Mona H. Soliman¹, Taghreed S. Alnusaire², Nessreen F. Abdelbaky^3,4, Aisha A. M. Alayafi⁵, Mirza Hasanuzzaman^6,*, Mohamed M. Rowezak², Mohamed El-Esawi⁷, Amr Elkelish⁸

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08795

Abstract Salt stress is one of the major abiotic stress in plants. However, traditional approaches are not always efficient in conferring salt tolerance. Experiments were conducted to understand the role of Trichoderma spp. (T. harzianum and T. viride) in growth, chlorophyll (Chl) synthesis, and proline accumulation of C. pepo exposed to salinity stress. There were three salt stress (50, 100, and 150 mM NaCl) lavels and three different Trichoderma inoculation viz. T. harzianum, T. viride, and T. harzianum + T. viride. Salt stress significantly declined the growth in terms of the shoot and root lengths; however, it was improved by the… More >

Ejaz Ahmad Waraich^1,*, Zeeshan Ahmed^2,3, Zahoor Ahmad⁴, Rashid Ahmad¹, Murat Erman⁵, Fatih Cig⁵, Ayman El Sabagh^5,6

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08734

Abstract Camelina (Camelina sativa L.) is famous for its oil quality and unique fatty acid pattern. Growth and yield of crops reduced under water deficit conditions. Environmental threat such as drought or water deficit condition is the emerging problem which creates the negative impact on the growth of plants. Based upon the current situation a pot study was performed in rain out-shelter to explore the effect of different plant densities (15, 10 and 5 plants per pot) on growth and seed yield of two camelina genotypes under normal (100% WHC) and water deficit (60% WHC) conditions by using completely randomized design… More >

Noor Ahmad^1,*, Rana Nadeem Abbas¹, Asif Tanveer¹, Zulfiqar Ahmad Saqib²

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08536

Abstract Parthenium poses serious threat to modern crop production system and necessitate evaluating control practices for its effective management. Efficacy of different weed control practices for controlling parthenium was explored in conventional and deep tillage systems in the field conditions. Hand hoeing (20 and 35 days after emergence), S-Metolachlor (pre-emergence herbicide), sorghum straw mulch @ 5 tons ha^-1 and combination of hand hoeing and sorghum straw mulch (hand hoeing at 20 and straw mulch at 35 days after emergence) were used as weed control practice. Weedy check where no weed control measure was applied was also included in this experiment for… More >

Akwasi Yeboah¹, Jiannong Lu¹, Ting Yang¹, Yuzhen Shi¹, Hanna Amoanimaa-Dede¹, Kwadwo Gyapong Agyenim Boateng², Xuegui Yin^1,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.09267

Abstract Increased urbanization and industrialization have greatly contributed to the emission of higher amount of heavy metals such as cadmium, nickel, and lead into the environment. These metals are non-biodegradable and toxic, causing much effects on plants and by extension to animals and humans, which have become a major global concern. The inherent ability of plants to resist heavy metal toxicity seems to be the most sustainable and cost-effective strategy. Castor plant is widely studied due to its tolerance to the effects of heavy metal contaminated soils, owing to its large biomass content and high accumulating capacity. Castor plants to some… More >

Mahmuda Binte Monsur¹, Nasrin Akter Ivy¹, M. Moynul Haque², Mirza Hasanuzzaman³, Ayman EL Sabagh^4,5,*, Md. Motiar Rohman^6,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.09144

Abstract The research was conducted to investigate comparative oxidative damage including probable protective roles of antioxidant and glyoxalase systems in rice (Oryza sativa L.) seedlings under salinity stress. Seedlings of two rice genotypes: Pokkali (tolerant) and BRRI dhan28 (sensitive) were subjected to 8 dSm⁻¹ salinity stress for seven days in a hydroponic system. We observed significant variation between Pokkali and BRRI dhan28 in phenotypic, biochemical and molecular level under salinity stress. Carotenoid content, ion homeostasis, antioxidant enzymes, ascorbate and glutathione redox system and proline accumulation may help Pokkali to develop defense system during salinity stress. However, the activity antioxidant enzymes particularly… More >

Zahoor Ahmad^1,*, Ejaz Ahmad Waraich², Celaleddin Barutçular¹, Akbar Hossain³, Murat Erman⁴, Fatih ÇIĞ⁴, Hany Gharib⁵, Ayman EL Sabagh^{4, 5, *}

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.09143

Abstract The main objective of the research is to assess the role of foliar application of silicon (Si) for enhancing the survival ability of wheat under drought stress through improving its morphology, physicochemical and antioxidants activities. Treatments were five doses of Si at the rate of 2, 4, 6 and 8 mM and a control. After completion of seeds germination, pots were divided into four distinct groups at various field capacity (FC) levels, such as 100% FC (well-irrigated condition), 75% FC (slight water deficit), 50% FC (modest water deficit) and 25% FC (severe water deficit stress condition). Foliar application of Si… More >

Riaz Ahmad¹, Muhammad Akbar Anjum^1,*, Rashad Mukhtar Balal²

Phyton-International Journal of Experimental Botany, Vol., , pp. 183-204, DOI:10.32604/phyton.2020.08537

Abstract Molecular markers, genome sequencing and genome editing are considered as efficient tools to accomplish demands of plant breeders for crop improvement programs. Morphological and biochemical markers have not been extensively used as these are greatly influenced by environmental factors. Different molecular markers and sequencing techniques are routinely used in evaluation of genetic diversity and evolutionary relationship, accurate classification or taxonomy, characterization of germplasm, identification of hybrids and phylogenetic studies. Desired and undesired traits controlled by genes can be identified through different molecular markers technology all over the globe. These molecular markers are well established and have successfully been used for… More >

Muhammad Zafar-ul-Hye^1,*, Misbah Batool Zahra¹, Subhan Danish¹, Mazhar Abbas², Abdur Rehim¹, Muhammad Naeem Akbar¹, Ayesha Iftikhar¹, Mehreen Gul¹, Ifat Nazir¹

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08918

Abstract Rhizosphere bacteria that colonize plant roots and confer beneficial effects are referred as plant growth promoting rhizobacteria (PGPR). Among all PGPR, some rhizobacteria have an ability to produce ACC deaminase enzyme. This enzyme catalyzes stress ACC into a-ketobutyrate and ammonia instead of letting it to be converted to ethylene. Ethylene level rises in plants under stress conditions i.e., drought, salinity, poor soil fertility etc. As poor soil fertility is a big hurdle to achieve the optimum yield of crops, inoculation of ACC deaminase PGPR can overcome this problem to some extent. The aim of the current study was to examine… More >

Fatih M. Tok¹, Sibel Dervis^2,*, Halit Yetisir³

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08801

Abstract Forty-four V. dahliae isolates were collected from symptomatic vascular tissues of okra plants each from a different field in eight provinces located in the eastern Mediterranean and western Anatolia regions of Turkey during 2006- 2009. Nitrate-nonutilizing (nit) mutants of V. dahliae from okra were used to determine heterokaryosis and genetic relatedness among isolates. All isolates from okra plants were grouped into two vegetative compatibility groups (VCGs) (1 and 2) and three subgroups as 1A (13.6%, 6/44), 2A (20.5%, 9/44) and 2B (65.9%, 29/44) according to international criteria. Pathogenicity tests were performed on a susceptible local okra (A. esculentus) landrace in… More >

Subhan Danish^1,2, Muhammad Zafar-ul-Hye^1,*

Phyton-International Journal of Experimental Botany, Vol., , DOI:10.32604/phyton.2020.08523

Abstract Most of the cereal crops are widely cultivated to fulfil the humans food requirements. Under changing climate scenario, the intensity of drought stress is continuously increasing that is adversely affecting the growth and yield of cereal crops. Although the cereals can tolerate moderate drought to some extent, but mostly they are susceptible to severe drought stress. Higher biosynthesis of ethylene under drought stress has been reported. Many scientists observed that inoculation of 1-aminocyclopropane-1-carboxylate (ACC) deaminase producing plant growth promoting rhizobacteria (PGPR) is an efficacious tool to overcome this problem. These PGPR secrete ACC deaminase which cleavage the ACC into the… More >