Early Spring Application of Aminoethoxyvinilglycine (Avg) Increases Fruit Set and Yield of ‘Rocha’ Pears

Pasa, Mateus da Silveira; Carra, Bruno; Silva, Carina Pereira da; Ciotta, Marlise Nara; Brighenti, Alberto Fontanella; Pereira, Adilson José

doi:10.1590/0100-29452017982

Cited by 7 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The climate of the region is a mesothermal humid (Cfb) according to Köppen-Geiger classification, i.e, humid subtropical, oceanic climate, without dry season, with temperate summer (Alvares et al 2014). The soil of the experimental orchard is a "Cambissolo Húmico" (Inceptisol) (Pasa et al, 2017;Pasa et al 2018).…”

Section: Methodsmentioning

confidence: 99%

Fertility of buds and pruning recommendation of different grapevine varieties grown in altitude regions of Santa Catarina State, Brazil

Meneguzzi¹,

Filho²,

Brighenti

et al. 2020

Rev. Ceres

Self Cite

View full text Add to dashboard Cite

Low bud fertility index is frequently observed in different grapevine varieties grown in high altitude of Santa Catarina Sate; in many cases less than one cluster per bud is observed. The objective of this study was to assess bud fertility of twenty six Vitis vinifera L. varieties and from this information, to recommend the method of pruning more suitable for these varieties in high altitude conditions. The grapevine canes and buds were collected from production vineyards located in São Joaquim, Santa Catarina State, in two consecutive vintages. Fifteen cane cuttings containing 10 nodes per variety were collected to determine bud fertility and placed in a growth chamber with controlled relative humidity, light, temperature. After budbreak, buds were classified as fertile or non-fertile according to the presence or absence of the inflorescence. The bud fertility varies according to the variety and its position in the cane. Merlot, Cabernet Franc, Cabernet Sauvignon, Tinta Roriz and Tinta Caiada, which present higher fertility in basal buds, are recommended for short or long pruning. The varieties Chardonnay,

show abstract

Section: Methodsmentioning

confidence: 99%

Fertility of buds and pruning recommendation of different grapevine varieties grown in altitude regions of Santa Catarina State, Brazil

Meneguzzi¹,

Filho²,

Brighenti

et al. 2020

Rev. Ceres

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this regard, applications of aminoethoxyvinilglycine (AVG) two weeks after full bloom were reported to increase fruit set in 'Packham's Triumph' pears (Dussi et al, 2000). Pasa et al (2017a) reported that AVG sprays on 'Rocha' pears at both one and two weeks after full bloom increased fruit set, but late applications after petal fall have not been reported.…”

Section: Discussionmentioning

confidence: 99%

“…In situations of poor setting, the first approach that is usually adopted is the use of plant growth regulators (PGRs). The options are diverse, and include gibberellins (GA3, GA4+7 formulates), auxin-like substances (IAA, NAA and NAAm), cytokinins (zeatin-related and adenine-related molecules, kinetin and 6-BA), ethylene inhibitors (aminoethoxyvinilglycine), growth control regulators (prohexadione-Ca), and even the use of anti-gibberellin formulates (Carra et al, 2018;Costa, 2017;Pasa et al, 2017a;Vercammen et al, 2015;Webster, 2002).…”

Section: Introductionmentioning

confidence: 99%

Post petal fall applications of gibberellins improve fruit set on pear

Lordan¹,

Vilardell

Peris³

et al. 2019

Scientia Horticulturae

View full text Add to dashboard Cite

Commercial pear production has become increasingly difficult over the last decade, with low fruit set being one of the main factors leading to poor yield of pear orchards. The use of gibberellins to increase fruit set has been widely reported, but in most of the cases these applications are made at full bloom or right after a spring frost has occurred. However, the increase in fruit set due to early applications of gibberellins such as at full bloom is often lost at June drop. Aim of this study was to assess dose and timing of different gibberellin applications made after petal fall to improve the final fruit set in pear orchards.Four experiments were conducted during four years (2010)(2011)(2012)(2013) in mature pear orchards with 'Conference' as the scion cultivar. Fruit set and yield were increased when gibberellins were applied after petal fall, with a positive relationship with dose.Applications of GA4+7+BA tended to promote higher fruit set and yield than GA3, and in addition, they were less dependent to the moment of application. GA4+7+BA showed an additive effect when performing multiple applications. Return bloom was slightly affected when gibberellins were applied after petal fall. The strategy that showed a better behavior to increase fruit set was GA4+7+BA at 500 mL•ha -1 at H+14, which coincides with the weeks of the natural fruit drop.

show abstract

Pectobacterium carotovorum subsp. actinidiae associated with canker on pear trees in Brazil

et al. 2020

View full text Add to dashboard Cite

Early Spring Application of Aminoethoxyvinilglycine (Avg) Increases Fruit Set and Yield of ‘Rocha’ Pears

Cited by 7 publications

References 14 publications

Fertility of buds and pruning recommendation of different grapevine varieties grown in altitude regions of Santa Catarina State, Brazil

Fertility of buds and pruning recommendation of different grapevine varieties grown in altitude regions of Santa Catarina State, Brazil

Post petal fall applications of gibberellins improve fruit set on pear

Pectobacterium carotovorum subsp. actinidiae associated with canker on pear trees in Brazil

Contact Info

Product

Resources

About