Effect of bioregulators on growth, flowering and postharvest life of crossandra (Crossandra infundibuliformis (L.) Nees.)
| dc.contributor.advisor | Lila Mathew, K | |
| dc.contributor.author | Sreekala, C | |
| dc.contributor.author | KAU | |
| dc.date.accessioned | 2019-04-05T05:24:15Z | |
| dc.date.available | 2019-04-05T05:24:15Z | |
| dc.date.issued | 1997 | |
| dc.description | PG | en_US |
| dc.description.abstract | Studies were carried out at College of Horticulture, Vellanikkara, Thrissur, Kerala from June 1996 to June 1997- to know the effect of bioregulators on growth, flowering and postharvest life of crossandra (Crossandra infundibuliformis (L.) Nees.). All the GA containing treatments (GA 100 ppm, 200 ppm either alone or in combination with 1 % urea) caused a significant increase in height, the most conspicuous one being GA 200 ppm. All the other vegetative growth parameters, viz., spreading habit, number of leaves, leaf area and number of branches were significantly increased by BA 200 ppm + 1 % urea, followed by GA 200 ppm treatment. Spike emergence after spray was earliest in CCC 500 ppm treated ones followed by paclobutrazol 1000 ppm + 1 % urea treatments. Month var variation was found to be prominent in most of the flowering and floral characters, along with their interaction with field treatments. In general GA containing treatments (GA l00 ppm + 1 % urea) caused quickest floret appearance after spike emergence while this treatment and BA 200 ppm + 1 % urea took maximum time for floret opening. Paclobutrazol 250 ppm + 1 % urea showed maximum delay in floret appearance while paclobutrazol 500 ppm + urea caused quickest opening of florets. BA 200 ppm + 1 % urea and GA 200 ppm treatments were found to have maximum desirable influence on number of spikes produced, number of florets per plant, number of florets in a spike, length of spike and stalk length of spike. Even though not much consistent and significant, CCC 500 ppm during October to January increased spike and floret yield. Weight of florets had a slight positive influence by GA treatments, while length and diameter of the florets had no significant consistent variation among treatments . Paclobutrazol containing treatments envisaged almost complete suppression of growth and flowering. Chlorophyll 'a' content was maximum in CCC 500 ppm while chlorophyll 'b' and total of chlorophyll 'a' and chlorophyll 'b' were maximum in paclobutrazol 500 ppm + 1 % urea treatment. CCC 500 ppm resulted in maximum carotene content of flowers. Pulsing, precooling and storage behaviour was not influenced by field treatments, while pulsing with 15% sucrose + 500 ppm 8-HQ and storage under refrigerated conditions in 200 and 300 guage polythene covers was found superior for extending the storage life and other postharvest characters of crossandra spike. Vase life without storage was maximum for BA 100 ppm treatment and 3% sucrose + 100 ppm CoCl2 was found to be the best vase solution, while interac- tion effect causes ZnS04 0.25% with and without urea to have the maximum vase life in the above solution. | en_US |
| dc.identifier.citation | 171301 | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810100513 | |
| dc.keywords | Pomology and floriculture, crossandra, firecracker flower, commercial flower crop | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Department Of Pomology And Floriculture, College Of Horticulture, Vellanikkara | en_US |
| dc.sub | Horticulture | en_US |
| dc.subject | null | en_US |
| dc.theme | Studies effect of bioregulators in crossandra | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Effect of bioregulators on growth, flowering and postharvest life of crossandra (Crossandra infundibuliformis (L.) Nees.) | en_US |
| dc.type | Thesis | en_US |