ZHANG Lijuan,QU Jisong,YAN Xiujuan,et al.Effect of Root Volume on the Growth and Development of Potted Ornamental Tomato[J].Northern Horticulture,2016,40(10):24-27.[doi:10.11937/bfyy.201610006]
根域容积限制对矮生观赏番茄生长发育的影响
- Title:
- Effect of Root Volume on the Growth and Development of Potted Ornamental Tomato
- 文献标志码:
- A
- 摘要:
- 采用5种不同容积规格的塑料花盆栽培矮生观赏番茄“红珍珠”，探讨根域容积对矮生观赏番茄生长发育的影响。结果表明：根域容积不同，矮生观赏番茄的生长指标、光合指标差异显著，其株高、茎粗、植株干鲜重及根系活力均随着花盆变小先增高后降低，果实结果期到成熟期，T3处理株高涨幅最大，为29.6%，T2处理茎粗涨幅最大为41.48%；果实成熟期的根系活力均显著低于结果期，结果期T4处理根系活力最强，达57.17 μg?g-1?h-1；随花盆的容积变小，矮生番茄蒸腾速率（Tr）逐渐增加，水分利用效率（WUE）逐渐降低，气孔导度（Gs）、胞间CO2浓度（Ci）和净光合速率（Pn）均先增加后降低，气孔导度和胞间CO2浓度均为T4处理最高，T1处理最低；净光合速率（Pn）则T2处理最强。随花盆容积变小，番茄的单株产量先增加后减少，T3处理最高为181.24 g，T5处理最低为124.6 g；可滴定酸、可溶性糖和维生素C含量均逐渐增高。综合以上分析得出T2、T3处理花盆容积较适合矮生观赏番茄的生长。
- Abstract:
- Taking ornamental tomato ‘red pearls’ as materials that were cultivated with plastic pots of 5 different volumes，in order to explore effects of root volume on the growth and development of ornamental tomato.The results showed that with the different root volume，the growth index and the photosynthetic characteristics were significant difference，all its plant height，stem diameter，dry and fresh weight and root activity were increased and then decreased with smaller flowerpots volume.From the fruit setting stage to fruit mature period，the increase scope of T3 plant height (29.6%) was the biggest，and the increase scope of T2 stem diameter (41.48%) was the biggest；the root activity of fruit mature period was obviously lower than fruit setting stage，and the fruit setting stage of T4 was the strongest，reached 57.17 μg?g-1?h-1；with smaller flowerpots volume，the Tn of ornamental tomato increased，the WUE reduced gradually，the Gs，the Ci，and the Pn all increased and then decreased，each the Gs and the Ci of T4 were the highest，and T1 were the lowest；the Pn of T2 was the strongest.With smaller flowerpots volume，the per plant yield was increased and then decreased，the T3 was the highest with 181.24 g，and the T5 was the lowest with 124.6 g；the titratable acid，soluble sugar and vitamin C all increased gradually.On the basis of the above analysis，the flowerpots volume of T2 and T3 were suitable for the growth of ornamental tomato.
参考文献/References:
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备注/Memo
第一作者简介：张丽娟（1980-），女，辽宁喀左人，硕士，助理研究员，现主要从事蔬菜栽培生理等研究工作。E-mail：juanzi800219@163.com. 基金项目：宁夏农林科学院自主研发资助项目(NKYJ-15-03）；公益性行业（农业）科研专项资助项目（201503137）。