青岛农业大学学报(自然科学版)
27(4):
296
-299
,
2010
}ournal
0/
Qing
缸。
Agric
u1
tural
University
(Natural
Sc
ience)
文章编号:
1674
-148X(20
1O
)04
-0296-04
北方甘薯农艺性状与产量的相关性及灰色关联度分析
汪宝卿,王庆美,张海燕,解备涛,张立明
(山东省农业科学院作物研究所,山东济南
2501
∞)
摘要:通过对
14
个甘薯品种(系)的随机区组试验,分析了其农艺性状与产量的相关性和灰色关联度,结果表明:
在相关性分析中,鲜薯产量与干率
、
淀粉率和病情指数均量极显著负相关关系,与大中薯率显著正相关,与小薯率
显著负相关。薯干产量与分校数显著负相关,与干率呈显著正相关
。
淀粉产量与分校数显著负相关,与干率和淀
粉率均呈显著正相关。在关联度分析中,单株茎叶重、大中薯率、单株结薯数、结薯集中性、茎粗和整齐度对鲜薯产
量的关联度较高。茎粗、大中薯$
,
蔓长、单株结薯数、淀粉率和
干
率对薯干产量的关联度较高。而淀粉率、干率、
蔓长、茎租、单株茎叶重和单株结薯数对淀粉产量的关联度较高
。
因此,北方甘薯在高产栽培和品种选育方面,应
该选择茎基部粗、蔓长较短
、
分校数较少、薯块大小均匀、数量适中和大中薯率较高的品种。
关键词:甘薯:农艺性状;产量;相关性;关联度
中图分类号:臼
31
文献标
i
只码
:A
DOI:
10
.
3969
/
1.
ISSN
.
1674
-
148X.
2010.
04.
010
Correlation
and
Grey Relation Analysis between Agronomic Traits for Yield
of
Sweetpotato (Ipomoea batatas L. ) in Regional Trails
of
North China
WANG Bao-qing, W ANG Qing-mei , ZHANG Hai-yan , XIE Bei-tao, ZHANG Li-ming
(
Crop
Science
Research
Institute
of
Sh
皿
dong
Academy
of
Agricu
ural
Sciences
,
Jinan
250
I
∞,
China)
Abstract:
Correlation and grey relation analysis are used to analyze the relationship between agronomic traits and
yield of 14 sweetpotato varieties in regional trails of North China arranged by randomized block experimen
t. Resuhs
showed that there was extremely significant negative correlation between fresh weight and percentage of dry matter
content
, percentage of starch content , disease index , and positively correlated with percentage of large and middle
tuberous root
, while negatively correlated with. percentage of small tuberous roo
t.
DIγweight
of sweetpoato
per
667m
2
was positively correlated with percentage of dry matter content and and negatively correlated with number of
branch. Starch weight
per
667m
2
showed a significant positive correlation with percentage of dry matter content and
percentage of starch content
, while significant negative correlation with number of branch by correlation analysis.
Agronomic traits showed higher correlative degree with fresh weight orderly were weight of stem and leaf
per
plant.
percentage of large and middle tuberous root. number of tuberous root
per
plant.
centrality of tuberous root. stem
diameter. unifonnity of tuberous roo
t.
Agronomic traits showed higher correlative degree with dry weight orderly
were stem diameter. percentage of large and middle tuberous root. length of
vine.
number of tuberous root
per
plant.
percentage of starch content. percentage of
dIγmatter
conten
t.
While higher correlative degree was showed
orderly between starch weight and percentage of starch content
, percentage of dry matter conlent , length of vine ,
stem diameter. weight of stem and leaf
per
plant.
number of tuberous root
per
plant. Accordingly, plant with higher
stenn diameter
, shorter length of vine , fewer branch numbers. regular tuberous root. moderate number of tuberous
r
∞
t
,
higher percentage of big and middle tuberous root were preferred on high yield cultivation and variety choice.
收稿日朔:
2010
-09
-
IJ
基金项目:国家甘薯产业技术体系项目
(nycytx
-16 - B
-10)
资助
。
作者简介:汪宝卿,
(1
979
- )
,
男,山东临沂人,博士,助理研究员
,
主要从事植物激素生理和化学调控方面研究
通讯作者:张立明,
Email:
zhan
庐
nll
@
sina.
com