Catalog of Genera, Species, and Subordinate Taxa in the Orange Subfamily Aurantioideae (Rutaceae) PDF Download
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Author: J. B. Carpenter
Publisher:
ISBN:
Category : Aurantioideae
Languages : en
Pages : 188
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Author: J. B. Carpenter
Publisher:
ISBN:
Category : Aurantioideae
Languages : en
Pages : 188
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1320
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Author: G. Kunkel
Publisher: Springer Science & Business Media
ISBN: 9400999895
Category : Science
Languages : en
Pages : 343
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Book Description
In 1969 volume I of 'Arboles Ex6ticos' appeared in Las Palmas de Gran Canaria, published in Spanish by the Island Council (Cabildo Insular). Volume II was to have dealt with a further 100 or so Dicotyledons, and volume III to have closed the cycle with Gymnosperms and the tree-like Monocotyledons. Neither of the latter having been published it was suggested that a totally revised and enlarged version of the first book be prepared for Dr. W. Junk, Publishers, The Hague. We are most obliged to Mr. S. P. Bakker and the Board of Directors for their interest in the present work, hoping that it will fill a gap and help both residents and visitors to get to know the amazingly rich exotic flora that is to be encountered in Mediterranean and Canarian parks and gardens. A second volume is in preparation and will concentrate on the bushes and shrubby trees left out in this one. In Flowering Trees in Subtropical Gardens special attention is given to species found in Canary gardens. As, however, most trees described are widely distributed in other regions with a similar Mediterranean climate, it is hoped that this guide may be of use in gardens of the subtropics in general. Several of the species selected here are little known in gardens, hardly ever found illustrated in current reference books and have therefore been included for interest's sake.
Author: Y. P. S. Bajaj
Publisher: Springer Science & Business Media
ISBN: 3662030969
Category : Technology & Engineering
Languages : en
Pages : 526
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The germ plasm of numerous plant species, especially those of forest trees, some agricultural crops, and medicinal plants, is endangered and threatened with extinction. This depletion of germplasm pools and the shrinkage of naturally occurring genetic resources have caused international concern. Conventionally, the germplasm of plants is conserved through seeds, tubers, roots, corms, rhizomes, bulbs, cuttings, etc. However, the germ plasm of a number of trees and plantation crops (such as coconut, cocao, coffee, oil palm, rubber, mango, horse chestnut, etc. ) cannot be preserved since their seed are short-lived (recalcitrant). Likewise, germplasm of vegetatively propagated crops (such as potato and cassava) cannot be stored on a long term basis and has to be grown and multiplied periodically in nurseries and fields. The plants are thus exposed to unpredictable weather conditions and diseases, with the result that instances are known where entire genetic stocks are lost. Therefore, unconventional methods are being developed for the storage and international exchange of germplasm. For this purpose in vitro cultures have been employed, but they can only enable short-to medium term preservation; moreover, cell cultures upon repeated subculture undergo genetic erosion. In view of the recent developments in the in vitro induction of genetic variability through somaclonal variation, somatic hybridization, recombinant DNA technology, etc. , new methods need to be employed for the storage of desirable cultures. In this regard freeze preservation of cells in liquid nitrogen (-196 0q, like that of semen, enables long-term storage, theoretically, for an indefinite period of time.
Author: Catherine Macy Grieve
Publisher:
ISBN:
Category : Aurantioideae
Languages : en
Pages : 300
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Author: Iqrar Ahmad Khan
Publisher: CABI
ISBN: 0851990193
Category : Science
Languages : en
Pages : 384
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This book is intended to provide consolidated information on citrus breeding in the era of biotechnology, which is likely to hasten the pace of variety development aimed at resolving the problems faced by grove owners growing currently available cultivars. The subjects covered are focused on citrus while providing information equally useful to the breeders of other tree crops. It will also help students of genetic and breeding identify appropriate applications of biotechnology in citrus breeding. While providing information on future avenues, it also reviews the past progress and achievements ensuring continuity of the subject. Several chapters include protocols for novel techniques that should facilitate their broader application by citrus breeders.
Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 260
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Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 482
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