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Titolo:
A STUDY OF KING GRASS (PENNISETUM-PURPUREUM SP) MUTANTS OBTAINED BY NUCLEAR TECHNIQUES AND CHEMICAL MUTAGENS .2. MORPHOLOGICAL INDICATORS
Autore:
HERRERA RS; CRUZ R; MARTINEZ RO;
Indirizzi:
ACAD SCI CUBA,INST ANIM SCI,APARTADO 24 HAVANA CUBA
Titolo Testata:
Cuban journal of agricultural science
fascicolo: 2, volume: 27, anno: 1993,
pagine: 205 - 210
SICI:
0864-0408(1993)27:2<205:ASOKG(>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Keywords:
NUCLEAR TECHNIQUES; CHEMICAL MUTAGENS; MUTANTS; AGRONOMICAL INDICATORS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
NO
Recensione:
Indirizzi per estratti:
Citazione:
R.S. Herrera et al., "A STUDY OF KING GRASS (PENNISETUM-PURPUREUM SP) MUTANTS OBTAINED BY NUCLEAR TECHNIQUES AND CHEMICAL MUTAGENS .2. MORPHOLOGICAL INDICATORS", Cuban journal of agricultural science, 27(2), 1993, pp. 205-210

Abstract

The morphological indicators of king grass (Pennisetum purpureum sp) obtained by the application of nuclear techniques (CUBA MF, 1000, 12, 18, 24, 30, 40 and 50 and chemical mutagens (CUBA MQ 1 and 2) were studied in a random block design with 4 replications. The lowest (P < 0.05) internode distance (12.51 cm) was found in CUBA MF 24. With the exception of CUBA MF 30, the stem thickness of the mutants were larger (P< 0.001) to the control during the dry season; in the rainy season differences were less marked. There were differences (P < 0.05) between mutants for the leaf insertion angle and it varied between 23.43 and 30.63 and between 13.42 and 21.42 in the dry and rainy seasons, respectively. The greatest number of leaves with 50% or more of chlorosis waspresent (P < 0.001) in CUBA MF 12, 18, 40, 50, CUBA MQ 1 and 2 duringthe dry season, while in the rainy season it only occurred in CUBA MF1000 and 18. In both seasons, the leaf length of the CUBA MF 1000 andCUBA MQ 2 was superior (P < 0.001) to the control. There were significant differences in the sheath length between mutants with a range of values of 18.73 - 22.83 and of 22.37 - 25.67 in the dry and rainy seasons, respectively. Results show the possibility of obtaining mutants by the use of nuclear techniques and chemical mutagens, being prominentthe CUBA MF 1000, 12, 18, 24, CUBA MQ 1 and 2, although further studies are required.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 09:59:44