Abstract
In order to study the influence of different types of N fertilizers on grapevine (Vitis labruscana ‘Black Summer’) trees were used as experiment materials and fertilizers foliar application trails were conducted in the flowering and veraison stages. The expression levels of five grapevine N metabolic genes, including VvGHD, VvNiR, VvNR, VvGS and VvAS, were analyzed, some physiological traits including the flower and fruit dropping rate, leaves and shoots growth rate, chlorophyll content and the fruit size of grape berry were also investigated. The results showed that, in general, the expression levels of the five N metabolic genes were increased after foliar applied different types of N fertilizers in the two periods. N metabolic genes showed similar expression patterns toward the same type of fertilizer in the two periods, whereas foliar applied different types of N fertilizers, their expression patterns changed. Moreover, the N fertilizer which had stronger and longer influence on the N metabolic genes could enhance the physiology traits more dramatically. Given the gene expression levels and the changes of physiology traits, we conclude that urea and ammonium nitrate have the best effect on grapevine; calcium nitrate can help to reduce the flower and berry dropping rate; ammonium sulphate and sodium nitrate have relatively poor effects on grapevine.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Foliar nitrogen fertilizers generally increased expression of five nitrogen metabolic genes in flowering and veraison.
- Material
- ‘Black Summer’e7
- Treatment
- different types of N fertilizerse1
- Gene
- VvGHD, VvNiR, VvNR, VvGS and VvASe2
- Outcome
- expression levels of the five N metabolic genese1
- Direction
- increasede1
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e1“The results showed that, in general, the expression levels of the five N metabolic genes were increased after foliar applied different types of N fertilizers in the two periods.”
e2“including VvGHD, VvNiR, VvNR, VvGS and VvAS”
Claim · model-written summary
The same fertilizer type produced similar nitrogen metabolic gene expression patterns in both periods.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“N metabolic genes showed similar expression patterns toward the same type of fertilizer in the two periods”
Claim · model-written summary
Different nitrogen fertilizer types changed nitrogen metabolic gene expression patterns.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“whereas foliar applied different types of N fertilizers, their expression patterns changed.”
Claim · model-written summary
Fertilizers with stronger and longer effects on nitrogen metabolic genes enhanced physiological traits more dramatically.
- Treatment
- N fertilizere0
- Outcome
- physiology traitse0
- Direction
- enhancee0
- Qualifier
- stronger and longer influence on the N metabolic genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“Moreover, the N fertilizer which had stronger and longer influence on the N metabolic genes could enhance the physiology traits more dramatically.”
Claim · model-written summary
The authors judged urea to have the best effect on grapevine.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“we conclude that urea and ammonium nitrate have the best effect on grapevine”
Claim · model-written summary
The authors judged ammonium nitrate to have the best effect on grapevine.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“we conclude that urea and ammonium nitrate have the best effect on grapevine”
Claim · model-written summary
Calcium nitrate reduced flower and berry dropping rates.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“calcium nitrate can help to reduce the flower and berry dropping rate”
Claim · model-written summary
Ammonium sulphate had relatively poor effects on grapevine.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“ammonium sulphate and sodium nitrate have relatively poor effects on grapevine.”
Claim · model-written summary
Sodium nitrate had relatively poor effects on grapevine.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“grapevine (Vitis labruscana ‘Black Summer’)”
e0“ammonium sulphate and sodium nitrate have relatively poor effects on grapevine.”
The same questions in other papers
fertilization · molecular: expression · VitisResults agree
1 paper in the same direction as this paper
- 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.