Desiccation-induced dormancy in papaya (Carica papaya L.)seeds is alleviated by heat shock (Record no. 48712)

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fixed length control field 02433nam a2200253Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625153943.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-14525
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250602s9999 xx |||||s2 |||| ||und|d
245 10 - TITLE STATEMENT
Title Desiccation-induced dormancy in papaya (Carica papaya L.)seeds is alleviated by heat shock
490 0# - SERIES STATEMENT
Volume/sequential designation Seed Science Research, 10, p.135-145, 2000
520 3# - SUMMARY, ETC.
Summary, etc. The effects of desiccation and temperature on the germination capability of Carica papaya L. were investigated for seeds extracted from three commercial fruit batches. More than 50 percent of freshly isolated, cleaned (sarcotesta removed)but undried seeds germinated at 26°C. However, desiccation to approx. 20 percent seed RH reduced germination at this temperature to < 10 percent. A substantial increase in germination at alternating temperatures (33/19°C)indicated that desiccation induced seed dormancy rather than viability loss. Dormancy could be removed in a large proportion of the population by the application of a single heat shock to rehydrated seeds for 4 h at 36°C, with subsequent return to 26°C for germination. Longer (days)and shorter (minutes)periods of heat shock were less effective for releasing dormancy. Heat shock was generally applied 5 or 14 d after rehydration had started, but the treatment was equally effective after imbibition for only 1 d. Light was always applied during both imbibition and the postheat shock treatment, but was not essential during the actual heat shock treatment. Rehydration and post-heat shock temperature treatments in the range of 16°C to 36°C revealed the same optima of 26°C. Dormancy was re-imposed in heat-shocked seeds when they were subsequently dried to seed relative humidities of 25 to 75percent (5 to 11 percent moisture content [fresh weight basis]), but this state could be removed by a further heat shock. The longer heat-shocked seeds were held on agar-water at 26°C prior to re-drying, the greater the level of desiccation intolerance.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CARICA PAPAYA L.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SEED DORMANCY
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element DESICCATION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element HEAT SHOCK
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element GERMINATION
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Wood, C.B.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Pritchard, H.W.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Amritphale, D.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1fOlYux1gvs2x97krfRp2P2cQMlP78xkV/view?usp=drivesdk">https://drive.google.com/file/d/1fOlYux1gvs2x97krfRp2P2cQMlP78xkV/view?usp=drivesdk</a>
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-14525 25.06.2025 25.06.2025 Documentos solicitados