Effect of extended day length on growth and flower production in Kalanchoe (Kalanchoe blossfeldiana poelln.)
dc.contributor.advisor | Ranjit Singh | |
dc.contributor.author | Kamath, Shantesh Ramesh | |
dc.date.accessioned | 2021-03-19T03:56:24Z | |
dc.date.available | 2021-03-19T03:56:24Z | |
dc.date.issued | 2020 | |
dc.description.abstract | The present investigation entitled ―Effect of extended day length on growth and flower production in Kalanchoe (Kalanchoe blossfeldiana Poelln.)‖ was carried out at the research farm of the Department of Floriculture and Landscaping, Punjab Agricultural University, Ludhiana during 2019-20 to study the effect of different durations of time and number of days of night interruption on various vegetative and floral attributes. Plants were propagated from terminal cuttings. Rooted cuttings are transplanted into pots of 15 cm diameter comprising of Soil and Farm Yard Manure during August. The long days were provided by extending the day length by artificial light source (CFL bulbs) starting from October 7 for 20(Oct 7- Oct 26), 30(Oct 7- Nov 5) and 40(Oct 7- Nov 15) days as night interruption for 30 minutes and 60 minutes from 23:30 to 00:00 and 23:00 to 00:30 respectively. Plants put under natural day length served as control. The experiments were laid out as per treatments in Factorial Completely Randomized Design (CRD) with five replications comprising six pots per replication. The photoperiodic treatments in the form of night interruption significantly (p<0.05) affected the plant growth and flowering in Kalanchoe. Impotant qualitative criteria in potted plant industry, compact plant growth with minimum plant height (26.20 cm), plant spread (19.17 cm) and number of branches per plant (2.93) is reported by exposing the plants to 60 min. night interruption for 20 days. Stem girth, petiole thickness, leaf length and leaf width showed non-significant differences to all the treatments. However, leaf thickness is reported inversely related to night interruption. While the plants exposed to 60 min. of night interruption for 40 days are reported to delay the flowering significantly upto 1½ month as compared to control where no artificial lighting in the form of night interruption was employed. Maximum number of days to flower bud appearance (138.07 days), days to color break stage (203.79 days) and days to 50% opening of flowers (232.23 days) was reported under 60 min. of night interruption for 40 days. Therefore, delayed flower production in Kalanchoe upto 45 days can be achieved by 60 min. of night interruption for 40 days along with acceptable quality pot plant. Significant variable amount of anthocyanin and total phenols reported with photoperiodic treatment which confirms that photoperiod influenced biosynthesis of anthocyanin and phenolic compound in Kalanchoe. | en_US |
dc.identifier.citation | Kamath, Shantesh Ramesh (2020). Effect of extended day length on growth and flower production in Kalanchoe (Kalanchoe blossfeldiana poelln.) (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India. | en_US |
dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810162660 | |
dc.keywords | Kalanchoe blossfeldiana, night interruption, photoperiod, pot plant | en_US |
dc.language.iso | English | en_US |
dc.pages | 58 | en_US |
dc.publisher | Punjab Agricultural University, Ludhiana | en_US |
dc.research.problem | Effect of extended day length on growth and flower production in Kalanchoe (Kalanchoe blossfeldiana poelln.) | en_US |
dc.sub | Floriculture and Landscaping | en_US |
dc.theme | Effect of extended day length on growth and flower production in Kalanchoe (Kalanchoe blossfeldiana poelln.) | en_US |
dc.these.type | M.Sc | en_US |
dc.title | Effect of extended day length on growth and flower production in Kalanchoe (Kalanchoe blossfeldiana poelln.) | en_US |
dc.type | Thesis | en_US |
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