@article{fdi:010092275,
  title = {{E}ffect of vapor pressure deficit on growth and yield of pearl millet germplasm originating from semi-arid, semi-humid and humid regions},
  author = {{G}arba, {H}. and {H}amidou, {F}. and {A}bdou, {H}. and {B}urridge, {J}ames and {V}adez, {V}incent},
  editor = {},
  language = {{ENG}},
  abstract = {{I}ntroduction {T}he increase in vapor pressure deficit ({VPD}) is among the expected change in futur climate, and understanding its effect on crop growth is of much significance for breeeding programs. {T}hree groups ({G}1,{G}2 and {G}3) of pearl millet germplasm, originating from regions with different rainfall intensities, were grown in the field during period of high and low {VPD}s. {T}he groups {G}1,{G}2 and {G}3 were respectively from {G}uinean (rainfall above 1000 mm), {S}oudanian (rainfall between 600 mm and 900 mm), and {S}ahelian zones (rainfall between 600 and 300 mm) of {A}frica. {T}he objective was to assess if there was any growth response difference among the germplasm groups. {M}ethod {F}our trials were conducted, two in the dry season of 2019 ({D}s19) and 2020 ({D}s20) with avarage {VPD}s of 3.62 k{P}a and 2.92 k{P}a, respectively, and two in the rainy season of 2019 ({R}s19) and 2020 ({R}s20) with avaerage {VPD}s of 1.14 k{P}a and 0.61 k{P}a, respectively.{R}esults {I}n order to avoid possible confounding effects of radiation on millet growth and yield, data were normalized by the quantity of light received during each season. {A}fter this normalization, leaf area and grain yield decreased in the highest-{VPD} seasons whereas tiller number decreased only in {D}s19 (one high {VPD} season). {T}he comparison of the three germplasm groups indicates that {G}3 the germplasm group from {S}ahelian regions showed greater tolerance to high {VPD} than {G}1 and {G}2.{D}iscussion {G}ermplasm from the {G}3 group could be a good material for developing tolerant germplasm to future climate that is bound to have high {VPD}.},
  keywords = {germplasm ; vapour pressure deficit ; climate change ; breeding ; atmospheric drought ; {INDE} ; {AFRIQUE} ; {NIGER} ; {ZONE} {GUINEENNE} ; {ZONE} {SOUDANNIENNE} ; {ZONE} {SAHELIENNE}},
  booktitle = {},
  journal = {{F}rontiers in {P}lant {S}cience},
  volume = {15},
  numero = {},
  pages = {1465686 [10 p.]},
  ISSN = {1664-462{X}},
  year = {2024},
  DOI = {10.3389/fpls.2024.1465686},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092275},
}