Abstract
To discuss the relationship between mineral nutrient and pear fruit calyx persistency or shedding,the pear cultivar‘Dangshan Suli’was used as experiment materials,and the mineral elements contents in fruitlet and its calyx were tested during 5 d to 25 d after full bloom,the demand on different mineral elements for the young fruit and sepals growth were studied.The effect of Fe to fruit sepal’s growth was discussed by spraying of GA3,PP333 and FeSO4 at the full bloom stage.The correlation analysis was carried out in mineral and chlorophyll contents in fruitlet sepals.The results showed that the Fe content difference between in fruitlet and in its calyx whose Fe content was 6.13 times higher than that in fruitlet was the biggest among the tested nine mineral elements.During the sepal developing process, the iron demands were obviously higher than the fruitlets but at the same time of less demands for other mineral elements.The percentage of calyx persistency fruit,Fe content in fruitlet and its calyx were all increased under the spraying of 400 mg·L -1 GA3.On the contrary,the percentage of calyx persistency fruit and the Fe content were decreased under the treatment of 2 500 mg·L -1 PP333,otherwisely,the calyx persistency fruit percentage was increased after spraying 0.3%FeSO4 solution too.So it was postulated that the sufficient Fe content was the guarantees to both fruit calyx development and the fruit calyx persistency.There was a positive correlation between Fe and Chl.a content dynamic changes in fruitlet calyx,it indicated that the abundant of Fe was probably used for Chl.a synthesis.
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Claims 8
Claim · model-written summary
Calyx Fe content was 6.13 times that of fruitlets.
- Taxon
- Pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communist0 - Organ / stage
- calyxe0
- Outcome
- Fe contente0
- Direction
- highere0
- Value
- 6.13 timese0
- Comparator
- fruitlete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“the Fe content difference between in fruitlet and in its calyx whose Fe content was 6.13 times higher than that in fruitlet was the biggest among the tested nine mineral elements”
t0“Pear”
Claim · model-written summary
Developing sepals required more iron but fewer other minerals than fruitlets.
- Taxon
- PearPyrus communist0
- Outcome
- iron demandse0
- Direction
- highere0
- Comparator
- fruitletse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the iron demands were obviously higher than the fruitlets but at the same time of less demands for other mineral elements”
t0“Pear”
Claim · model-written summary
GA3 spraying increased calyx persistence and Fe content.
- Taxon
- PearPyrus communist0
- Treatment
- spraying of 400 mg·L -1 GA3e0
- Outcome
- percentage of calyx persistency fruit,Fe content in fruitlet and its calyxe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of calyx persistency fruit,Fe content in fruitlet and its calyx were all increased under the spraying of 400 mg·L -1 GA3.”
t0“Pear”
Claim · model-written summary
PP333 treatment decreased calyx persistence and Fe content.
- Taxon
- PearPyrus communist0
- Treatment
- treatment of 2 500 mg·L -1 PP333e0
- Outcome
- percentage of calyx persistency fruit and the Fe contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the percentage of calyx persistency fruit and the Fe content were decreased under the treatment of 2 500 mg·L -1 PP333”
t0“Pear”
Claim · model-written summary
FeSO4 spraying increased calyx persistence.
- Taxon
- PearPyrus communist0
- Treatment
- spraying 0.3%FeSO4 solutione0
- Outcome
- calyx persistency fruit percentagee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the calyx persistency fruit percentage was increased after spraying 0.3%FeSO4 solution too”
t0“Pear”
Claim · model-written summary
Fe and chlorophyll a contents were positively correlated in fruitlet calyx.
- Taxon
- PearPyrus communist0
- Organ / stage
- fruitlet calyxe0
- Compound
- Fee0
- Outcome
- Chl.a content dynamic changese0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a positive correlation between Fe and Chl.a content dynamic changes in fruitlet calyx”
t0“Pear”
Claim · model-written summary
Authors proposed that sufficient Fe supports calyx development and persistence.
- Taxon
- PearPyrus communist0
- Compound
- Fee0
- Outcome
- fruit calyx development and the fruit calyx persistencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was postulated that the sufficient Fe content was the guarantees to both fruit calyx development and the fruit calyx persistency”
t0“Pear”
Claim · model-written summary
Authors suggested abundant Fe may be used for chlorophyll a synthesis.
- Taxon
- PearPyrus communist0
- Compound
- Fee0
- Outcome
- Chl.a synthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the abundant of Fe was probably used for Chl.a synthesis”
t0“Pear”
The same questions in other papers
application · nutrient: content · Pyrus communis (pear)Positive and negative results
26 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
25 papers more in this group
See all 29 papers →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.