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Dry-matter partitioning of late sown wheat under different irrigation schedules

Indian Agricultural Research Journals

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Title Dry-matter partitioning of late sown wheat under different irrigation schedules
 
Creator PAL, S K
VERMA, U N
THAKUR, R
SINGH, M K
UPASANI, R R
 
Subject wheat, Triticum aestivum, irrigation scheduling, dry-matter partitioning, yield
 
Description A field experiment was conducted during winter season of 1995-97 at Ranchi on sandy-loam soil in randomized blockdesign to study the effect of irrigation on dry-matter partitioning and yield of late sown wheat (Triticum aestivum L.emend. Fiori & Paol.). Treatment consisted of 11 irrigation schedules based on frequency and critical growth stages, viz4 irrigations at (i) crown root initiation + maximum tillering + boot + milk; 3 irrigations at (ii) crown-root initiation +maximum tillering + boot; (iii) crown-root initiation + boot + milk; (iv) crown-root initiation + maximum tillering + milk;(v) maximum tillering + boot+ milk and 2 irrigations at (vi) crown-root initiation + maximum tillering; (vii) crown-rootinitiation + boot; (viii) crown-root initiation + milk; (ix) maximum tillering + boot; (x) maximum tillering + milk and (xi) boot + milk. Wheat with 4 irrigations gave 27.2 and 64.5 % more grain yield than the crop with 3 (2 128 kg/ha) and 2 (1 646 kg/ha) irrigations respectively. Water-stress at maximum tillering and milk stages drastically reduced the grain yield by 34.7 and 25.9 % respectively compared with the crop with 4 irrigations (2707 kg/ha). Similarly crop with4 irrigations accumulated 60.2 % of total dry-matter (1 089 g/m2)in spike, 34.9% in stem and only 5% in the leaves at maturity. Moisture stress at maximum tillering caused maximum reduction in total dry-matter production (23.8 %) as well as spike dry-matter partitioning by approximately 4%.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-04-02
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/28749
 
Source The Indian Journal of Agricultural Sciences; Vol 70, No 12 (2000)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/28749/13013
 
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