Reprint of "Morphological and physiological traits of roots and their relationships with water productivity in water-saving and drought-resistant rice"
Abstract
Water-saving and drought-resistant rice (WDR) showed higher water productivity than paddy rice under water-saving irrigation. WDR had better root morpho-physiological performance than paddy rice, such as greater root length density and active absorption area. WDR could maintain a higher root activity during soil-drying and more recovery functions during re-watering. The improved root traits in WDR benefits shoot physiological processes, leading to higher grain yield and water productivity.
- Publication:
-
Field Crops Research
- Pub Date:
- August 2014
- DOI:
- 10.1016/j.fcr.2014.06.026
- Bibcode:
- 2014FCrRe.165...36C
- Keywords:
-
- Water-saving and drought-resistant rice (Oryza sativa L.);
- Root morpho-physiological traits;
- Grain filling;
- Alternate wetting and drying;
- Grain yield;
- Water productivity.;
- AGPase;
- adenosine diphosphoglucose pyrophosphorylase;
- AWD;
- alternate wetting and drying;
- CF;
- continuous flooding;
- DAT;
- days after transplanting;
- DW;
- dry weight;
- ROA;
- root oxidation activity;
- StSase;
- starch synthase;
- SuSase;
- sucrose synthase;
- WDR;
- water-saving and drought-resistant rice;
- Z;
- zeatin;
- ZR;
- zeatin riboside