Abstract
A total of four sets of seeds (totalling 5526 seeds) were recieved from CIAT during the period 1990-1993. One set (comprising 1100 hybrid seeds) originated from the Thai-CIAT program in Rayong. Evaluation and selection of seedling clones has progressed satisfactorily, and culminated in the release on August 9, 1992 of an early clone (CM3906-31) named MM 92. This cultivar is capable of yielding 30 t/ha of fresh roots on drained peat after six months, and up to 40 t/ha on mineral soils. Starch content, however, was low at 20 percent. Agronomic research included studies on the effect of spacing and fertilizer rates on the yield of Perintis (released in 1988) and MM 92 grown on peat. A long-term fertility trial on peat has now completed its ninth cropping cycle. The most significant response has been to lime applications. On mineral soils, an erosion control study over two seasons of cropping showed that natural grass or citronella contour barrier strips were most effective in reducing erosion, although statistically there were no significant differences in soil loss due to the different tillage and cropping treatments. Physiological studies on the effect of water stress (in excess and in short supply) were carried out in lysimeters and large containers, respectively. Cassava was able to withstand flooding (at 3 1/2 months) up to 3-4 days. Drought at 4 months seemed to increase the cyanide content in the root pith of the edible variety Medan. Conversely, moisture stress lasting three weeks in an 8-month crop appeared to produce the same effect in both Perintis and Medan
Abstract from the paper’s OpenAlex record; open copy licensed other-oa. 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 12
Claim · model-written summary
An early cassava clone CM3906-31 was released as MM 92.
- Taxon
- cassava
Manihot esculentat0 - Material
- MM 92e0
- Outcome
- releasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“release on August 9, 1992 of an early clone (CM3906-31) named MM 92.”
t0“cassava”
Claim · model-written summary
MM 92 could yield 30 t/ha of fresh roots on drained peat after six months.
- Taxon
- cassavaManihot esculentat0
- Material
- MM 92t1
- Outcome
- fresh rootse0
- Value
- 30 t/hae0
- Qualifier
- after six monthse0
- Setting
- drained peate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This cultivar is capable of yielding 30 t/ha of fresh roots on drained peat after six months”
t0“cassava”
t1“named MM 92”
Claim · model-written summary
MM 92 could yield up to 40 t/ha on mineral soils.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“up to 40 t/ha on mineral soils”
t0“cassava”
t1“named MM 92”
e1“yielding”
Claim · model-written summary
MM 92 starch content was low at 20 percent.
- Taxon
- cassavaManihot esculentat0
- Material
- MM 92t1
- Outcome
- Starch contente0
- Direction
- lowe0
- Value
- 20 percente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Starch content, however, was low at 20 percent.”
t0“cassava”
t1“named MM 92”
Claim · model-written summary
Lime applications produced the strongest response in a long-term peat fertility trial.
- Taxon
- cassavaManihot esculentat0
- Treatment
- lime applicationse0
- Outcome
- most significant responsee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most significant response has been to lime applications.”
t0“cassava”
Claim · model-written summary
Natural grass contour barriers were among the most effective for reducing erosion.
- Taxon
- cassavaManihot esculentat0
- Treatment
- natural grasse0
- Outcome
- erosione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“natural grass or citronella contour barrier strips were most effective in reducing erosion”
t0“cassava”
Claim · model-written summary
Citronella contour barriers were among the most effective for reducing erosion.
- Taxon
- cassavaManihot esculentat0
- Treatment
- citronella contour barrier stripse0
- Outcome
- erosione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“natural grass or citronella contour barrier strips were most effective in reducing erosion”
t0“cassava”
Claim · model-written summary
Soil loss did not differ significantly among tillage and cropping treatments.
- Taxon
- cassavaManihot esculentat0
- Treatment
- different tillage and cropping treatmentse0
- Outcome
- soil losse0
- Direction
- no significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences in soil loss due to the different tillage and cropping treatments.”
t0“cassava”
Claim · model-written summary
Cassava withstood flooding at three and a half months of age for up to 3–4 days.
- Taxon
- CassavaManihot esculentae0
- Outcome
- withstand floodinge0
- Value
- 3-4 dayse0
- Qualifier
- at 3 1/2 monthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cassava was able to withstand flooding (at 3 1/2 months) up to 3-4 days.”
Claim · model-written summary
Drought at four months seemed to increase cyanide content in Medan root pith.
- Taxon
- cassavaManihot esculentat0
- Material
- Medane0
- Organ / stage
- root pithe0
- Treatment
- Drought at 4 monthse0
- Outcome
- cyanide contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought at 4 months seemed to increase the cyanide content in the root pith of the edible variety Medan.”
t0“cassava”
Claim · model-written summary
Three weeks of moisture stress in an eight-month crop appeared to increase root pith cyanide in Perintis.
- Taxon
- cassavaManihot esculentat0
- Material
- Perintise0
- Treatment
- moisture stress lasting three weekse0
- Outcome
- same effecte0
- Qualifier
- 8-month crope0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moisture stress lasting three weeks in an 8-month crop appeared to produce the same effect in both Perintis and Medan”
t0“cassava”
Claim · model-written summary
Three weeks of moisture stress in an eight-month crop appeared to have the same cyanide effect in Medan.
- Taxon
- cassavaManihot esculentat0
- Material
- Medane0
- Treatment
- moisture stress lasting three weekse0
- Outcome
- same effecte0
- Qualifier
- 8-month crope0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moisture stress lasting three weeks in an 8-month crop appeared to produce the same effect in both Perintis and Medan”
t0“cassava”
The same questions in other papers
tillage · soil: physics · Manihot esculenta (cassava)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
drought · molecular: metabolites · Manihot esculenta (cassava)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →trap barrier · soil: physics · Manihot esculenta (cassava)Results agree
2 papers in the same direction as this paper
- positive
- 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.