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Preliminary Study on Cold Hardiness of Hippeastrum and Amaryllis(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年03
Page:
81-83
Research Field:
Publishing date:

Info

Title:
Preliminary Study on Cold Hardiness of Hippeastrum and Amaryllis
Author(s):
LOU Xiao-ming1; 2; LYU Wen-tao1; 2; WU Yu-juan3; ZHOU Yu-zhen1; 2; ZHANG Wen-jing1; 2
(1.Suzhou Polytechnic Institute of Agriculture，Suzhou，Jiangsu 215008；2.The Jiangsu Provincial Platform for Conservation and Utilization of Agricultural Germplasm，Suzhou，Jiangsu 215008；3.Suzhou Sunong Gardening Landscaping Co.Ltd.,Suzhou,Jiangsu 215008)
Keywords:
Hippeastrum hybridum; A.belladonna; cold tolerance; semilethal temperature(LT50)
PACS:
-
DOI:
10.11937/bfyy.201503025
Abstract:
Taking Hippeastrum hybridum ‘blossom peacock’，Hippeastrum ‘papilio’and A.belladonna L.as materials,external morphological changes and relative electrical conductivity changes in the different temperature treatments were studied，the semilethal temperatures （LT50） were calculated by using Logistic and the strength of relative cold resistance were compared.The results showed that the relative conductivity of Hippeastrum hybridum and A.belladonna increased with the decreasing temperature showed ‘S’ type rise，and morphology of cold were observed basic conform to electrolyte leakage rate change trend.LT50 of Hippeastrum hybridum ‘blossom peacock’was -1.99492℃，cold resistance was lower；Hippeastrum ‘papilio’and A.belladonna L.were stronger than the Hippeastrum hybridum ‘blossom peacock’，LT50 of A.Belladonna was -6.17733℃,LT50 of Hippeastrum ‘papilio’was -7.69215℃，the two semilethal temperature were close，belonged to cold resistance strong breed.

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Last Update: 2015-03-02