CHARACTERIZATION OF SOME PEACH [Prunus persica (L.) Batsch] GERMPLASM ACCESSIONS
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Date
2016
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ABSTRACT
The present investigation entitled “Characterization of some peach [Prunus persica (L.) Batsch] germplasm accessions” was carried out in the Department of Fruit Science, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni-Solan. 15 peach accessions namely July Elberta, Early Redhaven, Suncrest, TropicSweet, Paradelux, Saharanpur Prabhat, Earligrande, Flordaprince, TropicSnow, Flordaglo, Vallegrande, TropicBeauty, Pratap,Shan-i-Punjab and Glohaven were evaluated for their tree, foliage, floral and fruit characters. Yield efficiency was recorded maximum (0.54%) in Pratap whereas minimum (0.18%) in Early Redhaven. Serration was observed to be varied from crenate (4 accessions) to shallow serrate (6 accessions) to deep serrate (5 accessions). Nectaries (glands) were observed as globose in Vallegrande, Earligrande, Paradelux, Pratap and Shan-i-Punjab whereas reniform in rest of the accessions. Time of leaf bud burst was earliest in Flordaprince on 11th January followed by Saharanpur Prabhat on 12th January and July Elberta was the last on 5th February. Petal shape was observed as circular in 5 accessions and medium ovate in 10 accessions. The flower initiation was found to be earliest in Saharanpur Prabhat on 10th January followed by Flordaprince on 11th January whereas July Elberta was the last on 4th February. Maximum fruit length (53.69 mm) was recorded in Early Redhaven and minimum (37.37 mm) in Saharanpur Prabhat whereas fruit breadth was recorded maximum (54.38 mm) in Flordaprince and minimum (42.62 mm) in July Elberta. Mucron tip was present in seven accessions whereas absent in eight accessions. Flesh colour was observed as white in Saharanpur Prabhat, Flordaglo and TropicSnow whereas yellow in remaining peaches under study. Adherence of stone to flesh was absent in July Elberta, Early Redhaven, Suncrest, Pratap, Shan-i-Punjab, Glohaven, TropicSweet, Saharanpur Prabhat and TropicSnow whereas present in rest of the accessions. From the present study, it can be concluded that all the accessions studied recorded variation for most characters and the descriptive database so developed will help in DUS testing and in multiplication of true to type planting material.
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nitrogen, fruits, planting, spacing, yields, developmental stages, land resources, bottle gourd, hybrids, harvesting, peach [Prunus persica (L.) Batsch] ,germplasm