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FAQ List

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Latest Dendrobium varieties for commercial cultivation of orchids?

Some of the commercially important dendrobium varities are Sonia, White daisy, Copper queen, Thanachi gold, Thoshika inabu

Planting material of orchids-can I multiply on my own?

Terminal stem cuttings with one or two healthy aerial roots are ideal as planting material of monopodial orchids. Basal cuttings of 30 cm length with a few roots and leaves are also good. Sympodial orchids are propagated by separation of  pseudobulbs. A plant with minimum two or three pseudobulbs with the basal root    is ideal for planting. Some of the sympodial varieties produce sprouts at the top of  pseudobulb which when fully-grown can be separated and planted. Tissue culture plants are however used for commercial production.

How many Jasmine plants I can plant and how much each plant can yield?

You can plant at a spacing of 2 X 1.5 m for Jasminum graniflorum, 1.5x1.5m for Jasminum sambac and Jasminum auriculatum and 1.2x1.2m in Jasminum       multiflorum. Pit size is 45x45x45 cm. Yield of flowers vary according to the species and management practices. Average yield is 7-8 tonnes/ha.

What are the commercial varieties of Gerbera grown in polyhouse and source of availability of planting material ?

- The important cultivars are Piton, Pink elegance, Savannah, Goliath, Dalma etc.
- The tissue culture planting material is available with Kumar Biotech , Pune.

How and when do I prune roses ?

In the first year after planting light pruning is to be done. In the subsequent years the plants are pruned once a year in the month of June or October to coincide flowering with the festive season or Christmas / New Year’s day. The plants are pruned to 30 - 40cm ht from the ground level with 4-5 canes on each plant. Blitox paste to be applied to the cut surface immediately after pruning.

When and how do I plant roses ?

Roses are planted in pits filled with well rotten fym and top soil in the months of June to Aug –Sep.. Require full sunlight throughout the day. Red Loamy soils with pH of 5.5 – 6 is ideal.

Can we use sprinkler irrigation for flower crops?

Sprinkler irrigation is not necessary for open cultivation of flowers.  Over head sprinkler are used for misting in polyhouses, for propagation of cuttings in mist chamber.

Can we grow china aster as mixed crop with vegetables?


How long can we store china aster seeds?

Up to 6 months

Can Soundarya variety of crossandra be propagated through seeds?


Where can we get promising varieties of jasmine?
  • Promising varieties of jasmine can be obtained from Dept. of Hort. Tamil Nadu Agricultural University, Coimbatore.
  • Nursery men's  Co-operative Society Lalbagh IIHR, Bangalore .
Which are the rose varieties having long stems for open cultivation?

There are no rose varieties to obtain long stems under open cultivation.

Which are the promising and high yielding tall marigold varieties for commercial cultivation?

Pusa, Narngi Genda

Can we take up ratoon cultivation of chrysanthemum?

Yes, Chrysanthemum can be grown for ratoon crop.

Which are the flower crops suitable for polyhouse cultivation?

Crops suitable for polyhouse cultivation are rose, carnation, gerbera, orchids and anthurium.

Can we use gerbera suckers for multiplication?

Yes, Gerbera suckers can be used for multiplication.

Which kind of shadenet can we use for Anthurium cultivation?

80 percent

Can we grow carnation in open field?


Which kind of nitrogen has to be applied for gladiolus?

Nitrogen to be supplied through urea, Nitrate, fertilizers in gladiolus cultivation.

Which are the fusarium resistant varieties in gladiolus?

Cultivar 'Dhiraj' is resistant and cultivars 'Darshan', 'Kum kum' are moderately resistant to Fusarium wilt disease.

Which are the flowers suitable for inter cropping?

Cut flowers suitable for inter-cropping are China aster and Chrysanthemum.

Which are the cut flower varieties of chrysanthemum suitable for open cultivation?

Yellow Gold, Arka Ravi and Ravi Kiran

Which are the promising china aster varieties suitable for commercial cultivation and where can we get the seed material?

Commercial China aster varieties are Kamini, Poornima, Shashank and Violet Cushion. The seed can be obtained from IIHR, Bangalore.

Which are the cut foliage suitable for commercial cultivation?

Asparagus, Palm, Xanadu and Dracena. Sp.

What flower crops can be grown in dryland?

Bird of Paradise and Marigold can be grown in dryland.