Totipotent Suspensions as a Means of Multiplication

Krikorian, A. D.; Kann, R. P.; O'Connor, Stefania A.; Fitter, Mindy S.

doi:10.1007/978-94-009-4444-2_5

Cited by 7 publications

(5 citation statements)

References 5 publications

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“…Roots from mature oil palms (Purvis, 1956;Ruer, 1968), while requiring some attention to obtain them clean (Krikorian and Kann, 1986), can provide responsive explants; it should be a logical extension to evaluate the same from mature coconut and date (Zaid and Tisserat, 1983).…”

Section: Objectivesmentioning

confidence: 99%

“…At Stony Brook, such cultures have been obtained in oil palm but the practical implications for clonal multiplication have not so far been addressed (Krikorian and Kann, 1986).…”

Section: Objectivesmentioning

confidence: 99%

“…There is extensive summarised literature on palms now available, which gives details of and guidance on what has been done. This includes methods for inducing cultures that are capable of yielding somatic embryos (Kovoor, 1981;Reynolds, 1982;Blake, 1983;Paranjothy, 1982Paranjothy, , 1984Krikorian and Kann, 1986;Tisserat, 1981Tisserat, , 1983Tisserat, , 1984Tisserat, a,b,c, 1987. Much of this literature has, however, major flaws.…”

Section: Objectivesmentioning

confidence: 99%

“…Blackening or darkening of explants due to phenolics (Ibrahim, 1987) can be dealt with (Poulain et aI., 1979), or is not necessarily a problem (Krikorian and Kann, 1986;Compton and Preece, 1988;Krikorian, 1988 and references cited therein on how to deal with darkening). Temperature considerations for incubating cultures should not be overlooked (Mason, 1925 for date palm; for LellCae/la).…”

Section: Lessons Learnedmentioning

confidence: 99%

“…are not well understood. The precocious flowering in vitro of oil palm (Krikorian and Kann, 1986) certainly indicated some important physiological changes (Scorza, 1982). Some of the changes in growth substance requirement or selected-for traits or characteristics in culture are heritable and can give rise to cell populations with substantial stability for these traits (White, 1949).…”

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confidence: 99%

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Applications of Biotechnology in Forestry and Horticulture

Dhawan¹

1990

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Land is the most fundamental resource of a country and as a result of the high rate of population growth in India, the pressure to produce more food, fodder, timber and fuelwood from the available land is intense. Land use, therefore, needs judicious planning. India has about 130 Mha of wastelands. Wastelands are defined as lands that are degraded and are lying unutilised due to constraints such as salinity, alkalinity, waterlogging, wind and water erosion, etc. Since wastelands are degraded and unsuitable for agriculture, they can be utilised to meet the growing demand for fuelwood, fodder, small timber and industrial wood. Not only do we have to reclaim the wastelands but we should also try and protect our forest cover which is being depleted at the rate of 1.3 Mha per year. Efforts are also required to step up the existing per hectare yield of 0.2 m 3 to 2-3 m 3 • The need of the hour is a quantum jump in existing afforestation targets. The plan is to afforest wastelands at a rate of 5 Mha per annum. Such large-scale plantations will demand a large amount of planting material (seeds or seedlings) and in order to achieve higher yields, it is important that 4 Ram achan dran these planting materials are of good quality. This means a high yielding plant which is also resistant to different diseases and pests. Such plants can be obtained by conventional methods of tree breeding and non-conventional methods of genetic engineering and somatic hybridisation. Unlike annual crops, the breeding behavior of trees is complex and their life-cycle long. Therefore, it takes many years to produce a variety with desirable traits. However, the development of modern non-conventional methods of genetic engineering, tissue culture and somatic hybridisation has offered new ways to enhance forest productivity more rapidly. By these methods, it has become possible to develop such varieties of ornamental and crop plants, with many desirable traits such as fast growth, high yield, disease resistance, herbicide and stress tolerance, etc. in a much shorter time than that taken by the conventional methods. However, this quick, non-conventional methodology of producing plants is very expensive. Since both the methods have their own advantages and disadvantages, it will be prudent to combine the conventional methods and the new methods of biotechnology to increase productivity, both qualitatively and quantitatively, in order to achieve the desired goals. CHOICE OF TREESForests constitute the base for agriculture, animal husbandry, industrial development and, thus, all-round development. A dense forest cover is also required for a healthy environment, as deforestation leads to environmental degradation, soil erosion, recurrent floods, droughts and desertification. India's forest area is about 64.20 Mha which constitutes about 19.52 percent of the total geographic area of the country (National Natural Resource Monitoring System, 1987, of the Department of Space, Government of India). With less than 2 percent of the world's forest area, we are ...

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Section: Objectivesmentioning

confidence: 99%

“…At Stony Brook, such cultures have been obtained in oil palm but the practical implications for clonal multiplication have not so far been addressed (Krikorian and Kann, 1986).…”

Section: Objectivesmentioning

confidence: 99%