Investigating Growth of Frankenia thymifolia as a Cover Plant During Drought Stress in Different Growth Media and Irrigation Periods
There are some plants can replaced grass among cover plants. Cover plants are obvious solution of problem in these places that the most important plant is Frankinia and Lisimakia etc. The aim of this study is to use organic wastes, biological fertilizers and moisture super absorbents in the growth media of Frankinia to increase water holding capacity, delay in permanent wilting point and drought stress control. The experiment was carried out during drought stress out of greenhouse in open space in 2017. A factorial experiment based on Randomized Completely Design with two factor was conducted. First factor was three periods of irrigation in 2 and 4 days and one week, second factor was different growth media including: 1. 90% soil+10% manue, 2. 70% soil, 15% manure+ 15% vermicompost, 3. 70% soil, 15% manure+ 15% vermicompost + 1 g/kg stockosorb (super absorbent), 4. 50% soil, 25% manure+ 25% vermicompost and 5. 50% soil, 25% manure+ 25% vermicompost + 1 g/kg super absorbent. Rooted transplants of Frankinia in pots (diameter 12 cm and height 15 cm) were planted in boxes 30×30 cm numbered 6 every box. Morphological traits including longest branch, total number of lateral branches, dry and fresh weight of shoot, prolin, leaf relative water and the concentration of K, P, Fe and Zn in shoot and uptake of these nutrients by shoot, were measured. The growth media were analyzed for pH, EC, organic carbon, total nitrogen, C/N ratio and P and K available. Results showed the mixture 50-50 of soil and organic compounds (composted manure and vermicompost) is used as the growth medium. Using one g/kg superabsorbent in cited medium in compared with control medium (irrigation period 2 days), can increase irrigation period to one week.
Plant growth promoting bacteria effects on growth, photosynthetic pigments and root nutrients uptake of Avena sativa L. under drought stress
Drought stress is one of the most important factors affecting plant growth. Plant growth under drought stress may be enhanced by the application of microbial inoculation including plant growth promoting rhizobacteria. This research was conducted as a factorial experiment in a completely randomized design. The first factor included the bio-fertilizer (A. vinelandii (A)), P. agglomerans+ P. ...متن کامل
Effects of different periods of starvation and compensatory growth on growth indices and hematological parameters in common carp (Cyprinus carpio).
Starvation periods of fish in during the developmental stages on growth indices and blood factors can be affected. The effects of compensatory growth on growth indices and physiological responses (glucose, total protein and cholesterol), study for 8 week investigated in Juveniles of common carp (Cyprinus carpio). The fish were divided in 4 experimental groups with initial weight (13/88±0/88 gr)...متن کامل
Growth of olive saplings in different media containing artificial and natural super absorbents at two irrigation intervals
A factorial experiment was conducted to evaluate the impact of super absorbents and organic wastes of rice, olive marc, vermicompost and farmyard manure on the soil water holding capacity and the growth of plant based on randomized complete block design with 13 treatments at two irrigation intervals 5 and 10 days. The olive saplings with same heights and better appearances were planted...متن کامل
Investigating the Role of Three Species of Arbuscular Mycorrhizal Fungi on Growth, Acid Phosphatase Enzyme Activity and Phenolic Compounds in Zinnia Plant under Drought Stress Conditions
This experiment was conducted to study the effects of three identified isolates of Arbuscular mycorrhizal fungi (AMF) on growth, acid phosphatase enzyme activity and phenolic compounds (phenol, flavonoid and anthocyanin) of zinnia plants (Zinnia elegans L.var. Magellan Red) under water stress conditions. A factorial (two factors) experiment was planned based on a completely randomized design (C...متن کامل
ABSTRACT- Different soil potassium (K) pools including soluble, exchangeable and non-exchangeable in surface and subsurface soils may be totally used by canola roots at different growth stages under drought conditions. A field experiment was conducted for one growing season (2013-2014) to study K pools changes during growth stages of two rapeseed cultivars under drought. The experiment was arra...متن کامل
دوره 9 شماره 3
صفحات 0- 0
تاریخ انتشار 2019-09-01
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