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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(8): 2327-2336
DOI: https://doi.org/10.20546/ijcmas.2019.808.269


Studies on the Effect of Cytokinin on Growth of African Marigold (Tagetes erecta L.) cv. Pusa Narangi Gainda
Manas Mandal1*, Soumen Maitra1, Anamay Sarkar1, Bappa Paramanik2, Indrajit Sarkar1 and Debasis Mahata3
1Department of Floriculture and Landscape Architecture, Uttar BangaKrishiViswavidyalaya, Pundibari, Cooch Behar, West Bengal, India
2Soil Science, DakshinDinajpur, KVK, Majhian, Patiram, DakshinDinajpur,
West Bengal, India
3Agronomy, Uttar DinajpurKrishiVigyan Kendra, Chopra, Islampur, Uttar Dinajpur, West Bengal, India
*Corresponding author
Abstract:

The experiment was carried out in two consecutive years 2016 and 2017 at Uttar BangaKrishiViswavidyalaya, CoochBehar, West Bengal to Studies on the effect of cytokinin on growth of African Marigold (Tagetes erectaL.) cv. PusaNarangiGainda. I was taken twelve different dose such as 25ppm, 50ppm,75ppm, 100ppm, 125ppm, 150ppm, 175ppm, 200ppm, 225ppm, 250ppm, 275ppm, 300ppm and one control.The experiment was conducted following RBD with 12 different levels of cytokinin ranging from 25 ppm, 50 ppm, 75 ppm, 100 ppm, 125 ppm. 150 ppm, 175 ppm, 200 ppm, 225 ppm, 250 ppm, 275 ppm and 300 ppm and compared to control (distilled water spray). The 13 treatments were replicated thrice. Results revealed that application of 25 ppm BA increased the plant height at 21 days after transplanting (23.19 cm), plant height at 42 days after transplanting (48.13cm), leaflet length at 21 days after transplanting (4.32 cm), Leaflet length at 42 days after transplanting (6.80 cm), Increase in the girth of stem at 42 days after transplanting was noticed with 275 ppm BA application (9.36 mm). Initially, side-shoot production was increased with 200 ppm BA application (4.80 cm) but at 42 days after transplanting higher number of side-shoots was obtained with 150 ppm BA application (10.80 cm). Shoot length was found maximum with 175 BA application both at 21 days (2.88 cm) and 42 days after transplanting (14.0 cm). Leaf production was found maximum with 250 ppm BA application in both at 21 days (3.80) and 42 days (13.07) after transplanting. The same treatment also showed higher leaf length at 42 days after transplanting (21.86 cm).Though at 21 days leaflet production was higher with 225 ppm BA application (16.07) but at 42 days after transplanting 300 ppm BA application showed higher leaflet production (24.07). Initially 200 ppm BA application improved leaflet length (4.93 cm) but finally maximum leaflet length was found with 25 ppm BA application. Leaf expansion was observed higher with foliar application of 200 ppm BA in both at 21 days (0.96 cm) and 42 days after transplanting (1.33 cm). Plants treated with same concentration reached the flower bud initiation stage earliest (46.60 days after transplanting). Whereas, 200 ppm solution showed least time period (6.66 days) for flower bud development and from the developing bud to full bloom stage, 25 ppm BA concentration showed the earliness (6.60 days).


Keywords: Marigold, cytokinin, Benzyl adenine, full blooming
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How to cite this article:

Manas Mandal, Soumen Maitra, Anamay Sarkar, Bappa Paramanik, Indrajit Sarkar and Debasis Mahata. 2019. Studies on the Effect of Cytokinin on Growth of African Marigold (Tagetes erecta L.) cv. Pusa Narangi Gainda.Int.J.Curr.Microbiol.App.Sci. 8(8): 2327-2336. doi: https://doi.org/10.20546/ijcmas.2019.808.269