Search Results - "Keeping, Malcolm G."

Uptake of Silicon by Sugarcane from Applied Sources May Not Reflect Plant-Available Soil Silicon and Total Silicon Content of Sources by Keeping, Malcolm G

“…Soils of the tropics and sub-tropics are typically acid and depleted of soluble sources of silicon (Si) due to weathering and leaching associated with high…”
Get full text

Does green cane harvesting and residue retention improve silicon uptake in ratoon crops of sugarcane? by Keeping, Malcolm G., Ramburan, Sanesh, Nxumalo, Nkosinathi

“…Phytogenic silicon (PhSi) accumulated in soils during plant decomposition is an important silicon (Si) source for plants in natural and agricultural…”
Get full text

Silicon in Sugarcane: Availability in Soil, Fertilization, and Uptake by Camargo, Mônica Sartori, Keeping, Malcolm G.

“…Purpose Silicon (Si) is the predominant element in soils, but is usually sparingly soluble and limited in its availability for plant uptake. Although Si is not…”
Get full text

Soil silicon amendments increase resistance of sugarcane to stalk borer Eldana saccharina Walker (Lepidoptera: Pyralidae) under field conditions by Keeping, Malcolm G., Meyer, Jan H., Sewpersad, Chandani

“…Background and aims Soil amendment with silicon (Si) can significantly increase resistance of susceptible sugarcane cultivars grown in pots to stalk borer…”
Get full text

Liming an acid soil treated with diverse silicon sources: Effects on silicon uptake by sugarcane (Saccharum spp. hybrids) by Keeping, Malcolm G., Miles, Neil, Rutherford, R. Stuart

“…Highly weathered soils are typically acid, with low plant-available silicon (Si), and may also be high in soluble aluminum (Al). We tested whether pre-liming…”
Get full text

Epidermal silicon in sugarcane: Cultivar differences and role in resistance to sugarcane borer Eldana saccharina by Keeping, Malcolm G., Kvedaras, Olivia L., Bruton, Anthony G.

“…Silicon (Si) application can significantly increase resistance of plants to insect herbivory. In sugarcane, Si-mediated resistance to the lepidopteran stem…”
Get full text

Silicon reduces impact of plant nitrogen in promoting stalk borer (Eldana saccharina) but not sugarcane thrips (Fulmekiola serrata) infestations in sugarcane by Keeping, Malcolm G, Miles, Neil, Sewpersad, Chandini

“…The stalk borer Eldana saccharina Walker (Lepidoptera: Pyralidae) is a major limiting factor in South African sugarcane production, while yield is also reduced…”
Get full text

Silicon as a plant defence against insect herbivory: response to Massey, Ennos and Hartley by Keeping, Malcolm G., Kvedaras, Olivia L.

“…1. Silicon (Si) has received increased attention as a nutrient capable of providing some measure of defence for plants against fungal pathogens, and insect and…”
Get full text

Influence of plant silicon and sugarcane cultivar on mandibular wear in the stalk borer Eldana saccharina by Kvedaras, Olivia L, Byrne, Marcus J, Coombes, Neil E, Keeping, Malcolm G

“…1 Silicon can increase the resistance of plants to attack by herbivorous insects. The present study aimed to determine the effect of silicon and cultivar on…”
Get full text

Provision of nitrogen as ammonium rather than nitrate increases silicon uptake in sugarcane by Keeping, Malcolm G., Rutherford, R. Stuart, Sewpersad, C., Miles, Neil

“…Silicon's role in ameliorating a range of biotic and abiotic plant stresses is beyond doubt, yet means to maximise its uptake via the roots from applied…”
Get full text

Social behavior and brood decline in reproductive-phase colonies ofBelonogaster petiolata (Degeer) (Hymenoptera: Vespidae) by Keeping, Malcolm G.

“…Colonies ofBelonogaster petiolata in Gauteng (South Africa) produced reproductive offspring (gynes and males) in late January and early February of each…”
Get full text

Social organization and division of labour in colonies of the polistine wasp, Belonogaster petiolata by Keeping, M.G

“…Foundresses in pre-emergence and post-emergence nests of Belonogaster petiolata were organized into linear dominance hierarchies according to their level of…”
Get full text

Larval performance of the pyralid borer Eldana saccharina Walker and stalk damage in sugarcane: Influence of plant silicon, cultivar and feeding site by Kvedaras, O.L, Keeping, M.G, Goebel, F.R, Byrne, M.J

“…Applied silicon (Si) can improve resistance of plants to insect attack. We investigated the interactions between soil applied Si, sugarcane cultivar, and three…”
Get full text

Epidermal silicon in sugarcane : Cultivar differences and role in resistance to sugarcane borer Eldana saccharina by KEEPING, Malcolm G, KVEDARAS, Olivia L, BRUTON, Anthony G

Get full text

Venom spraying inParachartergus colobopterus: A novel defensive behavior in a social wasp (Hymenoptera: Vespidae) by Jeanne, Robert L., Keeping, Malcolm G.

Get full text

Rubbing behavior and morphology of van der Vecht's gland inBelonogaster petiolata (Hymenoptera: Vespidae) by Keeping, Malcolm G.

Get full text

Social behavior and brood decline in reproductive-phase colonies of Belonogaster petiolata (Degeer) (Hymenoptera: Vespidae) by KEEPING, M. G

“…Colonies of Belonogaster petiolata in Gauteng (South Africa) produced reproductive offspring (gynes and males) in late January and early February of each…”
Get full text

Rubbing behavior and morphology of van der Vecht's gland in Belonogaster petiolata (Hymenoptera: Vespidae) by KEEPING, M. G

“…Females of the social wasp, Belonogaster petiolata , rub the secretion of van der Vecht's gland, located on their terminal gastral sternite, onto the nest…”
Get full text

Venom spraying in Parachartergus colobopterus: a novel defensive behavior in a social wasp (Hymenoptera: Vespidae) by Jeanne, R.L. (University of Wisconsin, Madison, WI.), Keeping, M.G

“…Colonies of Parachartergus colobopterus do not defend against vertebrates by attacking and stinging. Instead, defending workers bend the gaster forward and…”
Get full text

Foraging in social wasps: Agelaia lacks recruitment to food (Hymenoptera: Vespidae) by Jeanne, R.L. (University of Wisconsin, Madison, WI.), Hunt, J.H, Keeping, M.G

“…Experimental tests on Agelaia multipicta in Venezuela and A. hamiltoni in Peru failed to demonstrate recruitment of nestmates to carrion. Foraging ranges of…”
Get full text