섬유
crop water stress index relationships with crop productivity
- 출판일1999.03
- 저자
- 서지사항
- 등록일
2016.11.02
- 조회수
285
field experiments between 1983 and 1987 were used to study the effect of crop development on crop water stress index (cwsi) parameters and the relationship of cwsi with the yield of cotton and grain sorghum. the absolute slopes of nonstressed baselines (nsbl) generally increased until canopy cover reached 70. nsbl derived from data collected when canopy temperature exceeded 27.4 $degree$ c had greater absolute slopes and higher r**2-values than nsbl that included all diurnal measurements (table 1). average cwsi values of cotton and grain sorghum grown under varying soil water regimes were negatively correlated with yield. grain sorghum yield was more sensitive to cwsi values than was cotton lint yield. additional study results are discussed. (edited author abstract) 20 refs