The effects of seed harvesting time on viability of Salsola rigida pall, Zygophyllum eurypterum Boiss & Buhse and Ferula ovina (Boiss.) Boiss in Yazd province | ||
| پژوهش های آبخیزداری | ||
| Article 1, Volume 29, Issue 4 - Serial Number 113, January 2017, Pages 2-8 PDF (609.03 K) | ||
| Document Type: Research | ||
| DOI: 10.22092/wmej.2017.115312 | ||
| Authors | ||
| Ali Asghar Ghasemi1; Naser Baghestani Maybodi* 2; Zarei Zarei3; Fatemeh Alishah1 | ||
| 1Msc. In Range management, Department Agricuture , Islamic Azad University ,Meybod, Iran | ||
| 2Associate Prof., Forest and Rangeland Department, Yazd Agricultural and Natural resources Research and Education Center, AREEO, Yazd, Iran. | ||
| 3Assistant Prof. in Agriculture Department Agrecuture , Islamic Azad University ,Meybod, Iran | ||
| Abstract | ||
| One of the most important plans for range improvement is the production of suitable seeds. To achieve this goal and to detect highest germination rate the harvesting time should be regulated, so that the seeds must be both matured and not scattered. In this study the optimal dates of seed harvesting of three range plants including Salsola rigida, Zygophyllum eurypterum and Ferula ovina are investigated. Seed harvesting was done in different stages from physiological maturation time to seed falling. S. rigida seeds were collected on September 22th, 29th and October 6 th, 13th and 27th and November 3th and 10th at 2004, and Z. eurypterum and F. ovina on June 30th and July 7th, 14th and 21th at 2005. From each stage 400 dried seeds in four replications were tested in petridish. Germinated seeds were counted during 21 days. The results of this experiment showed, there is a significant difference between various seed harvesting times of S. rigida. The highest germination rate of this plant is on Nov. 10th (75%), and the lowest rate is on Sep. 22th (7.3%). No significant difference was detected for Z. eurypterum. The highest rate of germination of Z. eurypterum was on June 30th (61%) and the lowest one was on July 21th (46%). F. ovina seeds had the highest rate of germination (54%) on July 21th and the least rate of germination on June 30th and July 14th (37%). There is also a significant difference in harvesting rate of this plant referring to different times. According to the achieved results of this study, harvesting delay increases germination rates of S. rigida and F. ovina, while this parameter has no effect on Z. eurypterum. This variable is considered as a clue in selecting optimal time of seed harvesting. | ||
| Keywords | ||
| Seed harvesting time; germination; viability; Range plants | ||
| References | ||
|
1-Askarian, M. (1993). Seed production: Studies in lucerne (Medicago sativa L.) cv. Grasslands organa. Ph. D. Thesis. Massy University, New Zeland.
2-Askarian, M. (1993). Management of seed production. Journal of Pajouhesh & Sazandegi, No,20. pp: 6-9.
3-Auld, D.L., Bettis, B. L., Crock, J. E. and Kephart, D. (1988). Planting date and temperature effects on germination and seed yield of chickpea. Agronomy Journal, No,80. pp: 909-914.
4-Baghestani Maybodi, N. (1995). Importance and intensive production methods of range plant seeds in Iran. Range and Forest Journal, No,26. pp: 44-47.
5-Baghestani Maybodi, N., Arzani, H. and Zare, M. T. (2006). Relationship between cover and yield of some range species in steppic region of Yazd province. Biaban Journal, No,2. pp: 57-67.
6-Baskin, C. C. and Baskin, J. M. (1998). Seeds, ecology, biogeography and evolution of dormancy and germination. Academic press, Harcourt Brace and company. London.
7-Clor, M. A., Al Ani, T. A. and Charchafchy, F. (1974). Range resources of Iraq. Germination, storage conditions and after-ripening of the seeds of Artemisia herba-alba. Technical Bulletin, Institute for Applied Research on Natural Resources, No,76. P. 19.
8-Draper, S.R. (1985). International rules for seed testing. Seed Science and Technology, No,13. pp: 342-343.
9-Fatahi, M. (1993). Usage of x-ray in quality and quantity of seed. Journal of Pajouhesh & Sazandegi, No,21. pp:13-24.
10-Karimi, Gh. (1996). Investigation of the best time of seed harvesting in range plants. M.Sc.Thesis,Tehran University.
11- Latifei, N. (2001). Seed Science. Gorgan University Press.
12-Rezaei, A. (2001). Rules for seed testing and assesment under ISTA. Rangelands and Forests Institute Press.
13-Sarmadnia, Gh. (1987). Seed technology. Jihade Daneshgahi Mashhad Press.
14-Young, J. A., Plamquist, D.E. and Evans, R. A. (1991). Temperature profiles for germination of big sagebrush seeds from native stand. Range Management, No,44. pp: 385-390.
| ||
|
Statistics Article View: 827 PDF Download: 898 |
||
Journal management system. designed by sinaweb