Hydroponic Equipment

Growth reduction was 16 percent on the Troyer seedlings, 42 percent on the sour orange seedlings, 55 percent on the Cleopatra seedlings, 44 percent on the navel/Cleopatra combination, and 48 percent on the navel/sour combination. The final experiment consisted of seedlings of four root stock cultivars, namely sour orange, Cleopatra mandarin, Troyer citrange, and trifoliate orange,…

With respect to severity, the continuum between delicate and deep cutting is significant among participants. On the mild end of the continuum, there are reports of scratching without drawing blood. Even dangerously deep cutting may be unintentional and, in the words of one mother, an instance of “going overboard” rather than aimed at serious self-harm or…

They also point out some problems with some gametic seedlings of Marsh grapefruit and Washington navel on trifoliate. In Japan, Miyakawa and Miyakawa and Matsui report on a bud union abnormality of Satsuma on trifoliate orange. There is a swelling of the scion variety above the union, and bud union crease at the union . When inoculated into Valencia,…

The inter stock trees were smaller than the non-inter stocked trees and yielded slightly less fruit. Of considerable interest is the fact that when the Cleopatra was inter stocked to itself, inserting a 15-cm interstem at 15 cm, the trees had less yield and smaller canopies than any of the inter stock trees or the noninter stocked…

It is clearly a marked advantage to use a root stock variety that will reproduce the parent type as nearly true to type as possible by such propagation. Since the embryos developed by cross-fecundated egg cells are likely to be variable, owing to the commingling of genes of different parents, it is evident that the larger…

Pericentromeric heterochromatin in tomato contains a high frequency of repetitive DNA, primarily due to the presence of transposable elements. Repeated sequences prevent the placement of the unique oligonucleotide probes necessary for successful chromosome walking . The reference genome sequence of cultivated tomato may be helpful in overcoming this problem, because probes may be designed targeting nonrepetitive…

Using the EcoPOD lysimeter technology, intact soil monoliths can be retrieved from the field and studied under controlled conditions in the laboratory. The above ground portion is approximately 1.5 m tall and, therefore, allows the study of a number of different plants in soil with macro- and microorganisms in the context of environmental changes.EcoPODs allow precise conditioning…

It remains to be seen that similar results are achievable with soil grown plants or in the field where plants may be less limited for growth than in sand filled pots. In addition, competition from other bacteria may prevent colonization by endophytic diazotroph. Plant genetic contribution to this symbiosis is an important area of research leading…

The declaration represents the views of small scale food producers, landless rural workers, indigenous peoples and urban communities alike, affirming that “Agroecology is not a mere set of technologies or production practices” and that “Agroecology is political; it requires us to challenge and transform structures of power in society” . The declaration goes on to…