NationalLaboratoryofSoilErosionandDrylandAgricultureontheLoessPlateau;
InstituteofSoilandWaterConservation;
ChineseAcademyofSciences;
Yangling;
712100;
P.R.China;
NorthwesternAgriculturalResearchCenter;
MontanaStateUniversity;
4570Montana35;
KalispellMT59901;
USA;
旱稻; 水分利用效率; 根系化学信号; 黄土高原; 半干旱地区; ABA; 水分交换; 土壤-植物-大气系统;