|
|
|
| Differences of root growth and morphology of seed-base seedling and container seedling |
| Yang Xitian1,Huo Lina1,Zhao Ning1,Zhu Hongmei2,Duan Yuling3 |
| 1.Henan Agricultural University,450002,Zhengzhou;2.Henan University,475001,Kaifeng,Henan;3.Management Division of Zhengzhou Shiji Amusement Park,450009,Zhengzhou: China |
|
|
|
|
Abstract In order to find out the relationship between the method of seedling culture and root development,we presented two methods for seedling breeding,i.e.Seed-base and container.Based on the seedlings of Platycladus orientalis,Robinia pseudoacacia and 3Ulmus pumila in the experiment,we found out that because of the effect of root air-cutting,seed-base check the taproot growth of P.orientalis and U.pumila,and promote that of R.pseudoacacia.Seed-base can boost taproot growth towards the gravity direction,and appear a performance of vertical upgrowth taproot and sturdy and evenly distributed lateral root. On the other hand,taproot is not evident and root swirlling is serious in container seedling.P.orientalis and U.pumila seed-base seedling has a 181.8% and 128.6% greater number of first-order lateral root respectively than that of container seedling,and the diameter of first-order lateral root of U.pumila is also stimulated by seed-base.For all three species,first-order lateral roots of seed-base seedling distribute evenly in the four parts of 12,2-3,3-4 and 4-5 cm,however,that of of container seedling distribute only in the parts of 1-2 and 2-3 cm.Seed-base stimulate the number of first-order lateral root and ensure its even distribution,which will play an important role in enhancing the root absorbency and the soil conservation function.
|
|
Received: 05 January 2009
|
|
|
|
| [1] |
ZHU Hong, WANG Lu, KONG Linggang, BI Sisheng, MENG Shiyuan, ZHANG Zhihao, WANG Huatian, ZHAN Zhongcai, LIU Xiumei, TANG Jin, CHEN Shuying, CONG Guizhi. Effect of irrigation with magnetized saline water on grape seedlings and ionic homeostasis[J]. SSWC, 2020, 18(1): 131-139. |
|
|
|
|
