Morpho-physiological Responses of Dill plant (Anethum Graveolens) to Foliar Application of Polyamines in Different Growth Stages
Subject Areas : agronomy
Mahtab Zahedi
1
(
Department of Horticulture, Faculty of Agriculture, (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
)
اسدی قارنه Asadi-Gharneh
2
(
Associate Professor, Department of Horticulture, Faculty of Agriculture, (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
)
Keywords: Chlorophyll, Carotenoid, Polyamines, Wet and dry weight,
Abstract :
The use of polyamines with an impact on a wide range of plant growth and developmental processes can in/directly influence the growth indices and metabolic performance of the plant. This experiment was performed in a randomized block design with 10 treatments including spermine, spermidine and putricin each at three levels of 50, 100 and 150 mg / l with 3 replications. Non-foliar treatment was utilized as a control treatment. The results demonstrated that foliar application with different levels of polyamines had a significant impact (P≤0.01) on traits such as root dry weight, wet and dry weight of shoots and also a significant effect (P≤0.01) on traits such as chlorophyll, a, b and total chlorophyll, height, side branch, the number of umbela and weight of 100-seeds. The highest dry weight of roots, wet and dry weight of shoots and the numbers of side branch were related to spermidine treatment 150 mg/ l, the highest chlorophyll a and b and total chlorophyll and the number of umbels related to spermine treatment 150 mg / l, the highest carotenoids related to spermine treatment 100 mg / l and The maximum weight of 100 seeds and height for putrescine treatment was 150 and 100 mg / l respectively. Based on the results of this study, it seems that spermine and spermidine have been effective on more traits. Foliar application of polyamines can also increase the quantitative and qualitative yield of the plant and change the majority of traits.
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