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Effect of plant population, nutrition, pinching and growth regulators on plant growth, seed yield and quality of African marigold (tagetes erecta l.)

KrishiKosh

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Title Effect of plant population, nutrition, pinching and growth regulators on plant growth, seed yield and quality of African marigold (tagetes erecta l.)
 
Creator H.M.Sunitha
 
Contributor Ravi Hunje
 
Subject Seed Science and Technology
 
Description Two field experiments were conducted to study the influence of plant population,
nutrition, pinching and growth regulators on plant growth, seed yield and quality of African
marigold at Water and Land Use Management Institute (WALMI) Farm, Dharwad during
2004-05 and Laboratory studies were carried out at National Seed Project, University of
Agricultural Sciences, Dharwad.
The application of vermicompost as 50% RDN along with 50% RDF recorded
significantly higher plant height (100.32 cm), number of primary branches per plant (13.13),
number of flowers per plant (66.19), seed yield per plant (18.65 g) and seed yield per ha
(499.05 kg) and also recorded higher 1000 seed weight (3.36 g), germination percentage
(89.10), field emergence percentage (81.48), root length (6.22 cm), shoot length (5.55 cm),
seedling dry weight (11.53 mg) and vigour index (1047) compared to application of
recommended dose of fertilizer (RDF). While wider spacing of 60 x 60 cm recorded more
number of primary branches per plant (11.59), number of flowers per plant (59.65), seed
yield per plant (15.37 g) compared to closer spacing of 60 x 40 cm. However seed yield per
ha (453.47 kg) was significantly higher at closer spacing of 60 x 40 cm.
Significantly higher plant height (95.93 cm) was recorded in unpinched plants, while
pinched plants recorded significantly higher number of primary branches per plant (12.00),
number of flowers per plant (61.88), seed yield per plant (18.22 g) and seed yield per ha
(473.71 kg).
Among the growth regulator, GA3 200 ppm spray recorded significantly higher plant
height (101.21 cm), number of primary branches per plant (14.47), number of flowers per
plants (68.66), seed yield per plant (20.63 g) and seed yield per ha (531.54 kg) and also
recorded significantly higher 1000 seed weight (3.34 g), germination percentage (90.13),
field emergence percentage (77.10), root length (6.34 cm), shoot length (5.41 cm), seedling
dry weight (11.44 mg) and vigour index (1059) compared to ethrel 750 ppm.
 
Date 2016-10-25T16:47:13Z
2016-10-25T16:47:13Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81950
 
Format application/pdf
 
Publisher UAS, Dharwad