Water, Water Everywhere: Perceptions of Chaotic Water Regimes in Northeastern Siberia, Russia

Sedelnikovaea baicalensis, the Siberian-Central Asian lichen species, is recorded for the first time for Europe. Based on all the known localities, including those first-time reported from Baikal Siberia, the peculiarities of the ecology and distribution of this species are discussed, the map of its distribution is provided. It is concluded that the species was erroneously considered earlier as a Central Asian endemic. The center of the present range of this lichen is the steppes of Southern Siberia and Mongolia. Assumptions are made that S. baicalensis is relatively young (Paleogene-Neogene) species otherwise it would have a vast range extending beyond Asia, and also that the Yakut locations of this species indicate that in the Pleistocene its range was wider and covered a significant part of the Northeastern Siberia but later underwent regression. Based on the fact that in the mountains of Central Asia the species is found only in the upper mountain belts, it is proposed to characterize it as «cryo-arid xerophyte» in contrast to «arid xerophytes». A conclusion is made that the presence of extensive disjunctions of S. baicalensis range between the Southern Pre-Urals and the Altai-Sayan Mountains or the Mountains of Central Asia is unlikely; the lichen is most likely to occur in the Urals and most of Kazakhstan.

Download Full-text

QTL Analysis for Yield Components and Kernel-Related Traits in Maize under Different Water Regimes

ACTA AGRONOMICA SINICA ◽

10.3724/sp.j.1006.2010.01832 ◽

2010 ◽

Vol 36 (11) ◽

pp. 1832-1842 ◽

Cited By ~ 2

Author(s):

Bo PENG ◽

Yang WANG ◽

Yong-Xiang LI ◽

Cheng LIU ◽

Zhi-Zhai LIU ◽

...

Keyword(s):

Qtl Analysis ◽

Yield Components ◽

Water Regimes

Download Full-text

Establishment of Three Emergent Macrophytes Under Different Water Regimes

Water Science & Technology ◽

10.2166/wst.1999.0167 ◽

1999 ◽

Vol 40 (3) ◽

pp. 233-240 ◽

Cited By ~ 1

Author(s):

S. G. T. Giovannini ◽

D. M. L. da Motta Marques

Keyword(s):

Water Level ◽

Aquatic Macrophytes ◽

Water Regime ◽

Emergent Macrophytes ◽

Morphological Response ◽

Water Regimes ◽

Wetland Construction ◽

Scirpus Californicus ◽

Level 3 ◽

Plot Design

The behavior of three emergent aquatic macrophytes under different water regimes was studied with the aim of achieving reconvertion of degraded wetlands and wetland construction for water quality improvement. Scirpus californicus, Typha subulata and Zizaniopsis bonariensis establishment was evaluated under a split plot design, in a factorial experiment with three levels of a water regime factor over a subsoil substratum. The stagnant 10±2 cm water level was best suited to T. subulata and Z. bonariensis development and S. californicus developed better at oscillating water level (3±2 cm) with flooding at 48 hour intervals. The morphological response variables (thickness and width at half length of the tallest leaf or stem per plant, height of tallest leaf or stem per plant, number of green leaves or stems and number of shoots per plant, and survival of propagules' original leaves or stems) were satisfactory descriptors to differentiate (p<0.1%) growth of above ground parts as related to water regimes and species. The three species did survive satisfactory in subsoil-like substratum under the tested water regimes. Mortality was in the worse case, 17.2%, 36.7%, and 9.4% for S. californicus, T. subulata, and Z. bonariensis, respectively. Although Z. bonariensis growth was very poor, only S. californicus and T. subulata could be indicated for planting under similar limiting conditions.

Download Full-text

Changes in equilibrium line altitude of glacier systems in Northeastern Siberia for the late 20th–early 21st centuries.

Earth`s Cryosphere ◽

10.21782/ec2541-9994-2018-6(49-55) ◽

2018 ◽

Vol XXII (6) ◽

Keyword(s):

Equilibrium Line ◽

Equilibrium Line Altitude ◽

Northeastern Siberia

Download Full-text

Responses of a C3 and a C4 perennial grass to elevated CO2 and temperature under different water regimes

Global Change Biology ◽

10.1111/j.1365-2486.1996.tb00047.x ◽

1996 ◽

Vol 2 (1) ◽

pp. 35-47 ◽

Cited By ~ 49

Author(s):

H. W. HUNT ◽

E. T. ELLIOTT ◽

J. K. DETLING ◽

J. A. MORGAN ◽

D.-X. CHEN

Keyword(s):

Elevated Co2 ◽

Perennial Grass ◽

Water Regimes ◽

Elevated Co2 And Temperature

Download Full-text

Quinoa for the Brazilian Cerrado: Agronomic Characteristics of Elite Genotypes under Different Water Regimes

Plants ◽

10.3390/plants10081591 ◽

2021 ◽

Vol 10 (8) ◽

pp. 1591

Author(s):

Patrícia Carvalho da Silva ◽

Walter Quadros Ribeiro Junior ◽

Maria Lucrecia Gerosa Ramos ◽

Sonia Maria Costa Celestino ◽

Alberto do Nascimento Silva ◽

...

Keyword(s):

Grain Quality ◽

Winter Season ◽

Field Conditions ◽

Water Restriction ◽

Water Regimes ◽

Agronomic Characteristics ◽

Relative Water ◽

Different Seasons ◽

The Relationship

Quinoa stands out as an excellent crop in the Cerrado region for cultivation in the off-season or irrigated winter season. Here, we tested the effects of different water regimes on the agronomic characteristics, physiology, and grain quality of different elite quinoa genotypes under field conditions. The experiment was conducted under field conditions at Embrapa Cerrados (Planaltina, DF, Brazil). The experimental design was in randomized blocks, in a split-plot scheme, with four replications. The plots were composed of 18 quinoa genotypes and modified BRS Piabiru (the currently used genotype), and the split-plots were divided into 4 different water regimes. The following variables were evaluated: productivity and productivity per unit of applied water (PUAA), plant height, flavonoids, anthocyanins, gas exchange, chlorophyll, leaf proline, and relative water content. Our results showed that water regimes between 309 and 389 mm can be recommended for quinoa in the Cerrado region. CPAC6 and CPAC13 presented the highest yield and PUAA under high and intermediate WRs, and hence were the most suitable for winter growth under irrigation. CPAC17 is most suitable for off-season growth under rainfed conditions, as it presented the highest PUAA under the low WRs (247 and 150). CPAC9 stood out in terms of accumulation of flavonoids and anthocyanins in all WRs. Physiological analyses revealed different responses of the genotypes to water restriction, together with symptoms of stress under lower water regimes. Our study reinforces the importance of detailed analyses of the relationship between productivity, physiology, and water use when choosing genotypes for planting and harvest in different seasons.

Download Full-text