Hengdong Zhang¹, Min Huang^1,*, YingjuanWei², Jiana Chen¹, Shuanglü Shan¹, Fangbo Cao¹, Guanghui Chen¹, Yingbin Zou¹

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 403-412, 2019, DOI:10.32604/phyton.2019.07371

Abstract Amylose content and starch granule size in grains influence rice quality, which differs between the early (ES) and late season (LS). The objective of this study was to determine the variation of amylose content and starch granule size between seasons and find the main reasons (e.g., temperature and solar radiation) for the observed variation. Field experiments with six rice varieties (three high and three low amylose content rice) planted in the ES and LS were conducted in 2016 and 2017, respectively. The mean temperatures during the filling stage were higher in ES, however, the daily temperatures at 7-10 days after… More >

Marina Tsvetova¹, Lev Elkonin^1,*, Yulia Italianskaya¹

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 389-401, 2019, DOI:10.32604/phyton.2019.07485

Abstract Apomictic seed development is a complex process including formation of unreduced embryo sac, parthenogenetic embryo development from the egg cell, and endosperm formation either autonomously, or due to fertilization of polar nuclei by the sperm (under pseudogamous form of apomixis). In the latter case, an obstacle to the normal endosperm development is disturbance of maternal (m) -to-paternal (p) genomic ratio 2m: 1p that occurs in the cases of pollination of unreduced embryo sac with haploid sperms. Usage of tetraploid pollinators can overcome this problem because in such crosses maternal-to-paternal genomic ratio is 4m: 2p that provides formation of kernels with… More >

A. Sattar^1,*, A. Sher^1,*, M. Ijaz¹, M. Irfan², M. Butt¹, T. Abbas¹, S. Hussain², A. Abbas¹, M. S. Ullah³, M. A. Cheema⁴

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 379-388, 2019, DOI:10.32604/phyton.2019.04784

Abstract Application of biochar to agricultural soils is mostly used to improve soil fertility. Experimental treatments were comprised of two factors: i) drought at two level, i.e., 80% and 40% water holding capacity (WHC) which was maintained on gravimetric basis ii) three levels of biochar i.e., control, 2 t ha^-1 and 4 t ha^-1 added to soil. Experimentation was done to examine potential of biochar application to enhance the growth attributes, water relations, photosynthetic pigments and antioxidants activities in maize (Zea mays L.) seedlings. Results of study revealed that biochar application increased the growth qualities (total seedlings biomass, dry weight of… More >

Lijuan Kong^1,2, Haiye Yu^1,2, Meichen Chen^1,2, Zhaojia Piao^1,2, Jingmin Dang¹, Yuanyuan Sui^1,2,*

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 367-378, 2019, DOI:10.32604/phyton.2019.09017

Abstract The particle matter, particularly the suspended particle matter (PM ≤ 2.5) in the air is not only a risk factor for human health, but also affects the survival and physiological features of plants. Plants show advantages in the adsorption of particle matter, while the factors, such as the leaf shape, leaf distribution density and leaf surface microstructure, such as grooves, folds, stomata, flocculent projections, micro-roughness, long fuzz, short pubescence, wax and secretory products, appeared to play an important role determing their absorption capacity. In this paper, the research progress on the capture or adsorption of atmospheric particles was summarized, and… More >

Lina Gogoi¹, Rumi Narzari¹, Nirmali Gogoi², Muhammad Farooq³, Rupam Kataki^1,*

Phyton-International Journal of Experimental Botany, Vol.88, No.4, pp. 349-365, 2019, DOI:10.32604/phyton.2019.08406

Abstract The increasing deforestation with an alarming rate is the prime cause of upsetting the balance in the natural ecosystem and the livelihood of local communities. Sustainable forest management and reforestation efforts can equilibrium this destruction and maintain the protected areas. In this regard, soil management strategies for reforestation of the degraded forest land can be helpful. In this review, the potential of using biochar, a solid carbon rich product of biomass thermochemical conversion, as a soil amendment in forest soils has been discussed. The production procedures of biochar, availability of feedstocks and the biochar properties are discussed using the existing… More >

Pacheco-Aguirre J, E Ruiz-Sánchez, A Reyes-Ramírez, J Cristóbal-Alejo, J Tun-Suárez, L Borges-Gómez

Phyton-International Journal of Experimental Botany, Vol.85, pp. 1-6, 2016, DOI:10.32604/phyton.2016.85.001

Abstract Antagonistic bacteria used as biological control agent may loss effectiveness at the field due to environmental factors such as UV radiation, dryness and high temperature. An inexpensive alternative to protect antagonistic bacteria against such factors is the use of microencapsulating agents. In this work, the effect of microencapsulation of Bacillus subtilis with commercial gums on their antagonistic capacity against Meloidogyne incognita was evaluated. The efficiency of the microencapsulation was verified by the difference between the initial and final concentrations of protein release. The effectiveness as antagonist was evaluated against M. incognita in tomato under greenhouse conditions. The microcapsules based on… More >

Moreno Pérez P^1,3, M Gamboa Angulo¹, G Heredia², B Canto Canché¹, CM Rodríguez García¹, IL Medina Baizabal¹, L Peraza Echeverría¹

Phyton-International Journal of Experimental Botany, Vol.85, pp. 7-14, 2016, DOI:10.32604/phyton.2016.85.007

Abstract Nowadays, it is highly necessary to find more and safer agrochemicals. In this sense, micromycetes are an important source of natural products which could be used to control plant diseases. Therefore with the aims to contribute in this searching of natural products with antimicrobial applications, a total of 49 fungal strains were isolated from the Yucatan Peninsula. These fungi were cultured in fermented rice, their respective organic extracts macerated in ethyl acetate (EAE) and methanol (ME) were obtained and tested against five fungal pathogens of agricultural importance. These included Alternaria chrysanthemi, Colletotrichum gloeosporioides, Mycosphaerella fijiensis, and the bacteria Erwinia carotovora… More >

Bamigboye SO, PM Tshisikhawe, PJ Taylor

Phyton-International Journal of Experimental Botany, Vol.85, pp. 333-336, 2016, DOI:10.32604/phyton.2016.85.333

Abstract Over a long period of time, cycads endemic to Africa have been facing high risk of extinction. Several conservation efforts have been made to reduce the risk of losing these highly endangered species. In this study we review the current risk of extinction of all African cycads species. We calculated the percentages of each category of species found in African cycads using the IUCN (International Union of Conservation of Nature) red list of threatened species 2014 version. We compared our result with that of Donaldson (2003) on percentages of different categories of IUCN for cycads in Africa which was carried… More >

Flores S¹, A Promis², L Faúndez³

Phyton-International Journal of Experimental Botany, Vol.85, pp. 324-332, 2016, DOI:10.32604/phyton.2016.85.324

Abstract Jubaea chilensis (Molina) Baill. (Chilean palm) is an endemic species in Chile. It has been classified as a vulnerable species because of the reduction and the fragmentation of its population numbers, the exploitation of the palms for the production of syrup, the indiscriminate harvest of seed for human consumption, and the reduction of the accompanying native vegetation cover. The southernmost limit of its natural distribution is located in Palmas de Tapihue (Pencahue, Maule region). The objective of this study was to benchmark the conservation status of this population and its accompanying vegetation. The population of J. chilensis in Tapihue was… More >

Masini ACA¹, AE Rovere¹, GI Pirk^1,2

Phyton-International Journal of Experimental Botany, Vol.85, pp. 314-323, 2016, DOI:10.32604/phyton.2016.85.314

Abstract Asteraceae is the most diverse family of vascular plants in the world and the most numerous in Argentina, with 26% of endemic species. Many Asteraceae are pioneer species facilitating the establishment of other species, and several have been employed in restoration. Knowing the characteristics of seeds and their germination is crucial to employ them in restoration projects; hence this study explored basic physiological aspects of the germination of Gutierrezia solbrigii Cabrera and Senecio subulatus D. Don ex Hook. & Arn. var. erectus Hook. & Arn., two endemic shrubs of Argentina, distributed in arid Patagonia. Seeds came from the Reserva Provincial… More >