MA Caixia,WANG Jiqing,ZHANG Yonghao,et al.Effect of Different Composite Processing on Tomato Seedling Growth in High Temperature Season[J].Northern Horticulture,2018,42(03):22-27.[doi:10.11937/bfyy.20171425]
不同复合处理对高温季节番茄幼苗生长的影响
- Title:
- Effect of Different Composite Processing on Tomato Seedling Growth in High Temperature Season
- 文献标志码:
- A
- 摘要:
- 夏秋高温季节的环境条件很容易导致番茄幼苗的徒长,研究高温季节培育番茄壮苗技术具有重要的实践意义。试验以 “粉妮亚” 番茄为试验材料,选根际温度(A)、光照强度(B)、营养液盐分浓度(C)3个试验因素,每个因素分别设置3个水平,采用正交实验设计,研究了不同处理对番茄幼苗根系活力、下胚轴长、平均节间长、壮苗指数的影响。结果表明:在对番茄幼苗根系活力、下胚轴长度和平均节间长影响方面,营养液盐分浓度是最重要的因素;在对壮苗指数的影响方面,适当降低基质温度,避免过度遮阳有利培育壮苗。初步确定3个因素对培育番茄壮苗影响的次序为C最大、B次之、A最小;筛选出夏秋番茄穴盘育苗的最佳育苗条件:根际降温幅度(3+1)℃、遮光率(50+5)%、EC值(5.0+0.5)mS?cm-1。
- Abstract:
- It is important for tomato seedlings technology to research cultivation in high temperature season,because environmental conditions with high temperature in summer and autumn was easy to cause moderate growth for tomato seedlings.Experiment with ‘Fenniya’ varieties as experimental material,the rhizosphere temperature(A),light intensity(B) and nutrient salt concentration(C) were selected as three factors,each factor set three levels respectively,using orthogonal experiment design,the effect of different treatment on tomato seedling for root activity,strong seedling index,hypocotyl length and average internode length were studied.The results showed that the most important factor for tomato seedling′s root activity,hypocotyl length and internode length was nutrient salt concentration.In terms of influence on seedling index,appropriate to reduce the substrate temperature and avoid excessive sunshade were conducive to cultivating strong seedling.Primarily determined that the affection of three factors for tomato seedling cultivation,factor C was the first one,factor B took the second place,the last one was factor C;screened out that the best condition for tomato hole tray seedling in summer and autumn was rhizosphere temperature range (3+1)℃,shading rate (50+5)%,EC value (5.0+0.5)mS?cm-1.
参考文献/References:
[1]刘爱荣,陈双臣,王淼博,等.高温胁迫对番茄幼苗光合作用和叶绿素荧光参数的影响[J].西北农业学报,2010,19(5):145-148.
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备注/Memo
第一作者简介:马彩霞(1988-),女,河南虞城人,硕士研究生,研究方向为园艺学。E-mail:1203810332@qq.com.