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SpeedFlower, na-develop ng IRRI, ang Kauna-unahang Speed ​​Breeding Protocol para sa Bigas

Ang mga siyentipiko mula sa International Rice Research Institute (IRRI) ay bumuo ng SpeedFlower, isang matatag, kauna-unahang speed breeding protocol para sa bigas na makakamit ng 4 hanggang 5 pananim ng palay sa isang taon, na halos doble sa kung ano ang naging posible sa kasalukuyang programa ng pagpupunla.

Nakatuon ang SpeedFlower sa pag-optimize ng light spectrum, intensity, photoperiod, temperatura, halumigmig, mga antas ng nutrient, at hormonal regulation para mapabilis ang paglaki, pamumulaklak, at maturity sa bigas. Nagpakita ito ng pamumulaklak sa loob lamang ng 60 araw para sa nasubok na mga uri ng palay at nakamit ang 50% na pagbawas sa panahon ng maturity ng buto, anuman ang kanilang natural na tagal ng pamumulaklak. Ang protocol ay angkop para sa karamihan ng mga palay na itinanim sa buong mundo, kabilang ang para sa indica at japonica.

Isang subset ng 198 genotypes mula sa 12 magkakaibang sub-group ng Oryza sativa L. mula sa 3,000 Rice Genomes Project (3K RGP) ang napili upang patunayan ang SpeedFlower sa speed breeding facility sa IRRI South Asia Regional Center (ISARC) sa Varanasi, India . Sa mga kondisyon ng field, ang oras ng pamumulaklak ng mga genotype na ito ay mula 58 hanggang 127 araw. Gayunpaman, kapag lumaki sa ilalim ng na-optimize na SpeedFlower, lahat ng 198 genotype ay matagumpay na namumulaklak sa loob ng 58 araw.

Ang SpeedFlower ay nagpapakita ng isang kahanga-hangang epekto ng bilis ng pag-aanak sa pagsasaliksik ng pananim. Sa protocol na ito, mapapabilis natin ang mga aktibidad ng crossing at inbreeding, kumpletuhin ang mga ito sa loob ng 1.5–2 taon sa halip na karaniwang 6–7 taon na kinakailangan sa field,” sabi ni ISARC Director Dr. Sudhanshu Singh.

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