BPES. Under Egypt conditions, the effect of solarization on viability of turions took place 3 days through out-doors, while under field experiment, the effect took place 5 days. Soil solarization is considered one of the novel, non pollution and non-chemical methods for controlling Potamogeton crispus L. turions by using TPES during July and August for 5 days in the small irrigation canals (2 m wide) in Egypt.
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| Publication year |
2001
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| Pages |
351 – 366
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| Organization Name |
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| serial title |
Bull. Fac. Agric., Cairo Univ.
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| Author(s) from ARC |
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| Agris Categories |
Weeds and weed control
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| Proposed Agrovoc |
Potamogeton crispus L;black polyethylene sheets;transparent;solarization;
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| Publication Type |
Journal
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