Effects of Shading on Growth and Photosynthetic Characteristics of Allium victorialis L.
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2018年16
- Page:
- 76-80
- Research Field:
- Publishing date:
Info
- Title:
- Effects of Shading on Growth and Photosynthetic Characteristics of Allium victorialis L.
- Author(s):
- ZHANG Lijuan1; QU Jisong1; LI Kun1; ZHU Qiannan1; HUANG Lingdan2
- (1.Institute of Germplasm Resources,Ningxia Academy of Agriculture and Forestry Science,Yinchuan,Ningxia 750002；2.Management Committee of Wuzhong National Agticultural Sci-Tech Garden,Wuzhong,Ningxia 751100)
- Keywords:
- shading; Allium victorialis L.; domesticated cultivation; biological characteristics
- PACS:
- -
- DOI:
- 10.11937/bfyy.20180396
- Abstract:
- In order to explore the suitable microclimate conditions in the domestication cultivation of Allium victorialis L.in Ningxia,wild seedlings of Allium victorialis L.from Jilin Changbai Mountains were used as materials,the treatments of using different mesh density and color of shade net shading(T1,black shade net,6 pins,85% shade;T2,black shade net,4 pins,70% shade;T3,blue shade net,4 pins,70% shade;T4,green shade net,4 pins,70% shade;T5,black shade net,2 pins,30% shade) were set up,no shade was as CK.Air temperature,air humidity,light intensity and their influence on the phenological phase,growth and photosynthetic indexes of Allium victorialis L.were monitored under the condition of different treatments.The results showed that the shade net with the same mesh density,shade degree was black>green>blue;leaf-expansion periods and wither periods relative delayed with a high degree of shade,the leaf-expansion periods of T1 treatment than CK delayed about 7 days,and the wither periods delayed about 15 days;the growth period of Allium victorialis L.was longer,plant height and stem diameter also showed the trend to increase with the increase of shade degree;its growth was on the contrary when no shade or lower shade period was short and plant shorter,stems coarse to fine when.Stomatal conductance,photosynthetic rate,WUE decreased,and transpiration rate increased with the increase of light intensity,the photosynthetic performance of treatments were T1>T2>T4>T3>T5>CK;shade was advantageous to the increase of edible parts of Allium victorialis L.,fresh weight per plant on the ground of T1 was the maximum with 2.68 g,the second was T2 treatment of 2.56 g,CK was minimum with 2.30 g.The environmental conditions of the most appropriate growth of Allium victorialis L.domesticated cultivation was 85% shade degree in Yinchuan area.
Last Update: 2018-09-21