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|Authors:||Patil, Bibhishan Balkrishna|
|Title:||EVALUATION OF HYBRID AND NATURAL SEEDLINGS OF GRAPE (Vitis sp.)|
|Publisher:||MAHATMTA PHULE AGRICULTURAL UNIVERSITY. RAHURI, (Dist-Ahmednagar)|
|Abstract:||New varieties can be evolved either by hybridization or by selection from naturally pollinated seedlings. As grape (Vitis vinifera L.) is a heterozygous crop, new varieties can be evolved by taking advantage of the genetical variations among the seedlings and therefore, it was decided to take recourse of seedling selection. . of The present investigation, "Evaluation/Hybrid and Natural Seedlings of Grape (Vitis sp.)n, was carried out at the Instructional-cum-Research Orchard, Rahuri, during the fruiting season of 1983-84. On the basis of preliminary observations and past records, 15 seedlings were taken up for the study. Among these 7 were planned hybrids and 8 were natural seedlings of Pandhari sahebi. During the course of evaluation of the seedlings, growth habit, stem fruiting spurs, new emerging shoot, leaf, floral cluster, bunch character, berry character, cropping potentiality and disease resistance c"..:. were studied. From the result it was observed that among the 7 planned hybrids only two, viz. Hy. 23-I-4/23 and Hy. ASCS-2-6 showed promise. The first one showed distinct improvement over Gulabi in colour, uniform berry size and ripening of bunch with heavy bearing potentiality'and freedom from major diseases i.e. powdery mildew, Downy mildew and Anthracnose. It is good for table and juice purpose, while the other hybrid showed improvement over Cheema sahebi in respect of berry adherence to pedicel and freedom from Powdery mildew and Anthracnose diseases, it is good for table purpose. Among the 8 seedlings of Pandhari sahebi four showed promise viz. Seedling I-4-8, III-8-21, III-8-25 and III-10-9. The seedling I-4-8 is seedless and therefore is useful for both table and raisin purpose. Seedling III—8—21 has retained foxy flavour of Gulabi and could be used for table and juice purpose. Seedling III-8-25 showed good berry adherence to pedicel and has mild foxy flavour and could be used for table purpose. Seedling III-10-9 produced large size bunches and could be used for table purpose. The above mentioned seedlings of Pandhari sahebi were almost free from the major diseases like Powdery mildew, Downy mildew and Anthracnose. Seedling III-8-25 and III-10-9 were heavy bearers while Seedling I-4-8 and III—8—21 were moderate and good bearer, respectively. From the result it could be concluded that the above mentioned two hybrids and seedlings of Pandhari sahebi are better bearers, disease tolerant and good for table purpose and could be used for commercial cultivation after further studies in the field for assessing yield performance on commercial scale.|
|Appears in Collections:||Thesis|
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