|Table of Contents|

Effect of Different Photoperiod on Seedlings Growth of Impations balsamina Induced by the Space Mutation SP5 and SP8 Generation

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年02
Page:
104-110
Research Field:
Publishing date:

Info

Title:
Effect of Different Photoperiod on Seedlings Growth of Impations balsamina Induced by the Space Mutation SP5 and SP8 Generation
Author(s):
YAN Qiujie1; 2; PENG Lan1; LI Jianhua1; WANG Hongyu1; LI Yan2
1.College of Life Sciences and Technology,Mianyang Normal University,Mianyang,Sichuan 621000；2.Ecological Security and Protection Key Laboratory of Sichuan Province,Mianyang,Sichuan 621000
Keywords:
Impations balsamina; photoperiod; space mutation; seedling
PACS:
-
DOI:
10.11937/bfyy.20171869
Abstract:
In this study,the seeds of mutation fifth generation （SP5) and eighth generation （SP8) of space mutation Impatiens balsamina were used as the test materials,and the different photoperiod contrast processing was adopted as the test method.In order to make clear the response of the Impatiens different mutation generations to different light time,the effects of different light time （9,12,15 h?d-1) to the seedlings of ordinary Impatiens,the Impatiens mutation SP5 and SP8 generation were studied by determination the seedling growth,chlorophyll content and soluble protein content.The results showed that the seedling height,root-shoot ratio,leaf area,chlorophyll a content,total chlorophyll content,chlorophyll a/b value,and soluble protein content in mutation SP8 generation of Impatiens seedlings all showed the loss of mutagenic advantage,while the root length of seedlings were excepted.But 12 hours or 15 hours light resulted in the increasing of root shoot ratio and leaf area in SP8 seedlings to reach the level of SP5′s,and the content of soluble protein and chlorophyll a/b value of SP8 were improved to a certain extent.However,the seedling height,chlorophyll a content and total chlorophyll content were not reached the level of SP5′s.This indicated that photoperiod had positive effects on different mutation generations of Impatiens seedlings,and prolonged light time properly compensated for the reduction of beneficial traits in the mutation offspring,which could provide a theoretical reference for the mutation breeding of Impatiens.

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Last Update: 2018-01-26