|Table of Contents|

Effect of Different Exogenous Hormones on Cold-resistant Ability and  Related Physiological Indicators of Plum Flower(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年11
Page:
17-22
Research Field:
Publishing date:

Info

Title:
Effect of Different Exogenous Hormones on Cold-resistant Ability and  Related Physiological Indicators of Plum Flower
Author(s):
LI Xueling1PANG Haiying1NIU Dongwei2REN Shifu1LI Yanhui2
(1.College of Forestry,Agricultural University of Hebei,Baoding,Hebei 071000;2.College of Landscape and Travel,Agricultural University of Hebei,Baoding,Hebei 071000)
Keywords:
plum flowerlow temperature stressexogenous hormonechilling tolerance
PACS:
-
DOI:
10.11937/bfyy.201711004
Abstract:
Four plum cultivars Prunus salicina ‘Oishiwas’‘Angeleno’‘Fraiar’‘Liwang’ were used as the test materials,H2O treatment as comparison,the effects of exogenous SA or ABA in their proper concentration on the cold-resistance and related physiological targets of flowers during -2 ℃ chilling stress were studied.The results showed that 0.20 mmol?L-1 SA for Prunus salicina ‘Oishiwas’,0.15 mmol?L-1 SA for ‘Angeleno’,50 mg?L-1 ABA for ‘Fraiar’ and 20 mg?L-1 ABA for ‘Liwang’ could decrease the supercooling temperature and enhance chilling tolerance in plum flowers.Four suitable concentration of hormone which were sprayed on four varieties compared with the control,could decrease the electrolyte osmotic rates by 32.19%,15.82%,40.60%,35.52%;decrease the MDA content by 5.46%,5.11%,17.98%,9.40%;decrease the genaration rate of O?[TX-*4]2 by 10.24%,32.44%,7.67%,53.09% and decrease the H2O2 content by 19.99%,53.15%,30.17%,24.04%.Taken together,it was considered that the suitable exogenous SA,ABA could enhance chilling tolerance in plum flowers by reducing the membrane lipid peroxidation and the destruction of cell membrane under low temperature stress.

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Last Update: 2017-06-12