Abstract
Taking cut flower chrysanthemum 'Baima' as test material, a pot experiment was conducted to study the effects of controlled-release fertilizer on the leaf chlorophyll fluorescence parameters, chlorophyll and nutrient contents, and ornamental quality of chrysanthemum. Under no fertilization, the maximal photochemical efficiency of PS II in dark (F(v)/F(m)), potential photochemical efficiency of PS II (F(v)/F(0)), and quantum yield of PS II electron transport (phi(PS II)) decreased significantly, compared with those under fertilization. With the application of conventional compound fertilizers CCFA (N:P:K=20:8:10) and CCFB (N:P:K= 14:14:14), the F(v)/F(m), F(v)/F(0) and phi(PS II) had a slight increase in early period (30-60 d) but a remarkable decrease in mid and later periods (75 - 120 d), compared with those under the application of controlled-release fertilizers CRFA (N:P:K = 20:8:10) and CRFB (N:P:K= 14:14:14). Under the application of CRFA, the F(v)/F(m), phi(PS II), and photochemical quenching (q(P)) had somewhat increase, as compared with the application of CRFB. The non-photochemical quenching (NPQ) under the application of CRFA and CRFB decreased significantly, compared with that under the application of CCFA and CCFB and the control. The chlorophyll content had a similar change trend with F(v)/F(m), F(v)/F(0), and phi(PS II). The leaf N, P, and K contents, flower stalk length and stalk diameter, flower diameter, and flower fresh and dry mass at harvest stage all increased under the application of CRFA and CRFB, compared with those under the application of CCFA and CCFB and the control, and the flower fresh and dry mass was significantly higher under the application of CRFA than of CRFB. This study showed that controlled-release fertilizer could improve the ornamental quality of chrysanthemum via improving the leaf chlorophyll content, photochemical transduction rate, and nutrient uptake, and CRFA had better effects than CRFB.
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Claims 11
Claim · model-written summary
Without fertilizer, three PS II fluorescence efficiency measures decreased significantly relative to fertilization.
- Taxon
- chrysanthemum
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Chrysanthemumt0 - Treatment
- no fertilizatione0
- Outcome
- maximal photochemical efficiency of PS II in dark (F(v)/F(m)), potential photochemical efficiency of PS II (F(v)/F(0)), and quantum yield of PS II electron transport (phi(PS II))e0
- Direction
- decreasede0
- Comparator
- fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Under no fertilization, the maximal photochemical efficiency of PS II in dark (F(v)/F(m)), potential photochemical efficiency of PS II (F(v)/F(0)), and quantum yield of PS II electron transport (phi(PS II)) decreased significantly, compared with those under fertilization.”
t0“chrysanthemum”
Claim · model-written summary
Conventional fertilizers caused a slight increase in fluorescence metrics versus controlled-release fertilizers during early period (30-60 d).
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- conventional compound fertilizers CCFA (N:P:K=20:8:10) and CCFB (N:P:K= 14:14:14)e0
- Outcome
- F(v)/F(m), F(v)/F(0) and phi(PS II)e0
- Direction
- slight increasee0
- Qualifier
- early period (30-60 d)e0
- Comparator
- controlled-release fertilizers CRFA (N:P:K = 20:8:10) and CRFB (N:P:K= 14:14:14)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the application of conventional compound fertilizers CCFA (N:P:K=20:8:10) and CCFB (N:P:K= 14:14:14), the F(v)/F(m), F(v)/F(0) and phi(PS II) had a slight increase in early period (30-60 d) but a remarkable decrease in mid and later periods (75 - 120 d), compared with those under the application of controlled-release fertilizers CRFA (N:P:K = 20:8:10) and CRFB (N:P:K= 14:14:14).”
t0“chrysanthemum”
Claim · model-written summary
Conventional fertilizers caused a remarkable decrease in fluorescence metrics versus controlled-release fertilizers during mid and later periods (75 - 120 d).
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- conventional compound fertilizers CCFA (N:P:K=20:8:10) and CCFB (N:P:K= 14:14:14)e0
- Outcome
- F(v)/F(m), F(v)/F(0) and phi(PS II)e0
- Direction
- remarkable decreasee0
- Qualifier
- mid and later periods (75 - 120 d)e0
- Comparator
- controlled-release fertilizers CRFA (N:P:K = 20:8:10) and CRFB (N:P:K= 14:14:14)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the application of conventional compound fertilizers CCFA (N:P:K=20:8:10) and CCFB (N:P:K= 14:14:14), the F(v)/F(m), F(v)/F(0) and phi(PS II) had a slight increase in early period (30-60 d) but a remarkable decrease in mid and later periods (75 - 120 d), compared with those under the application of controlled-release fertilizers CRFA (N:P:K = 20:8:10) and CRFB (N:P:K= 14:14:14).”
t0“chrysanthemum”
Claim · model-written summary
CRFA somewhat increased F(v)/F(m), phi(PS II) and q(P) versus CRFB.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- CRFAe0
- Outcome
- F(v)/F(m), phi(PS II), and photochemical quenching (q(P))e0
- Direction
- somewhat increasee0
- Comparator
- CRFBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the application of CRFA, the F(v)/F(m), phi(PS II), and photochemical quenching (q(P)) had somewhat increase, as compared with the application of CRFB.”
t0“chrysanthemum”
Claim · model-written summary
CRFA and CRFB significantly decreased NPQ relative to conventional fertilizers and the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- CRFA and CRFBe0
- Outcome
- non-photochemical quenching (NPQ)e0
- Direction
- decreasede0
- Comparator
- CCFA and CCFB and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The non-photochemical quenching (NPQ) under the application of CRFA and CRFB decreased significantly, compared with that under the application of CCFA and CCFB and the control.”
t0“chrysanthemum”
Claim · model-written summary
Chlorophyll content followed the same trend as the PS II fluorescence measures.
- Taxon
- chrysanthemumChrysanthemumt0
- Outcome
- chlorophyll contente0
- Comparator
- F(v)/F(m), F(v)/F(0), and phi(PS II)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chlorophyll content had a similar change trend with F(v)/F(m), F(v)/F(0), and phi(PS II).”
t0“chrysanthemum”
Claim · model-written summary
CRFA and CRFB increased leaf N, P, and K contents versus conventional fertilizers and the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Organ / stage
- harvest stagee0
- Treatment
- CRFA and CRFBe0
- Outcome
- leaf N, P, and K contentse0
- Direction
- increasede0
- Comparator
- CCFA and CCFB and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf N, P, and K contents, flower stalk length and stalk diameter, flower diameter, and flower fresh and dry mass at harvest stage all increased under the application of CRFA and CRFB, compared with those under the application of CCFA and CCFB and the control, and the flower fresh and dry mass was significantly higher under the application of CRFA than of CRFB.”
t0“chrysanthemum”
Claim · model-written summary
CRFA and CRFB increased flower stalk length and stalk diameter, flower diameter versus conventional fertilizers and the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Organ / stage
- harvest stagee0
- Treatment
- CRFA and CRFBe0
- Outcome
- flower stalk length and stalk diameter, flower diametere0
- Direction
- increasede0
- Comparator
- CCFA and CCFB and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf N, P, and K contents, flower stalk length and stalk diameter, flower diameter, and flower fresh and dry mass at harvest stage all increased under the application of CRFA and CRFB, compared with those under the application of CCFA and CCFB and the control, and the flower fresh and dry mass was significantly higher under the application of CRFA than of CRFB.”
t0“chrysanthemum”
Claim · model-written summary
CRFA and CRFB increased flower fresh and dry mass versus conventional fertilizers and the control.
- Taxon
- chrysanthemumChrysanthemumt0
- Organ / stage
- harvest stagee0
- Treatment
- CRFA and CRFBe0
- Outcome
- flower fresh and dry masse0
- Direction
- increasede0
- Comparator
- CCFA and CCFB and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf N, P, and K contents, flower stalk length and stalk diameter, flower diameter, and flower fresh and dry mass at harvest stage all increased under the application of CRFA and CRFB, compared with those under the application of CCFA and CCFB and the control, and the flower fresh and dry mass was significantly higher under the application of CRFA than of CRFB.”
t0“chrysanthemum”
Claim · model-written summary
CRFA produced significantly higher flower fresh and dry mass than CRFB.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- CRFAe0
- Outcome
- flower fresh and dry masse0
- Direction
- highere0
- Comparator
- CRFBe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf N, P, and K contents, flower stalk length and stalk diameter, flower diameter, and flower fresh and dry mass at harvest stage all increased under the application of CRFA and CRFB, compared with those under the application of CCFA and CCFB and the control, and the flower fresh and dry mass was significantly higher under the application of CRFA than of CRFB.”
t0“chrysanthemum”
Claim · model-written summary
Authors conclude that controlled-release fertilizer improves ornamental quality through chlorophyll, photochemical transduction and nutrient uptake.
- Taxon
- chrysanthemumChrysanthemume0
- Treatment
- controlled-release fertilizere0
- Outcome
- ornamental qualitye0
- Direction
- improvee0
- Qualifier
- leaf chlorophyll content, photochemical transduction rate, and nutrient uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“controlled-release fertilizer could improve the ornamental quality of chrysanthemum via improving the leaf chlorophyll content, photochemical transduction rate, and nutrient uptake”
The same questions in other papers
fertilization · physiology: photosynthesis · ChrysanthemumPositive and negative results
2 in the opposite direction
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.