For sweet cherry,the economic benefit of protected cultivation is much higher than that of open field cultivation. However,problems such as nonuniform germination,aberrant flower,abortion,bad fruit setting and delayed...For sweet cherry,the economic benefit of protected cultivation is much higher than that of open field cultivation. However,problems such as nonuniform germination,aberrant flower,abortion,bad fruit setting and delayed maturation appear frequently due to the inaccurate regulation of chilling requirement. In order to solve the problems,an automatic system for monitoring,selecting and recording of chilling requirement in protected cultivation of sweet cherry was designed and developed. The system,which consisted of temperature detection,effective chilling temperature selection,signal conversion and output and chilling accumulation display,had been continuously used in protected cultivation of sweet cherry for 3 years and good effects had been achieved. The system monitored chilling accumulation accurately and made it more reasonable for the time selection of greenhouse covering,thus avoiding risks of nonuniform germination,bad fruit setting and delayed maturation,etc. Under the coordinate application of this system with other modern measuring and controlling techniques such as automatic detection and alarming of temperature and humidity,the environment in greenhouses was regulated precisely that the uniform fruits were obtained and the expected yield,quality and harvest time were achieved.展开更多
基金Supported by"New variety breeding of Sweet Cherry"belongs to National Science-technology Support Plan Projects for the 12th Five-Year Plan(2013BAD02B03-3-2)"948"Project of Agricultural Department(2011-Z40)+2 种基金Special Fund for Fruit Innovation Team of Modern Agricultural Industry Technology System in Shandong Province(SDAIT-03-022-04)Shandong Agricultural Engineering Project of Improved Variety(2013)"Introduction of Excellent Fruit Germplasm Resource and Germplasm Bank"belongs to National Science and Technology Cooperation Projects(2012DFR30700)
文摘For sweet cherry,the economic benefit of protected cultivation is much higher than that of open field cultivation. However,problems such as nonuniform germination,aberrant flower,abortion,bad fruit setting and delayed maturation appear frequently due to the inaccurate regulation of chilling requirement. In order to solve the problems,an automatic system for monitoring,selecting and recording of chilling requirement in protected cultivation of sweet cherry was designed and developed. The system,which consisted of temperature detection,effective chilling temperature selection,signal conversion and output and chilling accumulation display,had been continuously used in protected cultivation of sweet cherry for 3 years and good effects had been achieved. The system monitored chilling accumulation accurately and made it more reasonable for the time selection of greenhouse covering,thus avoiding risks of nonuniform germination,bad fruit setting and delayed maturation,etc. Under the coordinate application of this system with other modern measuring and controlling techniques such as automatic detection and alarming of temperature and humidity,the environment in greenhouses was regulated precisely that the uniform fruits were obtained and the expected yield,quality and harvest time were achieved.
