Blood-derived compounds can efficiently prevent iron deficiency in the grapevine
Sandra López‐RayoMichele Di FoggiaGiuseppe BombaiFelipe YuntaÉrica Rodrigues MoreiraGianfranco FilippiniA. PisiAdamo Domenico Rombolà
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Background and Aims The present study investigated the effectiveness of bovine blood (BB)-based products, compared with that of the widely used iron ethylenediaminedi-(2-hydroxyphenylacetic) acid (Fe-EDDHA) synthetic chelate, in iron nutrition of grapevine graft combinations and rootstocks grown under different controlled conditions. Methods and Results In experiments under nutrient solution utilising rhizoboxes and pots, the effect of iron application treatments was evaluated through biometric and chlorophyll index measurements, leaf nutrient concentration and root scanning electron microscopy. Conclusions The bovine blood compounds improved iron nutrition of the grapevine similar to or better than Fe-EDDHA and enhanced root growth. Significance of the Study The experimental evidence indicates that BB-based products represent a sustainable alternative to synthetic chelates as Fe fertilisers.The experiment entitled “Studies on effect of age of rootstock and scion on success, survival and growth of brinjal grafts” was carried out in 2018-19 to standardize the age of scion and rootstock seedlings for grafting which consists of nine treatment combinations viz.T1: 20 days old scion grafted on 20 days old rootstock, T2: 25 days old scion grafted on 20 days old rootstock, T3: 30 days old scion grafted on 20 days old rootstock, T4: 20 days old scion grafted on 25 days old rootstock, T5: 25 days old scion grafted on 25 days old rootstock, T6: 30 days old scion grafted on 25 days old rootstock, T7: 20 days old scion grafted on 30 days old rootstock, T8: 25 days old scion grafted on 30 days old rootstock, T9: 30 days old scion grafted on 30 days old rootstock and each treatment was replicated thrice in Randomized Block Design.The brinjal cultivar Swarn Pratibha was used as rootstock and Kali-rawai was used as scion. Less number of days (7.60) were required for graft union in T1 whereas highest number of days (8.20) were required for graft union in T6. Highest grafting survival (75.33%) at 30 DAG was observed in treatment T5 whereas lowest grafting survival (70.67%) at 30 DAG was observed in treatment T3 and T7.
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SummaryThe contributions by scion and by rootstock to a number of aspects of the growth and form of four-year-old deblossomed compound trees have illustrated that major contrasts may occur between the influence of a given clone when present as a scion to that when present as a rootstock. Nevertheless, contributions by scion and by rootstock, assessed upon all combinations as scion and as rootstock of all clones in the experiment, are largely additive, mean squares for scion/rootstock interaction being often statistically insignificant or, relatively, quite unimportant. Such conclusions arise, with the clones examined, in the cases of apple, quince and cherry.
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Roots Propagation Compatibility and Stock- Scion Interactions as Related to Dwarfing Apple Rootstocks Pear Rootstocks Peach Rootstocks Cherry Rootstocks Almond Rootstocks Apricot Rootstocks Plum Rootstocks Citrus Rooststocks Pecan Rootstocks Juglan Rootstocks Vitis Rootstocks Index.
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