Development of temperate basmati rice: a multi-year study on performance and adaptation under high altitude conditions of Northern Himalayas

Abstract In the present study, an effective secondary selection of transgressive variants from a homozygous population of Pusa Sugandh 3 (PS3) has led to the development of basmati variant SKUA 494. SKUA 494 exhibited a grain yield (7.9 t/ha) with superiority of 21.5% over its progenitor (6.5 t/ha)....

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Published inThe Journal of agricultural science Vol. 157; no. 7-8; pp. 611 - 627
Main Authors Sofi, N. R., Shikari, A. B., Sofi, M., Hussain, A., Khan, G. H., Wani, S. H., Mohiddin, F. A., Ganai, M. A., Parray, G. A., Sheikh, F. A., Dar, Z. A., Bhat, N. A.
Format Journal Article
LanguageEnglish
Published Cambridge Cambridge University Press 01.10.2019
Subjects
Adaptability
Adaptation
Agricultural production
Amylose
Cold
Cooking
Crop yield
Cultivation
Flowering
Gene mapping
Gene polymorphism
High altitude
Polymorphism
Population
Quality
Quantitative trait loci
Rice
Seasons
Stability
India
Kashmir India
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Summary:Abstract In the present study, an effective secondary selection of transgressive variants from a homozygous population of Pusa Sugandh 3 (PS3) has led to the development of basmati variant SKUA 494. SKUA 494 exhibited a grain yield (7.9 t/ha) with superiority of 21.5% over its progenitor (6.5 t/ha). Besides, the genotype revealed an earliness of about 13 and 15 days for flowering and maturity, respectively. Hulling, milling and head rice recovery traits of SKUA 494 were comparatively better over the controls PS3 and Pusa Basmati 1509. No significant differences in the cooking quality were observed in SKUA 494 over its parental line. Quality traits of SKUA 494 revealed an intermediate score for alkali spreading value, besides similar values for gel consistency and amylose content in comparison to PS3. On the basis of stability variables, stability index and overall mean for most of the traits, SKUA 494 depicted stable performance across the locations and over the years. Molecular analysis based on simple sequence repeat markers revealed polymorphism at locus flanking the quantitative trait loci for days to heading ( Hd6 ) between SKUA 494 and its parent (PS3). Based on overall superiority in the performance and adaptability of SKUA 494, the variety has been recommended to farmers for general cultivation under temperate ecology.
ISSN:0021-8596
1469-5146
DOI:10.1017/S0021859620000088