Integrated Crop Management Practices Improve Grain Yield and Resource Use Efficiency of Super Hybrid Rice.

ABSTRACT: Super hybrid rice genotypes have transformed the rate of genetic yield gain primarily due to intersubspecific heterosis, although the physiological basis underpinning this yield transformation has not been well quantified. We assessed the radiation use efficiency (RUE) and nitrogen use efficiency (NUE) of novel hybrid rice genotypes under four management practices representative of rice cropping systems in China. Y-liangyou 900 (YLY900), a new super hybrid rice widely adopted in China, was examined in field experiments conducted in Jingzhou and Suizhou, Hubei Province, China, from 2017 to 2020. Four management practices were conducted: nil fertilizer (CK), conventional farmer practice (FP), optimized cultivation with reduced nitrogen (OPT_-N), and optimized cultivation with incre

SUBMITTER: Deng J 

PROVIDER: S-EPMC9007698 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature