|Table of Contents|

Effect of Cutting off the Inflorescences on Root Sucker Physiological Characteristics of Red Raspberry(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年23
Page:
26-30
Research Field:
Publishing date:

Info

Title:
Effect of Cutting off the Inflorescences on Root Sucker Physiological Characteristics of Red Raspberry
Author(s):
LIU Haipeng1; DU Yanyan1; LI Baoguo1; ZHANG Xuemei1; QI Guohui1; ZHOU Daiyan2
(1.College of Forestry，Agricultural University of Hebei，Baoding，Hebei 071000；2.Vertices in Hebei Agricultural Science and Technology Co.Ltd.，Nanhe，Hebei 054000)
Keywords:
:red raspberry; inflorescences; root activity; root sucker
PACS:
-
DOI:
10.11937/bfyy.201523007
Abstract:
It’s important implications to explore the control managements of the red raspberry root suckers for the propagation of red raspberry root sucker，increasing the shoot density rapidly in new raspberry orchard，promoting the early yield.Raspberry of ‘Heritage’ was used as test materials，at the period of bud appearance in the autumn，6 lines of red raspberry cultivar which were planted in the spring were selected as materials，the spacing in the rows was 0.5 m and the spacing between rows was 2 m.The plants in 3 lines were as cutting off inflorescence treatment，and that the other 3 lines were as control，which were not cutting off inflorescence.30 successive strains，in each line were selected as one block.The effect of cutting off the inflorescence on root sucker number and root sucker growth，root vigor，substances in roots，the characteristics of chlorophyll fluorescence were studied.The results showed that，the average numbers of root suckers of the cutting off inflorescences and control were 7.97 and 5.06 respectively，and there existed significant difference between the two treatments.There existed no significant difference of the stem diameters between the two treatments at the same period.The average heights of the root sucker of the cutting off inflorescences and control were 72.06 cm and 59.03 cm respectively on October 5th，and there existed significant difference between the two treatments.The root vigor of the cutting off inflorescences and control were 86.26 μg?g-1?h-1 and 54.17 μg?g-1?h-1 respectively，and that of cutting off inflorescences was very significantly higher than that of control.The contents of soluble protein in roots of the two treatments were 10.66 mg/g and 8.61 mg/g respectively，and that of cutting off inflorescences was significant higher than that of control.The contents of soluble sugar in roots of the two treatments were 1.64% and 0.98% respectively，and that of cutting off inflorescences was very significant higher than that of control.Cutting off the autumn inflorescence increased the maximum fluorescence (Fm) value and maximum energy conversion of the PSⅡ reaction center (Fv/Fm) value，and reduced the minimum fluorescence (Fo) value.Cutting off the inflorescence could significantly increase the red raspberry leaf photosynthetic capacity，so as to increase the number and quality of root sucker.

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Last Update: 2016-01-13