Estimation of heterotic effects under water deficit conditions in rapeseed genotypes (Brassica napus L.)

Water stress is one of the primes constrains for numerous field crop production including rapeseed. The development of water stress tolerant rapeseed varieties is considered as an efficient and effective approach to face the challenges of water scarcity. However, to carry out genetic analysis such a...

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Bibliographic Details
Published in:Pure and applied biology 2024-03, Vol.13 (1), p.1-14
Main Author: Rao, Sajid Hussain
Format: Article
Language:English
Subjects:
Agricultural production
Brassica
Brassica napus
Chlorophyll
Crop production
Crop yield
Crops
Drought
Flowering
Genetic analysis
Genotypes
Growing season
Heterosis
Hybrids
Oils & fats
Plant breeding
Plants (botany)
Proteins
Rape plants
Rapeseed
Seeds
Stems
Water deficit
Water scarcity
Water stress
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Summary:Water stress is one of the primes constrains for numerous field crop production including rapeseed. The development of water stress tolerant rapeseed varieties is considered as an efficient and effective approach to face the challenges of water scarcity. However, to carry out genetic analysis such as, heterosis help to evolve high yielding crop varieties for stress breeding. In this context, six parents and fifteen Fi hybrids were grown against water stresses during growing season 2019-20 under randomized complete block design in factorial arrangements with three replications and two treatments, such as, (i) control (4 irrigations applied at four main growth stages i.e., stem growth, flowering, silique formation and maturity) and (ii) water stress at silique formation (2 irrigations applied at two main growth stages i.e., stem growth and flowering) for the estimation of genetic parameters. The obtained results of the mean squares showed that genotypes treatments and their interactions (genotype · treatment) were significantly differences (P
ISSN:2304-2478
2304-2478
DOI:10.19045/bspab.2024.130001