现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2014年
10期
22-22,28
,共2页
杂交稻%泰丰优2098%产量结构%相关分析%通径分析
雜交稻%泰豐優2098%產量結構%相關分析%通徑分析
잡교도%태봉우2098%산량결구%상관분석%통경분석
hybrid rice%Taifeng you 2098%yield components%correlation analysis%path analysis
通过对影响杂交稻组合泰丰优2098产量性状的相关分析、逐步回归分析及通径分析，结果表明：产量构成四要素与产量之间都呈正相关，对产量贡献率依次为有效穗数跃穗粒数跃结率实跃千粒重，有效穗数影响最大，结实率和穗粒数对产量也有较大的影响。因此，生产上在确保足够有效穗的前提下，适度促大穗，增加谷粒充实度提高千粒重，以获得高产。
通過對影響雜交稻組閤泰豐優2098產量性狀的相關分析、逐步迴歸分析及通徑分析，結果錶明：產量構成四要素與產量之間都呈正相關，對產量貢獻率依次為有效穗數躍穗粒數躍結率實躍韆粒重，有效穗數影響最大，結實率和穗粒數對產量也有較大的影響。因此，生產上在確保足夠有效穗的前提下，適度促大穗，增加穀粒充實度提高韆粒重，以穫得高產。
통과대영향잡교도조합태봉우2098산량성상적상관분석、축보회귀분석급통경분석，결과표명：산량구성사요소여산량지간도정정상관，대산량공헌솔의차위유효수수약수립수약결솔실약천립중，유효수수영향최대，결실솔화수립수대산량야유교대적영향。인차，생산상재학보족구유효수적전제하，괄도촉대수，증가곡립충실도제고천립중，이획득고산。
Correlation analysis,stepwise regression analysis and path analysis of yield traits of hybrid rice Taifengyou 2098 were studied. Results indicated that production constitute four elements was positively correlated with production,production contribution rate was in the order of effective spike number>spike grain number>knot rate real>thousand grain heavy,effective spike number had maximal effects,strong rate and Spike grain number also had great effects on production. Therefore,on the premise of ensuring a sufficiently effective spike number in production,moderately large Spike and increased grain plumpness to raise thousand-grain weight and get high yield.
