Abstract
Chemical and biological control of root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms) was attempted in greenhouse and field tests. In-furrow spray-drench and granular treatments of the experimental compound CGA 48988 (Ciba-Geigy), applied at planting time at rates ranging from 0.5 to 2.0 kg a.i./ha, greatly reduced loss of plants from the disease and doubled the yield of the cultivar Steele, which has a low degree of field tolerance to Pms race 6. An in-furrow spray-drench treatment with thiram at 1.0 kg a.i./ha significantly reduced loss of plants, but not as much as CGA 48988 and not sufficiently to increase yield. Captan and CGA 48988 applied to Harosoy 63 seeds (at 0.13 and 0.33 g a.i./kg of seed, respectively) by a pelleting technique gave short-term control in the greenhouse, but did not significantly increase plant survival and yield in the field. CGA 48988, which is systemic in soybeans, increased plant survival and. yield in the field at 1.65 g a.i./kg of seed in seed pellets. Inclusion of the fungal antagonist Gliocladium virens Miller, Giddens and Foster in seed pellets did not significantly control Pms either alone or in combination with a low rate of captan or CGA 48988.
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Claims 10
Claim · model-written summary
In furrow CGA 48988 reduced disease related plant loss.
- Taxon
- soybean
Glycine maxe7 - Treatment
- CGA 48988e0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.
Phytophthora megaspermae7pathogen - Outcome
- loss of plantse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“In-furrow spray-drench and granular treatments of the experimental compound CGA 48988 (Ciba-Geigy), applied at planting time at rates ranging from 0.5 to 2.0 kg a.i./ha, greatly reduced loss of plants from the disease”
Claim · model-written summary
In furrow CGA 48988 doubled Steele yield.
- Taxon
- soybeanGlycine maxe7
- Material
- Steelee0
- Treatment
- CGA 48988e1
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Outcome
- yielde0
- Direction
- doublede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“doubled the yield of the cultivar Steele”
e1“the experimental compound CGA 48988”
Claim · model-written summary
Thiram significantly reduced plant losses, less than CGA 48988.
- Taxon
- soybeanGlycine maxe7
- Treatment
- thiram at 1.0 kg a.i./hae0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Outcome
- loss of plantse0
- Direction
- reducede0
- Comparator
- CGA 48988e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“An in-furrow spray-drench treatment with thiram at 1.0 kg a.i./ha significantly reduced loss of plants, but not as much as CGA 48988”
Claim · model-written summary
Thiram did not increase yield.
- Taxon
- soybeanGlycine maxe7
- Treatment
- thiram at 1.0 kg a.i./hae1
- Outcome
- yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“not sufficiently to increase yield”
e1“treatment with thiram at 1.0 kg a.i./ha”
Claim · model-written summary
Captan seed pellets gave short term greenhouse control.
- Taxon
- soybeanGlycine maxe7
- Material
- Harosoy 63e0
- Treatment
- Captane0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Outcome
- short-term controle0
- Setting
- greenhousee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“Captan and CGA 48988 applied to Harosoy 63 seeds (at 0.13 and 0.33 g a.i./kg of seed, respectively) by a pelleting technique gave short-term control in the greenhouse”
Claim · model-written summary
CGA 48988 seed pellets gave short term greenhouse control.
- Taxon
- soybeanGlycine maxe7
- Material
- Harosoy 63e0
- Treatment
- CGA 48988e0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Outcome
- short-term controle0
- Setting
- greenhousee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“Captan and CGA 48988 applied to Harosoy 63 seeds (at 0.13 and 0.33 g a.i./kg of seed, respectively) by a pelleting technique gave short-term control in the greenhouse”
Claim · model-written summary
Captan pellets did not significantly increase field survival and yield.
- Taxon
- soybeanGlycine maxe7
- Treatment
- Captane0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Outcome
- plant survival and yielde0
- Direction
- did not significantly increasee0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“Captan and CGA 48988 applied to Harosoy 63 seeds (at 0.13 and 0.33 g a.i./kg of seed, respectively) by a pelleting technique gave short-term control in the greenhouse, but did not significantly increase plant survival and yield in the field”
Claim · model-written summary
Low rate CGA 48988 pellets did not significantly increase field survival and yield.
- Taxon
- soybeanGlycine maxe7
- Treatment
- CGA 48988e0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Outcome
- plant survival and yielde0
- Direction
- did not significantly increasee0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“Captan and CGA 48988 applied to Harosoy 63 seeds (at 0.13 and 0.33 g a.i./kg of seed, respectively) by a pelleting technique gave short-term control in the greenhouse, but did not significantly increase plant survival and yield in the field”
Claim · model-written summary
Higher rate CGA 48988 pellets increased field survival and yield.
- Taxon
- soybeanGlycine maxe7
- Treatment
- CGA 48988e0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Outcome
- plant survival and. yielde0
- Direction
- increasede0
- Value
- 1.65 g a.i./kg of seede0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“CGA 48988, which is systemic in soybeans, increased plant survival and. yield in the field at 1.65 g a.i./kg of seed in seed pellets”
Claim · model-written summary
Gliocladium virens seed pellets alone did not significantly control Pms.
- Taxon
- soybeanGlycine maxe7
- Treatment
- Gliocladium virens Miller, Giddens and Fostere0
- Interactor
- Phytophthora megasperma Drechs. var. sojae Hildebr.Phytophthora megaspermae7pathogen
- Second interactor
- Gliocladium virens Miller, Giddens and Fostere0biocontrol_agent
- Outcome
- Pmse0
- Direction
- did not significantly controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“root and stalk rot of soybean (Glycine max (L.) Merr.) caused by Phytophthora megasperma Drechs. var. sojae Hildebr. (Pms)”
e0“Inclusion of the fungal antagonist Gliocladium virens Miller, Giddens and Foster in seed pellets did not significantly control Pms either alone or in combination with a low rate of captan or CGA 48988”
The same questions in other papers
thiram · yield · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 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.