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瓜列當(dāng)在3種寄主作物上的寄生規(guī)律及抗性評(píng)價(jià)

2024-04-29 00:00:00何偉羅文芳周軍輝甘中祥陳曉剛葉仙濤許建軍
新疆農(nóng)業(yè)科學(xué) 2024年2期

doi:10.6048/j.issn.1001-4330.2024.02.017

摘" 要:【目的】研究瓜列當(dāng)在新疆加工番茄、西葫蘆和打瓜上的寄生規(guī)律及主栽品種對(duì)瓜列當(dāng)?shù)目剐郧闆r,為新疆加工番茄、西葫蘆和打瓜田瓜列當(dāng)?shù)姆乐翁峁┛茖W(xué)依據(jù)。

【方法】采用盆栽試驗(yàn)及田間隨機(jī)調(diào)查方法。

【結(jié)果】瓜列當(dāng)在加工番茄、西葫蘆和打瓜播種34~37 d可建立寄生關(guān)系,寄生打瓜上的瓜列當(dāng)在建立寄生關(guān)系5 d后即出土,而寄生于西葫蘆和加工番茄上的瓜列當(dāng)在建立寄生關(guān)系18和21 d后才出土;6月21~22日,加工番茄田瓜列當(dāng)發(fā)生率為42.86%,打瓜田為7.14%,西葫蘆田無(wú)瓜列當(dāng);6月28~29日,加工番茄田瓜列當(dāng)發(fā)生率為45.45%,打瓜田為27.27%,西葫蘆田為25%;7月5~14日,加工番茄田瓜列當(dāng)發(fā)生率為80%,打瓜田為71.43%,西葫蘆田為86.96%;加工番茄品種BVS32瓜列當(dāng)寄生量最少,加工番茄全生育期瓜列當(dāng)鮮重和干重分別為20.97和4.26 g/盆;品種金豐八號(hào)在西葫蘆全生育期中瓜列當(dāng)寄生量最少,瓜列當(dāng)鮮重和干重分別為25.65和5.92 g/盆;打瓜品種中黑中片瓜列當(dāng)寄生量最少,瓜列當(dāng)鮮重和干重分別為5.38和0.78 g/盆。

【結(jié)論】加工番茄、西葫蘆和打瓜適宜防治瓜列當(dāng)時(shí)間是播種后20 d;新疆北疆區(qū)域加工番茄、打瓜和西葫蘆田瓜列當(dāng)最佳防治時(shí)間分別為5月下旬至6月中旬、6月中上旬和6月中下旬;新疆主栽的加工番茄、西葫蘆、打瓜品種中無(wú)對(duì)瓜列當(dāng)免疫的品種,加工番茄品種BVS32、西葫蘆品種金豐八號(hào)和打瓜品種黑中片瓜列當(dāng)寄生量最少,可作為新疆抗瓜列當(dāng)種植品種。

關(guān)鍵詞:瓜列當(dāng);寄主作物;發(fā)生規(guī)律;品種抗性

中圖分類(lèi)號(hào):S453""" 文獻(xiàn)標(biāo)志碼:A""" 文章編號(hào):1001-4330(2024)02-0413-08

收稿日期(Received):

2023-06-11

基金項(xiàng)目:

農(nóng)業(yè)科技創(chuàng)新穩(wěn)定支持項(xiàng)目(xjnkywdzc-2022004);新疆現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系(XJARS-07);吉木薩爾縣列當(dāng)防治技術(shù)研究項(xiàng)目

作者簡(jiǎn)介:

何偉(1980-),男,安徽利辛人,副研究員,研究方向?yàn)槭卟瞬∠x(chóng)害防治,(E-mail)181113882@qq.com

通訊作者:

許建軍(1972-),男,河南孟津人,研究員,研究方向?yàn)槭卟瞬∠x(chóng)害防治,(E-mail)xjj72@163.com

0" 引 言

【研究意義】瓜列當(dāng)造成寄主作物減產(chǎn),威脅瓜類(lèi)作物和加工番茄產(chǎn)業(yè)健康發(fā)展。瓜列當(dāng)在不同寄主作物上發(fā)生規(guī)律及寄主作物對(duì)瓜列當(dāng)抗性均具有差異性。化學(xué)除草劑田間使用劑量及時(shí)間也直接影響列當(dāng)防治效果及寄主作物生長(zhǎng)。分析田間瓜列當(dāng)在不同寄主作物上發(fā)生規(guī)律可為防治技術(shù)的田間應(yīng)用提供科學(xué)依據(jù)。因此,研究瓜列當(dāng)在新疆加工番茄、打瓜和西葫蘆等重要作物上的發(fā)生規(guī)律及寄主作物品種的抗性評(píng)價(jià),對(duì)瓜列當(dāng)防治時(shí)期及栽培品種的選擇具有重要意義。【前人研究進(jìn)展】分枝列當(dāng)(Orobanche aegyptiaca)為一年生全寄生植物[1]。瓜列當(dāng)在世界上分布較廣,可寄生5科植物[2-3]。在新疆瓜列當(dāng)主要危害作物包括甜瓜、西瓜、打瓜、加工番茄、籽用葫蘆和甜葉菊等[4]。遭受瓜列當(dāng)危害西甜瓜輕者減產(chǎn)40%以上,嚴(yán)重者寄生加工番茄減產(chǎn)60%以上,甚至絕產(chǎn)[5]。瓜列當(dāng)完成生活史要經(jīng)過(guò)預(yù)培養(yǎng)、種子萌發(fā)、與寄主植物建立寄生關(guān)系三個(gè)階段。當(dāng)溫度、濕度適宜時(shí),其種子吸水膨脹完成第一個(gè)階段。若無(wú)寄主分泌刺激物,列當(dāng)種子將在7~14 d后開(kāi)始休眠[6]。瓜列當(dāng)出土即已經(jīng)對(duì)作物造成嚴(yán)重為害,因此瓜列當(dāng)種子萌發(fā)至與寄主建立寄生關(guān)系是防治的關(guān)鍵階段。采用誘導(dǎo)[7]、抑制瓜列當(dāng)種子萌發(fā)[8]或芽管生長(zhǎng)[9]的防治策略均需要精準(zhǔn)掌握列當(dāng)田間發(fā)生規(guī)律,尤其是化學(xué)除草劑的使用[10]。培育抗性品種是防治瓜列當(dāng)最有效的方法,因此目前也開(kāi)展了瓜列當(dāng)抗性品種的篩選工作[11-13]。【本研究切入點(diǎn)】由于番茄[14]、豆類(lèi)[15]及辣椒[16]等作物中僅發(fā)現(xiàn)了中等到低水平的復(fù)雜遺傳不完全抗性,增加了作物抗瓜列當(dāng)育種的難度。雖然目前加工番茄、西葫蘆和打瓜尚未見(jiàn)對(duì)瓜列當(dāng)免疫品種的報(bào)道,包括主栽品種中對(duì)瓜列當(dāng)?shù)目剐源嬖诓町愋砸草^少,尤其是針對(duì)新疆加工番茄、打瓜和西葫蘆品種抗性評(píng)價(jià)的報(bào)道很少,需研究瓜列當(dāng)在新疆不同寄主作物上寄生規(guī)律,評(píng)價(jià)寄主作物品種對(duì)瓜列當(dāng)抗性水平。【擬解決的關(guān)鍵問(wèn)題】采用盆栽試驗(yàn)、田間隨機(jī)調(diào)查方法,研究瓜列當(dāng)在加工番茄、打瓜和西葫蘆上寄生規(guī)律及3種寄主作物品種對(duì)瓜列當(dāng)?shù)目剐浴?/p>

1" 材料與方法

1.1" 材 料

材料選擇加工番茄品種11個(gè)、西葫蘆品種5個(gè)和打瓜品種2個(gè)。表1

1.2" 方 法

1.2.1" 盆栽試驗(yàn)觀察瓜列當(dāng)寄生規(guī)律

盆栽土壤采集自新疆農(nóng)業(yè)科學(xué)院安寧渠綜合試驗(yàn)場(chǎng)無(wú)瓜列當(dāng)發(fā)生危害史的試驗(yàn)地。

播種:在(直徑25 cm、高18 cm,底部帶孔)塑料盆中裝入約2/3體積的土壤,將50 mg(約10 000粒)瓜列當(dāng)種子與約200 g細(xì)土在500 L容器中搖勻后均勻撒在土壤表面。

栽培:加工番茄采用基質(zhì)穴盤(pán)育苗,在番茄苗4~5葉期時(shí)移栽,每盆移栽2株苗,10 d后拔除1株弱苗,每盆保留1株壯苗。打瓜和西葫蘆采用直播,每盆播種3粒,3~4片真葉時(shí)拔除弱苗,保留1株壯苗。每種作物栽培90盆。

番茄苗移栽15 d后開(kāi)始調(diào)查瓜列當(dāng)寄生情況,每天拔出3盆番茄苗,記錄番茄根部瓜列當(dāng)結(jié)節(jié)數(shù)量。打瓜和西葫蘆在出苗15 d后開(kāi)始調(diào)查列當(dāng)寄生情況,每天取3盆苗,調(diào)查打瓜和西葫蘆根部瓜列當(dāng)結(jié)節(jié)數(shù)量。圖1

2022年于6月21日~7月14日在吉木薩爾縣二宮鎮(zhèn)、北庭鎮(zhèn)、吉木薩爾鎮(zhèn)、慶陽(yáng)湖鄉(xiāng)、三臺(tái)鎮(zhèn)和老臺(tái)鄉(xiāng)隨機(jī)調(diào)查西葫蘆、打瓜和加工番茄田瓜列當(dāng)寄生。

1.2.2" 田間調(diào)查瓜列當(dāng)在不同作物上危害時(shí)間

分別于6月21日、6月28日和7月5日在吉木薩爾縣二宮鎮(zhèn)、北庭鎮(zhèn)、吉木薩爾鎮(zhèn)、慶陽(yáng)湖鄉(xiāng)、三臺(tái)鎮(zhèn)和老臺(tái)鄉(xiāng)隨機(jī)調(diào)查西葫蘆、打瓜和加工番茄田列當(dāng)寄生情況。每塊田采用十字交叉法隨機(jī)調(diào)查5個(gè)點(diǎn),每個(gè)點(diǎn)調(diào)查15 m2,調(diào)查小區(qū)內(nèi)作物植株數(shù)量及瓜列當(dāng)出土數(shù)量。

根據(jù)單株作物寄生瓜列當(dāng)數(shù)量建立分級(jí)標(biāo)準(zhǔn):0級(jí):無(wú)瓜列當(dāng)寄生;1級(jí):0~0.1株瓜列當(dāng)/株寄主;2級(jí):0.1~0.2株瓜列當(dāng)/株寄主;3級(jí)0.2~0.3株瓜列當(dāng)/株寄主;4級(jí):0.3~0.4株瓜列當(dāng)/株寄主;5級(jí):gt;0.4株瓜列當(dāng)/株寄主。

嚴(yán)重度:0級(jí),無(wú)危害;0~1級(jí),輕度;2~3級(jí),中度;4~5級(jí),重度。

1.2.3" 不同作物品種對(duì)瓜列當(dāng)抗性評(píng)價(jià)

品種抗性評(píng)價(jià)試驗(yàn)在昌吉市新疆農(nóng)業(yè)職業(yè)技術(shù)學(xué)院溫室進(jìn)行。

盆栽土壤:采集昌吉市新疆農(nóng)業(yè)職業(yè)技術(shù)學(xué)院試驗(yàn)田土壤,試驗(yàn)田無(wú)瓜列當(dāng)發(fā)生危害史,瓜列當(dāng)播種和加工番茄、西葫蘆、打瓜栽培方法參照1.2.1。

測(cè)定指標(biāo):番茄苗移栽、西葫蘆和打瓜直播60 d后,采集盆中瓜列當(dāng)植株,稱(chēng)量鮮重,將瓜列當(dāng)植株在烘箱中烘干后,稱(chēng)量干重。番茄苗移栽85 d后拔出番茄植株,沖洗番茄植株根部,記錄番茄根部瓜列當(dāng)結(jié)節(jié)數(shù)量;摘取作物根部瓜列當(dāng),晾干后稱(chēng)量瓜列當(dāng)鮮重和番茄植株鮮重,將瓜列當(dāng)植株在烘箱中烘干后,稱(chēng)量干重。

1.3" 數(shù)據(jù)處理

數(shù)據(jù)統(tǒng)計(jì)采用SPSS16.0數(shù)據(jù)處理系統(tǒng)進(jìn)行數(shù)據(jù)統(tǒng)計(jì)分析。采用LSD法均值的多重比較。

2" 結(jié)果與分析

2.1" 瓜列當(dāng)在不同寄主作物上寄生規(guī)律

2.1.1" 基于盆栽試驗(yàn)的瓜列當(dāng)在不同作物上寄生規(guī)律

研究表明,瓜列當(dāng)在加工番茄、打瓜和西葫蘆上寄生過(guò)程包括在寄主作物根系形成結(jié)節(jié),結(jié)節(jié)發(fā)育生長(zhǎng)和瓜列當(dāng)出土。加工番茄和西葫蘆播種34 d后,其根部即形成瓜列當(dāng)結(jié)節(jié),打瓜根部形成結(jié)節(jié)遲于加工番茄和西葫蘆3 d;寄生打瓜的瓜列當(dāng)出土?xí)r間最早,分別早于西葫蘆和加工番茄10和13 d,寄生西葫蘆的瓜列當(dāng)早于加工番茄3 d。表2,圖1~3

2.1.2" 瓜列當(dāng)在不同作物上寄生規(guī)律

研究表明,6月22~23日,打瓜、西葫蘆和加工番茄等作物田中無(wú)瓜列當(dāng)危害比例為93.18%,輕度危害的占比2.27%,重度危害田占比4.55%,無(wú)中度危害田;6月28~29日,無(wú)瓜列當(dāng)危害田占比69.44%,輕度危害田比例為16.67%,中度危害田占比8.33%,重度危害田占比5.56%;7月5~15日,無(wú)瓜列當(dāng)危害田比例為25%,輕度危害田占比42.31%,中度危害田占比17.31%,重度危害田占比15.38%。表3

6月21~22日,加工番茄田瓜列當(dāng)發(fā)生率最高,為42.86%,其次是打瓜田,為7.14%,西葫蘆和未見(jiàn)瓜列當(dāng)。加工番茄田瓜列當(dāng)寄生強(qiáng)度在0.03~2.16,打瓜田瓜列當(dāng)寄生強(qiáng)度為0.16。瓜列當(dāng)在加工番茄田發(fā)生危害最早且最嚴(yán)重。

6月28~29日,瓜列當(dāng)在加工番茄田發(fā)生率最高,為45.45%,其次是打瓜田,為27.27%,西葫蘆田發(fā)生率為25%。加工番茄田瓜列當(dāng)寄生強(qiáng)度在0.02~2.24,西葫蘆田瓜列當(dāng)寄生強(qiáng)度在0.33~2.50,打瓜田瓜列當(dāng)寄生強(qiáng)度在0.03~1.26。

7月5~14日,西葫蘆田瓜列當(dāng)發(fā)生率最高,為86.96%,其次是加工番茄田為80%,打瓜田為71.43%;加工番茄田瓜列當(dāng)寄生強(qiáng)度在0.28~1.44,打瓜田瓜列當(dāng)寄生強(qiáng)度在0.01~4.61,打瓜田瓜列當(dāng)寄生強(qiáng)度在0.01~7.45。表4

2.2" 作物品種對(duì)瓜列當(dāng)抗性評(píng)價(jià)

研究表明,加工番茄品種中亨氏1015和屯河1776無(wú)瓜列當(dāng)寄生,其次是屯河4850,瓜列當(dāng)鮮重和干重分別為0.68和0.15 g/盆,品種屯河1911瓜列當(dāng)寄生量最多,鮮重和干重分別為62.55和7.43 g/盆;番茄苗移栽85 d后,供試的11個(gè)加工番茄品種中亨氏2206列當(dāng)寄生量最少,瓜列當(dāng)鮮重和干重分別為13.89和3.30 g/盆,其次是1902,瓜列當(dāng)鮮重和干重分別為29.44和4.81 g/盆,屯河4850上瓜列當(dāng)寄生量最多,瓜列當(dāng)鮮重和干重分別為100.56和17.72 g/盆。品種BVS32在加工番茄全生育期中瓜列當(dāng)寄生量最少,瓜列當(dāng)鮮重為20.97 g/盆,其次是品種BVS31,為45.28 g/盆,品種2206瓜列當(dāng)寄生量最多,為138.24 g/盆。圖4,表5

打瓜直播60 d后,供試的2個(gè)打瓜品種中黑中片瓜列當(dāng)寄生量最少,瓜列當(dāng)鮮重和干重分別為5.38和0.78 g/盆,黑小片瓜列當(dāng)鮮重和干重分別為15.65和2.30 g/盆。表6

西葫蘆直播60 d后,供試的5個(gè)西葫蘆品種中金豐8號(hào)上瓜列當(dāng)寄生量最少,瓜列當(dāng)鮮重和干重分別為1.21和0.10 g/盆,其次是金谷10號(hào),瓜列當(dāng)鮮重和干重分別為8.07和0.89 g/盆,品種福祿豐上瓜列當(dāng)寄生量最大,瓜列當(dāng)鮮重和干重分別為16.96和2.32 g/盆;西葫蘆直播85 d后,供試的5個(gè)西葫蘆品種中金豐8號(hào)瓜列當(dāng)寄生量最少,瓜列當(dāng)鮮重和干重分別為13.33和2.32 g/盆,顯著低于其他4個(gè)品種,其次是安祿豐和金谷10號(hào),安特新秀上瓜列當(dāng)寄生量最多,瓜列當(dāng)鮮重和干重分別為71.67和21.45 g/盆。品種金豐8號(hào)在西葫蘆全生育期中瓜列當(dāng)寄生量最少,瓜列當(dāng)鮮重為25.65 g/盆,其次是品種福祿豐,為31.29 g/盆,品種綠寶9號(hào)瓜列當(dāng)寄生量最多,為84.32 g/盆。圖5,表7

3" 討 論3.1

瓜列當(dāng)種子萌發(fā)后與寄主植物建立寄生關(guān)系后即開(kāi)始產(chǎn)生為害,因此瓜列當(dāng)種子萌發(fā)至與寄主植物建立寄生關(guān)系是列當(dāng)防治的最佳時(shí)期。土壤日曬[17]、土壤熏蒸[18]、抗性品種[19]、誘捕作物[20]、土壤微生物[21]及獨(dú)腳金人工類(lèi)似物[22]應(yīng)用等均是在關(guān)鍵時(shí)期對(duì)瓜列當(dāng)進(jìn)行防治。研究中瓜列當(dāng)盆栽試驗(yàn)與加工番茄建立寄生關(guān)系時(shí)間和西葫蘆、打瓜一致,且打瓜寄生的瓜列當(dāng)出土?xí)r間早于加工番茄和西葫蘆。加工番茄在田間采用育苗移栽,田間調(diào)查中加工番茄田瓜列當(dāng)出土最早。田間調(diào)查中打瓜寄生的瓜列當(dāng)出土?xí)r間早于西葫蘆,與盆栽試驗(yàn)結(jié)果一致。研究明確了新疆吉木薩爾縣加工番茄田瓜列當(dāng)于6月中下旬開(kāi)始出土,打瓜和西葫蘆田瓜列當(dāng)6月下旬開(kāi)始出土,7月中上旬,加工番茄、打瓜和西葫蘆田瓜列當(dāng)大量出土。

3.2

采用抗瓜列當(dāng)品種是簡(jiǎn)單、經(jīng)濟(jì)防治方法,但是由于缺乏抗性材料、并且抗性遺傳的可能性較低,致使培育抗性品種非常困難。但簡(jiǎn)單可遺傳的瓜列當(dāng)抗性也已經(jīng)在育種中被鑒定和廣泛應(yīng)用。例如已經(jīng)利用向日葵種質(zhì)資源培育出商業(yè)化的品種,但是隨著區(qū)域內(nèi)向日葵列當(dāng)生理優(yōu)勢(shì)小種的變化,其抗性很快消失[23]。

此外,也在豆類(lèi)作物中發(fā)現(xiàn)了有希望的抗性來(lái)源,并培育出田間表現(xiàn)高水平抗性和優(yōu)良農(nóng)藝性狀的抗性株系[24-25]。目前,雖然尚未見(jiàn)到加工番茄和瓜類(lèi)作物主栽品種對(duì)瓜列當(dāng)具有免疫作用的報(bào)道,但是耐瓜列當(dāng)?shù)钠贩N的選擇對(duì)建立本區(qū)域瓜列當(dāng)綜合防治技術(shù)體系具有重要的作用。甜瓜是新疆瓜列當(dāng)危害嚴(yán)重的寄主作物之一,已經(jīng)對(duì)新疆主栽甜瓜品種抗性進(jìn)行了鑒定與評(píng)價(jià)[26-27]。

4" 結(jié) 論

4.1

加工番茄、西葫蘆和打瓜等作物播種34~37 d可與瓜列當(dāng)建立寄生關(guān)系,而建立寄生關(guān)系后的打瓜上瓜列當(dāng)出土?xí)r間早于西葫蘆,加工番茄、西葫蘆和打瓜直播20 d后適宜采取防治措施。吉木薩爾縣加工番茄田瓜列當(dāng)大量出土?xí)r間在6月下旬至7月上旬,打瓜田瓜列當(dāng)大量出土?xí)r間在6月下旬至7月上旬,西葫蘆田瓜列當(dāng)大量出土?xí)r間在7月中上旬。加工番茄、打瓜和西葫蘆田瓜列當(dāng)最佳防治時(shí)間分別為5月下旬至6月中旬、6月中上旬和6月中下旬。

4.2

目前新疆加工番茄、西葫蘆、打瓜主栽品種中無(wú)對(duì)瓜列當(dāng)免疫的品種,加工番茄品種32、西葫蘆品種金豐8號(hào)和打瓜品種黑中片瓜列當(dāng)寄生量最少,可作為新疆抗瓜列當(dāng)品種種植。

參考文獻(xiàn)(References)

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Parasitism rule of Orobanche Aegyptaica on 3 host crops and resistance evaluation of main cultivars

HE Wei1, LUO Wenfang1, ZHOU Junhui1, GAN Zhongxiang2, CHEN Xiaogang3, YE Xiantao3, XU Jianjun1

(1.Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, MOARA/Institute of Plant Protection,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China; 2. Xinjiang Agricultural Vocational and Technical College, Changji Xinjiang 831100," China; 3.Department of Agriculture and Rural Jimsar County, Jimsar Xinjiang 831700, China)

Abstract:【Objective】 This project aims to clarify the parasitic rule of O.aegyptaica on processing tomato, zucchini and smacking watermelon and resistance of main cultivars in the hope of providing scientific basis for the control of them in Xinjiang.

【Methods】" Pot and field random survey were used to carry out the study.

【Results】" The results of pot experiment showed that the parasitism relationship could be established between 34 to 37 days after sowing the seeds of processed tomatoes, zucchini and watermelon.O.aegyptaica was unearthed after 5 days for the establishment of the parasitism relationship, while zucchini and processed tomatoes respectively were unearthed after 18 and 21 days.Field survey results from June 21 to 22 showed that the incidence rate of O.aegyptaica in the processed tomato field was 42.86%, that in the watermelon field was 7.14%, and no O.aegyptaica in the zucchini field.The incidence of O.aegyptaica in processed tomato fields was 45.45%, that in watermelon fields was 27.27% and that in zucchini fields was 25% from June 28 to 29.The incidence of O.aegyptaica in processed tomato field was 80%, that in watermelon field was 71.43% and that in zucchini field was 86.96% from July 5 to 14.The results of varieties resistance test showed that BVS 32 had the least parasitical content, and the fresh weight and dry weight of O.aegyptaica respectively were 20.97 and 4.26 g/pot., O.aegyptaica parasite amount of Jinfeng No.8 was the least in the whole growth period of zucchini, and the fresh weight and dry weight of O.aegyptaica were 25.65 and 5.92 g/pot, respectively.O.aegyptaica parasite amount of the black medium slice in watermelon varieties were the least, and the fresh and dry weights of O.aegyptaica were 5.38 and 0.78 g/pot, respectively.

【Conclusion】" The suitable control time for processed tomato, zucchini and watermelon is 20 d after sowing.The best control time respectively was from late May to mid-June, early mid-June to mid-late June in processed tomato, zucchini and watermelon fields in northern Xinjiang.Among the main cultivars of processed tomato, zucchini and watermelon planted in Xinjiang, there were no varieties was immune to O.aegyptaica, while processed tomato variety BVS32, zucchini variety Jinfeng No.8 and watermelon variety Heizhongpian have the least amount of parasite, which could be planted as O.aegyptaica resistant varieties in Xinjiang.

Key words:Orobanche aegyptaica; host crop; occurrence rule; varietal resistance

Fund projects: Project of Fund for Stable Support to Agricultural Sci-Tech Renovation(xjnkywdzc-2022004); The Earmarked Fund for XJARS (XJARS-07);Research project on control broomrape technology in Jimusar County

Correspondence author: XU Jianjun(1972-), male, from Mengjin, Henan, researcher, research area:control of vegetables diseases and insect pests,(E-mail)xjj72@163.com

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