Abstract
In this study, germination characteristics and herbicidal response of green kyllinga(Kyllinga brevifolia var. leiolepsis H.) were investigated. The storage method desirable for a rapid dormancy release was to keep the seed under low temp. and wetting condition for one to two months, or high temp() and drying condition for three months. The dormancy of rhizome was hardly observed. The optimum temperature for germination of seed and rhizome was around and 16-, repectively. The germination of dormancy-breaked seed was completely dependent on light. Shoot emergence ratio(%) was decreased with increase of planting depth ; for example, only 18% of rhizome segments planted in the depth of 4cm under soil surface emerged above soil surface. Flooding at earlier growth stage resulted in significant decrease in shoot emergence as well as in dry weight. The germinablity of rhizome was almost lost as a decreased in fresh weight reached to 50%. Usually, green kyllinga was sensitive to herbicides such as bentazone, bensulfuron and benfuresate etc. which were known to be effective in Cyperaceae weeds, indicating that green kyllinga can be used as a representative plant in the screening of herbicides for Cyperus weeds.
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Claims 9
Claim · model-written summary
Cold wet storage for one to two months or hot dry storage for three months was desirable for rapid seed dormancy release.
Verbatim
e0“The storage method desirable for a rapid dormancy release was to keep the seed under low temp. and wetting condition for one to two months, or high temp() and drying condition for three months”
t0“green kyllinga”
Claim · model-written summary
Rhizome dormancy was hardly observed.
Verbatim
e0“The dormancy of rhizome was hardly observed”
t0“green kyllinga”
Claim · model-written summary
The optimum temperature for seed and rhizome germination differed; only the rhizome value is legible.
Verbatim
e0“The optimum temperature for germination of seed and rhizome was around and 16-, repectively”
t0“green kyllinga”
Claim · model-written summary
Dormancy-broken seed germination depended completely on light.
Verbatim
e0“The germination of dormancy-breaked seed was completely dependent on light”
t0“green kyllinga”
Claim · model-written summary
Shoot emergence fell with greater planting depth, with 18% at 4 cm.
Verbatim
e0“Shoot emergence ratio(%) was decreased with increase of planting depth ; for example, only 18% of rhizome segments planted in the depth of 4cm under soil surface emerged above soil surface”
t0“green kyllinga”
Claim · model-written summary
Early flooding significantly decreased shoot emergence and dry weight.
- Taxon
- green kyllingat0
- Treatment
- Flooding at earlier growth stagee0
- Outcome
- shoot emergence as well as in dry weighte0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“Flooding at earlier growth stage resulted in significant decrease in shoot emergence as well as in dry weight”
t0“green kyllinga”
Claim · model-written summary
Rhizome germinability was nearly lost when fresh weight fell by 50%.
Verbatim
e0“The germinablity of rhizome was almost lost as a decreased in fresh weight reached to 50%”
t0“green kyllinga”
Claim · model-written summary
Green kyllinga was sensitive to bentazone, bensulfuron and benfuresate.
- Taxon
- green kyllingae0
- Treatment
- bentazone, bensulfuron and benfuresatee0
- Outcome
- sensitive to herbicidese0
Not reportedComparatorDirection
Verbatim
e0“green kyllinga was sensitive to herbicides such as bentazone, bensulfuron and benfuresate etc.”
Claim · model-written summary
The authors propose green kyllinga as a screening plant for Cyperus weed herbicides.
Verbatim
e0“green kyllinga can be used as a representative plant in the screening of herbicides for Cyperus weeds”