Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition

Indian mustard [Brassica juncea (L.) Czern & Coss.] is a long day plant, which requires fairly cool climatic condition during growth and development for obtaining better seed yield. Various workers have correlated crop growth and development with energy requirement parameters, such as growing de...

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Main Authors:	Singh, Manoj Pratap, Lallu, Singh, N. B.
Format:	Online
Language:	English
Published:	Springer India 2014
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4164837/

id	pubmed-4164837
recordtype	oai_dc
spelling	pubmed-41648372014-09-18 Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition Singh, Manoj Pratap Lallu Singh, N. B. Original Article Indian mustard [Brassica juncea (L.) Czern & Coss.] is a long day plant, which requires fairly cool climatic condition during growth and development for obtaining better seed yield. Various workers have correlated crop growth and development with energy requirement parameters, such as growing degree days (GDD), photo-thermal unit (PTU), helios thermal unit (HTU), photo-thermal index (PTI) and heat use efficiency (HUE). Therefore, GDD requirement for different phenological stages of 22 newly developed Indian mustard varieties was studies during winter (rabi) seasons of 2009–10 and 2010–11 at student instructional farm of C.S. Azad University of Agriculture and Technology, Kanpur, (Utter Pradesh). Study revealed that RH-8814, NRCDR-02 and BPR-549-9 recorded higher GDD (1703.0, 1662.9 and 1648.0), PTU (19129.8, 18694.2 and 18379.8), HTU (11397.7, 11072.2 and 10876.0), PTI (13.25, 13.14 and 13.08) and HUE (4.11, 3.84 and 3.71) at physiological maturity, while higher HUE was recorded (9.62, 8.99 and 8.91 kg ha−1 degrees-day) at days after sowing (DAS) to 50 % flowering. On the basis of study mustard genotypes RH-8814, NRCDR-02 and BPR-549-9 were identified as most heat-tolerant, as they maintained higher values for energy related parameters. Seed yield was highly positively correlated with GDD (r = 0.61, 0.65 and 0.75), PTU (r = 0.66, 0.64 and 0.74), HTU(r = 0.79, 0.68 and 0.73) at the above these three phenological stages, while negatively correlated with PTI at anthesis and at maturity. Hence, these parents could be used in crossing programme for achieving further improvement. Springer India 2014-09-03 2014 /pmc/articles/PMC4164837/ /pubmed/25242823 http://dx.doi.org/10.1007/s40502-014-0072-0 Text en © The Author(s) 2014
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Singh, Manoj Pratap Lallu Singh, N. B.
spellingShingle	Singh, Manoj Pratap Lallu Singh, N. B. Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition
author_facet	Singh, Manoj Pratap Lallu Singh, N. B.
author_sort	Singh, Manoj Pratap
title	Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition
title_short	Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition
title_full	Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition
title_fullStr	Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition
title_full_unstemmed	Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition
title_sort	thermal requirement of indian mustard (brassica juncea) at different phonological stages under late sown condition
description	Indian mustard [Brassica juncea (L.) Czern & Coss.] is a long day plant, which requires fairly cool climatic condition during growth and development for obtaining better seed yield. Various workers have correlated crop growth and development with energy requirement parameters, such as growing degree days (GDD), photo-thermal unit (PTU), helios thermal unit (HTU), photo-thermal index (PTI) and heat use efficiency (HUE). Therefore, GDD requirement for different phenological stages of 22 newly developed Indian mustard varieties was studies during winter (rabi) seasons of 2009–10 and 2010–11 at student instructional farm of C.S. Azad University of Agriculture and Technology, Kanpur, (Utter Pradesh). Study revealed that RH-8814, NRCDR-02 and BPR-549-9 recorded higher GDD (1703.0, 1662.9 and 1648.0), PTU (19129.8, 18694.2 and 18379.8), HTU (11397.7, 11072.2 and 10876.0), PTI (13.25, 13.14 and 13.08) and HUE (4.11, 3.84 and 3.71) at physiological maturity, while higher HUE was recorded (9.62, 8.99 and 8.91 kg ha−1 degrees-day) at days after sowing (DAS) to 50 % flowering. On the basis of study mustard genotypes RH-8814, NRCDR-02 and BPR-549-9 were identified as most heat-tolerant, as they maintained higher values for energy related parameters. Seed yield was highly positively correlated with GDD (r = 0.61, 0.65 and 0.75), PTU (r = 0.66, 0.64 and 0.74), HTU(r = 0.79, 0.68 and 0.73) at the above these three phenological stages, while negatively correlated with PTI at anthesis and at maturity. Hence, these parents could be used in crossing programme for achieving further improvement.
publisher	Springer India
publishDate	2014
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4164837/
_version_	1613134122679533568

Thermal requirement of indian mustard (Brassica juncea) at different phonological stages under late sown condition

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