Effect of heat treatment around the fruit set region on growth and yield of watermelon [Citrullus lanatus (Thunb.) Matsum. and Nakai]

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• 作者：Jaejong Noh (1)
  Jeong Man Kim (2)
  Sameena Sheikh (1)
  So Geun Lee (1)
  Jeong Hyeon Lim (1)
  Moon Ho Seong (1)
  Gi Tai Jung (1)
  
• 关键词：Temperature ; Electricity consumption ; Yield ; Soluble solid content ; Ion content
• 刊名：Physiology and Molecular Biology of Plants
• 出版年：2013
• 出版时间：October 2013
• 年：2013
• 卷：19
• 期：4
• 页码：509-514
• 全文大小：
• 作者单位：Jaejong Noh (1)
  Jeong Man Kim (2)
  Sameena Sheikh (1)
  So Geun Lee (1)
  Jeong Hyeon Lim (1)
  Moon Ho Seong (1)
  Gi Tai Jung (1)
  
  1. Watermelon Experiment Station, Jeonbuk A.R.E.S, Gochang, 585-863, Republic of Korea
  2. Specialization Crop Research Institute, Jeonbuk A.R.E.S, Jinan, 567-807, Republic of Korea
  
• ISSN：0974-0430

文摘

The present experiment was aimed to study the effect of imposing modulated temperature treatments 14 and 18, around the fruiting region of watermelon plants, and to estimate the economic feasibility of the temperature treatments based on energy consumption for heating. Watermelon cultivar ambok-gulwas selected and sown on perlite beds in a plastic house under controlled conditions at Watermelon Farm, Jeongeup-Jeonbuk, longitude 353147.51N, 126488.84E, altitude 37m during the early spring season (2010011). The findings revealed that the temperature treatment at 18 caused significant increase in weight (2.0kg plant1), fruit weight (8.3kg plant1), soluble solid content (11.5%), and fruit set rate (96.5%) at harvest stage. Higher contents of Ca2+ and Mg2+ ions were observed in the 1st upper leaf of the fruit set node (79.3mgL1) and the 1st lower leaf of the fruit set node (12.0mgL1), respectively at 14. The power consumption and extra costs of the temperature treatment 18 were suggested as affordable and in range of a farmer budget (41.14 USD/22days). Hence, it was concluded that modulating temperature treatments could be utilized successfully to optimize the temperature range for enhancing the fruit yield and quality in the winter watermelon crops.