The Application of Chlorophyll Meter in Flue-cured Tobacco of Henan Plain Tobacco Region

doi:10.14088/j.cnki.issn0439-8114.2018.03.013

Abstract

Abstract: In order to study the method of SPAD-502 chlorophyll meter application in flue-cured tobacco of Henan plain tobacco region，the field experiment was conducted and choose two varieties Zhongyan 100 and Yuyan No.9 as materials. Results showed that，the leaf SPAD value of two varieties has certain change with the change of light intensity in one day. To comprehensively consider the factors such as stability and maneuverability of measurement，8：00 AM to 10：00 AM is the best determination period. After alcohol-tempon to clean site and test window，the measured results had significant changes compared with before. The leaf SPAD value of two varieties in different sites such as resettling period， vigorous growing period and mature period were analyzed，and it was found that，compared with the other leaves，the determination results variation coefficient of the top fully expanded third leaf was low，so the determination results had better stability；Dividing the top of the third leaf into 10 loci and it was found that the variation coefficient and representation coefficient of mean value of the main central vein left and right sides were low，so the results of the stability and the representative were the best.

Key words: SPAD chlorophyll meter, flue-cured tobacco, Henan plain tobacco region

CLC Number:

S572
Q945.1

WANG Dian，WU Zhao-hui，GUO Fang-yang，YAN Xiao-mao，LI Jian-hua，SUN Ji-ping，ZHANG Li-ding，LIU Qiao-zhen，CHANG Jian-wei. The Application of Chlorophyll Meter in Flue-cured Tobacco of Henan Plain Tobacco Region[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(3): 51-56.

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