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1花生荚果发育及其调控研究进展显示文摘花生是重要的油料与经济作物,在农业种植业结构调整中发挥重要作用。荚果是花生的收获器官,深入研究花生荚果发育及其调控,可以为高产育种提供理论依据。本文从花生荚果发育过程和内外限制因素的调控作用,并结合激素、营养元素、遗传学研究以及DNA、RNA等分子调控机制,综述了近年来花生荚果发育相关的研究进展,为后续研究提供参考。刘文文 王建国 万书波 彭振英 李新国 2020中国油料作物学报2020,42,6:4
2Study on laser pre-sowing treatment of rice seeds by free-falling transport method显示文摘Recently,laser pre-sowing treatment of seed is attracting a great attention of scientific community for its positive influence to enhance germination,seedling and growth of plants,vegetables and crops.In this study,effect of laser pre-sowing treatment of rice seeds was given,which was implemented by free-falling transport method.Test has been processed in Unzon district(DPRK)in 2017.Two kinds of Korean rice seeds(namely Pyongyang-53 and Dongsung-1)were irradiated by semiconductor laser with wavelength of 650 nm,which was controlled in PWM mode.Each group was irradiated using exposure time of 0.28 s and duty ratio of 50 percent.In result,a considerable improvement has been observed in germination,growth and final productivity.Using laser pre-sowing treatment of rice seed,total productivities have been increased by 7.7%and 21%for “Pyongyang-53”and “Dongsung-1”,respectively.Results show that laser pre-sowing treatment of seed can significantly enhance germination,seedling and growth,and thus can improve the productivity of rice.In future research,laser pre-sowing treatment by free-falling transport method should be processed for other kinds of plants,vegetables and cereal crops to find out appropriate parameters,such as mechanical structure of device,wave length and power of laser,frequency and duty cycle of PWM control signal and exposure time,etc.Phyongchol Ri Sangjin Choe Yongsong Jang 2019Information Processing in Agriculture2019,6,4:1
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