SpeedyPaddy: a revolutionized cost-effective protocol for large scale offseason advancement of rice germplasm

Autor: Nitika Sandhu, Jasneet Singh, Gomsie Pruthi, Vikas Kumar Verma, Om Prakash Raigar, Navtej Singh Bains, Parveen Chhuneja, Arvind Kumar
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Plant Methods, Vol 20, Iss 1, Pp 1-13 (2024)
Druh dokumentu: article
ISSN: 1746-4811
DOI: 10.1186/s13007-024-01235-x
Popis: Abstract Background Improving the rate of genetic gain of cereal crop will rely on the accelerated crop breeding pipelines to allow rapid delivery of improved crop varieties. The laborious, time-consuming traditional breeding cycle, and the seasonal variations are the key factor restricting the breeder to develop new varieties. To address these issues, a revolutionized cost-effective speed breeding protocol for large-scale rice germplasm advancement is presented in the present study. The protocol emphasises on optimizing potting material, balancing the double-edged sword of limited nutritional dose, mode and stage of application, plant density, temperature, humidity, light spectrum, intensity, photoperiod, and hormonal regulation to accelerate rice growth and development. Results The plant density of 700 plants/m2, cost-effective halogen tubes (B:G:R:FR-7.0:27.6:65.4:89.2) with an intensity of ∼ 750–800 µmol/m2/s and photoperiod of 13 h light and 11 h dark during seedling and vegetative stage and 8 h light and 16 h dark during reproductive stage had a significant effect (P
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