Pearl Millet Forage Water Use Efficiency
Pearl millet (<i>Pennisitum glaucum</i> L.) is a warm season C<sub>4</sub> grass well adapted to semiarid climates where concerns over scarce and depleting water resources continually prompt the search for water efficient crop management to improve water use efficiency (WUE)....
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/10/11/1672 |
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| author | Bradley Crookston Brock Blaser Murali Darapuneni Marty Rhoades |
| author_facet | Bradley Crookston Brock Blaser Murali Darapuneni Marty Rhoades |
| author_sort | Bradley Crookston |
| collection | DOAJ |
| description | Pearl millet (<i>Pennisitum glaucum</i> L.) is a warm season C<sub>4</sub> grass well adapted to semiarid climates where concerns over scarce and depleting water resources continually prompt the search for water efficient crop management to improve water use efficiency (WUE). A two-year study was conducted in the Southern Great Plains, USA, semi-arid region, to determine optimum levels of irrigation, row spacing, and tillage to maximize WUE and maintain forage production in pearl millet. Pearl millet was planted in a strip-split-plot factorial design at two row widths, 76 and 19 cm, in tilled and no-till soil under three irrigation levels (high, moderate, and limited). The results were consistent between production years. Both WUE and forage yield were impacted by tillage; however, irrigation level had the greatest effect on forage production. Row spacing had no effect on either WUE or forage yield. The pearl millet water use-yield production function was y = 6.68 × x (mm) − 837 kg ha<sup>−1</sup>; however, a low coefficient of determination (<i>r</i><sup>2</sup> = 0.31) suggests that factors other than water use (WU), such as a low leaf area index (LAI), had greater influence on dry matter (DM) production. Highest WUE (6.13 Mg ha<sup>−1</sup> mm<sup>−1</sup>) was achieved in tilled soil due to greater LAI and DM production than in no-till. |
| first_indexed | 2024-03-10T15:14:46Z |
| format | Article |
| id | doaj.art-4eb23ea1ebc341c5a3a061e43d6a66b0 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T15:14:46Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-4eb23ea1ebc341c5a3a061e43d6a66b02023-11-20T18:59:22ZengMDPI AGAgronomy2073-43952020-10-011011167210.3390/agronomy10111672Pearl Millet Forage Water Use EfficiencyBradley Crookston0Brock Blaser1Murali Darapuneni2Marty Rhoades3Department of Plants, Soils and Climate, Utah State University, Logan, UT 84322, USADepartment of Agricultural Sciences, West Texas A&M University, Canyon, TX 79016, USADepartment of Plant and Environmental Sciences, New Mexico State University, Tucumcari, NM 88401, USADepartment of Agricultural Sciences, West Texas A&M University, Canyon, TX 79016, USAPearl millet (<i>Pennisitum glaucum</i> L.) is a warm season C<sub>4</sub> grass well adapted to semiarid climates where concerns over scarce and depleting water resources continually prompt the search for water efficient crop management to improve water use efficiency (WUE). A two-year study was conducted in the Southern Great Plains, USA, semi-arid region, to determine optimum levels of irrigation, row spacing, and tillage to maximize WUE and maintain forage production in pearl millet. Pearl millet was planted in a strip-split-plot factorial design at two row widths, 76 and 19 cm, in tilled and no-till soil under three irrigation levels (high, moderate, and limited). The results were consistent between production years. Both WUE and forage yield were impacted by tillage; however, irrigation level had the greatest effect on forage production. Row spacing had no effect on either WUE or forage yield. The pearl millet water use-yield production function was y = 6.68 × x (mm) − 837 kg ha<sup>−1</sup>; however, a low coefficient of determination (<i>r</i><sup>2</sup> = 0.31) suggests that factors other than water use (WU), such as a low leaf area index (LAI), had greater influence on dry matter (DM) production. Highest WUE (6.13 Mg ha<sup>−1</sup> mm<sup>−1</sup>) was achieved in tilled soil due to greater LAI and DM production than in no-till.https://www.mdpi.com/2073-4395/10/11/1672optimum water useforage |
| spellingShingle | Bradley Crookston Brock Blaser Murali Darapuneni Marty Rhoades Pearl Millet Forage Water Use Efficiency Agronomy optimum water use forage |
| title | Pearl Millet Forage Water Use Efficiency |
| title_full | Pearl Millet Forage Water Use Efficiency |
| title_fullStr | Pearl Millet Forage Water Use Efficiency |
| title_full_unstemmed | Pearl Millet Forage Water Use Efficiency |
| title_short | Pearl Millet Forage Water Use Efficiency |
| title_sort | pearl millet forage water use efficiency |
| topic | optimum water use forage |
| url | https://www.mdpi.com/2073-4395/10/11/1672 |
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