Kleingrass, Blue Panic, and Vine Mesquite

Tischler, C. R.; Ocumpaugh, W. R.

doi:10.2134/agronmonogr45.c18

Cited by 6 publications

(9 citation statements)

References 101 publications

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“…The introduction of new forage species in grassland ecosystems outside their range of origin depends on the possibility of successful establishment and forage productivity in the pasture (Baron and Bélanger 2007). Chloris gayana Kunth and Panicum coloratum L. are two grass species of African tropical and subtropical origin (Bogdan 1969;Tischler and Ocumpaugh 2004) with incipient incorporation into natural temperate grasslands prone to flooding. This introduction has been facilitated over recent years by the occurrence of warm summers and less restrictive winters with increasing minimum temperatures and shorter freezing periods due to global warming (Long 1999; Chapman et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Ability to recover overrides the negative effects of flooding on growth of tropical grasses Chloris gayana and Panicum coloratum

et al. 2015

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This study assessed the flooding tolerance of the tropical grasses Chloris gayana Kunth and Panicum coloratum L. at different times of the year: (i) late winter flooding for 50 days (WF), (ii) early spring flooding (SF) for 20 days, and (iii) long-term flooding covering both periods (WF + SF, 70 days). A growth period under well-watered conditions was allowed after each flooding event to assess recovery of plant species. Plants were harvested after each flooding event and at the end of the recovery period. Panicum coloratum had higher tolerance to WF than C. gayana. Treatment WF did not affect biomass in P. coloratum, whereas it reduced biomass of flooded plants by 38% in C. gayana. Treatment SF did not differentiate the species for tolerance; both registered moderate reduction in their growth (20–30%). Under WF + SF, C. gayana showed additional reduction in its growth over that observed when subjected separately to either WF or SF, whereas P. coloratum did not. Both species displayed remarkably fast recovery from flooding when temperatures rose during early summer, attaining biomass equivalent to that of non-flooded plants 1 month after water subsided. Therefore, although P. coloratum appears slightly more tolerant during flooding than C. gayana, both species are promising for introduction in temperate lowland grasslands.

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Section: Introductionmentioning

confidence: 99%

Ability to recover overrides the negative effects of flooding on growth of tropical grasses Chloris gayana and Panicum coloratum

et al. 2015

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“…Panicum coloratum L. is a C4 perennial grass native to tropical Africa (Jones, ), and it is adapted to a wide range of soil and rainfall conditions. It is considered drought and frost tolerant (Tischler and Ocumpaugh, ), yet information on salt tolerance for this species is relatively scant and more knowledge on this aspect and its physiological determinants would be useful to enable breeding of this species for salt‐affected areas.…”

Section: Introductionmentioning

confidence: 99%

“…coloratum (Armando et al ., ). Members of the complex have been introduced as forage grasses into several countries, including Argentina, Australia, Japan, Mexico and USA (Tischler and Ocumpaugh, ). While P. coloratum cv.…”

Section: Introductionmentioning

confidence: 99%

Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants

Pittaro

Andreu

Bruno

et al. 2015

Grass and Forage Science

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This work assessed intracultivar variability for salt tolerance within Panicum coloratum cv. Klein, explored some physiological parameters potentially associated with it and evaluated the contribution of cell division and expansion to the decreased leaf length observed under salinity. Individual plants that had survived severe stress environments in an established pasture were collected and clonal families were obtained by vegetative propagation. These were evaluated in a greenhouse, in pots with an inert substrate irrigated with nutrient solution containing 0, 200 or 400 mm NaCl. Salt tolerance was assessed from growth variables expressed as a percentage of non‐salinized controls. Changes induced by salinity in carbon fixation, soluble sugars and compatible solutes were also measured. The selected plants showed 33% higher salt tolerance than plants from the same cultivar obtained from seeds, and variability for salt tolerance was detected within the group, suggesting these plants could be valuable germplasm for breeding programmes for saline areas. All selected plants accumulated low leaf blade Na concentrations (< 0·1 mm g−1 dry weight on average), and K concentrations tended to remain high under salinity. A kinematic analysis indicated a reduction in the number of cells in the division‐only zone was the main cause of shorter leaves under stress. Although plants showed some differences in all these traits, they were not related to salt‐tolerance variability within this group of stress‐tolerant plants.

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“…This difference could be expected as var. makarikariense was originated in the flood plains of Lake Makarikari in northeastern Botswana, and therefore it probably adapted to exposure to salinity and frequent periods of waterlogging (Tischler & Ocumpaugh, 2004).…”

Section: Differences Between Varietiesmentioning

confidence: 99%

“…Panicum coloratum var. makarikariense develops well on heavy soils prone to waterlogging and can tolerate periods of drought followed by flooding (Tischler & Ocumpaugh, 2004). On the other hand, P. coloratum var.…”

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confidence: 99%

Combined effect of salinity and hypoxia in seedlings of two varieties of Panicum coloratum: Morphology, root system architecture, oxidative damage and antioxidant response

Lifschitz

Tommasino

Zabala

et al. 2021

Annals of Applied Biology

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The effect of the combination of salinity and waterlogging may be additive, or alternatively, more or less detrimental than effects of them separately. Our objective was to evaluate the effects of waterlogging, salinity and the combination of both on seedlings of Panicum coloratum, a subtropical forage grass. Seedlings of cultivars Kapivera INTA (KA) and Klein (KL) were exposed to treatments in a controlled hydroponic experiment and several morphological and physiological variables evaluated.The effect of hypoxia was almost null when the plants were already in salinity. KA showed lower reduction than KL in shoot biomass. Both varieties showed synergistic effect of stresses, indicating that biomass production was less affected under the combined treatment than predicted from them separately. Root length, tips, forks and volume were reduced by saline exposure, while no differences in root architecture was noticeable between cultivars. Plants of KA increased leaf temperature in salinity. Nonenzymatic oxidative response and the activity of antioxidant enzymes increased in saline conditions and were lower in KA than in KL. Oxidative damage was equivalent between cultivars and among stress conditions. Proline content was comparable to control in hypoxia but increased significantly in saline conditions, with a higher response in KL than in KA. Increases in Na + (over 900%) and decreases in K + (50%) tissue concentration in salinity occurred only in KA. In general, P. coloratum proved more tolerant to hypoxia than to salinity or their combination, KA being more tolerant than KL. Findings provide basis to deepen research into tolerance mechanisms.

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Kleingrass, Blue Panic, and Vine Mesquite

Cited by 6 publications

References 101 publications

Ability to recover overrides the negative effects of flooding on growth of tropical grasses Chloris gayana and Panicum coloratum

Ability to recover overrides the negative effects of flooding on growth of tropical grasses Chloris gayana and Panicum coloratum

Salt tolerance variability among stress‐selected Panicum coloratum cv. Klein plants

Combined effect of salinity and hypoxia in seedlings of two varieties of Panicum coloratum: Morphology, root system architecture, oxidative damage and antioxidant response

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