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  "id": "P-OPP-01209",
  "title": "Invent drought-proof staple crops for dry regions",
  "done_when": "",
  "criteria_revision": null,
  "summary": "Independent review by claude-independent-prior-art-reviewer-20261106: No open or discoverable solution makes staple crops drought-proof, so the Main KPI of 1,000,000,000 people growing drought-proof crops is far from met. The best deployed answers are drought-tolerant, not drought-proof. HB4 wheat, approved in Argentina, gave a 13 percent field yield advantage under reproductive-stage water deficit in INTA's April 2026 Field Crops Research study and had about 100,000 ha planted cumulatively by 2024 (https://repositorio.inta.gob.ar/handle/20.500.12123/25002). DTMA drought-tolerant maize out-yields checks in managed trials, but in Malawi's 2011/12 early-season drought it did no better than other improved maize (https://link.springer.com/10.1007/s12571-015-0511-4), and modelled gains are 3 to 20 percent. Cereal losses in drought years still average 13.7 percent globally, and the UNCCD frames even 25 to 30 percent drought yield gains as tolerance, not immunity (https://www.unccd.int/resources/unccd-library/new-hostile-climate-drought-tolerant-crops-systems-needed-unprecedented). Europe PMC returns only 6 records for the phrase drought-proof crop, none reporting such a crop. Honest limit: drought tolerance in maize, wheat and sorghum is a mature field with released varieties, so tasks that re-breed or re-test HB4 or DTMA-type tolerance are known answers; the open work is crops that hold yield under severe, early or multi-season drought, and each task needs its own basis. (open solution found: no; known answer: no; 6 project-level searches of api.github.com/search/repositories, export.arxiv.org/api/query, api.crossref.org/works; draft 0411fb71e4038455b5a3d2648772d8d191b8b662fc90df3598a1cb255d8b96c8, source 0b987f60132671b031c5edd90395ad0367aa7512f186fb611ed2eb5c3d4382be)",
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    "basis": "Independent review by claude-independent-prior-art-reviewer-20261106: No open or discoverable solution makes staple crops drought-proof, so the Main KPI of 1,000,000,000 people growing drought-proof crops is far from met. The best deployed answers are drought-tolerant, not drought-proof. HB4 wheat, approved in Argentina, gave a 13 percent field yield advantage under reproductive-stage water deficit in INTA's April 2026 Field Crops Research study and had about 100,000 ha planted cumulatively by 2024 (https://repositorio.inta.gob.ar/handle/20.500.12123/25002). DTMA drought-tolerant maize out-yields checks in managed trials, but in Malawi's 2011/12 early-season drought it did no better than other improved maize (https://link.springer.com/10.1007/s12571-015-0511-4), and modelled gains are 3 to 20 percent. Cereal losses in drought years still average 13.7 percent globally, and the UNCCD frames even 25 to 30 percent drought yield gains as tolerance, not immunity (https://www.unccd.int/resources/unccd-library/new-hostile-climate-drought-tolerant-crops-systems-needed-unprecedented). Europe PMC returns only 6 records for the phrase drought-proof crop, none reporting such a crop. Honest limit: drought tolerance in maize, wheat and sorghum is a mature field with released varieties, so tasks that re-breed or re-test HB4 or DTMA-type tolerance are known answers; the open work is crops that hold yield under severe, early or multi-season drought, and each task needs its own basis. (open solution found: no; known answer: no; 6 project-level searches of api.github.com/search/repositories, export.arxiv.org/api/query, api.crossref.org/works; draft 0411fb71e4038455b5a3d2648772d8d191b8b662fc90df3598a1cb255d8b96c8, source 0b987f60132671b031c5edd90395ad0367aa7512f186fb611ed2eb5c3d4382be)",
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      "export.arxiv.org/api/query \"invent drought-proof staple crops dry regions\" url=https://export.arxiv.org/api/query?search_query=all%3Ainvent%20AND%20all%3Adrought-proof%20AND%20all%3Astaple%20AND%20all%3Acrops%20AND%20all%3Adry%20AND%20all%3Aregions&start=0&max_results=10 sha256=4ee80bf7c194dfe0c14395a8b216194f766a3959902100c1c731d70f36b8e942",
      "api.crossref.org/works \"invent drought-proof staple crops dry regions\" url=https://api.crossref.org/works?query=invent%20drought-proof%20staple%20crops%20dry%20regions&rows=10&select=DOI,title sha256=4757ce95d6ca8fbbe4bc11008d9ee7c0ff88d502819c0ae590732c0feb01dd25",
      "api.github.com/search/repositories \"invent drought-proof staple food nutrition systems\" url=https://api.github.com/search/repositories?q=invent%20drought-proof%20staple%20food%20nutrition%20systems&per_page=10 sha256=4af480b8ee5b87b369a76c49bd22c9a783908272ebffbe97898f8ab0f0772a5f",
      "export.arxiv.org/api/query \"invent drought-proof staple food nutrition systems\" url=https://export.arxiv.org/api/query?search_query=all%3Ainvent%20AND%20all%3Adrought-proof%20AND%20all%3Astaple%20AND%20all%3Afood%20AND%20all%3Anutrition%20AND%20all%3Asystems&start=0&max_results=10 sha256=1db9eacffb39d2e0d0bb9cc069276e3a3f3c25edc50be627509e12cf350b690f",
      "api.crossref.org/works \"invent drought-proof staple food nutrition systems\" url=https://api.crossref.org/works?query=invent%20drought-proof%20staple%20food%20nutrition%20systems&rows=10&select=DOI,title sha256=4db9a0112bb027ca0aea1f5c1fed96dab107f12a32648e5763d10786a2cc8d7d"
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