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Plant physiology and crop productivity The functioning of the rice plant during different growth stages is analyzed at the individual plant level and as a plant community (crop) and then related to physiological and growth processes that determine yields. In the vegetative phase, processes analyz...

Se analiza el funcionamiento de la planta de arroz individualmente y el de una comunidad de plantas (el cultivo), durante las diferentes etapas del crecimiento de la planta, y se relacionan los procesos fisiológicos y de crecimiento con el resultado final: el rendimiento. En la fase vegetativa se...


Riveros, GuillermoRodríguez, Nuvia Stella[La fisiología de la planta y la productividad del cultivo]La fisiología de la planta y la productividad del cultivo

Desde 1972 se han introducido mas de 700 accesiones de gramineas y leguminosas tropicales para evaluacion y seleccion en Malaysia. Sin embargo, se ha seleccionado para cultivo una gran variedad de gramineas pero pocas leguminosas. Aunque el clima calido y humedo favorece el crecimiento vegetativo...


Chen, C.P.Ahmad Tajuddin, Z.[Situation and outlook of forage research and production in Peninsular Malaysia]Situation and outlook of forage research and production in Peninsular Malaysia

Chemical analysis and missing element trials with Sorghum vulgare L. showed that three Panamanian soils, representative of three great soil groups, were deficient in both nitrogen (N) and phosphorus (P). When a greenhouse trial was undertaken to test the response of Cajanus cajan to rhizobial ino...


Hernández, B.C.Méndez-Lay, J.M.Focht, D.D.[Nitrogen and phosphorus requirements for the growth and nodulation of Cajanus cajan in Panamanian soils]Nitrogen and phosphorus requirements for the growth and nodulation of Cajanus cajan in Panamanian soils
Hurtado V., Miguel A.Sieverding, Ewald[Las micorrizas, solución para la producción de plántulas forestales]Las micorrizas, solución para la producción de plántulas forestales
Rivera, M.Amézquita Collazos, Edgar[Evaluación del modelo de simulacion de crecimiento CERES aplicado a la variedad de maíz (Zea mays L.) Sikuani V-110 en suelos ácidos de sabanas]Evaluación del modelo de simulacion de crecimiento CERES aplicado a la variedad de maíz (Zea mays L.) Sikuani V-110 en suelos ácidos de sabanas

Inoculum of the VA mycorrhizal fungusGlomus manihotis was added to an Oxisol containing only a moderate inoculum potential of indigenous VA mycorrhizal fungi. Its effect on growth and P uptake of two pasture plant species was investigated in pot experiments. This effect was studied at a range of ...


Salinas, JGSanz Scovino, José IgnacioSieverding, E[Importance of VA mycorrhizae for phosphorus supply to pasture plants in tropical Oxisols]Importance of VA mycorrhizae for phosphorus supply to pasture plants in tropical Oxisols

Two experiments were conducted in the neotropical savannas of Carimagua, Colombia to test the hypothesis that Brahman females subjected to sustained grazing undernutrition as heifers can attain high reproductive performance as mature cows if allowed to make compensatory gains. In Experiment 1, we...


Vera, Raúl R.Ramírez, C.A.Velásquez, N.[Growth patterns and reproductive performance of grazing Brahman cows in a tropical environment]Growth patterns and reproductive performance of grazing Brahman cows in a tropical environment
Suarez-Vasquez, SenenMachado, L.F.Pizarro, Esteban A.[Seleccion de gramineas y leguminosas forrajeras en la zona cafetera de Supia, Colombia]Seleccion de gramineas y leguminosas forrajeras en la zona cafetera de Supia, Colombia

Plant root development can be largely affected through the association of roots with plant growth-promoting rhizobacteria (PGPR). However, little is known about the identity of plant genes enabling such PGPR-plant root associations. Differences in the responsiveness to PGPR among cultivars sugges...


Remans, RBeebe, Stephen E.Blair, Matthew W.Manrique, GTovar Luque, ERao, Idupulapati M.Croonenborghs, ATorres Gutierrez, REl-Howeity, MMichiels, JVanderleyden, J[Physiological and genetic analysis of root responsiveness to auxin-producing plant growth-promoting bacteria in common bean (Phaseolus vulgaris L.)]Physiological and genetic analysis of root responsiveness to auxin-producing plant growth-promoting bacteria in common bean (Phaseolus vulgaris L.)

The effects of size of terminal stem cuttings (2-, 3-, or 4-leaf) and of auxin treatment on percent rooting, root number and root length of six Stylosanthes guianensis accessions were evaluated in a single, factorial experiment. Overall, 66% of cuttings rooted within ten days. Accessions differ...


Miles, John W.[Rapid vegetative propagation of Stylosanthes guianensis]Rapid vegetative propagation of Stylosanthes guianensis

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