7個甘蔗新品種在廣西龍州的適應(yīng)性研究

1、    7個甘蔗新品種在廣西龍州的適應(yīng)性研究    黃珍玲 羅晟昇 何洪良 馬文清 劉連軍 唐利球 摘要 目的探討甘蔗新品種在龍州地區(qū)的適應(yīng)性表現(xiàn)，篩選抗逆性強(qiáng)、宿根性好、高產(chǎn)、高糖的甘蔗新品種。方法以roc22 為對照，選擇7個甘蔗品種為參試材料，進(jìn)行區(qū)域試驗，測定甘蔗品種的農(nóng)藝性狀、抗病性、抗逆性表現(xiàn)及甘蔗產(chǎn)量性狀，并對不同甘蔗品種適應(yīng)性進(jìn)行比較。結(jié)果桂糖42號綜合排名第一，產(chǎn)量、蔗糖分、含糖量均排在第一位，在當(dāng)?shù)剡m應(yīng)性最好，適宜推廣;桂糖32號綜合排名第二，產(chǎn)量和含糖量排名第二，但蔗糖分排名第七，比對照低0.55百分點，不建議在當(dāng)?shù)赝茝V;桂糖43號

2、綜合排名第三，產(chǎn)量和含糖量排名第三，但蔗糖分排名第八，比對照低1.00百分點，不建議在當(dāng)?shù)赝茝V;桂糖40號綜合排名第四，產(chǎn)量和含糖量排名第四，蔗糖分排名第三，比對照高0.58百分點，適于在當(dāng)?shù)剡M(jìn)行推廣。桂糖37號綜合適應(yīng)指數(shù)及產(chǎn)量、含糖量略高于對照，蔗糖分略低于對照，可作為增加當(dāng)?shù)仄贩N類型進(jìn)行小面積推廣。桂柳二號、粵糖60號綜合適應(yīng)指數(shù)均低于對照，不建議推廣。結(jié)論該研究可為龍州蔗區(qū)及當(dāng)?shù)卣崽瞧髽I(yè)引種提供理論依據(jù)。關(guān)鍵詞 甘蔗新品種;區(qū)域試驗;適應(yīng)性;龍州s566.1 a0517-6611（2019）11-0042-03doi：10.3969/j.issn.0517-6611.2019.11.0

3、14開放科學(xué)（資源服務(wù)）標(biāo)識碼（osid）：abstract objectiveto explore the adaptability of new sugarcane varieties in longzhou，and to screen new sugarcane varieties with strong stress resistance，good perenniality，high yield and high sugar content.method taking roc22 as the control，7 sugarcane varieties were selected as

4、 the test materials，and the regional experiment was carried out to determine the agronomic traits，disease resistance，stress resistance and sugarcane yield traits of sugarcane varieties，and the adaptability of different sugarcane varieties was compared.resultguitang no.42 ranked first in the comprehe

5、nsive ranking，and its yield，sucrose content and sugar content ranked first.it had the best adaptability in the local area and was suitable for generalization.guitang no.32 ranked second in the overall ranking，yield and sugar content ranked second，but sucrose ranked seventh，0.55 percentage points low

6、er than the control，so it was not recommended to promote in the local area.guitang no.43 ranked third in comprehensive ranking，yield and sugar content ranked third，but sucrose content ranked eighth，which was 1.00 percentage points lower than the control.it was not recommended to be promoted locally.

7、guitang no.40 ranked fourth overall，with the fourth highest yield and sugar content，and the third in sucrose content，0.58 percentage points higher than the control，suitable for local promotion.the comprehensive adaptation index，yield and sugar content of guitang no.37 were slightly higher than those

8、 of the control，and the sucrose content was slightly lower than that of the control.it could be used as a small area extension for increasing the type of local varieties.the comprehensive adaptation index of guiliu no.2 and yuetang no.60 were lower than that of the control，so it was not recommended to popularize them.conclusionthis study could provide a theoretical basis for the  introduction of sugarcane in longzhou sugarcane area and local sugar enterprises.key words sugarcane cultivar;regional trial;adaptability;longzhou county基金項目崇左市科技計劃項目（崇科fb2017003）;國家甘蔗產(chǎn)業(yè)技術(shù)體系