Calendar of Seed Preparation and Distribution of IWIN nurseries
- June, Year 1. Seed is planted in El Batan. Field plots are repeatedly treated with systemic fungicides, and harvested seed is disinfected with a sodium hypochlorite solution. Seed from each line is inspected by CIMMYT's Seed Health Unit (SHU) and approved for quarantine multiplication in Mexicali.
- July, Year 1. Nursery request forms are sent to IWIN cooperators. The global distribution list is finalized in January, Year 2.
- November, Year 1. Seed is sent by air from El Batan for quarantine multiplication in Mexicali. Mexicali is recognized by the Mexican Government (NOM-001-FITO-1995), the North American Plant Protection Organization (NAPPO), and the European Plant Protection Organization (EPPO) as a Karnal bunt-free area. Mexicali field plots are repeatedly treated with systemic fungicides, visually inspected, and sampled for more diagnostic pathogen testing.
- June-December, Year 2. Mexicali seed is harvested and returned to El Batan in sealed trucks. Internal seed from each line (>5,000 lines) is inspected by the SHU. Seed health certification is required before seed is cleaned, washed, treated, dried, and packaged.
- January-December, Year 3. Nursery shipments are dispatched by express air couriers, or air freight, to cooperators in more than 120 countries.
- January¬December, Year 4. Data are returned to CIMMYT-Mexico by IWIN cooperators, entered into the IWIS database, analyzed, and returned to cooperators on CD-ROM. They can also be made available in real time via web access (pending future application).
Please note that below list is a complete list of IWIN nurseries. Not all these nurseries are included in the Wheat Atlas database.
Bread Wheat Nurseries - Spring Wheat |
ASWSN |
Acid-Soils Wheat Screening Nursery |
EBWYT |
Elite Bread Wheat Yield Trial |
ESWYT |
Elite Spring Wheat Yield Trial - grain color = WHITE
- ESWYT-CHN (special edition for China)
- ESWYT-LGY
|
HLAYT |
High Latitude Adaptation Yield Trial |
HLWSN |
High Latitude Wheat Screening Nursery |
HRWSN |
High Rainfall Wheat Screening Nursery - grain color = RED |
HRWYT |
High-Rainfall Wheat Yield Trial - grain color = RED
- HRWYT-CHN (special edition for China)
- HRWYT-LGY
|
HTWSN |
Heat Tolerance Wheat Screening Nursery |
HTWYT |
High Temperature Wheat Yield Trial
- HTWYT-CHN (special edition for China)
|
IBWSN |
International Bread Wheat Screening Nursery (for irrigated conditions) - grain color = WHITE
- IBSWN-CH (special edition for China)
|
ISWSN |
International Spring Wheat Screening Nursery |
SATYN |
Stress Adaptive Trait Yield Nursery |
SAWSN |
Semi-Arid Wheat Screening Nursery(for low rainfall conditions) - grain color = WHITE |
SAWYT |
Semi-Arid Wheat Yield Trial |
WAWSN |
Warmer Areas Wheat Screening Nursery |
Bread Wheat Nurseries - Facultative and Winter Wheat |
FAWWON-IR |
Facultative and Winter Wheat Observation Nursery for Irrigated Environments |
FAWWON-SA |
Facultative and Winter Wheat Observation Nursery for Semi-Arid Environments |
IWWYT-IR |
International Winter Wheat Yield Trial for Irrigated Environments |
IWWYT-SA |
International Winter Wheat Yield Trial for Irrigated Environments |
WWSRRN |
Winter Wheat Stem Rust Resistance Nursery |
Durum Wheat Nurseries |
EDUYT |
Elite Durum Yield Trial, unreplicated |
IDSN |
International Durum Screening Nursery |
IDYN |
International Durum Yield Nursery |
Triticale Nurseries |
FWTCL |
Facultative and Winter Triticale |
ITYN |
International Triticale Yield Nursery |
ITSN |
International Triticale Screening Nursery |
Special and Project - Specific Nurseries |
CSISAHT |
CSISA Heat Trial (CSISA = Cereal Systems Initiative for South Asia) |
CSISASB |
CSISA Spot Blotch (CSISA = Cereal Systems Initiative for South Asia) |
FHBSN |
Fusarium Head Blight Screening Nursery (earlier Scab Resistance Screening Nursery - SRSN) |
GAWYT |
Global Adaptation Wheat Yield Trial |
HPYT |
Harvest Plus Yield Trial |
HPSAN |
Harvest Plus South Asia Nursery |
IAT |
International Adaptation Trial |
ISEPTON |
International Septoria Observation Nursery (earlier Septoria Monitoring Nursery – SMN) |
KBSN |
Karnal Bunt Screening Nursery |
SMN |
Septoria Monitoring Nursery (now International Septoria Observation Nursery – ISEPTON) |
SRSN |
Scab Resistance Screening Nursery (now Fusarium Head Blight Screening Nursery) |
STEMRRSN |
Stem Rust Resistance Screening Nursery |
WYCYT |
Wheat Yield Consortium Yield Trial |