不同氮肥水平下杂交粳稻滇杂35产量分析  

The Yield Analysis of Hybrid Japonica Rice Dianza35 under Different Nitrogen Application Levels

作　　者：金寿林[1] 王石华 文建成[1] 谭学林[1] 贺冰晶[1] 

机构地区：[1]云南农业大学稻作研究所,云南昆明650201 [2]丽江师范高等专科学校生命科学系,云南丽江674100

出　　处：《云南农业大学学报（自然科学版）》2012年第4期551-555,共5页Journal of Yunnan Agricultural University:Natural Science

基　　金：科技部科技成果转化项目(2009GB2F300346);云南省科技攻关项目(2009BB007)

摘　　要：在不同施氮(0,150,300,450 kg/hm2)条件下,对滇杂35及其亲本(母本合系42-5A,父本南34)以及全国超级稻品种楚粳27的产量进行分析。结果表明:在土壤供氮水平较高条件下(土壤碱解氮154 mg/kg),随施氮量的增加,滇杂35及合系42-5B的产量明显下降(P<0.05),南34的产量显著增加(P<0.05),楚粳27的产量差异不明显。在不施氮和施氮量150 kg/hm2的条件下,滇杂35的产量表现均优于其余供试材料,特别是不施氮条件下产量差异尤为明显,较合系42-5B,南34和楚粳27分别高31.44%,38.56%,24.77%。此结果与滇杂35多年的推广生产结果一致,表明滇杂35特别在适合土壤氮肥较低的地区推广种植。The yields of Dianza 35 and its parents （ Hexi 42 -5 B and Nan 34） under different nitrogen levels （0, 150 , 300, 450 kg,/hm2） were analyzed; the yields of Chujing 27 which is super hybrid rice was also analyzed. The results showed that the yields of Dianza 35 and Hexi 42 -5B decreased significantly with the increase of nitrogen fertilizer rate under 154 mg/kg of soil available nitrogen （N） （ P 〈 0.05 ） and the yield of Nan 34 increased significantly with the increase of nitrogen fertilizer rates under this environment （P 〈 0. 05 ） , only Chujing 27 had no changes. The yield of Dianza 35 obvious- ly higher than those varieties under no N-input conditions or less N-input conditions of 150 kg/hm2. The difference was especially obvious under no N-input conditions, the yield of Dianza 35 was higher by 31.44% , 38.56% and 24.77% than Hexi 42 -5B, Nan 34 and Chujing 27, respectively. These results are in agreement with extension production of Dianza 35. Dianza 35 is suitable for extension and planting under areas of less nitrogen fertility.

关 键 词：滇型杂交粳稻 施氮水平 产量 

分 类 号：S511.062[农业科学—作物学]