Efficacy of 1 mM humic (HA) and salicylic (SC) acids on SC 260 705 corn seedlings to alleviate drought stress via polyethylene glycol was studied hydroponics at Shiraz University, Iran in a factorial, randomized design, with four replicates each. Under stress, had higher electrolyte leakage compared 705, exogenous application HA combined SA decreased leakage. As general trend, photosynthetic pigment content, relative water root shoot length, mean number diameter central peripheral metaxylem,...

In order to examine the effects of source restriction and drought stress on yield components, flag leaf chlorophyll content Relative Water Content (RWC) wheat cultivars, a greenhouse experiment was carried out at Shiraz University, Shiraz, Iran, during 2009-2010. The cultivars including Bahar, Pishtaz, Sistan Yavaros were sown in 5 kg plastic pots. manipulation treatments control (C), defoliation all leaves (D1), except (D2) penultimate (D3), imposed anthesis. Results showed that decreased...

Adjusting the planting date is an inexpensive and effective method to mitigate possible effects of water stress. A 2-year field study was conducted investigate dates on biochemical physiological characteristics yield safflower (Carthamus tinctorius L.) under stress in 2018 2019 growing seasons. The treatments consisted three (December 6 26 January 15), irrigation regimes (normal irrigation, cut-off at flowering seed filling) two cultivars (Goldasht Isfahan). During period, pigment content,...

A hydroponic study of maize cv. SC 705 was performed to determine the effectiveness 1.0 mM sodium silicate alleviate drought stress. Measurements were taken between 5 and 100 mm above base third leaf. Stress negatively affected all growth parameters. As a general trend, Na2SiO3 foliar application increased parameters for stressed, but not un-stressed plants, compared control. Leaf cross sectional area 35%, midrib decreased 25% less than in untreated stressed Protoxylem treated,...

A two-year field trial was set up to investigate the effects of applying 3 tons ha

Infrared thermometry allows evaluating water status of the crop by measuring stress index (CWSI), without need physical contact to leaves. In order quantify CWSI and finding best irrigation regime a two-year field experiment was conducted in safflower during 2017 2018 growing seasons at Darab, Fars province, Iran. Two cultivars (Goldasht Local Isfahan) four regimes consisted well-watered [Irrigation based on 100% capacity (FC)], mild (75% FC), severe (50% most (25% FC) were arranged as split...

The aim of the present study was to test whether salinity, which can impact through its osmotic stress component on ability plants take up water, affects root water transport properties (hydraulic conductivity) in bread wheat (Triticum aestivum L). Hydroponically grown were exposed 100mM NaCl when they 10-11 days old. Plants analysed during vegetative stage development 15-17 old and system consisted entirely seminal roots, 22-24 old, by time adventitious roots had developed. Root hydraulic...

Prediction of barley yield is an attempt to accurately forecast the outcome a specific situation, using as input information extracted from set data features that potentially describe situation.In this study, has been made analyze and compare multiple linear regression (MLR), artificial neural network (ANN) including m ulti-layer p erceptron (MLP) r adial basis function (RBF) models predicting biological (BY) (Y) barely.Data was collected literatures on subject production existed in...

Biochars are cost effective, carbonaceous amendments that can immobilize potentially toxic elements (PTEs) in soils. Application of silicon (Si) has been shown to mitigate the effect soil PTEs on plants. Studies interaction effects Si and biochars PTE-contaminated soils limited. Thus, aim this study was investigate biochars, from sheep manure (SMB) rice husk (RHB) produced at 300 500 °C, 2 levels (as sodium (Na) metasilicate), growth chemical composition corn (Zea mays) a nickel...

Rice seed deterioration rate due to aging is correlated with ambient temperature, relative humidity, and moisture. Eight cultivars were analyzed for differences in via accelerated ageing at 45°C 100% humidity (RH) 24, 48, 72, 96, 120 hr. Khazar Neda had highest germination percentages when exposed hr ageing. For Lenjan, increased ageing, moisture content from 9.8% the control 21.7% after treatment. Shiroudi lowest decrease shoot length. Root length decreased 0 treatment, was Fajr Khazar....

To investigate the effects of irrigation regimes on assimilate remobilization, water use efficiency (WUE), relative content (RWC), photosynthesis and yield five wheat cultivars, a field experiment was conducted at Shiraz University during 2008 2009 growing seasons. The experimental design randomized complete block treatments were arranged as split-plot in three replicates. There four levels regime including well-watered [irrigation based 100% capacity (FC)], excess watered (125% FC), mild...

Relay intercropping of legumes with cereals is a useful technique for yield increment. Intercropping may affect the photosynthetic pigments, enzyme activity and barley chickpea under water stress. To investigate effect relay on pigment content, stress, field experiment was conducted during 2017 2018. The treatments included irrigation regimes (normal cutting off at milk development stage) as main plot. Also, cropping systems sub plot consisted sole in two sowing dates (December vs January)....

Field studies were conducted at Shiraz, Iran, during 2000 and 2001 to investigate the effect of separate combined herbicide treatments on weed control corn yield. Separate included 14 combinations applied two rates. Herbicides reduced biomass compared with weedy check. In both years, maximum reduction in was observed atrazine plus alachlor 1 + 2.44 1.5 1.92 kg ai/ha minimum rimsulfuron 0.02 0.04 kg/ha. 2001, 2,4-D MCPA 0.36 0.31 0.54 0.46 kg/ha, controlled 80 100% field bindweed kg/ha 17 70%...

Abstract Germination and seedling emergence are critical stages in plant growth cycle due to their effect on crop stand eventual yield. In the present investigation, effects of increasing applications sodium chloride (NaCl) germination, seedlings establishment at early stages, respiration were studied 20 wheat lines/cultivars. Seeds germinated grown black covers using distilled water as control. NaCl was applied concentrations 8 16 dS m−1 for 48 hours. Experimental design factorial...

Effects of silicon (Si) priming at 0, 0.5, 1.0, and 1.5 mM on germination, ion balance, root structure two durum wheat cultivars 100, 200 sodium chloride (NaCl) was conducted in a laboratory. An aliquot NaCl with Si improved Behrang cultivar germination from 54 to 88%, but Yavaros only 49 85%. In Behrang, the control length increased 5.07 7.11 mm when treated Si, 3.18 4.09 mm. accumulated less (Na+) more potassium (K+). For mean diameter central peripheral metaxylem cells, benefitted...

The efficacy of humic acid (HA) and jasmonic (JA) application to modulate the adverse effects water stress on pigment content, relative content (RWC), antioxidant enzyme activity, ion balance two triticale genotypes (ET-83-3 ET-84-8) was investigated in a pot experiment under controlled conditions. Application both HA JA ET-84-8, increased chlorophyll b 19.9 21% stress, respectively. Carotenoid also from 7.7 mg/g fresh weight 9.5 stress. Furthermore, catalase (CAT) peroxidase (POD)...