Appropriate NH₄⁺: NO₃^- ratio improves low light tolerance of mini Chinese cabbage seedlings.

ABSTRACT:

Background

In northwest of China, mini Chinese cabbage (Brassica pekinensis) is highly valued by consumers, and is widely cultivated during winter in solar-greenhouses where low light (LL) fluence (between 85 and 150 μmol m^-2 s^-1 in day) is a major abiotic stress factor limiting plant growth and crop productivity. The mechanisms with which various NH₄⁺: NO₃^- ratios affected growth and photosynthesis of mini Chinese cabbage under normal (200 μmol m^-2 s^-1) and low (100 μmol m^-2 s^-1) light conditions was investigated. The four solutions with different ratios of NH₄⁺: NO₃^- applied were 0:100, 10:90, 15:85 and 25:75 with the set up in

SUBMITTER: Hu L 

PROVIDER: S-EPMC5259974 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature