EFFECT OF GAMMA IRRADIATION, ETHYLEMETHANE SULPHONATE AND THEIR COMBINATIONS ON PERFORMANCE OF PEA (Pisum sativum L.) | ||||
| Journal of Plant Production | ||||
| Article 13, Volume 29, Issue 12, December 2004, Page 7167-7176 PDF (3.1 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2004.238951 | ||||
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| Authors | ||||
| E. I. Metwally,1; T. M. EI-Gazar2; A. S. EI-Gamal2; A. M. Fayad2 | ||||
| 1Horticulture Dept., Fac. Agric., Kafr EI-Sheikh, Tanta Univ. | ||||
| 2Vegetable and Floriculture Dept., Fac. Agric., Mansoura Univ. | ||||
| Abstract | ||||
| Seeds of three cultivars of pea Pisum sativum L. were irradiated with different doses of gammar-rays (2.5, 5, 10, 15,20,25 and 30 KR). Other portions the some of seeds were treated with different levels of EMS (0.025, 0.05 and 0.1 %). The combined treatments of both mutagens were made. Generally, it was found that, higher doses of both mutagens decreased plant height when compared with entreated plants as well as other doses. In both seasons, the effect of the different treatments on the number of branches per plant were significant or highly significant in the three studied cultivars. The low doses of gamma-rays decreased the number of days from sowing till germination, while higher doses (25 and 30 KR) increased days to germination. However, EMS did not affect the number of days from sowing to germination in both seasons in the studied culitvars. The high doses of gamma-rays Significantly reduce when pollen grains viability in the three studied cultivars in both seasons compared with the control and other doses of both mutagens. Seed yield/plant, number of pods/plant and number of seeds/pod were reduced consistently with the increase the combined treatments of both mutagens as the levels are increased. | ||||
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