volume 45 issue 2 (june 2011) : 161- 166
PHENOLOGICAL DEVELOPMENT AND HEAT UNIT REQUIREMENT OF WHEAT UNDER DIFFERENT DATES OF SOWING
1Department of Botany,
Punjab Agricultural University, Ludhiana - 141 004, India.
Published In
Indian Journal of Animal Research
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volume 45 issue 2 (june 2011) : 161- 166
PHENOLOGICAL DEVELOPMENT AND HEAT UNIT REQUIREMENT OF WHEAT UNDER DIFFERENT DATES OF SOWING
1Department of Botany,
Punjab Agricultural University, Ludhiana - 141 004, India.
ABSTRACT
A field experiment was conducted to work out relationship between heat unit requirement and phenophases of two wheat cultivars (PBW-343 and WH-542 ) under different dates of sowing (2 November , 1 December and 4 January). Growth duration and heat unit requirement of different phenophases was distinct for two cultivars, and showed a decline with delay in sowing. High temperature during reproductive development in late-sown crop forced the plants to attain maturity. For all phenological stages, plants of timely-sown crop accumulated more heat units in both cultivars than late-sown crop. The pheno-thermal indices decreased during vegetative stages but increased during reproductive phenophase with delay in sowing. The cultivar, PBW-343 took more number of days, accumulated more heat units and used heat more efficiently; and thus produced higher grain yield than WH-542. The timely-sown crop used heat more efficiently and yielded higher than late-sown crop. It was concluded that timely- sown crop exhibited best growth and grain yield as the favorable environmental conditions coincided with heat unit requirement of different phenophases of wheat.
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In this Article
APC
APC cover the cost of turning a manuscript into a published manuscript through peer-review process, editorial work as well as the cost of hosting, distributing, indexing and promoting the manuscript.
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Submit your manuscript through user friendly platform and acquire the maximum impact for your research by publishing with ARCC Journals.
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Published In
Indian Journal of Animal Research