Comparative performance of different genotypes of peach based on their rooting response of hardwood cuttings
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Date
2017-07
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Department of Horticulture (Fruit & Fruit Technology), BAU, Sabour
Abstract
Considering the unavailability of information of the effect of rooting hormones in combination with modified growing conditions on the rooting characteristics of Peach (Prunus persica (L.) Batsch) cuttings under agro climate conditions of Bihar, the experiment was undertaken at the Horticulture Garden, Bihar Agricultural University, Sabour, Bhagalpur, India. Besides being cultivated in the temperate climate in the hills, it is also cultivated in the North Indian plains (subtropical climate) in the states of Punjab, Haryana, Rajasthan and Uttar Pradesh with the introduction of low chilled peaches. The subtropical peaches come in the market early in season (mid-April), growers can get higher returns due to scarcity of other fresh fruits. As some varieties of Peach (Shan-i-Punjab, Pratap, Prabhat, Florda Prince & Early Grande) are available in Bihar and these are well responding in terms of fruiting. But its cultivation is limited in Bihar due to lack of its planting material. Properly prepared hardwood cuttings of about 15-20cm length and 0.8-1.2cm diameter having 5-6 buds were prepared from the dormant twigs of the 4-5 years old peach plants in the second fortnight of November. The basal portion of the cuttings was dipped in different doses of Nine treatments viz. IBA (1500 ppm, and 3000 ppm), NAA (1000 ppm, and 2000 ppm) and combinations of IBA and NAA (IBA 1500 ppm + NAA 1000 ppm, IBA 1500 ppm + NAA 2000 ppm, IBA 3000 ppm + NAA 1000 ppm and IBA 3000 ppm + NAA 2000 ppm) and control were evaluated.
On the basis of data recorded on rooting parameters after 45 days of planting, it is concluded that highest survival percentage (90.63%) was recorded in Shan-e-Punjab followed by Early Grande (86.16%) and then by Florda Prince (80.54%), Pratap (72.35%), and Prabhat (40.62%) by IBA-3000ppm. Highest rooting percentage (60.12%) was recorded in Shan-e-Punjab followed by Early Grande (58.86%) and then by Florda Prince (56.32%), Pratap (43.87%), and Prabhat (31.12%) treated with IBA-3000ppm. Highest average root length (9.48cm) was recorded in Early Grande followed by Shan-e-Punjab (8.51cm), Florda Prince (8.23cm), Pratap (5.00cm) and Prabhat (4.55cm) by IBA-3000ppm. Highest root thickness (3.08mm) was recorded in Early Grande followed by Shan-e-Punjab (2.99mm), Florda Prince (2.89mm), Pratap (2.08mm) and Prabhat (1.69mm) by IBA-3000ppm. The highest callusing percentage (87.68%) was recorded in Early Grande followed by Shan-e-Punjab (84.51%), Florda Prince (78.67%), Pratap (60.54%), and Prabhat (57.31%) by treatment IBA-3000ppm. The highest number of roots/cutting (13.00) was recorded in Early Grande followed by Shan-e-Punjab (12.00), Florida Prince (10.60), Pratap (5.00) and Prabhat (4.50) by the treatment IBA-3000ppm. It is concluded that IBA at 3000 ppm was found to be the best treatment for propagation of peach through hardwood cuttings.
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