|Table of Contents|

Induction and Change of Its Characteristics of Tetraploid Muskmelon(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年04期
Page:
104-107
Research Field:
Publishing date:

Info

Title:
Induction and Change of Its Characteristics of Tetraploid Muskmelon
Author(s):
ZHANG YongFANG Yong-linDENG Li-jiaGENG Li-zheLI Chang-xinZHANG Xian
College of Horticulture,Northwest Agricultural and Forestry University,Key Laboratory of Northwest Horticultural Plant Biology and Germplasm Enhancement,Ministry of Agriculture,Yangling,Shaanxi 712100
Keywords:
muskmelontetraploidmutation breeding
PACS:
S 652.603.6
DOI:
-
Abstract:
Three diploid varieties were treated by removing growth point of seedlings and dripping 0.2% colchicines onto the stem tips to induce tetraploid muskmelon.The results showed that the tetraploid mutation rate of netted melon ‘M066’ was 54.4%,that of smooth rind melon such as ‘M072’ and ‘M0544’ were 20.0% and 23.3% respectively.Compared to autotetraploid with original diploid,the length of lateral branch internode was shorter,the size of corolla and leaf were larger,the number of chloroplast per guard cell increased.But the number of perfect seeds per fruit,the stainability of pollen grains,fruit weight and the index of fruit-type decreased.The flesh qualities of soluble solid content declined,but its thickness was same as original diploid.These results demonstrated the mutagenic effects were different according to genotypes,and there were significant changes in physiological and biochemical characteristics between autotetraploid and diploid.

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Last Update: 2014-08-26