Abstract
The cytological characteristics of diploid Psathyrostachy juncea and tetraploid Psathyrostachy juncea Nevski.cv.Mengnong No.4 were analyzed.The results showed that the chromosome numbers of tetraploid plant are 28(2n=4x=28),the chromosome numbers of diploid plant are 14(2n=2x=14).Tetraploid plant was characterized by the increase in length and width of leaf,also by the increase in length and width of stomas but the decrease in the density of stomas and trichomes,also there were significant differences between tetraploid and diploid(P0.01).There were considerable variation in length,width,density of stomas and the density of both diploid and tetraploid,among them there was the least variation in the length of leaf upper epidermis stomas(6.57%),there was the biggest variation in the density of leaf lower trichomes(17.58%).
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Claims 7
Claim · model-written summary
Tetraploid plants had 28 chromosomes.
- Taxon
- Psathyrostachys juncea
Psathyrostachys junceae1 - Material
- tetraploid plante0
- Outcome
- 28(2n=4x=28)e0
- Value
- 28(2n=4x=28)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tetraploid plant are 28(2n=4x=28)”
e1“Psathyrostachys juncea.”
Claim · model-written summary
Diploid plants had 14 chromosomes.
- Taxon
- Psathyrostachys junceaPsathyrostachys junceae1
- Material
- diploid plante0
- Outcome
- 14(2n=2x=14)e0
- Value
- 14(2n=2x=14)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“diploid plant are 14(2n=2x=14)”
e1“Psathyrostachys juncea.”
Claim · model-written summary
Tetraploids had greater leaf length and width than diploids.
- Taxon
- Psathyrostachys junceaPsathyrostachys junceae1
- Material
- Tetraploid plante0
- Outcome
- length and width of leafe0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tetraploid plant was characterized by the increase in length and width of leaf”
e1“Psathyrostachys juncea.”
Claim · model-written summary
Tetraploids had greater stomatal length and width.
- Taxon
- Psathyrostachys junceaPsathyrostachys junceae1
- Outcome
- length and width of stomase0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in length and width of stomas”
e1“Psathyrostachys juncea.”
Claim · model-written summary
Tetraploids had lower stomatal and trichome density.
- Taxon
- Psathyrostachys junceaPsathyrostachys junceae1
- Outcome
- density of stomas and trichomese0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decrease in the density of stomas and trichomes”
e1“Psathyrostachys juncea.”
Claim · model-written summary
Variation was least for upper epidermis stomatal length at 6.57%.
- Taxon
- Psathyrostachys junceaPsathyrostachys junceae1
- Outcome
- length of leaf upper epidermis stomase0
- Direction
- leaste0
- Value
- 6.57%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“least variation in the length of leaf upper epidermis stomas(6.57%)”
e1“Psathyrostachys juncea.”
Claim · model-written summary
Variation was greatest for lower leaf trichome density at 17.58%.
- Taxon
- Psathyrostachys junceaPsathyrostachys junceae1
- Outcome
- density of leaf lower trichomese0
- Direction
- biggeste0
- Value
- 17.58%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biggest variation in the density of leaf lower trichomes(17.58%)”
e1“Psathyrostachys juncea.”