Moriana et al. investigated the effect of water stress on ‘Kerman’ grafted onto three pistachio root stocks . All three root stocks showed dehydration leading to reduction in vegetative growth and number of leaves, while root weight was promoted. UCB1 was least affected by drought stress and P. atlantica also showed good tolerance. Drought stress…

The reasons for this are manifold and interconnected; however, most stem from two primary issues. First, many horticultural crops have been traditionally understudied because their lifecycle, genomic structure, or inability to regenerate via tissue culture, are not amenable to methods used in functional genomics. This leads directly to the second reason: many of the genes that…

To ensure results were not an artifact of curtailing men’s later potential reproductive lifespan, all tests were rerun, dropping men who had not yet reached their fifty-fifth birthday . The majority of the sample are ethnic Pimbwe, but a small percentage are Fipa, Rungwe, Konongo, or other related ethnicities represented in the Rukwa Valley; the few Sukuma…

Orange scions on sour orange appear to be most susceptible to tristeza, followed by mandarin scions. When tristeza infected the old Citrus Variety Collection at Riverside, which was on sour orange, most of the orange cultivars were in advanced stages of decline before the first mandarin combinations began to express symptoms.Young grapefruit trees on sour…

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…