Influence of parental and teacher acceptance on students' achievement in the Mississippi Delta

Introducing alternative cultivars with enhanced water use efficiencies can help alleviate pressure on groundwater for crop irrigations in Mississippi (MS) Delta. A two-year field study was conducted in 2019–2020 to compare the water use efficiencies (WUE) of recently released and pre-released soybean {Glycine max (L.) Merr.} cultivars in maturity group (MG) III (‘P37A78’, ‘LG03-4561-14’), IV (‘Dyna-gro 4516x’, ‘DS25-1, DT97-4290’), and V (‘S12-1362’, ‘S14-16306’) in the MS Delta. The experimental design was a split-plot with cultivar as the first factor and the second factor was water variant irrigation (IR) and no irrigation (RF, rainfed), replicated three times. The MG IV cultivar Dyna-gro 4516x recorded the highest grain yield and WUE: grain yields were 4.58 Mg ha−1 and 3.89 Mg ha−1 under IR and RF, respectively in 2019, and 4.74 Mg ha−1 and 4.35 Mg ha−1 in 2020. The WUE were 7.2 and 6.9 kg ha−1 mm−1, respectively, in 2019 under IR and RF, and 13.4 and 16.9 kg ha−1 mm−1 in 2020. The data reveals that ‘Dyna-gro 4516x’ (MG IV), ‘LG03-4561-14’ (MG III), and ‘P37A78’ (MG III) are best adapted to the early soybean production system (ESPS) in MS Delta region for sustainable production for conserving water resources.

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Benzobicyclon carryover to crops in the Mississippi Delta

cftm ◽

10.1002/cft2.20026 ◽

2020 ◽

Vol 6 (1) ◽

Author(s):

Jason K. Norsworthy ◽

Mason L. Young

Keyword(s):

Mississippi Delta

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A Growth and Yield Model for Improved Eastern Cottonwood Plantations in the Lower Mississippi Delta

Southern Journal of Applied Forestry ◽

10.1093/sjaf/15.4.213 ◽

1991 ◽

Vol 15 (4) ◽

pp. 213-216 ◽

Cited By ~ 7

Author(s):

Quang V. Cao ◽

Kenneth M. Durand

Keyword(s):

Populus Deltoides ◽

Mississippi Delta ◽

Basal Area ◽

Site Index ◽

Growth And Yield ◽

Annual Increment ◽

Yield Model ◽

Eastern Cottonwood ◽

Volume Yield ◽

Growth And Yield Model

Abstract A compatible growth and yield model was developed based on remeasurement data collected from 183 plots on unthinned improved eastern cottonwood (Populus deltoides Bartr.) plantations in the lower Mississippi Delta. The Sullivan and Clutter (1972) equation form was selected for predicting cubic-foot volume yield and projecting volume from site index and initial age and basal area. Yield equations explained 97% and 94%, respectively, of the variations in total outside bark and merchantable inside bark volumes. Mean annual increment of merchantable volume culminated between 8 and 15 years, depending on site index and initial basal area. South. J. Appl. For. 15(4):213-216.

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