TY  - SER
AU  - El-Eslamboly,A.A.S.A.
TI  - Seedless watermelon propagation by cuttings: B- effect of BA, IBA and cutting type on transplants production from cuttings
KW  - Watermelons
KW  - Cutting
KW  - Vegetative propagation
KW  - Butyric acid
KW  - seedless varieties
KW  - indole butyric acid
N1  - Includes bibliographical references
N2  - Cutting is one of the most important methods of vegetative propagation. The growing costs of seedless watermelon (triploid hybrids) in Egypt are very expensive because of its high seed price. seeds do not genninate well and they show less homogeneous germination and growth. For these reasons. the present imestigation aimed to propagate seedless watermelon by cuttings produced from stock plants (mother plants) and to study the effects of BA and IBA concentrations and cutting types and the interactions between them on the cutting success. Cuttings of seedless watermelon cv. Buttercup (QV 766) F₁ (yellow flesh) and SSX 7402 F₁ hybrid (red flesh) were taken from stock plants planted under optimal conditions and treated before as mother plant for cuttings at 45 and 75 days from transplant. Two types of cuttings were used. The first type was cuttings from tenninal growing point of the main stem and lateral branches 10 to 15cm in length and 0.45 to 0.6 em in diameter. The second type was cuttings included one node, bud and leaf. Cuttings were taken from these mother plants, at four time intervals. i.e., 105.135,165 and 195 days from transplanting. Mother plants were treated with 3 concentrations (0, 10 and 20 ppm) of BA for four times. i.e., after 75, 105,135 and 165 days to maintain and improve the physiological status ofthe mother plants. The cuttings of all times were treated with 3 concentrations of IBA, i.e., 0, 100 and 200 ppm to promote the adventitious roots formation. Cutting times 105 and 195 days were planted in speedling trays. These studies were conducted in factorial experiments in a randomized complete block design with three replicates for each, during the seasons of 2010/2011 and 2011/2012 at a nursery in Badrashein City, Giza Governorate, Egypt. The other cutting times at 135 and 165 days were taken to study the largest number of cutting which can be produced. Each hybrid and each cuttings time were conducted in a single experiment. The results showed that BA treatments played a major role in rejuvenation, improved the physiological status of the mother plants and increased the total number of the produced cuttings in addition to the significant effect on the survival percentage, roots number and length. All IBA concentrations showed significant effect on the survival percentage and root number and length
UR  - http://nile.enal.sci.eg/EALE/2014/BFACU/6514/2/193.pdf
ER  -