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2. Effects of fertilization on leaf photosynthetic characteristics and grain yield in tartary buckwheat Yunqiao1

Creator:
Wang, C., She, H. Z., Liu, X. B., Hu, D., Ruan, R. W., Shao, M. B., Zhang, L. Y., Zhou, L. B., Zhang, G. B., Wu, D. Q., and Yi, Z. L.
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
chlorofyl, chlorophyll, hnojiva, index listové plochy, rychlost čisté fotosyntézy, produktivita, výnos zrna, pohanka, fertilizers, leaf area index, net photosynthetic rate, productivity, grain yield, buckwheat, 2, and 581
Language:
Multiple languages
Description:
Tartary buckwheat (Fagopyrum tataricum Gaertn) has been praised as one of green foods for humans in the 21st century. Effects of fertilization on leaf photosynthetic characteristics and grain yield of tartary buckwheat has not been yet reported in detail. Our experiment was set as a split-plot factorial. The main plots and subplots were designed by fertilizer ratio and rate as: NPK 1:1:1 (A1), NPK 1:4:2 (A2), NPK 1:2:3 (A3), and 300 (B1), 450 (B2), and 600 (B3) kg (NPK) ha-1. Our results showed that the grain yield was significantly and positively correlated with the net photosynthetic rate (PN), stomatal conductance (gs), transpiration rate (E), PAR, stomatal limitation value (Ls), chlorophyll content (SPAD value), and leaf area index (LAI), while significantly and negatively correlated with intercellular CO2 concentration (Ci) and water-use efficiency (WUE). The grain yield, PN, gs, E, PAR, Ls, SPAD, and LAI increased and then decreased with enhanced fertilization, and their maximum values appeared in the A2B2 treatment. The Ci and WUE decreased and then increased with enhanced fertilization, and their minimum values appeared in the A2B2 treatment. Our results suggested that fertilization had significant effects on the leaf photosynthetic capacity and grain yield of tartary buckwheat Yunqiao1, and the best fertilization strategy was 450 kg ha-1 with NPK 1:4:2., C. Wang, H. Z. She, X. B. Liu, D. Hu, R. W. Ruan, M. B. Shao, L. Y. Zhang, L. B. Zhou, G. B. Zhang, D. Q. Wu, Z. L. Yi., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Foreign ownership and corporate performance: the Czech Republic at EU entry

Creator:
Jurajda, Štěpán, Stančík, Juraj, Univerzita Karlova. Centrum pro ekonomický výzkum a doktorské studium, and Národohospodářský ústav (Akademie věd ČR)
Publisher:
CERGE-EI
Format:
electronic and 29 s.
Type:
model:monograph and TEXT
Subject:
Ekonomie, produktivita, ekonomická efektivnost, vlastnické vztahy, zahraniční investice, 330.13, 005.61, 334.72, 339.727.22, (048.8), 4, and 33
Language:
English and Czech
Description:
Štěpán Jurajda, Juraj Stančík., České resumé, Projekt je financován Evropským sociálním fondem, rozpočtem hl. města Prahy a státním rozpočtem, and born digital
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Growth and photosynthetic responses of soybean seedlings to maize shading in relay intercropping system in Southwest China

Creator:
Su, B. Y., Song, Y. X., Song, C., Cui, L., Yong, T. W., and Yang, W. Y.
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
fotosyntéza, produktivita, sója, kukuřice, photosynthesis, productivity, soybean, Čína jihovýchodní, China, Southeastern, carbon accumulation, chlorophyll a fluorescence, photosynthetic pigment, planting pattern, intercropping system, maize, 2, and 581
Language:
Multiple languages
Description:
Intercropping, a traditional and worldwide cropping practice, has been considered as a paradigm of sustainable agriculture based on complementary mechanisms among different crop species. Soybean (Glycine max) is widely relay intercropped about 60 days before maize (Zea mays) harvest in Southwest China. However, shade caused by tall maize plants may be a limiting factor for soybean growth at a seedling stage. In field research, we studied the ecophysiological responses of two widely cultivated soybean varieties [Gongqiudou494-1 (GQD) and Gongxuan 1 (GX)] to maize shading in a relay intercropping system (RI) compared with monocropped soybean plants (M). Our results showed that soybean seedlings intercropped with maize exhibited significantly downregulated net photosynthetic rate (PN) (-38.3%), transpiration rate (-42.7%), and stomatal conductance (-55.4%) due to low available light. The insignificant changes in intercellular CO2 concentration and the maximum efficiency of PSII photochemistry suggested that the maize shading-induced depressions in PN were probably caused by the deficiency of energy for carbon assimilation. The significantly increased total chlorophyll (Chl) content (+27.4%) and Chl b content (+52.2%), with lowered Chl a/b ratios (-20.5%) indicated soybean plants adjusted their light-harvesting efficiency under maize shading condition. Biomass and leaf area index (LAI) of seedlings under RI decreased significantly (-78.7 and -71%, respectively) in comparison with M. Correlation analysis indicated the relative reduction in biomass accumulation was caused by the decline in LAI rather than PN, it affected negatively the final yields of soybean (32.8%). Cultivar-specific responses to maize shading were observed in respects of LAI, biomass, and grain yield. It indicated that GX might be a better cultivar for relay intercropping with maize in Southwest China., B. Y. Su, Y. X. Song, C. Song, L. Cui, T. W. Yong, W. Y. Yang., and Obsahuje bibliografii
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

5. Immigration and innovation: Chinese graduate students in U.S. universities

Creator:
Gaulé, Patrick and Piacentini, Mario
Publisher:
CERGE-EI
Format:
electronic, svazek, and 30 stran
Type:
model:monograph and TEXT
Subject:
Ekonomie, výzkum a vývoj, Číňané, emigrace a imigrace, doktorské studium, produktivita, research and development, Chinese, emigration and immigration, doctor's degree, productivity, Spojené státy americké, United States, 001.89, 314.15-026.44, (=581.11), 378.245, 005.61, (73), (048.8), 4, and 33
Language:
English and Czech
Description:
Patrick Gaulé, Mario Piacentini., Obsahuje bibliografii a bibliografické odkazy, and Český a anglický abstrakt
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

8. Learning-by-exporting or managerial quality?: evidence from the Czech Republic

Creator:
Saxa, Branislav, Univerzita Karlova. Centrum pro ekonomický výzkum a doktorské studium, and Národohospodářský ústav (Akademie věd ČR)
Publisher:
CERGE-EI
Format:
electronic and 34 s.
Type:
model:monograph and TEXT
Subject:
Ekonomie, vývoz, produktivita, Česko, 339.564, 005.61, (048.8), 4, and 33
Language:
English
Description:
Branislav Saxa. and born digital
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

9. Nákladovosť, produktivita a vplyvy tepelných spôsobov rezania na vlastnosti konštrukčnej ocele

Creator:
Harničárová, Marta, Valíček, Jan, and Zajac, Jozef
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
thermally interfered area, productivity, cost, tepelne ovplyvnená oblasť, produktivita, and nákladovosť
Language:
Czech
Description:
This work compares thermal cutting processes from the point of view of a thermal interference depth of the cut edge effective for construction steel EN S355J0 and deals with a cost and productivity of various cutting technologies. Results allow to estimate the technologies on the base of the mechanical changes in the cut edges, to determine their advantages and drawbacks and to look inside the technical/qualitative process characteristics. and Práca sa zaoberá vzájomným porovnaním tepelných spôsobov rezania materiálov z hľadiska ich vplyvu na dosiahnutú hĺbku tepelného ovplyvnenia hrany rezu u konštrukčnej oceli typu EN S355J0, nákladovosti a produktivity práce jednotlivých technológií rezania materiálov. Z výsledkov je možné porovnať tieto technológie z hľadiska zmeny ich mechanických vlastností na hrane rezu, určiť výhody, nevýhody daných technológií a oboznámiť sa s technicko-kvalitatívnymi charakteristikami procesov.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

10. Non-parametric analysis of technical efficiency: factors affecting efficiency of West Java rice farms

Creator:
Brázdik, František
Publisher:
CERGE-Charles University and Academy of Sciences of the Czech Republic. Economics Institute
Format:
electronic and 45 s.
Type:
text, volume, studie, model:monograph, and TEXT
Subject:
Kombinatorika. Teorie grafů. Matematická statistika. Operační výzkum. Matematické modelování, farmy, matematické modelování, produktivita, pěstování rostlin, 631.115.1, 633/635, 005.61, 519.673, (048.8), 13, and 519
Language:
English
Description:
František Brázdik.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

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