Abstract
Cassava is an important subsidiary food and industrial raw material in the tropics. Root rot disease, caused by Phytophthora palmivora, poses a serious threat to cassava cultivation in Tamil Nadu, India. Field experiments (2008–09) were conducted to study the effect of biocontrol agents (Trichoderma spp. and Pseudomonas fluorescens) and biofertilizers (Azospirillum, vesicular–arbuscular mycorrhizal fungi and phosphorus-solubilizing bacteria) on root rot, yield, harvest index and nutrient uptake of cassava at two NPK rates. The design of the experiment was a split plot with two NPK rates, recommended and 50% recommended rate, as the main plot treatments and five biocontrol agents and biofertilizers as subplot treatments. The results clearly indicated that use of a bioinoculants consortium significantly reduced root rot infection/disease incidence over uninoculated controls. Azospirillum significantly improved the yield of cassava at 50% of the recommended rate of NPK. NPK rates had no significant impact on harvest index of cassava and Trichoderma and vesicular–arbuscular mycorrhizal fungi resulted in a higher harvest index even at 50% of the recommended NPK rate. Nitrogen, phosphorus and potassium uptake was significantly improved when treated with biofertilizers and/or a consortium.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 6
Claim · model-written summary
A bioinoculant consortium significantly reduced cassava root rot incidence against uninoculated controls.
- Taxon
- cassava
Manihot esculentat0 - Treatment
- bioinoculants consortiume0
- Interactor
- Phytophthora palmivora
.jpg?width=60)
Phytophthora palmivorae1pathogen - Outcome
- root rot infection/disease incidencee0
- Direction
- reducede0
- Comparator
- uninoculated controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“use of a bioinoculants consortium significantly reduced root rot infection/disease incidence over uninoculated controls.”
e1“caused by Phytophthora palmivora”
t0“cassava”
Claim · model-written summary
Azospirillum significantly improved cassava yield at half the recommended NPK rate.
- Taxon
- cassavaManihot esculentae0
- Treatment
- Azospirillume0
- Interactor
- Azospirillum
Azospirillume0symbiont - Outcome
- yielde0
- Direction
- improvede0
- Qualifier
- 50% of the recommended rate of NPKe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azospirillum significantly improved the yield of cassava at 50% of the recommended rate of NPK.”
Claim · model-written summary
NPK rate had no significant effect on cassava harvest index.
- Taxon
- cassavaManihot esculentae0
- Treatment
- NPK ratese0
- Outcome
- harvest indexe0
- Direction
- no significant impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK rates had no significant impact on harvest index of cassava”
Claim · model-written summary
Trichoderma yielded a higher cassava harvest index at half the recommended NPK rate.
- Taxon
- cassavaManihot esculentat0
- Treatment
- Trichodermae0
- Interactor
- Trichoderma
Trichodermae0biocontrol_agent - Outcome
- harvest indexe0
- Direction
- highere0
- Qualifier
- 50% of the recommended NPK ratee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trichoderma and vesicular–arbuscular mycorrhizal fungi resulted in a higher harvest index even at 50% of the recommended NPK rate.”
t0“cassava”
Claim · model-written summary
Vesicular–arbuscular mycorrhizal fungi yielded a higher cassava harvest index at half the recommended NPK rate.
- Taxon
- cassavaManihot esculentat0
- Treatment
- vesicular–arbuscular mycorrhizal fungie0
- Interactor
- vesicular–arbuscular mycorrhizal fungie0symbiont
- Outcome
- harvest indexe0
- Direction
- highere0
- Qualifier
- 50% of the recommended NPK ratee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vesicular–arbuscular mycorrhizal fungi resulted in a higher harvest index even at 50% of the recommended NPK rate.”
t0“cassava”
Claim · model-written summary
Biofertilizers or a consortium significantly improved cassava nitrogen, phosphorus and potassium uptake.
- Taxon
- cassavaManihot esculentat0
- Treatment
- biofertilizers and/or a consortiume0
- Outcome
- Nitrogen, phosphorus and potassium uptakee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen, phosphorus and potassium uptake was significantly improved when treated with biofertilizers and/or a consortium.”
t0“cassava”
The same questions in other papers
fertilization · yield · Manihot esculenta (cassava)Positive and negative results
11 papers in the same direction as this paper · 141 in the opposite direction
- positive
- positive
- positive
149 papers more in this group
See all 153 papers →inoculation · nutrient: content · Manihot esculenta (cassava)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →mycorrhiza · yield · Manihot esculenta (cassava)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.