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Indian Journal of Natural Products and Resources (IJNPR)
[Formerly Natural Product Radiance (NPR)] >
NPR Vol.8 [2009] >
NPR Vol.8(2) [March-April 2009] >
| Title: | Determination of suitable cutting size for vegetative propagation and comparison of propagules to evaluate the seed quality attributes in Jatropha curcas Linn. |
| Authors: | Kathiravan, M
Ponnuswamy, A S
Vanitha, C |
| Keywords: | Jatropha
Jatropha curcas
Seed quality
Survival percentage
Vegetative propagation |
| Issue Date: | Apr-2009 |
| Publisher: | CSIR |
| IPC Code: | Int. cl.8 — A01G 1/00, A01H 5/04, A61K 36/00, A61K 36/47 |
| Abstract: | An attempt was made to propagate the Jatropha, Jatropha curcas Linn. through
stem cutting without any rooting hormonal treatments. The cuttings were selected with three different
lengths, viz. 20 cm (L1), 30 cm (L2) and 40 cm (L3) and four different stem thickness:
1.5-2.0 cm (T1), 2.0-2.5 cm (T2), 2.5-3.0 cm (T3) and 3.0-3.5 cm (T4). The cuttings were planted
in the nursery and observed for survival percentage, number of leaves per plant, root volume, root
fresh and dry weight on 90 days after planting. The result revealed that the stem cutting with 40 cm
length (L3) and 2.5 to 3.0 cm thickness (T3) was found to be very suitable for quicker regeneration
with seedling quality characteristics compared to other types of cuttings. Hence, to find out the
suitable propagating material for commercial exploitation, the best performed stem cutting with 40
cm length (L3) and 2.5 to 3.0 cm thickness T3) along with freshly harvested seeds were forwarded to
field trial. The plant biometric characteristics, fruit and seed quality attributes were observed in both
the treatments and compared to find out the best propagating techniques. The plants propagated by
seeds recorded more plant height (1.65 m), number of branches (3.2). However, the flowering was
four days earlier by cuttings than the plants propagated by seeds. The reproductive character of the
monoecious inflorescence in terms of male to female flower ratio was higher in seed propagated crop
(24:1) than cuttings (22:1). J. curcas propagated through seeds recorded better performance
related to plant biometric and seed quality characteristics compared to cuttings, which induced early
flowering and more female flowers than the seed crop. |
| Page(s): | 162-166 |
| ISSN: | 0972-592X |
| Source: | NPR Vol.8(2) [March-April 2009]
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