Fruit drop in two kiwifruit varieties and the use of two Bacillus-based biofungicides

Q3 Agricultural and Biological Sciences

New Zealand Plant Protection Pub Date : 2019-07-27 DOI:10.30843/NZPP.2019.72.288

S. Casonato

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引用次数: 0

Abstract

Recently, fruit drop in two green varieties of kiwifruit (Actinidia deliciosa; VarA and VarB) has increased towards the harvest date. The efficacy of two biofungicides, applied post-flowering, to ameliorate the effects of early fruit drop in VarA and VarB during the 2017–18 growing season was tested. Treatments were applied to a single bay, with buffer bays and rows adjacent. Treatments were two different Bacillus-based biofungicide products; Serenade® Max (a.i. B. subtilis QST713 strain) and Triple-X® (a.i. B. amyloliquefaciens BS 1b). There was an untreated control. All fruits in the canopy, within the treated bay, were counted and recorded at 4-weekly intervals, over 5 months until harvest. At the VarA site, there was no statistical difference (P>0.1) in the percentage of fruit drop between the control (7%), Triple-X® (5%) and Serenade® Max (10%) treated vines. At the VarB site, fruit drop differed statistically (P<0.1) between Triple-X® treated vines (5%) and the control (10.5%), with Serenade® Max treated vines (6.5%) having intermediate fruit drop. The use of Triple-X® may be an option to assist with reducing fruit drop in kiwifruit.

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两种猕猴桃品种的落果及两种芽孢杆菌类生物杀菌剂的使用

最近，猕猴桃(Actinidia deliciosa;VarA和VarB)随着收获日期的临近而增加。研究了花后施用两种生物杀菌剂改善2017-18生长季VarA和VarB早落果的效果。处理应用于单个海湾，缓冲海湾和相邻的行。用两种不同的芽孢杆菌类生物杀菌剂处理;Serenade®Max (a.i b.s urtilis QST713菌株)和Triple-X®(a.i b.s amyloliquefaciens BS 1b)。有一个未经治疗的对照组。在5个月的时间里，每隔4周对处理区内树冠上的所有果实进行计数和记录。在VarA位点，对照(7%)、Triple-X®(5%)和Serenade®Max(10%)处理葡萄的落果率无统计学差异(P>0.1)。在VarB位点，Triple-X®处理葡萄藤(5%)和对照葡萄藤(10.5%)的落果量差异有统计学意义(P<0.1)， Serenade®Max处理葡萄藤(6.5%)的落果量中等。使用Triple-X®可能是帮助减少猕猴桃果实掉落的一种选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

New Zealand Plant Protection Agricultural and Biological Sciences-Insect Science

CiteScore

1.10

自引率

0.00%

发文量

期刊介绍： New Zealand Plant Protection is the journal of the New Zealand Plant Protection Society. It publishes original research papers on all aspects of biology, ecology and control of weeds, vertebrate and invertebrate pests, and pathogens and beneficial micro-organisms in agriculture, horticulture, forestry and natural ecosystems of relevance to New Zealand.