Study on the Growth and the Photosynthetic Characteristics of Low Energy C+ Ion Implantation on Peanut |
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| Authors: | Yuguo Han Lei Xu Peiling Yang Shumei Ren |
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| Institution: | 1. Key Laboratory of Soil and Water Conservation and Desertification Combating, Ministry of Education, School of Soil and Water Conservation, Beijing Forestry University, Beijing, China.; 2. China Irrigation and Drainage Development Center, Beijing, People’s Republic of China.; 3. College of Water Resources and Civil Engineering, China Agricultural University, Beijing, China.; Lawrence Berkeley National Laboratory, United States of America, |
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| Abstract: | Employing the Nonghua 5 peanut as experimental material, the effects of low energy C+ ion implantation on caulis height, root length, dry weight, photosynthetic characteristics and leaf water use efficiency (WUE) of Peanut Ml Generation were studied. Four fluences were observed in the experiment. The results showed that ion implantation harmed the peanut seeds because caulis height, root length and dry weight all were lower in the treatments than in CK, and the harm was aggravated with the increase of ion fluence. Both Pn and Tr show a saddle-shape curve due to midday depression of photosynthesis. Low fluence of low energy C+ ion implantation could increase the diurnal average Pn of peanut. The diurnal variation of Tr did not change as significantly as Pn. The light saturation point (LSP) was restrained by the ions. After low energy C+ ion implantation, WUE was enhanced. When the fluence increased to a certain level, the WUE began to decrease. |
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