Seed Germination of Populations of Wild Wheat Species, Aegilops biuncialis and Ae. triuncialis: Effects of Salinity, Temperature and Photoperiod

Due to their multipurpose use, leguminous trees are desirable for the restoration of degraded ecosystems. Our aim was to investigate seed germination of the leguminous tree Prosopis chilensis in response to salinity, one of the major abiotic challenges of desertified soils. Germination percentages of seed from 12 wild P. chilensis populations were studied. Treatments included four aqueous NaCl concentrations (150, 300, 450, and 600 mM). In each population, the highest germination percentage was seen using distilled water (control), followed closely by 150 mM NaCl. At 300 mM NaCl or higher salt concentration, germination was progressively inhibited attaining the lowest value at 450 mM NaCl, while at 600 mM NaCl germination remained reduced but with large variation among group of samples. These results allowed us to allocate the 12 groups from where seeds were collected into three classes. First, the seeds from Huanta-Rivadavia showed the lowest percent germination for each salt condition. The second group was composed of moderately salt-tolerant seeds with 75% germination at 300 mM NaCl, followed by 50% germination at 450 mM NaCl and 30% germination at 600 mM NaCl. The third group from Maitencillo and Rapel areas was the most salt tolerant with an impressive seed germination level of 97% at 300 mM NaCl, 82 % at 450 mM NaCl, and 42 % at 600 mM NaCl. Our results demonstrate that P. chilensis seeds from these latter localities have an increased germination capability under saline stress, confirming that P. chilensis is an appropriate species to rehabilitate desertified soils.

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The Potential of Algarrobo (Prosopis chilensis (Mol.) Stuntz) for Regeneration of Desertified Soils: Assessing Seed Germination Under Saline Conditions

Westphal

Gachón

Bravo³

et al. 2015

Environmental Management

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Identification of alleles at the gliadin loci Gli-U1 and Gli-M b 1 in Aegilops biuncialis Vis.

2012

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Assessment of Aegilops biuncialis Vis. accessions for flowering time

Козуб¹,

Созинов²,

Sozinova³

et al. 1970

Fakt. eksp. evol. org.

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The aim of the study was to assess diversity in flowering time in Aegilops biuncialis Vis. accessions from different localities of the Crimea. Methods. Ae. biuncialis accessions were grown on the experimental plot (Kyiv region). The state of heading and flowering was recorded during 5 years. The accessions were assigned to three groups: early-flowering, late-flowering and intermediate. A total of 127 accessions were assessed. Results. The early-flowering group included mainly Ae. biuncialis accessions from the eastern part of the area of the species. The majority of accessions from the southern and western-southern regions were assigned both to late-flowering and intermediate groups with a slight predominance of late-flowering. Conclusions. Differences in flowering time were revealed among Ae. biuncialis accessions from different localities of the Crimea. Samples from Kara-Dag are the most early-flowering, which is possibly due to adaptation to very droughty hot conditions. The diversity of the genetic collection of Ae. biuncialis was characterized with respect to flowering time.

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Seed Germination of Populations of Wild Wheat Species, Aegilops biuncialis and Ae. triuncialis: Effects of Salinity, Temperature and Photoperiod

Cited by 3 publications

References 30 publications

The Potential of Algarrobo (Prosopis chilensis (Mol.) Stuntz) for Regeneration of Desertified Soils: Assessing Seed Germination Under Saline Conditions

The Potential of Algarrobo (Prosopis chilensis (Mol.) Stuntz) for Regeneration of Desertified Soils: Assessing Seed Germination Under Saline Conditions

Identification of alleles at the gliadin loci Gli-U1 and Gli-M b 1 in Aegilops biuncialis Vis.

Assessment of Aegilops biuncialis Vis. accessions for flowering time

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