EFFECT OF SEED PRIMING AND PLANTING DATES ON GROWTH AND FLOWERING OF PANSY (Viola x wittrockiana Gams.)
KrishiKosh
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Title |
EFFECT OF SEED PRIMING AND PLANTING DATES ON GROWTH AND FLOWERING OF PANSY (Viola x wittrockiana Gams.)
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Creator |
SHARMA, RISHU
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Contributor |
DILTA, B.S.
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Subject |
costs, manpower, rice, tillage equipment, marketing margins, productivity, economics, sampling, diseases, fertilizers
pansy (Viola x wittrockiana Gams.),seed priming , planting dates,Effects,flowering |
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Description |
ABSTRACT The present investigation entitled, “Effect of seed priming and planting dates on growth and flowering of pansy (Viola x wittrockiana Gams.)” was carried out at experimental laboratory and farm of Department of Floriculture and Landscaping, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P) during September, 2010- September, 2011. The research work was accomplished in two separate experiments. First experiment was carried out under laboratory conditions in completely randomized design comprising five seed priming treatments viz., PEG-6000@300 g/l, GA3@20 mg/l, biopriming with Trichoderma viride @8 g/kg of seeds, hydropriming with water and control. The second experiment was carried out under open field conditions in split plot design comprising of five seed priming treatments (PEG-6000@300 g/l, GA3@20 mg/l, biopriming with Trichoderma viride @8 g/kg of seed, hydropriming with water and control) and four planting dates (17th October, 2nd November, 17th November, 2nd December). Under laboratory conditions, seed priming with GA3 @20 mg/l was found to be the best for improving the speed of germination (22.17), germination percentage (93.12 %), seedling length (6.55 cm), seedling fresh weight (15.80 mg), seedling dry weight (1.50 mg) and seed vigour index (609.6). However, minimum speed of germination (11.80), germination percentage (60.75 %), seedling length (3.15 cm), seedling fresh weight (10.30 mg), seedling dry weight (0.79 mg), seed vigour index (195.3) was recorded in non-primed or control seeds. Under field conditions, the seed priming with GA3@20 mg/l was found to be the best for earliest 50% seedling emergence (9.33), maximizing seedling emergence percentage (88.00 %), plant height (27.30 cm), plant spread (27.75 cm), number of leaves per plant (280.00), earliest first flowering (101.20 days), number of flowers per plant (133.33), flower size (5.02 cm), number of capsules per plant (58.29), number of seeds per capsule (45.98), seed yield 83 (2.84 g), sale returns per plot (Rs. 698.04) and net profit per plot (Rs. 854.23) whereas delayed 50% seedling emergence (17.00 days), minimum seedling emergence percentage (61.75 %), plant height (18.88 cm), plant spread (20.13 cm), number of leaves per plant (189.50), delayed first flowering (103.50), lesser flowers per plant (89.44), smaller flowers (4.57 cm), lesser capsules per plant (34.86), lesser number of seeds per capsule (38.76), minimum seed yield (1.44 g), less sale returns per plot (Rs. 698.04) and minimum net profit per plot (Rs. 192.28) were found in non-primed or control seeds. However, among planting dates, planting done on 2nd November was found to be the best for maximizing plant height (28.54 cm), plant spread (28.59 cm), number of leaves per plant (326.60), earliest first flowering (100.30), number of flowers per plant (138.69), flower size (5.05 cm), number of capsules per plant (68.01), number of seeds per capsule (53.24), seed yield (3.64 g), increasing sale returns per plot (Rs.1734.21) as well as exhibited net profit per plot (Rs.1161.50). Whereas planting on 2nd December exhibited minimum plant height (16.54 cm), plant spread (20.20 cm), number of leaves per plant (137.40), number of flowers per plant (60.40), flower size (4.56 cm), number of capsules per plant (21.21), number of seeds per capsule (32.28), seed yield (0.69 g), sale returns per plot (Rs.339.62) and net profit per plot (Rs.-216.24). The interactive effects of seed priming and planting dates exhibited best results with respect to plant height (33.60 cm), plant spread (32.12 cm), number of flowers per plant (162.33), number of capsules per plant (77.50), seed yield per plant (4.30 g), sale returns per plot (Rs.2054.43) as well as net profit per plot (Rs.1539.70) in the interaction, P2 x D2 i.e. when seedlings raised from GA3 @ 20 mg/l primed seeds were planted on 2nd November. The minimum plant height (15.07 cm), plant spread (18.46 cm), number of flowers per plant (44.15), number of capsules per plant (14.23), seed yield per plant (0.40 g), sale returns per plot (Rs.237.78) was recorded for the interaction P5 x D4 i.e. when seedlings raised from control or non–primed seeds were planted on 2nd December. From the present studies, it is concluded that seed priming with GA3 @ 20 mg/l and transplanting of seedlings on 2nd November is best for improving the parameters of nursery production, growth, flowering and seed production of pansy for most economical cultivation of pansy under mid-hill conditions of Himachal Pradesh |
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Date |
2016-12-27T12:16:55Z
2016-12-27T12:16:55Z 2012 |
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Type |
Thesis
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Identifier |
47804
http://krishikosh.egranth.ac.in/handle/1/93173 |
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Language |
en
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Format |
application/pdf
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