Response of root development and nutrient uptake of two chinese cultivars of hybrid rice to nitrogen and phosphorus fertilization in Sichuan Province, China.
![](/themes/MirageIBISS//images/openAccess.png)
2021
Autori:
Yang, GuotaoNabi, Farhan
Sajid, Sumbal
Kaleri, Abdul Rasheed
Jakhar, Ali Murad
Cheng, Liang
Raspor, Martin
![](/themes/MirageIBISS/images/orcid.png)
Muhammad, Noor
Ma, Jun
Hu, Yungao
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
BACKGROUND Chemical fertilization helped modern agriculture in grain yield improvement to ensure food security. The response of chemical fertilization for higher hybrid rice production is highly dependent on optimal fertilization management in paddy fields. To assess such responses, in the current work we examine the yield, root growth, and expression of related genes responsible for stress metabolism of nitrogen (N) and phosphorus (P) in two hybrid-rice cultivars Deyou4727 (D47) and Yixiangyou2115 (Y21). METHODS AND RESULTS The experiment followed four nitrogen (N) (N0, N60, N120, and N180 kg/ha) and phosphorus (P) (P0, P60, P90, and P120 kg/ha) fertilizer levels. The grain yield in D47 was more sensitive to nitrogen application, while Y21 was more sensitive to phosphorus application, which resulted in comparatively higher biomass and yield. Our findings were corroborated by gene expression studies of glutamine synthetase OsGS1;1 and OsGS1;2 and phosphate starvation-related genes PHR1 and SPX, confirming sensitivity to N and P application. The number of roots was less sensitive to nitrogen application in D47 between N0 and N60, but the overall nutrient response difference was significantly higher due to the deep rooting system as compared to Y21. CONCLUSIONS The higher yield, high N and P use efficiency, and versatile root growth of D47 make it suitable to reduce unproductive usage of N and P from paddy fields, improving hybrid rice productivity, and environmental safety in the Sichuan basin area of China.
Ključne reči:
Deyou4727; Gene expression; Nutrient use efficiency; Root growth; Yixiangyou2115Izvor:
Molecular Biology Reports, 2021, 48, 12, 8009-821Finansiranje / projekti:
- Sichuan Province Science and Technology Support Program
DOI: 10.1007/s11033-021-06835-7
ISSN: 0301-4851
PubMed: 34665398
WoS: 000708832300008
Scopus: 2-s2.0-85117338021
URI
https://link.springer.com/10.1007/s11033-021-06835-7https://radar.ibiss.bg.ac.rs/handle/123456789/4637