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EVALUATION OF CHRYSANTHEMUM (Dendranthema grandiflora Tzvelev.) CULTIVARS FOR GROWTH, YIELD AND STORAGE LIFE UNDER OPEN FIELD CONDITIONS

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Title EVALUATION OF CHRYSANTHEMUM (Dendranthema grandiflora Tzvelev.) CULTIVARS FOR GROWTH, YIELD AND STORAGE LIFE UNDER OPEN FIELD CONDITIONS
 
Creator SANTHI SWAROOPINI BANTU
 
Contributor Dr. K. SWARAJYA LAKSHMI
 
Subject growth, yield ,storage life ,heritability, PCV
 
Description The present experiment entitled “Evaluation of Chrysanthemum (Dendranthema grandiflora Tzvelev.) cultivars for growth, yield and storage life under open field conditions” carried out at Horticultural College and Research Institute, Anantharajupet, Dr. Y.S.R. Horticultural University, Andhra Pradesh during the kharif season of year 2012-13 to select suitable cultivars for commercial cultivation and the data collected from this experiment was further utilized for the genetic analysis viz., heritability, PCV (Phenotypic coefficient of variation), GCV (Genotypic coefficient of variation), correlation and path coefficient analysis.
The experiment laid out with 13 different treatments in a randomized block design (RBD) with three replications. The treatments include twelve cultivars viz., Geethanjali, Rekha, Co-3, Raichur, Silper, PAU-B-107, Pusa Anmol, Pusa Semidouble, Rajamundry, Shanthi, Yelllow Double, White Double along with one check (Chandini).
Among the vegetative characters, cv.Geethanjali recorded maximum plant height (26.07, 42.28, 53.63, 58.31 cm) at 30, 60, 90 and 120 DAT, Where as cv.PAU-B-107 recorded Maximum plant spread (22.73, 40.20, 48.08, 51.27 cm) and numbers of primary branches (5.96, 10.87, 14.97, 16.30) at all the stages of crop growth and also produced maximum number of suckers plant-1 (21.50).
Significant variation was observed for flower characters among different cultivars. Early flower bud initiation (63.33 days), minimum days taken to 50% flowering (93.00 days), lowest number of days to first harvest (112.33 days), maximum duration of flowering (71.83 days) and maximum flower diameter (5.90 cm) was recorded by the cv.Co3. Maximum number of flowers spray-1 (16.50), maximum number of flowers plant-1 (169.33) and maximum flower weight (5.40 g) were recorded by the cv.PAU-B-107. Spray length was maximum in cv.Geethanjali (25.23 cm) followed by cv.Raichur (25.10 cm).
Among the thirteen cultivars studied PAU-B-107 recorded maximum number of days to 50% flower wilting when kept in 200 gauge polyethylene bag (6.67 days) followed by cv.Rajamundry (5.87 days) when compared to other packing materials studied.
Cv. PAU-B-107 exhibited more resistance towards the pest and disease infestation with minimum number of Spodoptera litura plant-1 (0.67) and minimum PDI (Alterneria leaf blight) (5%).
Maximum flower yield plant-1 (293.33 g), yield plot-1 (10.56 kg) and yield hectare-1 (264 q) was found maximum in the cv.PAU-B-107 due to production of more number of flowers plant-1 which resulted into maximum net returns (Rs 2,67,510 ha-1) and B:C ratio (2.08).
With respect to genetic parameters number of flowers plant-1, spray length (cm), flower diameter (cm), number of flowers spray-1, flower weight (g) and flower yield plant-1 (g) had high PCV, GCV, heritability and genetic advance as percent of mean where in improvement in these characters which can be brought through simple selection programe. In correlation studies, number of flowers plant-1, flower diameter (cm), flowering duration (days) and number of flowers spray-1 showed significant positive correlation with yield both at phenotypic and genotypic level suggesting good scope for improvement of yield. In Path coefficient analysis, flowering duration (days), number of flowers plant-1 and flower weight (g) directly influenced the flower yield as first ranking components.
Further, among all the cultivars studied PAU-B-107, Co-3 and Pusa Anmol were found to be promising regarding growth and yield characters and the same may be recommended for commercial cultivation under open field conditions.
 
Date 2016-07-23T13:31:12Z
2016-07-23T13:31:12Z
2013-09
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69575
 
Language en
 
Format application/pdf
 
Publisher Dr. Y.S.R. HORTICULTURAL UNIVERSITY