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Aneknan Machuay. Effects of Water Deficit at Tasseling on Photosynthesis, Development, and Yield of Corn. (). Kasetsart University. Office of the University Library. : , ต.ค-ธ.ค. 2548.
Effects of Water Deficit at Tasseling on Photosynthesis, Development, and Yield of Corn
Name: Nawarat Udomprasert
Organization :
Kasetsart University, Kamphaeng Saen Campus. Faculty of Agriculture. Department of Agronomy
Name: Janjaree Kijjanon
Organization :
Department of Agriculture. Rice Research Institute. Monitoring and Evaluation Section
Name: Katharat Chusri-iam
Organization :
Kasetsart University, Kamphaeng Saen Campus. Faculty of Agriculture. Department of Agronomy
Name: Aneknan Machuay
Organization :
Kasetsart University, Kamphaeng Saen Campus. Faculty of Agriculture. Department of Agronomy
keyword:
water deficit
;
yield
;
corn
Abstract:
This study was conducted to determine the effects of water deficits on net assimilation rates and development which were causes of grain yield reduction in maize. Two maize inbreds, Ki3 (purported drought sensitive) and Ki11 (purported drought tolerance), were pot-grown in greenhouse. Plants were exposed to water deficit by withholding water until wilting occurred at tassel initiation and at anthesis. Water deficit at both stages reduced net assimilation rates (NAR) and relative growth rates (RGR) significantly in both maize inbreds. The reduction was more evident in Ki3 than that in Ki11. Water deficit at tassel initiation increased anthesis-to-silking interval (ASI) for 3 and 2 days in Ki3 and Ki11, respectively, while water deficit at anthesis increased ASI for only 1.25 and 0.75 days in Ki3 and Ki11, respectively. Considering yield and yield components, it was found that water deficits reduced ear girth, seed weight, grain yield, and harvest index in both inbreds. Water deficit at tassel initiation showed greater effects on those components than did the one at anthesis.
Kasetsart University. Office of the University Library
Address:
BANGKOK
Email:
tdckulib@ku.ac.th
Created:
ต.ค-ธ.ค. 2548
Modified:
2552-10-07
Issued:
2009-10-07
บทความ/Article
application/pdf
วิทยาสารเกษตรศาสตร์ (สาขาวิทยาศาสตร์), 39(4) หน้า 546-551
eng
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.041616 วินาที
Nawarat Udomprasert
| Title | Contributor | Type |
|---|---|---|
| Effects of Water Deficit at Tasseling on Photosynthesis, Development, and Yield of Corn
มหาวิทยาลัยเกษตรศาสตร์ Nawarat Udomprasert;Janjaree Kijjanon;Katharat Chusri-iam;Aneknan Machuay | บทความ/Article | |
| Root Responses to Water Deficit under Rain-fed Lowland Rice
มหาวิทยาลัยเกษตรศาสตร์ Soraya Uyprasert;Theerayut Toojinda;Nawarat Udomprasert;Somvong Tragoonrung;Apichart Vanavichit | บทความ/Article |
Janjaree Kijjanon
| Title | Contributor | Type |
|---|---|---|
| Effects of Water Deficit at Tasseling on Photosynthesis, Development, and Yield of Corn
มหาวิทยาลัยเกษตรศาสตร์ Nawarat Udomprasert;Janjaree Kijjanon;Katharat Chusri-iam;Aneknan Machuay | บทความ/Article |
Katharat Chusri-iam
| Title | Contributor | Type |
|---|---|---|
| Effects of Water Deficit at Tasseling on Photosynthesis, Development, and Yield of Corn
มหาวิทยาลัยเกษตรศาสตร์ Nawarat Udomprasert;Janjaree Kijjanon;Katharat Chusri-iam;Aneknan Machuay | บทความ/Article |
Aneknan Machuay
| Title | Contributor | Type |
|---|---|---|
| Effects of Water Deficit at Tasseling on Photosynthesis, Development, and Yield of Corn
มหาวิทยาลัยเกษตรศาสตร์ Nawarat Udomprasert;Janjaree Kijjanon;Katharat Chusri-iam;Aneknan Machuay | บทความ/Article |