Modified AnM technique in combination with black and transparent film mulching in peanut production
文献类型: 外文期刊
作者: Qin, Feifei 1 ; Takano, Tetsuo 1 ; Xu, Hui-lian 2 ;
作者机构: 1.Univ Tokyo, ANESC, Lab Environm Stress Tolerance Mech, Nishi Tokyo 1880002, Japan
2.Int Nat Farming Res Ctr, Matsumoto, Nagano 3901401, Japan
3.SAAS, Shandong Peanut Inst, Qingdao 266100, Peoples R China
关键词: AnM technique;drought;osmotic adjustment;peanut (Arachis hypogaea L.);signal transduction;xerophytophysiology
期刊名称:JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT ( 影响因子:0.435; 五年影响因子:0.484 )
ISSN: 1459-0255
年卷期: 2012 年 10 卷 2 期
页码:
收录情况: SCI
摘要: The modified AnM through exposing the extra elongated hypocotyls in combination with film mulching has proved effective in improvements in plant growth and shell yield by inducing xerophytophysiological regulations such as osmotic adjustment. In the present experiment, black film and white transparent film were compared in the modified AnM technique in the peanut crop. Results showed that black film and white film were equally effective in improvements in plant growth, photosynthesis, and the final shell yield if the AnM practice was adopted. As shown by pressure-volume curve analysis, inducing the hypocotyl elongation and exposing it to light and dry air induced osmotic adjustment and the consequent increases in leaf turgor and the symplastic water fraction. This result was confirmed by the direct measurements of the solutes such as sugars and proline, which were increased by hypocotyls exposition, as well as the protein, which was instead decreased. Excised leaf transpiration declining curve analysis suggested that exposing hypocotyls decreased cuticular transpiration by strengthening the leaf surface structure. In conclusion, hypocotyl exposing treatment in the modified AnM technique could induce xerophytophysiological regulations such as osmotic adjustment and leaf surface structure strengthening, thereby improving leaf photosynthesis, plant growth, disease resistance and the final shell yield.
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