|Table of Contents|

Relationship Between Bolting Speed and Physiological and Biochemical Characteristics at Bolting Stage in Leaf Mustard

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年21
Page:
27-33
Research Field:
Publishing date:

Info

Title:
Relationship Between Bolting Speed and Physiological and Biochemical Characteristics at Bolting Stage in Leaf Mustard
Author(s):
YAN Fengjun1; 2; LIU Duchen1; 2; DAI Yunlu3; GONG Xuefeng1; 2; CHANG Wei1; 2; LI Yuejian1; 2
(1.Institute of Horticulture，Sichuan Academy of Agricultural Sciences/Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province,Chengdu,Sichuan 610066；2.Key Laboratory of Biology and Genetic Improvement of Horticultural Crops（Southwest Region）Ministry of Agriculture,Chengdu,Sichuan 610066；3.People′s Government of Putou Town,Lixian County,Aba Autonomous Prefecture,Lixian,Sichuan 623100)
Keywords:
leaf mustard; bolting date; SOD; POD; CAT; bolting speed
PACS:
-
DOI:
10.11937/bfyy.20194390
Abstract:
Three mustard materials with different bolting tolerance,F7212,F7073 and F7170 were selected in this study,the physiological and biochemical characteristics of leaves in 0-4 days before bolting stage were identified,and the correlation between each index and the bolting speed of mustard were studied,in order to provide a theoretical basis for revealing the physiological and biochemical characteristics of mustard buds and their relationship with bolting tolerance.The results showed that the activities of soluble protein,POD,SOD and CAT in the leaves of various mustard were performed gradually increasing during the 0-4 days before bolting stage,while the soluble sugar decreased.Meanwhile,the soluble protein content and CAT activity in leaves increased with the decline in bolting speed.Compared with other materials,F7212 was the highest on the soluble protein content and CAT activity,which increased by 0.12%-0.91% and 14.54%-149.86% respectively.However,SOD activity decreased with the increase of bolting tolerance,F7212 decreased by 2.68%-116.00% respectively.In addition,the soluble protein content and SOD activity of the low bolting speed mustard material performed sharply increasing.While,the POD and CAT activities showed a steady increasing.Correlation study showed that there was a significant correlation between the bolting speed and POD and CAT activities,but no significant correlation with soluble protein,soluble sugar contents and SOD activity.Path analyses showed that soluble sugar content and SOD activity were the most direct effects on the bolting speed (-0.80-1.09),but soluble protein,POD and CAT indirectly effected on soluble sugar and SOD.It Indicated that with the SOD increasing,the soluble sugar in leaf quickly transfer to outside were main the important factors to accelerate the mustard bolting rate.

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Last Update: 2021-01-14