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Record W7161972683 · doi:10.82308/11805

Increase the crop water use efficiency using super absorbent polymers

2015· dissertation· en· W7161972683 on OpenAlexaboutno aff
Rahul Suresh

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEngineering
TopicPolymer-Based Agricultural Enhancements
Canadian institutionsnot available
Fundersnot available
KeywordsTranspirationGreenhouseStomatal conductanceIrrigationWater-use efficiencyWater usePhotosynthesisRandomized block design

Abstract

fetched live from OpenAlex

Freshwater plays an important role in supporting life on the planet. Agriculture uses 70% of the total accessible freshwater (0.03% of the total global water resources) which makes it important to increase irrigation efficiency so that we can produce more with less freshwater use. SAPs or hydrogels are cross-linked polymeric three-dimensional structures which have the ability to absorb and retain large amounts of water relative to their own mass. The objective of this study was to investigate the gain in water use efficiency and physiological growth of cherry tomatoes (Solanum lycopersicum var. cerasiforme) under different levels of SAP and irrigation treatments. The experiment was laid out in a completely randomised block design with three levels of SAP treatments which include 0% (control), 0.1% and 0.5% and three levels of plant watering application treatments which included everyday watering (control), once in two days watering and once in three days watering from the day of transplant up to four months; all treatments were replicated five times. Trials were carried out in a greenhouse at Macdonald Campus of McGill University in Sainte-Anne-de-Bellevue, Quebec, Canada. The results of the study indicate that 0.5% SAP performed significantly better than control (0% SAP) in terms of yield (P=0.0056) and water use efficiency (P=0.050), whereas, no significant difference was found within the SAP treatments for photosynthetic activity (P=0.5039), stomatal conductance (P=0.5344), transpiration rate (P=0.4907), normalised differential vegetative index (NDVI) (P=0.3901) and plant height (P=0.8967). However, the trends in each of the measurement confirm positive effect of SAP on cherry tomatoes. A microtox toxicology analysis revealed that the SAPs were not toxic to the agro-mix and is safe to use in the fields. Thus, the application of 0.5% SAP can significantly increase the yield and the water use efficiency.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.015
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.018
GPT teacher head0.241
Teacher spread0.223 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2015
Admission routes1
Has abstractyes

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