Biofumigation Efficacy of Spider Plant (Cleome gynandra L.) Accessions on Nematode Control in Tuberose (Polianthes tuberosa L.)  

作　　者：Stella Jerono Keter Samuel Nyalala Joshua Ogweno 

机构地区：[1]Egerton University,Department of Crops,Horticulture,and Soils P.O.Box 536,Egerton,Kenya

出　　处：《NASS Journal of Agricultural Sciences》2020年第2期15-23,共9页NASS农业科学杂志（英文）

摘　　要：Tuberose(Polianthes tuberosa L.)is a perennial summer flower grown by smallholders in Kenya for export.However,its production and export volumes have declined drastically due to nematodes infestation.This study evaluated the effect of Cleome gynandra accessions on nematode management on tuberose.Experiment was carried out at Egerton University,Kenya using a randomized complete block design with four replications.The treatments were C.gynandra namely“Simlaw”,“Egerton”,“Taastrup”,“PS”and“IP8”,applied at 6 kg/m^(2) and compared with Brassica napus,solarization and untreated control.Data was collected on growth and yield parameters,nematode infestation and quality of tuberose.Data collected was subjected to analysis of variance at p≤0.05 and means separated using Tukey’s test.Biofumigation with Cleome gynandra accessions helped to reduce nematode population by 34%,gall numbers by 83% and galling index by 96%when compared with the control.Use of biofumigation helped to improve plant height and leaf number of tuberoses by 16% and 87%,respectively,when compared with the control.Use of biofumigation helped to improve spike length by 32%,marketable spikes by 80%,and flower yield by 90% and reduced nonmarketable spikes by 95% when compared with the control.Based on the above results,use of Cleome gynandra accessions and other biofumigants such as rape seed can be used to manage nematodes and improve growth,yield and quality of tuberose.

关 键 词：Nematode management Biofumigantion Flower growth Flower quality 

分 类 号：S51[农业科学—作物学]