J 2013

Inherent variability in structural and functional traits of xylem among three hop varieties

JUPA, Radek, Milan BALÁŽ, Petr SVOBODA and Vít GLOSER

Basic information

Original name

Inherent variability in structural and functional traits of xylem among three hop varieties

Authors

JUPA, Radek (203 Czech Republic, belonging to the institution), Milan BALÁŽ (203 Czech Republic, belonging to the institution), Petr SVOBODA (203 Czech Republic) and Vít GLOSER (203 Czech Republic, guarantor, belonging to the institution)

Edition

Plant, Soil and Environment, Praha, Czech Academy of Agricultural Sciences, 2013, 1214-1178

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.113

RIV identification code

RIV/00216224:14310/13:00066445

Organization unit

Faculty of Science

UT WoS

000319569300007

Keywords in English

Humulus lupulus; hydraulic conductivity; vessel diameter; vessel length

Tags

Tags

International impact, Reviewed
Změněno: 24/10/2013 15:12, RNDr. Milan Baláž, Ph.D.

Abstract

V originále

Intervarietal differences in xylem structure could significantly affect water transport as well as vulnerability to cavitations and thus crop yield. Evaluation of crop varieties with respect to the specific traits can be thus helpful in breeding and agricultural practice. In the present study we compared basic anatomical traits (vessel length and diameter) as well as theoretical and measured hydraulic conductivities (K) of xylem in stems of three hop varieties (Agnus, Saaz hop - Osvald's clone 31, Vital). There were no statistically significant intervarietal differences in measured K (overall mean 1.68 x 10(-6) m(4)/MPa/s), the ratio between K and theoretical conductivity (mean = 0.194), as well as vessel diameter and vessel length distributions. The only noticeable difference was in the distribution of vessels with the diameter = 100 mu m which differed in Vital compared to Agnus or Osvald's clone 31 (Kruskal-Wallis test, P < 0.001). Our results thus indicate highly conservative nature of xylem basic functional and anatomical characteristics in hop varieties studied.

Links

GA206/09/1967, research and development project
Name: Analysis of xylem hydraulic constraints on water status and gas exchange in hop plants
Investor: Czech Science Foundation, Analysis of xylem hydraulic constraints on water status and gas exchange in hop plants