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Responses of photosynthetic rates to genotypic differences in sink-to-source ratios in upland cotton (Gossypium hirsutum L.)



Responses of photosynthetic rates to genotypic differences in sink-to-source ratios in upland cotton (Gossypium hirsutum L.)



Environmental and Experimental Botany 34(3): 245-252



Five cotton genotypes differing in sink-to-source ratios were grown in the field at Lubbock, Texas. Photosynthetic rate was estimated at mid-morning and mid-afternoon with 14CO2 gas exchange on the uppermost fully expanded mainstem leaf. Seven measurments of photosynthetic rate were made at intervals commencing 52 d after sowing (DAS) and terminating 104 DAS. At each sampling date solar irradiance, leaf and air temperature and leaf conductance were also measured.

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Accession: 002688161

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DOI: 10.1016/0098-8472(94)90045-0


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