caa a22 4500 605481016 CHVBK 20210128100418.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s11099-015-0120-7 doi (NATIONALLICENCE)springer-10.1007/s11099-015-0120-7 Influence of drought stress on the photosynthetic characteristics and dry matter accumulation of hybrid millet [Elektronische Daten] [H. Lu, Y. Qiao, X. Gong, H. Li, Q. Zhang, Z. Zhao, L. Meng] In order to elucidate the drought resistance and high-yield mechanism of hybrid millet, we studied the influence of drought stress on the photosynthetic characteristics and dry matter accumulation. Our results revealed that drought stress caused lesser reduction in the net photosynthetic rate, maximal quantum yield of PSII photochemistry, excitation energy capture efficiency of PSII reaction centers and in the yield of hybrid millet compared to normal millet. When drought stress occurred in the jointing stage, the percentage decrease of P N, Fv/Fm, Fv′/Fm′, and the yield of Zhangzagu3 cultivar compared to control were 27.9%, 2.6%, 25. 5%, and 1.9%, respectively, the percentage decrease of Zhangzagu5 were 37.6%, 3.9%, 28.3%, and 16.7%, respectively, the decrease percentage of Datong29 were 60.1%, 6.4%, 4%, and 23.4%, respectively. Hybrid millet showed the similar reduction in the parameters referred above, when drought stress occurred at the heading stage, but the percentage decrease was much higher than that at the jointing stage. We concluded that hybrid millet showed higher drought resistance than normal millet. The Institute of Experimental Botany, 2015 chlorophyll fluorescence nationallicence gas exchange nationallicence Setaria italica (L.) Beauv nationallicence Chl : chlorophyll nationallicence CR : control nationallicence DS : drought stress nationallicence E : transpiration rate nationallicence Fv/Fm : maximal quantum yield of PSII photochemistry nationallicence Fv′/Fm′ : excitation energy capture efficiency of PSII reaction centers nationallicence g s : stomatal conductance nationallicence LA : leaf area nationallicence Nmc : normal millet cultivar nationallicence P N : net photosynthetic rate nationallicence qP : photochemical quenching coefficient nationallicence TLA : total leaf area nationallicence WUE : instantaneous water-use efficiency nationallicence Zha3 : Zhangzagu3 nationallicence Zha5 : Zhanzagu5 nationallicence ΦPSII : actual photochemical efficiency of PSII nationallicence Lu H. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut Qiao Y. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut Gong X. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut Li H. Department of Mathematics and Physics, Hebei Institute of Architecture and Civil Engineering, 075024, Zhangjiakou, China aut Zhang Q. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut Zhao Z. Zhangjiakou Academy of Agricultural Sciences, 075000, Zhangjiakou, China aut Meng L. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut Photosynthetica The Institute of Experimental Biology of the Czech Academy of Sciences 53/2(2015-06-01), 306-311 0300-3604 53:2<306 2015 53 11099 https://doi.org/10.1007/s11099-015-0120-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11099-015-0120-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lu H. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut NATIONALLICENCE 700 1- Qiao Y. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut NATIONALLICENCE 700 1- Gong X. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut NATIONALLICENCE 700 1- Li H. Department of Mathematics and Physics, Hebei Institute of Architecture and Civil Engineering, 075024, Zhangjiakou, China aut NATIONALLICENCE 700 1- Zhang Q. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut NATIONALLICENCE 700 1- Zhao Z. Zhangjiakou Academy of Agricultural Sciences, 075000, Zhangjiakou, China aut NATIONALLICENCE 700 1- Meng L. Agriculture and Forestry Technologically College, Hebei North University, 075131, Zhangjiakou, China aut NATIONALLICENCE 773 0- Photosynthetica The Institute of Experimental Biology of the Czech Academy of Sciences 53/2(2015-06-01), 306-311 0300-3604 53:2<306 2015 53 11099