tuberose cultivars propagation
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Tuberose cultivars propagation 1
Natural Resources Management
Diversification of Horticulture 3
Service reservoir for 4microirrigation
Effective utilization of waterways 6
Juvenile fish excluder-cum- 7shrimp sorting device
Indian Institute of Natural Resins 8and Gums
Integrated farming of 12seaweed and shrimp
Dhanauri Maize Sheller 13developed
CHM 7: an early-maturing 16mango clone
Enhancing production of 18medicinal mushroom Shiitake
PCR-based Molecular 19Diagnosis of TransgenicPlanting Material
Impact of Technology
Tomato farming in farmers' 23field school
Quantitative techniques for 23Agricultural Policy Analysis
The Last Page 24
Volume 14 No. 2
Tuberose cultivars propagation
IARI, New Delhi. Tuberose MildMosaic Virus has been recognizedas the major problem in tuberoseplant, Polianthes tuberosa. Unlike
other bulbous flower crops, Narcissus,Lilium and tulip, for which in vitropropagation techniques are perfected,tuberose does not have enoughtulip, studies on its regenerationthrough tissue culture. Therefore,in-vitro shoot multiplication, rooting
and acclimatization protocolswere standardized for two elitetubersoe cultivars using differentexplants.
Pre-treatment of stem scales andaxillary buds with carbendazim 0.1%,mancozeb 0.1% and 8-HQC 200 mg/litre for 4hr gave minimum culturecontamination (10.86%) and (17.5%).Minimum contaminated cultures were
Indian Council of Agricultural ResearchKrishi Bhavan, New Delhi 110 001, India
Tuberose cultivars used for Prajwal
2 ICAR NEWS
observed in cv. Prajwal (8.3%) whenit was pre-treated with carbendazim0.1%, mancozeb 0.1% and 8-HQC200 mg/litre for 4hr, followed by cv.Vaibhav (13.2%).
With respect to explants surfacesterilization, stem scales and axillarybud showed minimum contaminationwith treatment HgCl
2 0.1% followed
by 0.1% NaOCl for 8 min. Cultivarsshowed significant difference withsurface sterilization also.
Shoot multiplication, rooting andacclimatization
Multiple shoot formation is the mostcrucial phase in large scalemultiplication of plants through tissueculture. Between two explants, stemscale and axillary bud, shootmultiplication was higher in stemscale in both the cultivars. BasalMurashige and Skoog's (MS) mediumsupplemented with 4 mg/litre BAP and4mg/litre BAP + 0.2 mg/litre IAA waseffective for shoot multiplication forboth explants and cultivars.
Rooting of shoots under in vitro isa time consuming and expensiveprocess in many recalcitrant species.In this study, maximum rootingand earliest root induction wasobserved in cv. Prajwal with halfstrength MS medium + 1 mg/litre IBA
(which was significant) followed bycv. Vaibhav.
Jam bottle with polypropylene capshowed maximum survival (93.3%)which was nonsignificantly followedby pots (90.0%); both were used ashardening strategies.
Both the cultivars (Prajwal andVaibhav) differed in their laboratoryresponse; Single type cv. Prajwalexhibiting higher regenerationand multiplication than Double
type cv. Vaibhav.
Drs Jyothi R1., A.K. Singh2 and KrishanPal Singh3 1,3Division of Floriculture and
Landscaping, 2Division of Fruits andHorticultural Technology
e mail: email@example.com
Grow brinjals withoutinsecticides in
net-housesIIHR, Bangalore. Promising
technology related to brinjalwas developed at the IndianInstitute of Horticultural Research,Hessaraghatta.
Brinjal shoot and fruit borerLeucoides orbonalis has becomeextremely difficult to control usingtraditional insecticides. A newmolecule, E2Y45 20 SC at 30 g ai/hawas effective against thepest.
Growing elite, oblong, large- fruitedvarieties of brinjal without insecticidesuse inside low-cost net house showed0 % infestation by Leucoides orbonalis.This indicates possibility of raisingeggplant without pesticides. Besides,there was no gall midge infestation andleafhopper infestation was reducedunder nethouse conditions.
Dr G S R Murti, Director, IIHRe mail: firstname.lastname@example.org
Bio-engineering for protecting river banks
CSWCRTI, Dehra Dun. Seasonal
rivers (torrents) cause a huge damage
to life and property due to flash floods
during monsoon season in Shiwaliks
and foothills of outer Himalayas.
Cost- effective bio-engineering
structures (spurs, protection walls and
embankments) have been developed
and locally adaptive flow-resistant
vegetative species identified for
training river flow, bank erosion
control and protection of agricultural
land and other properties along the
banks. The technology is being
extended to the development
departments. Recently State Forest
Department, Uttarakhand, under the
technical guidance of this Institute
undertook a project on Song river near
Dehra Dun (about 2.2 km stretch) that
was trained through construction of
93 spurs. The performance of the
structures was found very satisfactory
and other state agencies are also
approaching the Institute for similar
Dr V N Sharda, Director, CSWCRTIe mail: email@example.com
Growth regulator effect on shootmultiplication tuberose
APRILJUNE 2008 3
Diversification of Horticulture
VPKAS, Almora. The VPKAS hasinitiated a project under HorticultureTechnology Mission (Mini Mission I) in Bhagartola (inhibited by 32families having 0.4 ha average land)to improves their livelihood security
by diversifying farming system withvegetables and fruits in sustainablemanner. The emphasis was laid oncrop diversification to enhance farmincome as well as to increasefoodgrains production in the village.The activities include major farmingcomponents comprising, vegetables,fruits, cereal and pulses, protectedcultivation, fisheries and waterharvesting. Development of waterresources by harvesting surface runoffand perennial hill streams in LDPE-lined polytanks and protectedcultivation of off-season vegetablesutilizing harvested water helped intransforming economy of Bhagartola,where 26 low-cost poly- tanks wereconstructed with partnership offarmers. These tanks provide >12lakh litres water available at 10 daysinterval.
With the available irrigationfacilities, diversification of thetraditional farming incorporating
vegetable crops was possible. Theclimatic peculiarity of the area providesan opportunity for off-seasonvegetables cultivation. This nicheadvantage is being fully exploited bycultivation of tomato, Frenchbean,cauliflower, cabbage, and squash.Cultivation of off-season vegetablesresulted in a net returns of Rs 10,000 to12,000 per year from each polyhouseof 100 m2 size. The next objective ofvegetables cultivation was to enhancetheir productivity as well as qualitywith assured and timely production.Therefore, greenhouses using low- costlocally available structural materialand covered with UV- stabilizedtransparent plastic film wereintroduced. This activity was carriedout on a participatory basis.
The production of vegetablesincreased by >300% with introductionof these greenhouses. Fifty suchgreenhouses of 80 m2 average size havebeen constructed in the village. Theaverage gross income per unit is aroundRs 23,000. The earning of whole villagefrom protected cultivation was Rs 2.10lakh in 2006-07 and Rs 3.84 lakh in2007-08.
Emphasis was also given onplantation of superior cultivars of
The area that could not come undervegetables was covered with improvedvarieties of field crops that led to 35%higher productivity. Livestock is alsoan integral part of hill farming systemand scarcity of fodder in hills is wellknown. To alleviate this problemplanting of hybrid napier grass andother multipurpose trees was done.Fish cultivation is also being taken upin polytanks, which is providing anadditional income of Rs 6,000 perunit.
As a result of the technologicalinterventions by the VPKAS, Almora,the land-use pattern of the villagehas changed and area undervegetables and fruits have increasedby 7% and 3% respectively.Thisdiversification resulted in a significantincrease in farmers' income.
Dr H S Gupta,Director, VPKAS
e mail: firstname.lastname@example.org
The agro-horti system of drumstick+ greengram fennel has given netreturns of Rs 29,240/ha, whereas,lowest net rerturns of Rs 9,932/ha
was realized from tobacco crop. Theagro-horti system is 2.95 times moreremunerative than planting of tobaccocrop. It also reduces irrigation water
requirement of the region by 70%.
Dr V N Sharda, Director, CSWCRTIe mail: email@example.com
suitable fruit crops (peach, plum,apricot, kiwifruit and citrus) forproviding sustainability to farmincome. Around 6,000 saplings ofthese fruit plants were planted withan average survival of 62%.
NATURAL RESOURCE MANAGEMENT
4 ICAR NEWS
NATURAL RESOURCE MANAGEMENT
CIPHET, Abohar. Canal commandareas in arid and semi-arid regionsof India are facing acute shortage ofirrigation water due to huge demandof water for other non-agriculturalsectors. Since underground water isbrackish in nature and water supplythrough canal is not regular in theseregions due to one or other reason,water scarcity is becoming a seriousproblem to farmers.
A well-planned service reservoir(pond) is a valuable asset, whichprovides water for agriculturaloperations at minimum cost andconvenience.
Construction of service reservoir(water-storage