贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
10期
91-94
,共4页
陶文琴%许镇健%黄丽宜%缪绅裕%杨礼香%王厚麟%陈健辉
陶文琴%許鎮健%黃麗宜%繆紳裕%楊禮香%王厚麟%陳健輝
도문금%허진건%황려의%무신유%양례향%왕후린%진건휘
阔叶丰花草%入侵植物%化感效应%茄科%种子萌发率
闊葉豐花草%入侵植物%化感效應%茄科%種子萌髮率
활협봉화초%입침식물%화감효응%가과%충자맹발솔
Borreria latifolia%alien invasive plant%allelpathic effect%Solanaceae%seed germination
为探明入侵植物阔叶丰花草对茄科作物种子萌发和幼苗生长的影响,采用种子萌发与生物测定法,测定比较了阔叶丰花草不同浓度水提液处理番茄、茄子和辣椒种子的萌发率、幼苗的根长及茎长。结果表明:番茄和茄子的发芽速度指数随处理浓度上升而显著降低;番茄种子的萌发率略低于对照,均在93.33%以上;茄子和辣椒种子的萌发率均随水提液浓度的上升而降低,14 d 时分别在70%以上和66.67%以上;各浓度水提液番茄和茄子的根长显著低于对照,辣椒除高浓度外,根长均长于对照;培养7 d 时番茄的茎长短于对照,14 d 时均长于对照。结论:阔叶丰花草对番茄的综合化感效应表现为抑制作用;低浓度的水提液对茄子综合化感效应表现为促进作用,高浓度为抑制作用;辣椒则表现为抑制转变为促进,表现出一定的适应性。
為探明入侵植物闊葉豐花草對茄科作物種子萌髮和幼苗生長的影響,採用種子萌髮與生物測定法,測定比較瞭闊葉豐花草不同濃度水提液處理番茄、茄子和辣椒種子的萌髮率、幼苗的根長及莖長。結果錶明:番茄和茄子的髮芽速度指數隨處理濃度上升而顯著降低;番茄種子的萌髮率略低于對照,均在93.33%以上;茄子和辣椒種子的萌髮率均隨水提液濃度的上升而降低,14 d 時分彆在70%以上和66.67%以上;各濃度水提液番茄和茄子的根長顯著低于對照,辣椒除高濃度外,根長均長于對照;培養7 d 時番茄的莖長短于對照,14 d 時均長于對照。結論:闊葉豐花草對番茄的綜閤化感效應錶現為抑製作用;低濃度的水提液對茄子綜閤化感效應錶現為促進作用,高濃度為抑製作用;辣椒則錶現為抑製轉變為促進,錶現齣一定的適應性。
위탐명입침식물활협봉화초대가과작물충자맹발화유묘생장적영향,채용충자맹발여생물측정법,측정비교료활협봉화초불동농도수제액처리번가、가자화랄초충자적맹발솔、유묘적근장급경장。결과표명:번가화가자적발아속도지수수처리농도상승이현저강저;번가충자적맹발솔략저우대조,균재93.33%이상;가자화랄초충자적맹발솔균수수제액농도적상승이강저,14 d 시분별재70%이상화66.67%이상;각농도수제액번가화가자적근장현저저우대조,랄초제고농도외,근장균장우대조;배양7 d 시번가적경장단우대조,14 d 시균장우대조。결론:활협봉화초대번가적종합화감효응표현위억제작용;저농도적수제액대가자종합화감효응표현위촉진작용,고농도위억제작용;랄초칙표현위억제전변위촉진,표현출일정적괄응성。
The germination rate,root and stem length of tomato,eggplant and pepper seeds treated with different concentration of B.latifolia water extract were determined by seed germination and biological determination methods to study the effects of alien invasive B.latifolia on seed germination and growth of seedlings of Solanaceae crops.The results showed that:1 )The germination rate index of tomato and eggplant decreases with increase of B.latifolia water extract concentration significantly;2) The germination rate of tomato seeds is lower than CK but the seed germination of different treatments is above 93.33%;3 )The seed germination rate of eggplant and pepper decreases with increase of B. latifolia water extract concentration and is above 70% and above 66.67% after 14 d respectively;4)The root length of tomato and eggplant treated with different concentration of B.latifolia water extract is lower than CK significantly,except for pepper under the higher concentration;5)The stem length of tomato seedlings after 7d is shorter than CK but the stem length of tomato seedlings after 14d is higher than CK.The integrated allelopathic effect of B.latifolia on tomato is the inhibiting effect.The integrated allelopathic effect of B.latifolia with lower concentration and higher concentration is the promoting effect and inhibiting effect separately.Pepper shows the certain adaptability to B.latifolia.