Abstract
Background and Aims: Molybdenum deficiency(Mo-deficiency) has been suggested to be the cause of poor yield of own-rooted Merlot vines in Australia. The aims of these experiments were to quantify the effect of foliar molybdenum treatment (Mo-treatment) on vine molybdenum status and to identify which components of yield are affected by Mo-treatment. Methods and Results: Experiments were conducted on own-rooted Vitis vinifera cv. Merlot in South Australia in 2003–07. Vines were sprayed with two rates of sodium molybdate (0, 0.101 and 0.202 g/vine) in the spring. Vine molybdenum status was assessed at flowering and juice molybdenum concentration was measured at harvest. The effects of Mo-treatment on vine growth and yield were also measured. Mo-treatment significantly increased yield of molybdenum deficient vines, a function of improved fruitset. Mo-treatment significantly increased the concentration of molybdenum in the petioles, shoot tips and inflorescences compared with the controls. Budburst was delayed on molybdenum-treated vines in the spring following Mo-treatment. The concentration of molybdenum in grape juice only increased in vines that had sufficient molybdenum. Conclusions: Mo-treatment increased vine molybdenum status; however, yield only increased on Mo-deficient vines. The increase in yield was a function of improved fruitset. Significance of the Study: This research demonstrates a significant positive relationship between vine molybdenum status and fruitset of own-rooted Merlot vines.
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Claims 9
Claim · model-written summary
Molybdenum foliar treatment significantly raised yield of deficient Merlot vines.
- Taxon
- Vitis vinifera
Vitis viniferat0 - Treatment
- Mo-treatmente0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- molybdenum deficient vinese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo-treatment significantly increased yield of molybdenum deficient vines, a function of improved fruitset.”
t0“Vitis vinifera”
Claim · model-written summary
Molybdenum treatment improved fruit set of deficient vines, explaining yield increase.
- Taxon
- Vitis viniferaVitis viniferat0
- Treatment
- Mo-treatmente0
- Outcome
- fruitsete0
- Direction
- improvede0
- Qualifier
- molybdenum deficient vinese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo-treatment significantly increased yield of molybdenum deficient vines, a function of improved fruitset.”
t0“Vitis vinifera”
Claim · model-written summary
Molybdenum treatment significantly increased molybdenum concentration in petioles versus controls.
- Taxon
- Vitis viniferaVitis viniferat0
- Organ / stage
- petiolese0
- Treatment
- Mo-treatmente0
- Outcome
- concentration of molybdenume0
- Direction
- increasede0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo-treatment significantly increased the concentration of molybdenum in the petioles, shoot tips and inflorescences compared with the controls.”
t0“Vitis vinifera”
Claim · model-written summary
Molybdenum treatment significantly increased molybdenum concentration in shoot tips versus controls.
- Taxon
- Vitis viniferaVitis viniferat0
- Organ / stage
- shoot tipse0
- Treatment
- Mo-treatmente0
- Outcome
- concentration of molybdenume0
- Direction
- increasede0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo-treatment significantly increased the concentration of molybdenum in the petioles, shoot tips and inflorescences compared with the controls.”
t0“Vitis vinifera”
Claim · model-written summary
Molybdenum treatment significantly increased molybdenum concentration in inflorescences versus controls.
- Taxon
- Vitis viniferaVitis viniferat0
- Organ / stage
- inflorescencese0
- Treatment
- Mo-treatmente0
- Outcome
- concentration of molybdenume0
- Direction
- increasede0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mo-treatment significantly increased the concentration of molybdenum in the petioles, shoot tips and inflorescences compared with the controls.”
t0“Vitis vinifera”
Claim · model-written summary
Budburst was delayed in treated vines in the spring after molybdenum treatment.
- Taxon
- Vitis viniferaVitis viniferat0
- Treatment
- Mo-treatmente0
- Outcome
- Budburste0
- Direction
- delayede0
- Qualifier
- spring following Mo-treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Budburst was delayed on molybdenum-treated vines in the spring following Mo-treatment.”
t0“Vitis vinifera”
Claim · model-written summary
Grape juice molybdenum concentration increased only in vines with sufficient molybdenum.
- Taxon
- Vitis viniferaVitis viniferat0
- Outcome
- concentration of molybdenum in grape juicee0
- Direction
- increasede0
- Qualifier
- vines that had sufficient molybdenume0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of molybdenum in grape juice only increased in vines that had sufficient molybdenum.”
t0“Vitis vinifera”
Claim · model-written summary
Yield increase from molybdenum treatment was confined to deficient vines.
- Taxon
- Vitis viniferaVitis viniferat0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- Mo-deficient vinese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“however, yield only increased on Mo-deficient vines.”
t0“Vitis vinifera”
Claim · model-written summary
Molybdenum status and fruit set of own rooted Merlot vines were significantly positively associated.
- Taxon
- Vitis viniferaVitis viniferat0
- Material
- Merlote0
- Outcome
- fruitsete0
- Direction
- positivee0
- Qualifier
- vine molybdenum statuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This research demonstrates a significant positive relationship between vine molybdenum status and fruitset of own-rooted Merlot vines.”
t0“Vitis vinifera”
The same questions in other papers
molybdenum atom · yield · Vitis vinifera (wine grape)Results agree
1 paper in the same direction as this paper
- positive
molybdenum atom · molecular: metabolites · Vitis vinifera (wine grape)Results 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.