CAJ | 학술논문

于2011和2012年，采用再裂区设计，以超高产早稻中嘉早17和淦鑫203为材料，在31．20万蔸/hm2密度下，研究了行/株距比对不同品种产量和上部三叶形态特征的影响及二者的关系。结果表明，两品种施氮处理的产量均显著高于不施氮处理。淦鑫203的产量在不施氮时以 RS/IS5．0（40．0 cm ×8．0 cm）和 RS/IS2．8（30．0 cm×10．7 cm）略高，在施氮时以 RS/IS2．8和 RS/IS2．0（25．0 cm×12．8 cm）显著高于 RS/IS5．0和 RS/IS1．3（20．0 cm×16．0 cm）；而中嘉早17的产量在不施氮时以RS/IS2．0和RS/IS1．3显著高于RS/IS5．0和RS/IS2．8；在施氮时以RS/IS2．8、RSI/S2．0和RS/IS1．3显著高于RS/IS5．0。淦鑫203以RS/SI 2．8和RS/IS2．0，中嘉早17以RS/IS2．0和RS/IS1．3有利于水稻高产和氮高效，而RS/IS5．0不利于水稻高产和氮高效。 RS/IS对倒一叶的开张角和叶面积，倒二叶的基角，倒三叶的基角、叶长、叶宽和叶面积有显著或极显著影响。多元逐步回归分析表明，淦鑫203倒二叶的开张角、叶宽和倒三叶的叶面积与产量正相关，而中嘉早17倒二叶的基角、叶宽和倒三叶的开张角、叶宽与产量正相关。
우2011화2012년，채용재렬구설계，이초고산조도중가조17화감흠203위재료，재31．20만두/hm2밀도하，연구료행/주거비대불동품충산량화상부삼협형태특정적영향급이자적관계。결과표명，량품충시담처리적산량균현저고우불시담처리。감흠203적산량재불시담시이 RS/IS5．0（40．0 cm ×8．0 cm）화 RS/IS2．8（30．0 cm×10．7 cm）략고，재시담시이 RS/IS2．8화 RS/IS2．0（25．0 cm×12．8 cm）현저고우 RS/IS5．0화 RS/IS1．3（20．0 cm×16．0 cm）；이중가조17적산량재불시담시이RS/IS2．0화RS/IS1．3현저고우RS/IS5．0화RS/IS2．8；재시담시이RS/IS2．8、RSI/S2．0화RS/IS1．3현저고우RS/IS5．0。감흠203이RS/SI 2．8화RS/IS2．0，중가조17이RS/IS2．0화RS/IS1．3유리우수도고산화담고효，이RS/IS5．0불리우수도고산화담고효。 RS/IS대도일협적개장각화협면적，도이협적기각，도삼협적기각、협장、협관화협면적유현저혹겁현저영향。다원축보회귀분석표명，감흠203도이협적개장각、협관화도삼협적협면적여산량정상관，이중가조17도이협적기각、협관화도삼협적개장각、협관여산량정상관。
In 2011 and 2012 ,using a split-plot design ,with super-high-yielding early rice of Zhongjiazao 17 and Ganxin 203 as materials,in the same planting density of 31.20×104 hills/hm2,the effects of RS/IS (ra-tio of row spacing to intrarow row spacing ) on yield,top three leaves morphological features and its relationship to them.The results showed that ,the yield of the treatment with nitrogen application of two varieties was signifi-cantly higher than that of the treatment without nitrogen application .The yield of Ganxin 203 with RS/IS of 5.0 (40.0 cm×8.0 cm) and 2.8 (30.0 cm×10.7 cm) without nitrogen application was higher than that with RS/ISof 2.0 (25.0 cm×12.8 cm) and 1.3 (20.0 cm×16.0 cm),and that with RS/IS of 2.8 and 2.0 with nitrogen ap-plication was significantly higher than that with RS/IS of 5.0 and 1.3.The yield of Zhongjiazao with RS/IS of 2.0 and 1.3 without nitrogen application was higher than that with RS/IS of 5.0 and 2.8,and that with RS/IS of 2.8,2.0 and 1.3 with nitrogen application was significantly higher than that with RS/IS of 5.0.Ganxin 203 with RS/IS of 2.8 and 2.0,and Zhongjiazao 17 with RS/IS of 2.0 and 1.3 were advantageous to high yield and nitro-gen use efficiency ,but RS/IS of 5.0 was not .RS/IS had significant or extremely significant influence of on the opening angle and area of flag leaves ,basal angle of the second leaves from top ,basal angle ,length ,width and area of the third leaves from top .Multiple stepwise regression analysis showed that the yield had a positive cor-relation with opening angle and width of the second leaves from top and area of the third leaves from top of Ganxin 203,and with basal angle and width of the second leaves from top and opening angle and width of the third leaves from top of zhongjiazao 17.