Seed longevity and its association with horticultural traits in broccoli (Brassica oleracea L. var. italica Plenck.)

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dc.contributor.advisorKapila, R.K.
dc.contributor.authorSood, Shivam
dc.date.accessioned2023-02-25T09:51:35Z
dc.date.available2023-02-25T09:51:35Z
dc.date.issued2022-12-13
dc.description.abstractStudy on seed longevity was carried out by packing the seeds of three broccoli varieties of Himachal Pradesh in high density polyethylene (HDPE) bags and storing them under ambient condition (July 2021 to September 2022) following completely randomized design in four replications. The experimental material was also planted in the field during rabi 2021-22 following RBD in five replications to evaluate the varieties for 10 horticultural traits in order to establish an association of seed longevity with important horticultural traits. Data recorded after fixed bimonthly intervals over a period of 14 months revealed that most of the seed quality parameters viz. per cent germination, rate of germination, field emergence, seedling length, seedling dry weight and seed vigour indices I & II gradually declined, whereas electrical conductivity witnessed an increasing trend with the advancement of storage period. Amongst varieties, Palam Vichitra followed by Palam Samridhi exhibited better seed quality parameters as compared to Pusa Broccoli KTS-1 and the seed longevity was inferred from the per cent germination- final count of the three varieties of broccoli after the completion of the storage period of 14 months. After 14 months of seed storage, per cent germination of variety Palam Vichitra was found to be significantly higher followed by Palam Samridhi and Pusa Broccoli KTS-1. Field evaluation and further analysis of variance revealed that the mean sum of squares due to the varieties were significant for all the horticultural traits except plant height and head size index. Under the field conditions, Palam Vichitra was the best performing variety as compared to other two varieties. Correlation of seed per cent germination after 14 months of seed storage showed significant positive correlation with marketable yield per plant, leaf size without leaf stalk and harvest index. A significant negative correlation of per cent germination – final count after 14 months of seed storage with plant height was also recorded. Hence, dwarf varieties/genotypes producing more marketable yield per plant, having more leaf size without leaf stalk and high percentage of harvest index are likely to have seeds with better storage life/seed longevity.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810194499
dc.keywordsbroccoli, Seed longetivity, Horticultural traits, Brassica oleracea L. var. italica Plenck., HDPE bags,en_US
dc.language.isoEnglishen_US
dc.pages59en_US
dc.publisherCSK HPKV, Palampuren_US
dc.subSeed Science and Technologyen_US
dc.themeTo know seed longevity of important broccoli varieties of Himachal Pradesh and to establish association of seed longevity with important horticultural traits in broccoli.en_US
dc.these.typeM.Scen_US
dc.titleSeed longevity and its association with horticultural traits in broccoli (Brassica oleracea L. var. italica Plenck.)en_US
dc.typeThesisen_US
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