Patents for the Morphophysiological Quality of Seedlings and Grafted Peach Trees: Effects of Nutrient Solution and Substrates.

Q1 Agricultural and Biological Sciences
Aline G Souza, Oscar J Smiderle, Ricardo E Muraro, Valmor J Bianchi
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引用次数: 5

Abstract

Background: This study aimed to verify the influence of different substrates with and without addition of nutrient solution on the roostocks production of Capdeboscq cultivar and grafted peach plants of 'Chimarrita' scion.

Methods: In the first experiment, the height and stem diameter of the rootstocks were evaluated every two weeks, up to 90 days after transplanting (DAT). At 90 DAT, dry weight of shoots and roots, total dry mass and Dickson Quality Index were evaluated. In the second experiment, seedlings of 'Capdeboscq' were grafted with 'Chimarrita' scion. The growth of the scions and the percentage of living grafts were evaluated. At 146 DAT, the stem diameter of the scions, the SPAD index, the chlorophyll and nitrogen balance index were evaluated.

Discussion: The greatest mean values for the stem diameter of seedlings of the cv. Capdeboscq were obtained with the substrates T4 (5.53 mm); T2 (5.47 mm) and T1 (5.23 mm) with addition of nutrient solution, with seedlings reaching the plant standards according to the ordinance number 173 of May 27th of 1984, which recommends that rootstocks have to have a minimum stem diameter of 5.0 mm. Thus, the substrates which received the addition of nutrient solution, except the soil substrate, were adequate considering the rules that governing the peach tree production in Brazilian Nurserioes.

Conclusion: The nutrient solution already avaliblabe for Recent patents is highly indicated to obtain seedlings of 'Capbdboscq' rootstocks with high mophophysiological quality in less time during nursery cycle of plant production. The largest stem diameter for 'Capdeboscq' was obtained with substrate 35% sand + 15% soil + 50% bovine manure (5.53 mm); 75% sand + 25% soil (5.47 mm) and 100% sand (5.23 mm) with addition of nutrient solution. The best morphophysiological characteristics of 'Chimarrita' plants grafted on 'Capdeboscq' seedlings was obtained with the use of substrates 75% sand + 25% soil and 35% sand + 15% soil + 50% bovine manure, whose plants reached a morphological standard for sale, in just four and a half months DAT, that is 56 days after grafting.

苗木和嫁接桃树形态生理品质专利:营养液和基质的影响。
背景:本研究旨在验证不同基质加营养液和不加营养液对红桃栽培品种和‘Chimarrita’接穗嫁接植株的砧木产量的影响。方法:在第一个试验中,每两周对砧木的高度和茎粗进行评估,直至移栽后90天。在90 DAT时,评价茎和根的干重、总干质量和Dickson质量指数。在第二个试验中,将'Capdeboscq'的幼苗嫁接到'Chimarrita'的接穗上。观察接穗的生长情况和移植物存活率。146dat时,测定接穗茎粗、SPAD指数、叶绿素和氮平衡指数。讨论:cv的幼苗茎粗的最大平均值。底物T4 (5.53 mm)得到Capdeboscq;T2 (5.47 mm)和T1 (5.23 mm),添加营养液,幼苗达到1984年5月27日第173号条例规定的植株标准,该条例建议砧木的最小茎粗必须为5.0 mm。因此,考虑到巴西苗圃桃树生产的规则,除土壤基质外,接受营养液添加的基质是足够的。结论:在植物生产的苗圃周期中,已获得专利的营养液可在较短的时间内获得高生理生理质量的‘Capbdboscq’砧木幼苗。当基质为35%砂+ 15%土+ 50%牛粪时,‘Capdeboscq’茎粗最大(5.53 mm);75%砂+ 25%土(5.47 mm)和100%砂(5.23 mm)加营养液。采用75%砂+ 25%土和35%砂+ 15%土+ 50%牛粪基质嫁接的‘Chimarrita’植株形态生理特征最佳,嫁接后仅4个半月即56天就达到了形态标准。
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来源期刊
Recent patents on food, nutrition & agriculture
Recent patents on food, nutrition & agriculture Agricultural and Biological Sciences-Agronomy and Crop Science
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