STANDARDIZATION OF CONDITIONS AND MEDIA FOR GROWING ROSES AND EVALUATION OF ROSE VARIETIES (Rosa spp.) UNDER AGROCLIMATIC CONDITIONS OF KONKAN
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Date
2021-06
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Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli
Abstract
The present investigation entitled “Standardization of
conditions and media for growing roses and evaluation of rose
varieties (Rosa spp.) under agroclimatic conditions of Konkan”
was undertaken at College of Horticulture, Dr. Balasaheb Sawant
Konkan Krishi Vidyapeeth, Dapoli during the year 2018-19 and
2019-20 by considering the commercial importance of roseto
maximize the production of farmers throughout the year.The whole
experiment was conducted in three sub experiments. The first
experiment was “Standardization of growing structure for
cultivation of roses under Konkan climatic conditions” which
consisted of three treatments viz., T1 (Open condition), T2
(Polyhouse condition) and T3 (Shadenet condition). The experiment
was laid out in and replicated seven times andshowed that the
significantly maximum plant height (102.45 cm), number of
branches (18.52), number of leaves (524.60), plant spread
(44.17cm), total leaf area (8393.67 cm2), earliest flower development
(44.29 days),stalk length (42.99 cm), number of flowers per plant
(25.25), number of flowers per m2(93.42), number of flowers per
hectare (9.35 lakh) was recorded in treatment T2 i.e. polyhouse,
whereas, significantly maximum bud length (4.23cm), bud diameter
(3.44cm), flower diameter (9.84 cm), number of petals per flower
(50.07), fresh weight of flower (20.43g), yield of flower (15.95 t/ha)
were recorded with treatment T1 i.e. Open condition. Maximum vase
life was observed in treatment T3 i.e. shadenet. The economic
analysis of the yield data revealed that T1 i.e. open condition
recorded highest net profit (Rs/-26741.64) promoting highest B:C
ratio (3.04)among growing conditions.
The second experiment was “Standardization of growing media
for rose cultivation” which consisted of five treatments viz., T1 i.e.
Soil, T2 i.e. Cocopeat, T3i.e. Soil + Cocopeat (1:1), T4 i.e. Soil +
Coirhusk (1:1), T5 i.e. Soil + FYM + Cocopeat + Ricehusk (1:1:1:1),
and was laid out in randomized block design and replicated four
times andrevealed that significantly maximum plant height (106.83
cm), number of branches (18.94), number of leaves (484.93), stem
diameter(1.83 cm), plant spread (44.06 cm), total leaf area
(8363.77cm2), earliest flower development (41.57 days),minimum
days for 50 per cent flowering (153.38 days), maximum duration of
flowering (320.63 days),stalk length (48.78 cm), bud length (4.35
cm), bud diameter (3.50 cm), flower diameter (8.77 cm), number of
petal per flowers (52.17), fresh weight of flower (19.15 g), number of
flowers per plant (25.99), number of flowers per plot (649.91),
number of flower per hectare (6.85), yield of flower (13.14 t/ha)
were recorded in treatment T5 i.e. Soil + FYM + Cocopeat +
Ricehusk. The treatments T3 i.e. Soil + Cocopeat recorded
significantly maximum vase life (11.63 days) of flower. In second
experiment of growing media the treatment T4 i.e. Soil + Coirhusk
recorded highest net profit (Rs/-13571.90) promoting highest B:C
ratio (1.43) among growing media.
The third experiment was “Evaluation of rose cultivars under
shadenet conditions (Hybrid Tea roses)” which consisted of seven
treatments viz., T1 (Bordo), T2 (Top Secret), T3 (Golden Strike), T4
(Avilanch), T5 (Tropical Amazon), T6 (Poisen), T7 (Gladiator) in
randomized block design and replicated seven times and it was
recorded that significantly maximum plant height (97.99 cm),
number ofleaves (525.41), total leaf area (8165.68 cm2), leaf area
index (6124.26), stalk length (41.29 cm), bud diameter (2.59 cm),
flower diameter (9.85 cm), number of petals per flower (44.50), fresh
weight of flower (17.25 g), number of flowers per plant (26.38),
number of flowers per m2 (97.59), number of flowers per hectare
(9.76), yield of flower (15.01 t/ha), vase life (12.93 days) was
recorded in treatment T7 i.e.Gladiator. However, significantly
maximum number of branches (19.02) and earliest flower
development (33.13 days) was recorded in treatment T3 i.e. Golden
Strike. In third experiment treatment T7 i.e. Gladiator recorded
highest net profit (Rs/-13654.75) promoting highest B:C ratio (1.80).
From above findings, it could be concluded that growing of the
‘Gladiator’ variety in ‘open condition’ using media ‘Soil + Coirhusk’
(1:1) under Konkan agro-climatic conditions was found economical.