چکیده:
As an herbaceous, perennial, and evergreen plant, Vetiver Grass (Chrysopogon zizanioides L.) can be used for the improvement and development of arid and semi-arid rangelands. To assess the interaction effect of organic and biological fertilizers on the growth and physiological traits of Vetiver grass, the dry weight of shoots and roots, essential oils, chlorophyll, carotenoids, and proline content were measured. A completely randomized design in factorial layout with three replications was performed in Malayer University’s greenhouse in 2016. The treatments were mycorrhizal fungi on two inoculated (M1) and non-inoculated (M2) levels and vermicompost organic fertilizer in six levelsof (0) (control), 10, 20, 40, 60, and 80% (V1, V2, V3, V4, V5 and V6), which were added to each pot. The results showed that the interaction between different levels of vermicompost and mycorrhiza had a significant (P<0.05) effect on quantitative and qualitative traits of the plants. According to the results, the highest leaf dry weight was seen in VC6M1 treatment and the highest root dry weight wasobserved in VC5M2 and VC6M2 treatments. The highest percentage of essential oil content was observed in VC2M1 and VC5M2 treatments. It was also observed that in the control level of vermicompost and mycorrhizae treatment (VC1M2), the presence of proline index rose to its highest level. The maximum amount of chlorophyll a and carotenoid was seen in VC3M2treatment while the maximum percentage of chlorophyll b was observed in VC2M2 treatment.
خلاصه ماشینی:
Studying the effects of mycorrhiza and vermicompost fertilizers on the growth and physiological traits of Vetiver Grass (Chrysopogon zizanioides L.
To assess the interaction effect of organic and biological fertilizers on the growth and physiological traits of Vetiver grass, the dry weight of shoots and roots, essential oils, chlorophyll, carotenoids, and proline content were measured.
So this research aimed at studying the effects of mycorrhiza and vermicompost fertilizers on the growth and physiological traits of Vetiver Grass.
3. Results The interactions of different mycorrhizal fungi and vermicompost fertilizer on dry weight of shoots and roots, essential oils, chlorophyll, carotenoids and proline content were significant (p < 0.
1. The effect of different fertilizer treatments on the dry weight of leaves and roots According to the results, the combined use of mycorrhiza and vermicompost had a significant impact on the dry weight of leaves and roots (Fig. 1) and these two variables had an increasing trend.
Net dry weight of leaves and roots under different levels of vermicompost fertilizer and mycorrhizal fungi in the plant Chrysopogon zizanioides.
1. The effect of different fertilizer treatments on dry weight of leaves and roots In general, fertilizers containing organic materials such as vermicompost satisfy the nutritional needs of plants and increase the amount of biomass (SaeedNejad, Rezvani Moghadam, 2009).
The effect of different fertilizer treatments on photosynthetic pigments In general, the use of an organic fertilizer such as vermicompost increases the amount of nutritional materialssuch as nitrogen available to the plant and as a result increases the overall chlorophyll and carotenoid content (Asghari et al.