FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015672015> ?p ?o ?g. }

• W2015672015 abstract "WEAVER, GERALD M., and L. FREDRIC HOUGH. (Rutgers, The State Univ., New Brunswick, N. J.) Seedling growth studies of early-ripening peaches. I. Interrelationship between embryo maturity, growth substances and seedling growth. Amer. Jour. Bot. 46(10): 718-724. Illus. 1959.-Peach fruits of 'Raritan Rose' were harvested 75, 83, 91, 99 and 107 days after full bloom. Embryos were excised, and cultured on artificial media. Growth responses following 8 wk. cold treatment varied considerably with embryo maturity. No correlation existed between seedling survival and the initial responses of shoots. Root growth of 83-day embryos exceeded that of all other stages of maturity. This was reflected in maximum seedling survival and vigor. Initial shoot growth was greatest from embryos harvested at 91 days and at maturity (107 days), but all shoots developed into rosettes which may expand slightly or develop normally from axillary buds. Bioassays of growth substances suggest a strong correlation between early shoot development and auxin concentration. Root growth-responses appeared to be correlated with a promotor-inhibitor balance. The results of wheat coleoptile assays of embryo extracts chromatographed in an isopropanol: ammonia: water solvent (8:1:1) suggest the presence of three growth promotors, in greatest concentration at Rf 0.70, but also at Rf values 0.10 and 0.30. Two growth inhibitors were present in embryo tissue at Rf values 0.27 and 0.96, the former decreasing in concentration with increasing embryo maturity. THE POOR germination of seeds of early-ripening peach varieties is a major obstacle in the development of still earlier-ripening peaches. Low viability was recognized by Connors (1920) as due to incomplete embryo development in early-ripening varieties. Thus, at fruit maturity, the cotyledons had not, as yet, filled the seed coats, and considerable transparent endosperm occupied this space. This situation was quite different from that of later-ripening peaches, in which he described seed maturity as preceding that of the fruits. Tukey (1933) confirmed these findings, reporting non-viability of seeds in varieties which ripened prior to 80 days from pollination. Among those that germinated, there were a large number of abnormal seedlings. The v-iability increased while the percentage of abnormalities decreased in later-ripening varieties. A considerable degree of non-viability was overcome by Davidson (1933, 1934) bv removing the seed coats. by culturing the embryvos on artificial media, and by cold treatment. Modifications in culture techniques by Lesley and Bonner (1952), Kester and Hesse (1955), and Brooks and Hough (1958), have extended the versatilitv of these methods, so that embryos of consistently earlier maturitv have been successfully cultured and germinated. In gen1 Received for publication May 1, 1959. Paper of Journal Series. New Jersey Agricultural Experiment Station, Rutgers, The State University, Department of Horticulture, New Brunswick, New Jersey. The authors wish to express their deep appreciation to Drs. James E. Gunckel, Seymour Shapiro, and Harold Clark for their helpful suggestions in the preparation of the manuscript. 2 Present address: General Cigar Company, Inc., West Hartford, Connecticut. eral, however, embryo culture methods have been disappointing with respect to the development of seedlings for use in the peach breeding program. For, while germination rates are exceedingly high, the seeds fail to develop into normal seedlings. Rather, they are characterized by the development of rosette and curled leaf anomalies (Davidson, 1934; Tukey, 1938). The relationship between embryo maturity and seedling germination and growth was investigated to determine the earliest date for successful culture of embryos of the 'Raritan Rose' peach. A second aspect of this study was to determine the relationship between embryo maturity and naturally occurring growth regulators, on the assumption that the interaction of auxins and inhibitors might account for differences in seedling growth at the various stages of embryo maturity. MATERIALS AND METHODS.-Seeds of 'Raritan Rose,' an early, midseason, white-fleshed peach variety, were harvested at 8-day intervals, beginning 75 days from full bloom and continuing until fruit maturity at 107 days. Seeds at each harvest were divided into 7 replications of 10 seeds each, 3 replications for growth studies and 4 for the analysis of growth substances. All embryos were excised aseptically at harvest and cultured on sterile nutrient agar media containing inorganic salts and 2% sucrose (Brooks and Hough, 1958). Culture tubes were plugged with cotton and sealed with a parafilm cover to prevent contamination and dessication of the media. Following 8-wk. cold treatment at 40 C., the cultures of 3 replications were placed in a greenhouse for germination and seedling growth" @default.
• W2015672015 created "2016-06-24" @default.
• W2015672015 creator A5026642235 @default.
• W2015672015 creator A5071192814 @default.
• W2015672015 date "1959-12-01" @default.
• W2015672015 modified "2023-09-26" @default.
• W2015672015 title "SEEDLING GROWTH STUDIES OF EARLY-RIPENING PEACHES. I. INTERRELATIONSHIP BETWEEN EMBRYO MATURITY, GROWTH SUBSTANCES AND SEEDLING GROWTH" @default.
• W2015672015 cites W1971563367 @default.
• W2015672015 cites W1987565107 @default.
• W2015672015 cites W1989410474 @default.
• W2015672015 cites W1990729744 @default.
• W2015672015 cites W2000437768 @default.
• W2015672015 cites W2003530061 @default.
• W2015672015 cites W2031711684 @default.
• W2015672015 cites W2092713296 @default.
• W2015672015 cites W2322628676 @default.
• W2015672015 cites W2335179337 @default.
• W2015672015 doi "https://doi.org/10.1002/j.1537-2197.1959.tb07077.x" @default.
• W2015672015 hasPublicationYear "1959" @default.
• W2015672015 type Work @default.
• W2015672015 sameAs 2015672015 @default.
• W2015672015 citedByCount "3" @default.
• W2015672015 crossrefType "journal-article" @default.
• W2015672015 hasAuthorship W2015672015A5026642235 @default.
• W2015672015 hasAuthorship W2015672015A5071192814 @default.
• W2015672015 hasConcept C100701293 @default.
• W2015672015 hasConcept C101433766 @default.
• W2015672015 hasConcept C104317684 @default.
• W2015672015 hasConcept C138496976 @default.
• W2015672015 hasConcept C144027150 @default.
• W2015672015 hasConcept C15744967 @default.
• W2015672015 hasConcept C172353545 @default.
• W2015672015 hasConcept C196843134 @default.
• W2015672015 hasConcept C207778908 @default.
• W2015672015 hasConcept C21410773 @default.
• W2015672015 hasConcept C2776096895 @default.
• W2015672015 hasConcept C55493867 @default.
• W2015672015 hasConcept C59822182 @default.
• W2015672015 hasConcept C86803240 @default.
• W2015672015 hasConcept C94893600 @default.
• W2015672015 hasConcept C95444343 @default.
• W2015672015 hasConceptScore W2015672015C100701293 @default.
• W2015672015 hasConceptScore W2015672015C101433766 @default.
• W2015672015 hasConceptScore W2015672015C104317684 @default.
• W2015672015 hasConceptScore W2015672015C138496976 @default.
• W2015672015 hasConceptScore W2015672015C144027150 @default.
• W2015672015 hasConceptScore W2015672015C15744967 @default.
• W2015672015 hasConceptScore W2015672015C172353545 @default.
• W2015672015 hasConceptScore W2015672015C196843134 @default.
• W2015672015 hasConceptScore W2015672015C207778908 @default.
• W2015672015 hasConceptScore W2015672015C21410773 @default.
• W2015672015 hasConceptScore W2015672015C2776096895 @default.
• W2015672015 hasConceptScore W2015672015C55493867 @default.
• W2015672015 hasConceptScore W2015672015C59822182 @default.
• W2015672015 hasConceptScore W2015672015C86803240 @default.
• W2015672015 hasConceptScore W2015672015C94893600 @default.
• W2015672015 hasConceptScore W2015672015C95444343 @default.
• W2015672015 hasLocation W20156720151 @default.
• W2015672015 hasOpenAccess W2015672015 @default.
• W2015672015 hasPrimaryLocation W20156720151 @default.
• W2015672015 hasRelatedWork W1248921198 @default.
• W2015672015 hasRelatedWork W1542880380 @default.
• W2015672015 hasRelatedWork W161966099 @default.
• W2015672015 hasRelatedWork W2006727880 @default.
• W2015672015 hasRelatedWork W2038491073 @default.
• W2015672015 hasRelatedWork W2095981311 @default.
• W2015672015 hasRelatedWork W2239725581 @default.
• W2015672015 hasRelatedWork W2243980065 @default.
• W2015672015 hasRelatedWork W2330219770 @default.
• W2015672015 hasRelatedWork W2346729154 @default.
• W2015672015 hasRelatedWork W235855438 @default.
• W2015672015 hasRelatedWork W2518719550 @default.
• W2015672015 hasRelatedWork W2935402282 @default.
• W2015672015 hasRelatedWork W2979512656 @default.
• W2015672015 hasRelatedWork W3048702219 @default.
• W2015672015 hasRelatedWork W3198998600 @default.
• W2015672015 hasRelatedWork W588102207 @default.
• W2015672015 hasRelatedWork W629239640 @default.
• W2015672015 hasRelatedWork W792197092 @default.
• W2015672015 hasRelatedWork W2174586040 @default.
• W2015672015 isParatext "false" @default.
• W2015672015 isRetracted "false" @default.
• W2015672015 magId "2015672015" @default.
• W2015672015 workType "article" @default.