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Singh, Harminder
- Effect of Developmental Stage and Medium on Embryo Culture of Low Chill Peach Hybrids
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PDF Views:88
Authors
Affiliations
1 Department of Fruit Science, Punjab Agricultural University, Ludhiana 141 004, IN
1 Department of Fruit Science, Punjab Agricultural University, Ludhiana 141 004, IN
Source
Current Science, Vol 113, No 09 (2017), Pagination: 1771-1775Abstract
The main objective of the present programme was to widen the varietal range of early ripening peach cultivars. Crosses were made between Shan-i-Punjab x Florda Prince, Shan-i-Punjab x Flordaglo and Shan-i- Punjab x Prabhat. The embryos of these crosses were rescued after 65, 75 and 85 days of crossing and cultured in MS basal medium supplemented with varying concentration of BAP (0 to 2 mg/l) and IBA (0 to 1 mg/l). After stratification at 4°C, the embryo cultured tubes were transferred to a growth chamber at 24 ± 2°C for germination. Seeds harvested at 85 days after crossing showed maximum embryo germination (75.26%). Among these crosses, hybrid-3 (Shan-i-Punjab x Prabhat) showed maximum germination (81.66%) in M2 medium (MS medium + BAP 0.25 mg/l + IBA 0.05 mg/l) when rescued after 85 days of pollination. Embryos harvested at fully matured stage (85 days after pollination) took minimum days to germinate.Keywords
Embryo Germination, Growth Stages, Low Chill Peach Hybrids, Media.Full Text
References
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- Effect of Light Interception and Penetration at Different Levels of Fruit Tree Canopy on Quality of Peach
Abstract Views :184 |
PDF Views:79
Authors
Affiliations
1 Punjab Agricultural University, Ferozepur Road, Ludhiana 141 004, IN
1 Punjab Agricultural University, Ferozepur Road, Ludhiana 141 004, IN
Source
Current Science, Vol 115, No 8 (2018), Pagination: 1562-1566Abstract
Peach trees were trained to four systems, viz. Yshaped, Hedge row, Espailer and V trellis. Irrespective of the training system in upper canopy total PAR increased from January to July and then a decrease was recorded. However, in lower canopy an inverse trend was recorded. The total radiation intercepted during the year was maximum (59.99%) in Espailer system followed by V trellis (57.76%). Minimum radiation interception (49.05%) was recorded in trees trained to Hedge row. Upper canopy part of the tree received more PAR which influenced fruit quality in terms of size, weight, acidity, total sugars, firmness.Keywords
Canopy Management, Quality Improvement, Peach, PAR, Training Systems.Full Text
References
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