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Spent mushroom compost (SMC), a byproduct of commercial mushroom cultivation, poses serious environmental problems that have hampered the growth of this important agro-industry. In an effort to develop new applications for SMC, we explored its use as a feedstock for bioethanol production. SMC constitutes approximately 30%w/w polysaccharides, 66% of which is glucan. Following dilute-acid pretrea...
Annual Sainfoin (Onobrychis crista-galli (L.) Lam.) is widely adapted to moderate and cold regions of Iran and naturally grows in pasture and rangelands used for forage in these areas. In order to study the effects of priming on seed germination and seedling growth in O. crista-galli, two factorial experiments were conducted based on a randomized complete design with three replications under la...
Background & Aim: Because of seed germination ability of medicinal plants seed is low and, generally exposed to problem. Priming is one of the techniques that help seeds to be germinated faster and uniformly. Experimental: A laboratory experiment was carried out on germination and growth improvement in Heracleum persicum Desf. by seed osmo-primming in Seed Technology Labora...
ABSTRACT- Improper seed germination is a serious challenge for medicinal herbs under drought stress conditions in semi-arid and arid regions. A new group of plant growth regulators known as karrikins have been proved useful to improve seed germination in some plants. In this regard, the effects of karrikin on seed germination and vigor of three medicinals under drought stress were examined. See...
In order to investigate the effects of seed priming by plant growth regulators( salicylic acid, spermine and spermidine) on some physiological and biochemical characteristics of Okra (Abelmoschus esculentus CV Basenti) under low temperature stress a completely randomized design was conducted at 2014. Experimental treatments include priming of okra seeds with 0.1 mM concentration of Salicylic Ac...
Effects of hormonal priming with abscisic acid (ABA), salicylic acid (SA), or ascorbic acid on wheat (Triticum aestivum cv. Auqab 2000) germination and seedling growth under normal (4 dS/ cm) and saline (15 dS/ cm) conditions were studied to determine their usefulness in increasing relative salt-tolerance. During germination test, most of treatments were effective in improving germination and s...
Introduction Osmotic imbalance is one of the major consequences drought stress, negatively affecting plant growth and productivity. Acetic acid has modulatory roles in osmotic balance plants; however, mechanistic insights into acetic acid-mediated adjustment under stress remains largely unknown. Methods Here, we investigated how seed priming seedling root treatment with enabled maize plants ove...
abstract in this thesis at first we comput the determinant of hankel matrix with enteries a_k (x)=?_(m=0)^k??((2k+2-m)¦(k-m)) x^m ? by using a new operator, ? and by writing and solving differential equation of order two at points x=2 and x=-2 . also we show that this determinant under k-binomial transformation is invariant.
Detection of effective germination factors on valuable rangeland species is essential in rangelands rehabilitation and restoration projects. This study evaluates the effects of physiological drought stress induced by Poly Ethylene Glycol 6000 (PEG) and alternative temperature on germination percentage and germination speed of Hedysarum criniferum Boiss, a valuable native legume in summer highla...
Phase diagrams and the compositions of coexisting phases of poly(ethylene glycol) (PEG) 6000 + sodium succinate + water system have been determined experimentally at 298.15, 308.15, and 318.15 K. The effects of temperature on the binodal curve and tie lines have been studied. The binodal curves were successfully fitted to a nonlinear equation relating the concentrations of PEG 6000 and sodium s...
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