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Effects of Infiltrating Irrigation and Overhead Irrigation or Sprinkler Irrigation on the Seed Germination and Seedling Growth of Creeping Bentgrass

渗灌和喷灌对匍匐剪股颖种子萌发与幼苗生长的影响



全 文 :!23" !5#
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犱狅犻:10.11733/j.issn.10070435.2015.05.018
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犈犳犳犲犮狋狊狅犳犐狀犳犻犾狋狉犪狋犻狀犵犐狉狉犻犵犪狋犻狅狀犪狀犱犗狏犲狉犺犲犪犱犐狉狉犻犵犪狋犻狅狀狅狉犛狆狉犻狀犽犾犲狉犐狉狉犻犵犪狋犻狅狀
狅狀狋犺犲犛犲犲犱犌犲狉犿犻狀犪狋犻狅狀犪狀犱犛犲犲犱犾犻狀犵犌狉狅狑狋犺狅犳犆狉犲犲狆犻狀犵犅犲狀狋犵狉犪狊狊
LILiangying1,FEILing2,MENGDepeng2,WANGZhaolong1,2
(SchoolofAgricultureandBiology,ShanghaiJiaotongUniversity,Shanghai200240,China)
犃犫狊狋狉犪犮狋:Inordertodiscusstheapplicationofinfiltratingirrigationonturfestablishment,apotexperi
mentingrowthchamberwasusedtocomparetheeffectsofinfiltratingirrigationandsprayirrigationon
seedgerminationandseedlinggrowthofcreepingbentgrass(犃犵狉狅狊狋犻狊狊狋狅犾狅狀犻犳犲狉犪).Theresultsshowed
thatsprayirrigationhadbetterseedgerminationvigor,andhigherturfdensity,andhigherturfcoverage
thaninfiltratingirrigationaftersowing.Duringthe30daysaftersowing,therewaslittledifferencein
seedlinggrowthbetweentwoirrigationmethods.However,after30days,infiltratingirrigationhadfaster
plantgrowth,indicatedbyhigherplantheight,moreleavesandtilersperplant,andhighervertical
growthrate,andmorebiomassafterestablishment(50d),whencomparedtosprayirrigation.Thefaster
seedlinggrowthunderinfiltratingirrigationlateroncompensatedforthelessseedgerminationatthebegi
ning,andnosignificantdifferencewasobservedonbiomassperunitareaandrootlengthbetweentwoirri
gationmethods.Theresultsindicatedthatinfiltratingirrigationcouldbeusedforcreepingbentgrasses
tablishment.
犓犲狔狑狅狉犱狊:Infiltratingirrigation;Seedgermination;Seedlinggrowth;Creepingbentgrass
EFGH
:20140909;IJGH:20150104
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Fig.1 Effectsoftwoirrigationmethodsonseedgerminationofcreepingbentgrass
ò

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Note:Differentsmallettersindicatesignificantdifferencebetweentwoirrigationmethodsatthe0.05level,thesameasbelow
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Table1 Effectsoftwoirrigationmethods
onturfdensityofcreepingbentgrass
ÿYÌcp
Daysaftersowing/d
G¨ Density/plants·cm-2

Infiltratingirrigation

Sprayirrigation
10 1.16b 3.16a
20 2.00b 3.84a
30 2.56b 5.16a
40 4.04b 5.96a
50 4.96b 6.20a
  ò:P+WXwéBCPó2Y¤·N“Do—r(犘<
0.05)。šX
Note:Differentsmallettersindicatesignificantdifferencebe
tweentwoirrigationmethodsatthe0.05level.Thesameasbelow
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Table2 Effectsoftwoirrigationmethodsonthe
verticalgrowthrateofcreepingbentgrass
ÿYÌcp
Daysaftersowing/d
]Ó:u¶¨
Verticalgrowthrate/mm·d-1

Infiltratingirrigation

Sprayirrigation
10 3.72a 2.9b
20 2.81a 3.48a
30 3.33a 3.06a
40 3.27a 1.71b
50 2.23a 2.43a
\3 2„áèUØ%ãäåæçF#0 ¡
Table3 Effectsoftwoirrigationmethodson
plantheightofcreepingbentgrass
ÿYÌcp
Daysaftersowing/d
ìPlantheight/cm

Infiltratingirrigation

Sprayirrigation
10 3.72a 2.90b
20 6.53a 6.38a
30 9.87a 9.44a
40 13.14a 11.16b
50 15.37a 13.59b
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Table4 Effectsoftwoirrigationmethods
ontilersofcreepingbentgrass
ÿYÌcp
Daysaftersowing/d
œ+Öp Tilersperplant

Infiltratingirrigation

Sprayirrigation
10 1.08a 1.00a
20 1.68a 1.58a
30 2.33a 1.68b
40 2.92a 1.67b
50 4.39a 2.22b
\5 2„áèUØ%ãäåæçëFìÝh0 ¡
Table5 Effectsoftwoirrigationmethods
onplantleavesofcreepingbentgrass
ÿYÌcp
Daysaftersowing/d
œ`©pLeavesperplant

Infiltratingirrigation

Sprayirrigation
10 2.22a 1.90b
20 4.18a 4.13a
30 6.95a 5.38a
40 9.32a 5.93b
50 11.28a 6.24b
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(犘<0.05),ҜY
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Table6 Effectsoftwoirrigationmethodsonbiomassandrootlengthofcreepingbentgrass
^X
Treatment
œ:9ë
Biomassperplant/mg·tiler-1
`:9ë
Total

Shoot
¼A
Root
¼u
Root
length/cm
f\:9ëBiomass/mg·cm-2
`:9ë
Total

Shoot
¼A
Root

Infiltratingirrigation
11.52a 6.36a 5.16a 12.70a 56.92a 31.12a 25.54a

Sprayirrigation
9.38b 5.03b 4.36b 12.75a 58.10a 31.38a 26.97a
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Table7 Effectsoftwoirrigation
methodsonturfcoverage
ÿYÌcp
Daysaftersowing/d
NŒç¨ Turfcoverage/%

Sprayirrigation

Infiltratingirrigation
10 21.75a 16.75b
20 54.00a 25.75b
30 89.00a 56.25b
40 93.50a 78.75b
50 100.00a 96.50b
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u>?
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