Original Research Article
Year: 2019 | Month: July | Volume: 6 | Issue: 7 | Pages: 441-447
Evaluation of Inbreds and Their F1s For Flowering and Post-Harvest Attributes in Snapdragon (Antirrhinum Majus L.)
Suneeta Singh1, Anil Kumar Saxena2
1Assistant Professor, School of Agricultural Sciences, Shri Guru Ram Rai University, Dehradun -248 001, Uttarakhand, India
2Principal, School of Agricultural Sciences, Shri Guru Ram Rai University, Dehradun -248 001, Uttarakhand, India
Corresponding Author: Suneeta Singh
ABSTRACT
The present investigation was carried out in half diallel crossing pattern using ten parental lines (AG-1, AG-2, AG-3, AG-4, AG-5, AG-6, Vilmorin, SA-1, Sant-11 and Sant-22) to evaluate the diversity created. The evaluation of F1s was done in two years 2016-2017 and 2017-2018 for flowering and post-harvest characters. The experimental material (10 parents and 45 F1s) was planted in Randomized Block Design. Twelve stems of each genotype were cut to 8 cm from the ground and placed in distilled water. Stems were discarded when last floret was about to wilt. Significant differences were noted among the genotypes for all the characters in both years. Among different genotypes of snapdragon, diameter of spike ranged from 4.29 to 12.61 mm. Maximum spike weight was observed in SA-1 × AG-4. This also gave highest number of open florets/spike and maximum weight of spike at senescence. Spike length was found to be maximum with SA-1, which was at par with SA-1 × AG-4. The maximum diameter of florets was recorded with AG-1 × Vilmorin, whereas maximum number of spikes per plant for cut-flower was recorded with AG-3 × AG-5. The cross AG-1 × Sant-11 was resulted in maximum number of florets per spike during both the years. However no definite pattern followed in per cent opening of florets. Vase life ranged from 11.00 days to 14.45 days during first year. Whereas in second year, it varied from 10.22 days to 21.50 days. This variation in range may be due to insect infestation occurred more during first year.
Key words: Snapdragon, Antirrhinum majus, Evaluation, Flowering, Post-harvest
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