A M O N G the mechanisms restricting the flow of genes between discrete populations of plants, unilateral incompatibility (UI) is unique in that one of the reciprocal crossing combinations succeeds whereas the other fails. The term unilateral incompatibility is generally restricted to a phenomenon thought to be closely related to self-incompatibility (SI), for it occurs in matings of self-ferti...

In August 2006, plant biologists gathered at the FASEB ‘Mechanisms in Plant Development’ meeting in Vermont, which was organized by Laurie Smith and Ueli Grossniklaus. A variety of plant developmental mechanisms were presented at this meeting and, although many talks focused on Arabidopsis thaliana as a primary model in which to study plant development, research in maize, tomato, Chlamydomonas ...

A field experiment was conducted to compare the effectiveness of microbial control agents and chemical pesticides when used on field tomatoes. Treatments included all combinations of chemical, biological or no control of either diseases or insect pests. Irrigation problems prevented uniform development of the crop in the field, and caused one experimental block to have significantly lower yield...

SOCIETY OF NEMATOLOGISTS 43 ANNUAL MEETING ESTES PARK, COLORADO 7–11 AUGUST 2004 CHARACTERIZATION OF ANTAGONISTIC RHIZOBACTERIA TO CONTROL MELOIDOGYNE JAVANICA ON TOMATO. Abadir, Seham K., A. E. Tawfik, and F. W. Raid. Plant Pathology Institute, Agriculture Research Center,

Tomato is sensitive to a number of environmental stresses, especially extreme temperature, drought, salinity and inadequate moisture stresses (Kalloo, 1993). In Bangladesh, lack of irrigation and drought resistant cultivars are the central problems for tomato cultivation. In the dry season with high temperature, flower abortion occurs and fruits drop frequently, which causes very poor yield of ...

A binomial sampling method for the potato aphid, Macrosiphum euphorbiae (Thomas), on processing tomato plants, Lycopersicon esculentum (Mill), is proposed. Relationships between mean number of M. euphorbiae per leaf and proportion of leaves infested [P(I)] with M. euphorbiae for both upper and interior leaves of the processing tomato varieties 'Alta' and 'Halley' are presented. A split-plot des...

The influence of the treatment with fungicides on physiological processes were observed in Lycopersicon esculentum Mill. plants cultivated climatic conditions Oltenia region.The researches performed August 23th 2021, both for treated Dithane M-45 (0,2%), four phases, at 7 days interval and also attacked by AlternariasolaniSorauer, which treatments have not been performed.In leaves pathogen it w...

The tomato Mi-1.2 gene confers resistance against both root-knot nematodes and the potato aphid. Plants are resistant to nematodes early in root development. However, plants as old as 4 weeks are susceptible to aphid infestation. We monitored Mi-1.2 expression at the transcriptional level in resistant (Mi/Mi) and susceptible (mi/mi) tomato cultivars by means of RT-PCR. Mi-1.2 transcripts accumu...

Selection of detectable numbers of Mi-virulent root-knot nematodes has necessitated a greater understanding of nematode responses to new sources of resistance. During the course of this research, we compared the reproduction of four geographically distinct Mi-virulent root-knot nematode isolates on three resistant accessions of Lycopersicon peruvianum. Each accession carried a different resista...