Propagation Potentials of Genotypes and Different Physiological Ages of Stem Cuttings in Jatropha curcas L.

Abstract

<span style="font-family: ";Arial";,";sans-serif";; font-size: 12pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Propagation potentials of stem cuttings of different physiological ages and genotypes of <em>Jatropha curcas</em><span style="mso-bidi-font-style: italic;"> </span>were studied at UKM, Malaysia. Stem cuttings of the different physiological ages (hardwood, semi hardwood and soft wood) taken from five selected genotypes of Jatropha and were planted soil media (top soil). Data were collected on the attributes of the stem cuttings and were analyzed using computer based software, SAS version 9.01. The study showed significant variability in shoot and root development and growth of shoots of the three physiological ages of cuttings and five genotypes. Semi hardwood stem cuttings had lower days to opening of new bud and shooting (4.84 and 11.70, respectively) as well as higher percentage of sprouted and rooted cuttings of 100.00% and 98.47%, respectively. Soft wood cuttings took higher days to opening of new bud and shoot development in all the five genotypes. Soft wood cuttings also showed lower percentage of rooted cuttings. Semi hard wood cuttings were found more suitable for the vegetative propagation of <em style="mso-bidi-font-style: normal;">Jatropha curcas</em> through stem cutting which gave more than 98% success. <span style="color: black;">Genotypic differences were observed in shooting and rooting of Jatropha.</span> Genotype JC 14 performed better in all three types of cutting compared to other four genotypes.</span

Effects of growth media on rooting of stem cuttings of hybrid coffee varieties

“…This difference in rooting percentage is associated with their variation in genetic makeup which influence the amount of root promoting substances and interactions between genetic and environmental factors as reported earlier (Amissah and Bassuk, 2007;Gopale and Zunjarrao, 2011;Pijut et al, 2011). Previous studies have also documented that increasing rooting percentage was related to large leaves and stem sizes (Islam et al, 2010;Gehlot et al, 2015;Ou-Yang et al, 2015). For instance, stem cuttings from neem (A. indica A. Juss) with 0.5 to 1.5 cm diameters significantly increased rooting compared to cuttings with diameter of less than 0.5 cm (Gehlot et al, 2015).…”

Root and axillary shoot development of hairy vetch stem cuttings and cessation of flower development under a short photoperiod

“…Genotypic variation for root propagation efficiency has been observed in numerous other species (Husen, 2004; Islam, Yaakob, Anuar, & Osman, 2010; Tate & Page, 2018). The MSP4101 population that we evaluated did not appear to have immense variation for root propagation, as rates were generally high across treatments.…”

KEBERHASILAN STEK TANAMAN LAMTORO VARIETAS TARRAMBA (Leucaena leucocephala cv. Tarramba) KARENA PENGARUH UMUR FISIOLOGIS DAN ZAT PENGATUR TUMBUH

“…Stek batang adalah metode tradisional dan menjanjikan untuk perbanyakan tanaman (Gopale dan Zunjarrao, 2011). Keberhasilan perbanyakan tanaman melalui stek dipengaruhi oleh genotip, umur fisiologis, posisi, serta diameter batang (Islam et al, 2010;Kraiem et al, 2010;Hennig, 2003). Terbentuknya akar dari tanaman berkayu atau tanaman tahunan menurun seiring dengan umur tanaman induknya (Kraiem et al, 2010).…”