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EFFECT OF SPACING, PINCHING AND PLANT BIO REGULATORS ON GROWTH, FLOWERING AND SEED YIELD IN CHINA ASTER (Callistephus chinensis L. Nees)

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Title EFFECT OF SPACING, PINCHING AND PLANT BIO REGULATORS ON GROWTH, FLOWERING AND SEED YIELD IN CHINA ASTER (Callistephus chinensis L. Nees)
 
Creator K. PAVAN KUMAR
 
Contributor Dr. T. PADMALA
 
Subject effect of spacing, pinching and plant bio regulators on growth, flowering and seed yield ,growth regulators, GA3 ,
 
Description Two field experiments were conducted to study the effect of spacing,
pinching and plant bio regulators on growth, flowering and seed yield in China aster
cv. Kamini at College farm, College of Horticulture, Rajendranagar, Hyderabad
during year the 2013-14. The closer spacing of 30 x 15 cm (S1) recorded
significantly higher plant height at 90 DAT (54.08 cm), minimum days to first
flowering (82.30) and 50% flowering (100.42), maximum flower stalk length (37.18
cm), number of flowers per plot (3684.37), flower yield per plot (4.66 kg), flower
yield per hectare (14.38 t), seed yield per plot (649.12 g) and seed yield per hectare
(2003.46 kg). While wider spacing of 45 x 30 cm (S3) recorded more number of
primary branches per plant (27.51), number of secondary branches per plant (72.47)
and plant spread (44.84 cm), maximum flower diameter (6.20 cm), number of
flowers per plant (65.88), flower yield per plant (70.56 g) and seed yield per plant
(12.40 g). Significantly higher plant height at 90 DAT (55.87 cm) was recorded in
unpinched plants, while plants pinched at 20 DAT recorded significantly higher
number of primary branches per plant (26.62), number of secondary branches per
plant (71.83), plant spread (44.52 cm), flower stalk length (36.83 cm), number of
flowers per plant (70.47), number of flowers per plot (3760.86), flower yield per
plant (73.46 g), flower yied per plot (4.01 kg) and flower yield per hectare (12.38 t),
seed yield per plant (13.07 g) seed yield per plot (684.02 g) and seed yield per ha
(2161.58 kg) when compared to other pinching treatments (30 and 40 DAT).
Among the growth regulators, GA3 200 ppm spray recorded significantly
higher plant height at 90 DAT (60.10 cm), number of primary branches per plant
(24.60), number of secondary branches per plant (61.45), number of flowers per
plant (84.96), flower yield per plant (109.66 g), flower yield per hectare (16.58 t),
seed yield per plant (9.98 g), seed yield per ha (1509.31kg) and 1000 seed weight
(2.01g). GA3 200 ppm foliar spray was found to be on par with SA 200 ppm in
respect of number of primary branches (23.86), flower yield per hectare (15.90
t),seed yield per plant (9.85 g) and seed yield per hectare (1489.65 kg).
On the basis of present research findings it could be concluded that for
obtaining higher flower and seed yield per hectare in China aster cv. Kamini
planting at a closer spcacing of 30x15 cm and pinching at 20 DAT could be
recommended.
Salicylic acid 200 ppm foliar spray at 20 and 35 DAT could be
recommended for increased growth, flower and seed yield in China aster cv. Kamini
as it is more cheaper than GA3.
 
Date 2016-07-26T11:49:28Z
2016-07-26T11:49:28Z
2014-07
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69894
 
Language en
 
Format application/pdf
 
Publisher Dr. Y.S.R. HORTICULTURAL UNIVERSITY