Genetics and the Improvement of Tropical Crops

Soil Science ◽  
1958 ◽  
Vol 86 (4) ◽  
pp. 227 ◽  
Author(s):  
Joseph Hutchinson
Keyword(s):  
Tropical Crops

scholarly journals Transpiration and stomatal resistance variations of perennial tropical crops under soil water availability conditions and water deficit

2007 ◽  
Vol 50 (2) ◽  
pp. 225-230 ◽  
Author(s):  
José Ozinaldo Alves de Sena ◽  
Humberto Actis Zaidan ◽  
Paulo Roberto de Camargo e Castro
Keyword(s):  
Water Availability ◽  
Rainy Season ◽  
Rubber Tree ◽  
Psidium Guajava ◽  
Stomatal Resistance ◽  
Paullinia Cupana ◽  
Tropical Crops ◽  
Water Transpiration ◽  
Coffea Arabica L ◽  
Dry And Rainy Seasons

During the dry and rainy seasons, determinations of stomatal resistance and transpiration of five tropical crops were carried out: guarana (Paullinia cupana Kunth), coffee (Coffea arabica L.), cashew (Anacardium occidentale L.), guava (Psidium guajava L.) and rubber (Hevea brasiliensis Muell. - Arg.) trees. Experimental design was done at randomized complete blocks with five replications. During the dry season there was a decrease in values of stomatal resistance in the following order: guarana > coffee> cashew> guava > rubber, with values from 2.5 to 30.0 s.cm-1. During the rainy season the stomatal resistance values varied from 1.5 to 3.0 s.cm-1. The guarana and coffee crops showed higher resistance to water transpiration when compared to other crops. During the rainy season, the rubber tree continued to present lower stomatal resistance and, consequently, higher transpiration.

scholarly journals Diseases, Pests and Weeds in Tropical Crops

1980 ◽  
Vol 26 (1) ◽  
pp. 33-33
Author(s):  
R. N. Williams
Keyword(s):  
Tropical Crops

scholarly journals Mycotoxin Contamination of Beverages Obtained from Tropical Crops

Beverages ◽  
2018 ◽  
Vol 4 (4) ◽  
pp. 83 ◽  
Author(s):  
Fabio Granados-Chinchilla ◽  
Mauricio Redondo-Solano ◽  
Daniela Jaikel-Víquez
Keyword(s):  
Health Effects ◽  
Epidemiological Data ◽  
Economic Effects ◽  
Mycotoxin Contamination ◽  
Beverage Industry ◽  
Tropical Crops ◽  
Methodological Approaches

This review is mainly centered on beverages obtained from tropical crops, including tea, nut milk, coffee, cocoa, and those prepared from fruits. After considering the epidemiological data found on the matrices above, the focus was given to recent methodological approaches to assess the most relevant mycotoxins. Aspects such as singularities among the mycotoxin and the beverage in which their were found, and the economic effects and repercussions that the mycotoxin-tainted ingredients have on the beverage industry were pointed out. Finally, the burden of their consumption through beverages, including risk and health effects on humans, was addressed as well.

Fungus diseases of tropical crops

1983 ◽  
Vol 7 ◽  
pp. 77-79
Author(s):  
Helge Hellqvist
Keyword(s):  
Tropical Crops

Tropical Crops

Kew Bulletin ◽  
1970 ◽  
Vol 24 (3) ◽  
pp. 569
Author(s):  
F. N. Howes ◽  
J. W. Pursglove
Keyword(s):  
Tropical Crops

scholarly journals A Four-Partner Plant–Virus Interaction: Enemies Can Also Come from Within

2010 ◽  
Vol 23 (11) ◽  
pp. 1394-1402 ◽  
Author(s):  
Marie-Line Iskra-Caruana ◽  
Franc-Christophe Baurens ◽  
Philippe Gayral ◽  
Matthieu Chabannes
Keyword(s):  
Viral Genome ◽  
Plant Viruses ◽  
Plant Genome ◽  
Interspecific Crosses ◽  
Streak Virus ◽  
Alternative Source ◽  
Remarkable Feature ◽  
Tropical Crops ◽  
Causative Agents ◽  
Partner Interaction

Plant viruses are disseminated by either vertical (vegetative multiplication or sexual reproduction) or horizontal (vector-mediated) propagation. Plant pararetroviruses—members of the Caulimoviridae family—have developed an alternative strategy for vertical propagation via integration within the host plant genome, although integration is not required for viral replication. Integrated endogenous pararetrovirus (EPRV) sequences have undergone extensive viral genome rearrangements and contain more than one copy of the viral genome. Furthermore, EPRV can become infectious upon spontaneous escape of active virus following stresses such as wounding, tissue culture, or interspecific crosses. Such infectious EPRV are of great importance, not only in terms of their ability to precipitate epidemic outbreaks but also because of their effect on breeding of numerous plant genomes in temperate and tropical crops. This is especially true for banana, a crop susceptible to banana streak viruses, the causative agents of banana streak disease. Thus, the classical three-component banana–Banana streak virus (BSV)–mealybug pathosystem can be expanded to include endogenous BSV as an alternative source of active virions. The BSV-banana pathosystem is one of only three pathosystems known to date to harbor this remarkable feature, and the present review focuses exclusively on it to illustrate this four-partner interaction.

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