Chlorophyll fluorescence quick variation c:m be used as a valuable index for evaluati~n of plants tolcrance to environmental stresses. In order evaluate chlorophyll fluctuations 'of different wheat cultivars under water-limited condition, factorial experiment with randomized complete block design was performed in Karaj, Iran. Treatments were seven irrigation regimes and three bread four replications. The measurements parameters done on flag leaves about weeks after flowering. Photo-system II...

To evaluate the herbage yield and silage quality of sorghum as affected by nitrogen irrigation levels, a 2-yr experiment (2017–2018) was conducted in semi-arid region Iran. Three levels (supply 100, 75, 50% soil moisture deficit I100, I75, I50) three (150, 300, 450 kg urea ha−1 N150, N300, N450) were evaluated. Increasing increased green (GHY), water use efficiency (IWUE), lactic acid (LA), propionic (PA), digestible organic matter (DOM), crude protein (CP), metabolizable energy (ME) but...

Problem statement: In order to evaluate drought stress and methanol on yield components of soybean in field experiments with factorial experiment inform a randomized complete block design three replication faculty agricultural Islamic Azad University Karaj, at 2008. First factor were sprayed aqueous solutions 0 (control), 7, 14.21, 28 35% (v/v) by 3 times during growth season 12 days intervals shoot soybean. Second condition two levels 40 70% base depletion available soil moisture. Approach:...

For study the effects of different levels irrigating according to 0, 25, 50 and 75% field capacity amount food less demand’s elements in number 5 Rapeseed (Brassica napus) line this experiment randomized complete block design had been executed at 2002-2003 research agricultural university Varamin, Azad University. The needed fertilizer consumed soil analysis test site. At end for determining each element caring, leaf samples transferred laboratory necessary examination performed. result...

Problem statement: Many cultivated area are situated in arid zone, where crop photosynthesis and productivity has limited by drought.Thus any treatment, such as methanol, that improve plant water relation reduce stress impacts, could be benefit.Approach: In order to investigate effects of methanol application on some physiological properties soybean under low stress, a factorial experiment was done at Research Field Faculty Agriculture Natural Resources, Islamic Azad University-Karaj Branch,...

This study is aimed at the comparison between three plants, namely, Grass pea (Lathyrus sativus) , Alfalfa (Medicago sativa and Sainfoin (Onobrychis vicifolia) their ability in absorbing heavy metals such as lead copper for process of phytoremediation. In addition, knowledge plants using detoxification mechanism phytochelatin (plant-metal chelating) was also studied. The experiment carried out factorially randomized complete design research greenhouse Agricultural Natural Resources Faculty,...

To assess the response of winter oilseed rape promising line genotypes to late-season drought stress in delayed cultivation conditions and select superior genotypes, an experiment was conducted for two years (2015-16 2016-17) Iran (Karaj). In this experiment, sowing date specified levels including timely (October 7) 27) irrigation factor normal interruption from podding stage as factorial main plots four (L1030, L1204, L1110, L1114) a commercial cultivar (Okapi) were categorized subplots....

Addressing water scarcity and the need for high-quality forage in arid regions necessitates development of efficient irrigation techniques. This study assesses impact various methods on performance water-use efficiency (IWUE) sorghum cultivars under water-deficit conditions a semi-arid region Iran during 2019 2020 cropping seasons. Three methods-variable alternate furrow (AFI), fixed (FFI), conventional (CFI)-were evaluated alongside three levels drought stress (severe stress: I50, moderate...

The production of sufficient animal feed in arid and semi-arid regions plays a significant role food security these areas. present study was conducted based on the hypothesis that intercropping sorghum amaranth, comprising relatively drought tolerant forages, will enhance yield quality under limited irrigation water availability.Implementation fixed alternate furrow (FFI) (AFI) resulted saving 22.5% 19.7% water, respectively. However, declined both forage. In conventional (CFI), highest dry...

In order to study of changing macro elements in water stress condition an experimental design was carried out effect different levels irrigation (0, 25, 50, 75) percentage Field Capacity (FC) on (N, P, K) 5 rapeseed genotypes (PF7045-01, Symbol, Mohican, Hyola-42, Syn-1). The split plot Randomized Complete Block with 4 replication at 2004. Investigation Varamin university field research. information gain about the yield grain, number pods per plant, seeds pods, weight 1000 oil and oil. At...

The purpose of the present study was to investigate effect plant growth-promoting rhizobacteria(PGPR) on physiological and biochemical properties maize (Zea mays L.) in different cultivation methods under water stress. experiment carried out as split-plot design including stress (well-watered, mild stress, severe stress) main plot also (transplanting direct seeding) PGPR application (uninoculated inoculated with Pseudomonas putida) subplots.Water decreased biological kernel yield. In seeding...