scholarly journals Studies on the Effect of Plant Growth Regulators on Growth, Flowering and Xanthophyll Content of African Marigold (Tagetes erecta L.)

2020 ◽  
Vol 9 (11) ◽  
pp. 3767-3771
Author(s):  
V. Thirumal Murugan ◽  
K. Manivannan ◽  
S. Nanthakumar
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Tagetes Erecta ◽  
African Marigold ◽  
Tagetes Erecta L

scholarly journals RESPONSE OF PLANT GROWTH REGULATORS ON THE GROWTH, FLOWERING AND YIELD ATTRIBUTES OF AFRICAN MARIGOLD (TAGETES ERECTA. L)

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Kousika. S ◽  
Ajish Muraleedharan ◽  
K. Sha ◽  
P.K. karthikeyan ◽  
C. Praveen Sampath Kumar ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Foliar Application ◽  
Block Design ◽  
Tagetes Erecta ◽  
Herbaceous Plant ◽  
Flower Bud ◽  
Yield Attributes ◽  
African Marigold

Tagetes is a genus of annual, perennial or herbaceous plant in the family Asteraceae. Most of the species have pinnate green leaves. Blooms are naturally occurring in golden, orangeyellow, and white colour, often with maroon highlights. Floral heads are 4 to 6 cm in diameter, generally with both ray florets and disc florets. The present study was conducted at the post graduate research laboratory at Department of Horticulture, Faculty of Agriculture, Annamalai University to find out the “Effect of plant growth regulators on flowering and yield of African marigold (Tagetes erecta Linn)”. The experiment was laid out in Randomized Block Design with three replications. There were ten treatments, viz., GA3 100 ppm, GA3 200 ppm and GA3 300 ppm, NAA 100 ppm, NAA 200 ppm, NAA 300 ppm, Ethrel 50 ppm, Ethrel 100 ppm, and Ethrel 150 ppm and control. Among the growth regulators tried, GA3 200 ppm as foliar application on 30 and 60 days after transplanting registered the highest values for plant characters like plant height (47.1 cm), number of branches ( 35.1), days taken to first flower bud appearance (39.3 days), days taken to flower opening (37.6 days), longevity of flower (11.17 days), stalk length (12.1 cm), diameter of flower (7.8 cm), number of flowers per plant (40.3), weight of the single flower (9.1 g), yield of flowers per plant (337 g) and flower yield per plot (11.1 kg). From the present study, it is recommended that spraying of GA3 200 ppm on 30 and 60 days after transplanting improved yield and quality of African marigold flowers.

Response of INM to Plant growth, Flower yield and Shelf life of African marigold (Tagetes erecta L.) cv. Pusa Basanti Gainda

2016 ◽  
Vol 1 (01) ◽  
pp. 108-112
Author(s):  
Pushpendra Kumar ◽  
Vijay Kumar ◽  
Deepak Kumar
Keyword(s):  
Plant Growth ◽  
Shelf Life ◽  
Block Design ◽  
Cost Ratio ◽  
Tagetes Erecta ◽  
Flower Bud ◽  
Economic Point ◽  
Flower Yield ◽  
African Marigold ◽  
Tagetes Erecta L

The present investigation entitled “Effect of Integrated nutrient management (INM) on Plant growth, Flower yield and shelf life of African Marigold (Tagetes erecta L.) c.v. Pusa basanti” , was under taken at department of horticulture, during the year 2013-14. The experiment was laid out in randomized block design with 13 treatments replicated thrice. The treatments comprised of FYM, vermicompost, poultry manure and bio- fertilizer (Azotobacter) with 25% RDF, 50% RDF and 75% RDF in different combinations including control (RDF). The results revealed that application of 75% RDF + 25% vermicompost (T2) produced significantly maximum plant height (76.77 cm), number of primary and secondary branches per plant (19.40, 33.47 respectively), number of leaves per plant (209.6), earliest in days to first flower bud initiation (50.07), days to first flowering (58.07) and days to 50% per cent flowering (62.87), Also number of flowers per plant (44.07), flower diameter (6.96 cm), flowering duration (54 days), average flower weight (8.52 g), flower yield per plant (375.42 g) and flower yield per plot (3.51 kg), flower yield per hectare (16.65 t) as compared to control and with application of 50% RDF + 50% vermicompost (T6) showed maximum shelf life (6.70 days) of flowers at room temperature. Economic point of view treatment T2 was found to be most economically viable in terms of gross return, net return and benefit cost ratio (2.52:1).

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