Abstract
Certain tree responses were investigated as a possible result of four spray oil fractions and a non-oil treatment applied during July 1959–61. Juice analyses showed the October 1 samples of all treatments failed to meet maturity specifications by Texas standards. By late October, maturity was reached only in 1961 in all samples (except the high molecular weight paraffinic oil treatment) and in the 330-molecular-weight paraffinic oil treatment in 1960. By December, all samples met maturity. The soluble solids of the higher molecular weight paraffinic oil treatment were consistently lower in all samples. The higher percent soluble solids was associated with a higher percent acid, in general, and the resulting ratios were about the same. Significantly greater leaf drop was found in the paraffinic oil plots than in the non-oil plots. However, the greater leaf drop with the 330-molecular-weight paraffinic oil occurred only in 1959 and the general leaf drop in any plot was not excessive. Greater leaf drop occurred during the first 2 to 3 weeks after treatment. No significant differences were found in yield, although the plots sprayed with the oil with a molecular weight of 362 yielded ½ box per tree less than that with the next greater plot yield.
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Claims 12
Claim · model-written summary
All treatments failed Texas maturity standards in October 1 juice samples.
- Taxon
- Grapefruit Trees
_Pompelino_Grapefruit_002.jpg?width=60)
Citrus ×paradisit0 - Outcome
- failed to meet maturity specificationse0
- Qualifier
- October 1 samplese0
- Setting
- Texase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Pompelino_Grapefruit_002.jpg?width=500)
Verbatim
e0“the October 1 samples of all treatments failed to meet maturity specifications by Texas standards”
t0“Grapefruit Trees”
Claim · model-written summary
By late October, all 1961 samples except those treated with high molecular weight paraffinic oil had reached maturity.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Outcome
- maturity was reachede0
- Qualifier
- only in 1961 in all samples (except the high molecular weight paraffinic oil treatment)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By late October, maturity was reached only in 1961 in all samples (except the high molecular weight paraffinic oil treatment)”
t0“Grapefruit Trees”
Claim · model-written summary
The 330-molecular-weight paraffinic oil treatment reached maturity by late October in 1960.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Treatment
- 330-molecular-weight paraffinic oil treatmente0
- Outcome
- maturity was reachede1
- Qualifier
- in 1960e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the 330-molecular-weight paraffinic oil treatment in 1960”
e1“By late October, maturity was reached”
t0“Grapefruit Trees”
Claim · model-written summary
All samples met maturity standards by December.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Outcome
- all samples met maturitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By December, all samples met maturity”
t0“Grapefruit Trees”
Claim · model-written summary
Higher molecular weight paraffinic oil had consistently lower soluble solids.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Treatment
- higher molecular weight paraffinic oil treatmente0
- Outcome
- soluble solidse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soluble solids of the higher molecular weight paraffinic oil treatment were consistently lower in all samples”
t0“Grapefruit Trees”
Claim · model-written summary
Higher soluble solids were generally associated with higher acid percentage, leaving ratios about the same.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Outcome
- percent acide0
- Direction
- highere0
- Qualifier
- resulting ratios were about the samee0
- Comparator
- higher percent soluble solidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher percent soluble solids was associated with a higher percent acid, in general, and the resulting ratios were about the same”
t0“Grapefruit Trees”
Claim · model-written summary
Paraffinic oil plots had significantly greater leaf drop than non-oil plots.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Treatment
- paraffinic oile0
- Outcome
- leaf drope0
- Direction
- greatere0
- Comparator
- non-oil plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly greater leaf drop was found in the paraffinic oil plots than in the non-oil plots”
t0“Grapefruit Trees”
Claim · model-written summary
Greater leaf drop with 330-molecular-weight paraffinic oil occurred only in 1959.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Treatment
- 330-molecular-weight paraffinic oile0
- Outcome
- leaf drope0
- Direction
- greatere0
- Qualifier
- only in 1959e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the greater leaf drop with the 330-molecular-weight paraffinic oil occurred only in 1959”
t0“Grapefruit Trees”
Claim · model-written summary
Leaf drop in all plots was not excessive.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Outcome
- leaf drop in any plot was not excessivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the general leaf drop in any plot was not excessive”
t0“Grapefruit Trees”
Claim · model-written summary
Leaf drop was greater in the first two to three weeks after treatment.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Outcome
- leaf drope0
- Direction
- Greatere0
- Qualifier
- during the first 2 to 3 weeks after treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greater leaf drop occurred during the first 2 to 3 weeks after treatment”
t0“Grapefruit Trees”
Claim · model-written summary
Yield differences between treatments were not statistically significant.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Treatment
- spray oil fractionse1
- Outcome
- yielde0
- Direction
- No significant differencese0
- Comparator
- non-oil treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant differences were found in yield”
e1“four spray oil fractions and a non-oil treatment”
t0“Grapefruit Trees”
Claim · model-written summary
Plots sprayed with molecular-weight-362 oil yielded half a box per tree less than the next greater plot yield.
- Taxon
- Grapefruit TreesCitrus ×paradisit0
- Treatment
- oil with a molecular weight of 362e0
- Outcome
- yieldede0
- Direction
- lesse0
- Value
- ½ box per treee0
- Comparator
- next greater plot yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the plots sprayed with the oil with a molecular weight of 362 yielded ½ box per tree less than that with the next greater plot yield”
t0“Grapefruit Trees”
The same questions in other papers
application · yield · Citrus x paradisi (grapefruit)Positive and negative results
3 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 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.