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Liečivé rastliny v meniacich sa environmentálnych podmienkach

Liečivé rastliny v meniacich sa environmentálnych podmienkach

Liečivé rastliny v meniacich sa environmentálnych podmienkach

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Vliv abiotických a biotických stresorů na vlastnosti rostlin 11.5.2005<br />

/12/ Sachl, J., Kopecký, J. : Využití závlahy ke zvyšování výnosů chmele. Chmelařství, 45,<br />

1972 (5) : 75 - 77.<br />

/13/ Slavík, L.: Využití kapkové závlahy a mikropostřiku při zavlažování chmele. Rostlinná<br />

výroba, 46, 2000 (10): 457 – 463.<br />

/14/ Slavík, L., Kopecký, J. : Vliv kapkové závlahy na výnos chmele. Rostlinná výroba, 40,<br />

1994 (1) : 13 - 18.<br />

/15/ Vent, L. et al. : Chmelařství - organizace a technologie výroby. SZN Praha, 1963.<br />

/16/ Zázvorka, V., Zima, F. : Chmelařství. SZN Praha, 1956.<br />

The influence of abiotic and biotic stresses<br />

Key words: water deficit – rate of photosynthesis – rate of transpiration – hop plants<br />

Summary<br />

Hop plants (Osvaldův klon 72) were cultivated in field at Hop Research Institute at Stekník.<br />

The trial had four variants. The first variant was controlled conditions – non –irrigation (N).<br />

The second variant of the trial included subsurface irrigation (S). The third variant of the trial<br />

represented the variant with trickling irrigation (T). The last variant included the microirrigation<br />

(M). Immediate rate of photosynthesis and transpiration was measured<br />

gasometrically in open system by the apparatus LCA-4. The statistically significantly<br />

decrease of photosynthesis by hop plants in the variant non – irrigation compared with the<br />

variant with irrigation. The variants with irrigation increased the rate of photosynthesis<br />

compared with the control by 19.57 %. If we evaluate the effect of variants of hop plants<br />

transpiration, it can be <strong>sa</strong>id that the rate of transpiration decreased significantly in the variant<br />

non – irrigation compared with variants with irrigation.<br />

Poděkování<br />

Tyto výsledky jsou součástí grantového projektu financovaného NAZV č. QF 3179/2003<br />

a výzkumným záměrem MSM 6246070901.<br />

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