Claim · model-written summary
Significant differences in tomato dry weight and fruit number between weed-infested and weed-free plots were not apparent until 56 to 70 days after transplanting.
Solanum lycopersicumVerbatim
e2“A growth analysis revealed that significant differences in plant dry weight and fruit number between tomatoes from weed-free and weed-infested plots were not apparent until 56 to 70 days after transplanting”
Title
Susan E. Weaver; Chin S. Tan Weed Science 1983. doi:10.1017/s0043174500069423
Other claims from this paper (7)
- Observation The critical period of weed interference in transplanted tomatoes was 28 to 35 days after transplanting.
- Intervention effect A single weeding within the critical period was sufficient to prevent tomato yield reductions.
- Association A shorter initial weed-free period, or longer weed presence before removal, brought earlier reductions in tomato dry weight and fruit number.
- Mechanism Weed interference on tomato was due primarily to shading rather than water stress.
- Intervention effect Stomatal conductance was significantly lower in weed-infested than in weed-free tomatoes.
- Intervention effect Xylem-pressure potential and canopy temperature did not differ between weed-infested and weed-free tomatoes.
- Intervention effect Stomatal conductance was not significantly reduced when tomatoes were kept weed-free for more than 28 days or weeds were present for less than 28 days.