Root Aphid
Mostrando 1-5 de 5 artigos, teses e dissertações.
-
1. Influencia da mecanizacao do arroz de sequeiro na infestacao e dano de Rhopalosiphum rufiabdominale (Sasaki, 1899) (Homoptera: Aphididae).
A infestacao e os danos causados pelo afideo-da-raiz, Rhopalosiphum rufiabdominale (Sasaki, 1899), foram estudados num experimento de mecanizacao de arroz de sequeiro com a cultivar Caiapo. Os tipos de semeadoras utilizados e os modos de preparo do solo apresentaram diferencas significativas nas porcentagens de plantas infestadas pelo afideo e de falhas na p
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
-
2. Desenvolvimento de mudas de tamarindeiro: tamanhos de recipiente, substratos, peso de sementes e profundidades de semeadura / Development of tamarind seedlings: recipient size, substrate, seed weight and sowing depth
This study expanded the knowledge on tamarind (Tamarindus indica L.) seedling production by analyzing the effects of different container sizes and vermiculite doses in a commercial substrate and seed size and different sowing depths in a nursery seedling production. The experiments were done at the experimental farm Água Limpa in the sector of Fruit Crops,
Publicado em: 2008
-
3. Life-history strategies affect aphid preference for yellowing leaves
According to the nutrient-translocation hypothesis, yellowing tree leaves are colonized by aphids at the end of the growing season owing to improved availability of nutrients in the phloem sap after chlorophyll degradation. We measured aphid densities on potted Betula pendula seedlings in a field site where a small proportion of foliage rapidly turned yellow
The Royal Society.
-
4. l-Ascorbic Acid Is Accumulated in Source Leaf Phloem and Transported to Sink Tissues in Plants1
l-Ascorbic acid (AsA) was found to be loaded into phloem of source leaves and transported to sink tissues. When l-[14C]AsA was applied to leaves of intact plants of three different species, autoradiographs and HPLC analysis demonstrated that AsA was accumulated into phloem and transported to root tips, shoots, and floral organs, but not to mature leaves. AsA
American Society of Plant Physiologists.
-
5. Downstream Divergence of the Ethylene Signaling Pathway for Harpin-Stimulated Arabidopsis Growth and Insect Defense1
Ethylene (ET) signal transduction may regulate plant growth and defense, depending on which components are recruited into the pathway in response to different stimuli. We report here that the ET pathway controls both insect resistance (IR) and plant growth enhancement (PGE) in Arabidopsis (Arabidopsis thaliana) plants responding to harpin, a protein produced
American Society of Plant Biologists.