Abstract
Expansion of dry bean ( Phaseolus vulgaris L.) production into saline soil areas of Manitoba has led to increased concern regarding its yield and quality response to soil salinity. The objective of this study was to evaluate the impact of salinity on dry bean productivity in southern Manitoba, including the application of a salt tolerance model for dry bean crops. Using a coulter‐based sensor (Veris 3100, Veris Technologies, Salina, KS) to measure apparent soil electrical conductivity (EC a ), surveys of dry bean fields with five levels of soil salinity conditions (very low to very high salinity zones) were created for four sites over 2 yr. High values of EC a were associated with high values of soil saturation extract electrical conductivity (EC e ). Across all site years, average root‐zone salinity (EC e ) values ranged from 0.77 to 11.16 dS m −1 The lowest salinity zones resulted in greater crop biomass, grain yield, harvested seed weight, and grain number, and tended to have greater plant stand densities and grain protein content than the highest salinity zones. A 50% decrease in relative crop yield was caused by EC e values between 4.88 and 8.35 dS m −1 EC a surveys were found to be an excellent tool for assessing the relative soil salinity status of study fields.
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Claims 6
Claim · model-written summary
The lowest salinity zones gave greater crop biomass, grain yield and harvested seed weight of dry bean than the highest salinity zones.
Verbatim
e1“The lowest salinity zones resulted in greater crop biomass, grain yield, harvested seed weight, and grain number, and tended to have greater plant stand densities and grain protein content than the highest salinity zones”
t0“Dry Bean Response to Salinity in Southern Manitoba”
Claim · model-written summary
The lowest salinity zones gave greater grain number of dry bean than the highest salinity zones.
Verbatim
e1“The lowest salinity zones resulted in greater crop biomass, grain yield, harvested seed weight, and grain number, and tended to have greater plant stand densities and grain protein content than the highest salinity zones”
t0“Dry Bean Response to Salinity in Southern Manitoba”
Claim · model-written summary
The lowest salinity zones tended to have greater plant stand densities and grain protein content of dry bean.
Verbatim
e1“The lowest salinity zones resulted in greater crop biomass, grain yield, harvested seed weight, and grain number, and tended to have greater plant stand densities and grain protein content than the highest salinity zones”
t0“Dry Bean Response to Salinity in Southern Manitoba”
Claim · model-written summary
EC e values between 4.88 and 8.35 dS m-1 were associated with a 50% decrease in relative crop yield of dry bean.
Verbatim
e2“A 50% decrease in relative crop yield was caused by EC e values between 4.88 and 8.35 dS m −1”
t0“Dry Bean Response to Salinity in Southern Manitoba”
Claim · model-written summary
High values of apparent soil electrical conductivity (EC a) were associated with high values of soil saturation extract electrical conductivity.
- Treatment
- EC ae3
- Outcome
- high values of soil saturation extract electrical conductivitye3
- Direction
- Highe3
Not reportedTaxon
Verbatim
e3“High values of EC a were associated with high values of soil saturation extract electrical conductivity (EC e )”
Claim · model-written summary
EC a surveys were an excellent tool for assessing relative soil salinity status of dry bean fields, compared with soil saturation extract EC e.
Verbatim
e3“High values of EC a were associated with high values of soil saturation extract electrical conductivity (EC e )”
e4“EC a surveys were found to be an excellent tool for assessing the relative soil salinity status of study fields”
t0“Dry Bean Response to Salinity in Southern Manitoba”
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