J. Liñán's scientific contributions

Publications (19)

Article
Full-text available
Holm oak (Quercus ilex L.), a typical evergreen tree of the Mediterranean area, is very important due to its ecological and economical values. Propagation of this species is extremely difficult and traditionally carried out only by seed germination. In this work, mature acorns were germinated in vitro and in peat substrate in aseptic and non-asepti...
Article
A comparative embryological study on two Spanish cultivars and one growing in Bulgaria of Olea europaea was carried out. The embryo sac develops according to Allium (bisporic)-type. The critical phases during the development of male and female gametophyte that lead to sterility and abortiveness of the embryo sacs and ovules are reported. The embryo...
Article
Full-text available
Main processes governing the plant-soil interactions in adult olive (Olea europaea L.) trees under fertigation were studied to better understand the response of the trees to this agricultural practice widely used in new olive orchards. Our final objective was to obtain soundly based scientific evidences for a rational choice of the fertilizer dose....
Article
This work aims to know the effect of the Glomus intraradices fungus substratum inoculation on the survival, development and nutritive status of cassava, grape and olive plants during hardening. Micropropagated plants of cassava, grape and olive were transplanted individually to 2 L pots filled half of them with steamy sterilized soil and the other...
Article
Full-text available
For olive genetic improvement work it is very important to obtain a high rate of seed germination and a shortening of the juvenile period of the plants raised. By in vitro embryo culture, a 100% of germination is attained in a few days and the supply of adequate nutritive solutions and photoperiod speeds up seedling development during hardening, th...
Article
Zygotic mature olive embryos from olive plants growing in the World Olive Plant Collection of Cordoba (Spain) and in high salinity marshes, were cultured in vitro on 1/3 MS medium with different NaCl concentrations: 0, 4, 6 and 8 g L-1 (0, 68.4, 102.6 and 136.9 mM respectively). Close to 100% of the embryos cultured in control medium formed normal...
Article
Full-text available
Rhododendron ponticum subsp. baeticum is endemic in the southern region of the Iberian Peninsula. The relict populations of this species are vulnerable, due mainly to difficult conditions for the establishment of seedlings, resulting in a virtual lack of sexual recruitment. In order to preserve the surviving populations, in vitro culture methods ha...
Article
In vitro culture methods were used to germinate olive embryos prior to maturation. Fruit, seed and embryo development were established with consecutive sampling from 20 to 100 days after bloom. For that same period, embryo development and germination success were determined by in vitro culture trials using one-third strength MS medium with or witho...
Article
Angelica pancicii (Vands.) is an endemic, endangered, protected species in Bulgaria. This situation is mainly due to the excess of harvesting and the difficulties of seed germination and plant propagation. Seeds from mature fruits harvested in different areas of Bulgaria were used as plant material. Later in Seville (Spain) the seeds were subjected...
Article
The feasibility and anatomical development of an in vitro olive cleft-graft method were studied. Grafting survival after 60 d in vitro was 85% which then dropped slightly to 67% after hardening. Three days after grafting, callus formation was observed along the cut surfaces of the rootstock and scion, after 6 d the first healing cellular unions wer...
Article
The effect of different N forms on the growth of olive seedlings in the greenhouse was studied. KNO3, NH4NO3 and (NH4)2SO 4 at different concentrations, as well as two types of substrates, sterile sand and a sand-peat mixture (1: 1), were tested. In sterile sand, with N concentrations higher than 5 mM, serious damage was observed in the plants, so...
Article
The germination potential of olive seeds without the sclerified endocarp (stoneless seeds) and growth of the seedlings were compared with germination and growth of excised and in vitro cultured embryos of ten olive cultivars. The number of empty stones and the number of stones with two seeds were also determined for each of the cultivars. Isolated...
Article
4 paginas, 1 tabla, 1 referencia.-- Proceedings of the I International Symposium on Olive Growing/International Society for Horticultural Science, Fruit Section-Working Group on Olive.-- Sociedad Espanola de Ciencias Horticolas.-- International Society for Horticultural Science.-- Simposio celebrado del 26-29 de septiembre 1989, en Cordoba, Espana.

Citations

... Six different culture media were used to establish in vitro cultures of shoot tips: MS-0, Murashige and Skoog (1962) basal medium containing no growth regulators; MS-1, the same basal medium supplemented with 2 mg/l 6-benzyladenine (BA); C 2 D as described by Chée et al. (1984), also enriched with 2 mg/l BA; MS*/2, as used by Spiegel-Roy et al. (1985) containing 1.76 mg/l of 3-indolacetic acid (IAA) and 0.346 mg/l of gibberelic acid (GA 3 ), AND*, as proposed by Troncoso et al. (1988) with 0.1 mg/l naphtalenacetic acid (NAA) and 1 mg/l BA added; and, fi nally, C1*, also used by Troncoso et al. (1990), supplemented with 0.5 mg/l BA. To establish in vitro cultures of nodal segments MS-1 medium was used only. ...
... Due to differences between growth and development phases within cultivars, the germination responses of embryos could be different (Linan et al., 1999). However, in this experiment cultivars showed similar response of seed germination percent and seedling formation percent in each harvesting time, therefore it can be concluded that embryo growth phases of these three cultivars were approximately similar. ...
... Previous works testing single cultivars grafted on a range of potential interesting rootstocks indicate that the intrinsic vigor of some rootstock is transferred to the grafted cultivar. However, opposite results were also found in some cases, although it should be noted that explicit evaluation of vigor of the rootstock used was not carried out but based on previous literature (Troncoso et al., 1990;Romero et al., 2014). Similarly, different vigor control ability has been obtained for some rootstocks depending on the cultivar grafted, while a general dwarfing effect was observed for some others (Pannelli et al., 2002). ...
... Hence, In vitro propagation of endangered plants can offer considerable benefits for the rapid cultivation of species that are at risk, that have limited reproductive capacity and exist in threatened habitats (Fay, 1992). In vitro propagation methods are essential components of plant genetic resource management and they are becoming increasingly important for conservation of rare and endangered plant species (Sudha et al.,1998;Benson et al., 2000;Iankova et al., 2001;Bhatia et al., 2002).The Dendrobium fimbriatum is the second largest genus of Orchidaceae, which is composed of approximately 1500 species scattered in the world, and there is the most popular and highly valued orchids in the market (Chen and Ji, 1998). In vitro propagation of Dendrobium fimbriatum. ...
... Apart from the influence of AMF on nutrient uptake, other positive aspects of mycorrhization include raise of plant growth (Pasqualini et al., 2007;Sheng et al., 2009;Shokri and Maadi, 2009), increase of the rate of photosynthesis and transpiration, greater stomatal conductance (Caravaca et al., 2003;Wu and Zou, 2010), enhancement of nursery and post-trans planted response and decrease of transplanting stress (Carretero et al., 2009;, increase of plant tolerance to drought (Marulanda et al., 2007), salt stress (Sheng et al., 2009) and serpentine edaphic stress (Doubkova et al., 2012), as well as protection from nematodes attack , improvement of water use efficiency (Bolandnazar et al., 2007) and amelioration of fruit quality (Nzanza et al., 2012). ...
... Biotechnological tools like in vitro tissue culture provides an alternate way of screening of plants under in vitro conditions by exposing seeds, embryos or other explants to mediums provided with salts at different concentrations, without any interference with soil or climate [42]. In this study, preconditioned plumular apices of Halisbey cv. of peanut were exposed to different concentrations of NaCl and KCl under in vitro conditions with the objective to screen the explants that could tolerate with minimum loss in their activity and in vitro regeneration. ...
... Plants were obtained by micropropagation of axillary buds from individuals of the three study plants described above, according to López et al. (2004). The resulting plants were adapted to outdoor conditions following Cantos et al. (1993), transferred to individual plastic pots (diameter 11 cm) filled with perlite and placed in a glasshouse with minimum-maximum temperatures of 21-25°C, relative humidity of 40-60 % and natural daylight (minimum and maximum light flux: 200 and 1000 μmol m −2 s −1 , respectively). Pots were carefully irrigated with 20 % Hoagland's solution (Hoagland and Arnon 1938) as required. ...
... In particular a specific medium for recalcitrant olive varieties has been defined by undertaking an analysis of mineral elements in embryos or young shoots (Rugini, 1984). In spite of the extensive studies, the In vitro propagation of Olea europea species is still limited due to poor growth, slow lateral bud outgrowth and variable rooting ability of the explants (Rugini & Fedeli, 1990;Sarmiento et al., 2001;Saida et al., 2005). The problem is compounded by intraspecific variation in tissue culture responses between different cultivars. ...
... Wild relatives of the domesticated olive tree (Olea europaea L.) are evergreen, drought tolerant, usually multi-stemmed small trees or large shrubs with very good adaptability to different environmental conditions (Médail et al., 2001;Green, 2002;Kassa et al., 2019). Wild olives grow in arid and semiarid regions at different altitudes and soil types, including those exposed to severe water deficit, salinity and low temperatures (Cantos et al., 2002;Baldoni et al., 2006;Klepo et al., 2013;Belaj et al., 2016;Chiappetta et al., 2017). This adaptability to adverse environmental conditions makes wild olive trees suitable to grow in marginal soils (e.g., at risk of desertification), to colonize deforested habitats or to rehabilitate devastated regions (Bekele, 2005;Kassa et al., 2019). ...
... Our results related to plant growth are in accordance with many publications on olive that showed that plant growth (i.e., shoot length, total leaf area, dry weight, root length, and rooting ability) is inhibited by moderate and high salinity (Marin et al. 1995;Chartzoulakis 2005, Kchaou et al. 2010, 2013. Nitrogen is the most important mineral element in fertilization program because plants usually need N in greater amounts than other mineral nutrients (Hagag, Shahin, and El-Migeed 2011) with beneficial effects on vegetative growth which presumably reduces the non-productive phase (Garcia et al. 1999;Centeno et al. 2018). Several studies have been conducted to determine the appropriate rate and source for nitrogen fertilization for young olive trees. ...