干旱地区农业研究
榦旱地區農業研究
간한지구농업연구
AGRICULTURAL RESEARCH IN THE ARID AREAS
2014年
2期
213-216,238
,共5页
刘天鹏%董孔军%何继红%任瑞玉%张磊%杨天育
劉天鵬%董孔軍%何繼紅%任瑞玉%張磊%楊天育
류천붕%동공군%하계홍%임서옥%장뢰%양천육
糜子%土壤水分%农艺性状%产量
糜子%土壤水分%農藝性狀%產量
미자%토양수분%농예성상%산량
broomcorn millet%soil moisture%agronomic traits%yield
在年降雨量不足40 mm 的甘肃省敦煌市,以陇糜10号为指示品种,研究了不同生育阶段灌水处理对糜子主要农艺性状及产量的影响,应用灰色关联度法分析了主要农艺性状与产量的相关性。结果表明:水分亏缺延迟糜子成熟,延长了拔节至抽穗阶段的生长发育天数;生育期内任何阶段水分亏缺都降低了糜子株高、千粒重和产量,主穗长缩短,主茎粗变细,抽穗灌浆期水分亏缺极显著地影响单株穗重、单株粒重及单位面积穗数。不同土壤水分条件下,糜子单株粒重、单株穗重、千粒重、株高、主茎粗、主穗长、单位面积穗数都与糜子产量相关性较大。
在年降雨量不足40 mm 的甘肅省敦煌市,以隴糜10號為指示品種,研究瞭不同生育階段灌水處理對糜子主要農藝性狀及產量的影響,應用灰色關聯度法分析瞭主要農藝性狀與產量的相關性。結果錶明:水分虧缺延遲糜子成熟,延長瞭拔節至抽穗階段的生長髮育天數;生育期內任何階段水分虧缺都降低瞭糜子株高、韆粒重和產量,主穗長縮短,主莖粗變細,抽穗灌漿期水分虧缺極顯著地影響單株穗重、單株粒重及單位麵積穗數。不同土壤水分條件下,糜子單株粒重、單株穗重、韆粒重、株高、主莖粗、主穗長、單位麵積穗數都與糜子產量相關性較大。
재년강우량불족40 mm 적감숙성돈황시,이롱미10호위지시품충,연구료불동생육계단관수처리대미자주요농예성상급산량적영향,응용회색관련도법분석료주요농예성상여산량적상관성。결과표명:수분우결연지미자성숙,연장료발절지추수계단적생장발육천수;생육기내임하계단수분우결도강저료미자주고、천립중화산량,주수장축단,주경조변세,추수관장기수분우결겁현저지영향단주수중、단주립중급단위면적수수。불동토양수분조건하,미자단주립중、단주수중、천립중、주고、주경조、주수장、단위면적수수도여미자산량상관성교대。
With Longmi10 as test cultivar ,effect of irrigation treatment at different growing stages on main morpho -logical characteristics and yield of broom - corn millet was studied at DunHuang city with an annual rainfall less than 40 mm .The results showed that both the broomcorn millet maturation and the period from jointing stage to heading stage were prolonged under deficit irrigation .The plant height ,1000 grains weight ,and grain yield were reduced ,the main spike length was shortened ,and main stem diameter was decreased .In addition ,spike weight ,grain weight ,and spike number were materially affected by water deficit at heading and filling stages .There existed positive correlation between grain weight ,panicle weight ,plant height ,main stem diameter ,main panicle length ,spike number ,and grain yield un-der different soil water conditions .