| Difference in drought resistance of root and leaf in maize |
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| DOI：10.7606/j.issn.1000-7601.2010.04.11 |
| Key Words: maize leaf sheath seminal roots adventitious nodal roots water retention |
| Author Name | Affiliation | | LIU Shengqun | Norheast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China | | SONG Fengbin | Norheast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China | | ZHOU Xuan | Norheast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin 130012, China
Graduate School of Chinese Academy of Sciences , Beijing 100039, China |
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| Abstract: |
| In order to study different drought resistance of root and leaf in maize, water retention ability of leaf, leaf sheath and root at jointing stage of maize(Zea mays L.) two varieties of Yedan 13 and Danyu 13 were examined in field trails. Leaf and sheath of the lower sixth leaf, seminal root and adventitious nodal roots from first layer to fifth layer were used as the test materials. Root was sampled by mining method. The results showed that the water retention ability of different organs were different at jointing stage. From strong to low water retention ability was leaf sheath, root and leaf. To compare water retention ability of different parts of root, from strong to low were base part, middle part and root tip; while to compare that of different root types, water retention ability of seminal root was the weakest. The water retention ability of base part of adventitious nodal roots, from strong to low was the fifth layer, the fourth layer, the third layer, the second layer and the first layer. Water retention ability of middle part and root tip among adventitious nodal roots from first layer to fifth layer showed different. |
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