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Stem-end

Stem-end rot can be controlled by a combination of fungicide paste applied to the cut surface of the fruit and by observing sanitary practices with conveying equipment. Although epidemic upon occasions, this problem is now of little significance. [Pg.73]

Colombian stem-end rot, resulting from fungus invasion of cracked fruit stems and fruit peel in handling operations, however, is still of considerable importance. Some type of nonpoisonous fungicide dip is needed to control this problem. [Pg.74]

Fruit Decay. Finally in the field of diseases are the decays of fruit in transit. Much of the Brazilian fruit is exported, giving a long period from harvest to utilization and in Argentina a slow rail transport plus the use of uninsulated metal cars adds to the problem. Stem-end rot (Diaporthe citri Wolfe and Diplodia natalen-sis Pole-Evans) plus blue and green molds (Penicillium italicum, Wehmer, and P. digitatum, Sacc.) are rampant, and while the Dowicide A (sodium orthophenyl phe-nate)-Hexamine (hexamethylenetetramine) treatment worked out in Florida is satisfactory, import difficulties stand in the way of obtaining needed materials. [Pg.83]

Fig. 13 Hyperbranced graft architecture based on graft-on-graft technique, a Growing tree model (both stem and branch) b Growing hyperbranching model (controlled chain length) c Growing hyperbranching at stem end... Fig. 13 Hyperbranced graft architecture based on graft-on-graft technique, a Growing tree model (both stem and branch) b Growing hyperbranching model (controlled chain length) c Growing hyperbranching at stem end...
Figure 5.5 Distribution of mineral elements within potato tubers. Data show longitudinal profiles of elements from the distal (Segment 1) to the stem end (Segment 5) of tubers from Stirling plants (N. Subramanian, G. Ramsay, M. R. Broadley and P.J. White, unpublished data). Figure 5.5 Distribution of mineral elements within potato tubers. Data show longitudinal profiles of elements from the distal (Segment 1) to the stem end (Segment 5) of tubers from Stirling plants (N. Subramanian, G. Ramsay, M. R. Broadley and P.J. White, unpublished data).
Eldredge, E. P, Holmes, Z. A., Mosley, A. R., Shock, C. C., Stieber, T. D. (1996). Effects of transitory water stress on potato tuber stem-end reducing sugar and fry color. American Potato Journal, 73, 517-530. [Pg.367]

It is best if the branch is cut back to just below a node since nodes are the places from which new roots are most likely to develop. While it is not necessary to cut make the cut here, doing so has the advantage that there will be no stem material dangling in the water below the node. This is important as the cut stem end is more likely to start to rot than is a node. [Pg.37]

GE Brown, HS Lee. Interactions of ethylene with citrus stem-end rot caused by Diplodia natalensis. Phytopathology 83 1204-1208, 1993. [Pg.822]

For the bulk of the work, blue cellophane strips were used. These were secured to individual fruits as meridians at 60° spacings running from stem to navel. After irradiation, each tape was sampled at the stem end, equator, and navel end. Eighteen readings per fruit were sufficient to demonstrate good uniformity. A sample series of readings is shown in Table I. [Pg.140]

The capability of Citrus to translocate limonoids from the fruit tissues to the seeds was demonstrated by administering 1 x 10 cpm of methyl- "deacetylnomilinate to the stem end of detached calamondin fruits. After 16 hrs of incubation, 7,500 cpm of activity were translocated to the seeds, and over 90% of the total activity in the seed extract was recovered as the original substrate (8). These results show that limonoids present in citrus seeds are translocated through the fruit tissue. [Pg.71]

Exposure of citrus fruits to ethylene has been shown to increase the incidence of stem-end rot caused primarily by D natalensis (113, 124, 125, 126, 127). Higher than recommended ethylene concentrations (75, 106, 116, 128, 129) and temperature (116) and an increase in degreening duration (116, 125) caused significant increases in stem-end rot. Anthracnose, caused by . gloeosporioides, is a serious disease of specialty citrus hybrids such as Robinson, Lee, Nova, and Page (130, 131), when fruit are exposed to ethylene. Incidence was related directly to length of degreening (130), ethylene concentration (132,... [Pg.201]

This procedure requires 2 to 3 weeks during which time juice yield and citric acid increase (153). In an effort to speed up the process, ethephon or standard degreening practices have been used but these usually enhance decay, particularly stem-end rot (126, 148, 150, 153). Degreening was achieved with standard degreemng practices if mature fruit were treated with an effec-... [Pg.202]

Control of stem-end rots caused by A. citri, D. natalensis, and P. citri with postharvest applications of the growth regu-lators 2, 4-D and, occasionally, 2,4,5-T is attributed to preservation of the green button and prevention of abscission (106,... [Pg.204]

By keeping ethylene concentrations to less than 0.8 ul/1 of air, stem-end decay caused by a species of Fusarium, green mold, loss of orange flavor, and development of off-flavors were minimized. Other volatiles present with and without the ethylene absorber apparently had no effect on quality. Ethylene, produced in copious quantities by rots, enhances respiration and senescence of healthy fruit within the storage facility (281). The importance of ethylene removal has been illustrated also in recent storage studies of lemons in Australia (282, 283, 284, 285). [Pg.211]

The total number of berries with fruit rot symptoms and the number of berries with symptoms of anthracnose or stem end rot from the April 24 harvest time were significantly lower from plots treated with the fungicides Switch, Cabrio , CaptEvate , and Pristine than from those receiving no fungicide treatment (Table 2). The most prevalent diseases in the Louisiana field study were anthracnose caused... [Pg.11]

Fungicide Total Rots Anthracnose2 Stem end rot2 Plants Dead (%)3 Foliar disease4 ... [Pg.11]

Number of fruit with anthracnose fruit rot symptomn (Colletotrichum acutatum) or Stem-End Rot (Gnomonia comari). [Pg.11]

The anatomy of the tuber is shown diagrammatically in Figure 11.2. Parts that can be distinguished are the skin (periderm) with the lenticels, the eyes, the bud and stem ends, the cortex, the ring of vascular bundles, the perimedullary zone, and the pith with medullary rays which are homologous with the medulla of the stolon.7... [Pg.516]


See other pages where Stem-end is mentioned: [Pg.208]    [Pg.209]    [Pg.138]    [Pg.239]    [Pg.73]    [Pg.73]    [Pg.91]    [Pg.99]    [Pg.115]    [Pg.341]    [Pg.342]    [Pg.502]    [Pg.303]    [Pg.131]    [Pg.194]    [Pg.196]    [Pg.196]    [Pg.198]    [Pg.198]    [Pg.204]    [Pg.205]    [Pg.208]    [Pg.212]    [Pg.52]    [Pg.7]    [Pg.12]    [Pg.516]    [Pg.516]    [Pg.496]    [Pg.52]   
See also in sourсe #XX -- [ Pg.369 ]




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Stem end rot

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