+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Varietal differences in the susceptibility to pointed fruit malformation in tomatoes Histological studies of the ovaries



Varietal differences in the susceptibility to pointed fruit malformation in tomatoes Histological studies of the ovaries



Scientia Horticulturae 77(3-4): 145-154



Differences were found among three tomato cultivars (cvs.) in their susceptibility to pointed-fruit malformation. Pointed fruits are characterized by a conical, rather than a round shape. This type of fruit malformation is often found in winter-grown plants and is due to an uneven development of the locules. Transverse cross-sections of the fruit revealed that one or more of the locules had not developed, forming a flattened side, while the other side of the fruit was round (normal) in shape, because of the presence of developed placenta(s), with seeds and jelly filling their cavity(ies). Histological examination of the ovaries showed that under high night temperatures all the locules, of all the examined cvs., were normal and contained placentas with attached ovules. Ovaries that developed under lower night temperatures contained deformed locules: in the less severe cases the placenta was retarded, with fewer attached ovules than normal; in the most severe ones the locules were severely deformed and the placentas and ovules were absent. The number of deformed ovules per fruit and the degree of deformation were cultivar- and night temperature-dependent. Artificial pollination of the affected ovaries and exogenous auxin application did not improve the fruit shape. It is, therefore, concluded that the absence of placentas, seeds and jelly from one or more locules brings about the formation of a malformed, pointed (lop-sided) fruit.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 034189617

Download citation: RISBibTeXText

DOI: 10.1016/s0304-4238(98)00170-8


Related references

Studies on cracking in tomato fruits. II. Varietal differences in susceptibility to fruit cracking.. J. Jap. Soc. hort. Sci 30: 9-14. bibl. 18, 1961

Studies on the varietal suitability of apricots for canning. I. Varietal differences in the citric and malic acid ratios in apricot fruit juice. Bull. hort. Res. Stat., Hiratsuka, 8, 107-25. bibl. 41, 1969

Design of a multi purpose field instrument for measuring the mechanical properties of fruit of tomatoes and its application to the study of varietal differences. Bulletin of the Vegetable & Ornamental Crops Research Station Series B (Morioka) (3): 1-28, 1980

The role of varietal differences and fruit quality in the susceptibility of apples to Gloeosporium. Zashchita s kh kul' tur ot vreditekei, boleznei i sornyakov: 150-157, 1976

Studies of varietal differences in the reaction of tomatoes to poor lighting. Doklady TSKhA Timiriazevskaia sel'skokhoziaistvennaia akademiia: 56) 123-127, 1979

Studies on varietal differences in fruit-quality of apricot varieties grown at Regional Fruit Research Sub-station, Kandaghat. Progressive Horticulture 2(4): 67-71, 1971

Studies on the varietal suitability of apricots d for canning i varietal differences of citric acid and malic acid ratio in apricot d fruit juice. Bulletin Of The Horticultural Research Station (ministry Of Agriculture & Forestry) Series A (hiratsuka): 7-125, 1969

Etiology of Verticillium wilt in stone fruits; genetic and varietal differences in susceptibility to it. (Vines and fruit crops.). Texts of papers at the IVth All-Union Conference on immunity in Agricultural Plants, Kisinev., 03, 1965

Varietal differences in scab resistance and study of the nature of immunity in apples. Study of varietal susceptibility to scab in a collection of apples. (Vines and fruit crops.). Texts of papers at the IVth All-Union Conference on immunity in Agricultural Plants, Kisinev., 203-08, 1965

The mango fruit fly: population and varietal susceptibility studies. Zimbabwe Science News 29(1): 12-14, 1995

Studies on varietal differences in fruit quality of tomato. Indian Journal of Agricultural Research 13(1): 31-34, 1979

Studies on the germination physiology of pome fruit. IV. Studies on varietal differences regarding the temperature requirements and frost resistance during germination and on ageing phenomena in pome fruit seed. Z. Pflanzenz, 56. 35: 179-98. bibl. 18, 1955

Studies on the varietal differences in fruit quality in grapefruit (C. paradisi Macf.). Punjab hort. J 4: 104-6, 1964

Some studies on the ovaries of the non-pregnant camel (Camelus dromedarius). 2 - Anatomical and histological studies on the ovaries during their follicular phase. Desert Institute Bulletin A R E. 1979 ; 291: 361-369, 1983