王軍威 鄒俊 甄才紅



摘要 ? ?本文對2017—2018年度長江中游區(qū)11個國家油菜新品種的農(nóng)藝性狀與單株產(chǎn)量進(jìn)行灰關(guān)聯(lián)熵分析。結(jié)果表明,各性狀與單株產(chǎn)量的熵關(guān)聯(lián)度為硫苷0.979 3、菌核病發(fā)病率0.980 8、菌核病發(fā)病指數(shù)0.980 6、株高0.986 3、有效分枝數(shù)0.973 4、單株產(chǎn)量0.989 4、千粒重0.980 7、角粒數(shù)0.984 8、單株有效角數(shù)0.987 6;熵關(guān)聯(lián)順序為單株產(chǎn)量、單株有效角數(shù)、株高、角粒數(shù)、菌核病發(fā)病率、千粒重、菌核病發(fā)病指數(shù)、硫苷、有效分枝數(shù),本結(jié)果可為長江中游區(qū)雜交油菜品種選育指明方向。
關(guān)鍵詞 ? ?雜交油菜;品種;灰關(guān)聯(lián)熵分析;農(nóng)藝性狀;產(chǎn)量;長江中游區(qū)
中圖分類號 ? ?S565.4 ? ? ? ?文獻(xiàn)標(biāo)識碼 ? ?A
文章編號 ? 1007-5739(2020)15-0001-02 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 開放科學(xué)(資源服務(wù))標(biāo)識碼(OSID)
Abstract ? ?Grey relation entropy analysis was carried out on the yields and correlated characters of 11 new national rape varieties in the middle reaches of Yangtze River from 2017 to 2018. The results showed that the entropy relation grade between each character and yield was as follows: the thioglycoside was 0.979 3, the incidence of sclerotinia was 0.980 8, the index of sclerotinia was 0.980 6, the plant height was 0.986 3, the effective branch number was 0.973 4, the yield per plant was 0.989 4, the 1 000-grain weight was 0.980 7, the seed number per pod was 0.984 8, and the effective pod number per plant was 0.987 6. The entropy relation order was yield per plant, effective pod number per plant, plant height, seed number per pod, incidence of sclerotinia, 1 000-grain weight, index of sclerotinia, thioglycoside, effective branch number. Accordingly, the breeding direction of hybrid rapeseed varieties in the middle reaches of the Yangtze River can be determined.
Key words ? ?hybrid rape; variety; grey relation entropy analysis; agronomic character; yield; middle reaches of Yangtze River
我國是油菜生產(chǎn)大國,種植面積和油菜籽產(chǎn)量約占全球的1/3。雙低雜交油菜是我國長江流域重要的越冬作物,近年來,由于農(nóng)戶種植油菜品種習(xí)慣多年不變,品種退化混雜嚴(yán)重,降低了油菜的品質(zhì)和抗性。因此,選育多抗、優(yōu)質(zhì)、高產(chǎn)雜交油菜新品種成為了育種工作的主要目標(biāo)。本文運(yùn)用灰色系統(tǒng)理論,把灰關(guān)聯(lián)分析和熵有機(jī)結(jié)合起來,建立了基于灰關(guān)聯(lián)熵理論的產(chǎn)量與相關(guān)性狀影響因素的分析模型[1],以明確性狀對油菜產(chǎn)量的影響程度。
1 ? ?材料與方法
1.1 ? ?試驗地概況
試驗在信陽市農(nóng)業(yè)科學(xué)院試驗基地進(jìn)行,供試地塊土質(zhì)為白散土,土壤含有機(jī)質(zhì)24.6 g/kg、水解氮68.5 mg/kg、速效磷18.5 mg/kg、速效鉀87.3 mg/kg。
1.2 ? ?供試材料
試驗品種為2017—2018年度長江中游區(qū)國家油菜新品種區(qū)域試驗參試品種,共11個,分別是創(chuàng)油雜16號、中油769、川油66、灃油827、華油雜82、利油雜178、黔油雜1718、贛油雜702、灃油729、華油雜12、陽光165,分別以K1、K2、K3、K4、K5、K6、K7、K8、K9、K10、K11表示。……