不同种植方式下磷素营养对陆稻和水稻米质的影响  

Effects of Phosphorous on Grain Quality of Upland and Paddy Rice under Different Cultivations

作　　者：张亚洁[1] 华晶晶[1] 李亚超[1] 陈莹莹[1] 杨建昌[1] 

机构地区：[1]扬州大学江苏省作物遗传生理重点实验室,江苏扬州225009

出　　处：《中国水稻科学》2011年第4期399-406,共8页Chinese Journal of Rice Science

基　　金：国家自然科学基金重大国际合作项目(31061140457);国家科技攻关计划资助项目(2006BAD02A13-3-2);江苏省自然科学基金资助项目(BK2009005)

摘　　要：以粳型陆稻中旱3号和粳型水稻扬辐粳8号为材料,设置裸地旱作和水作2种种植方式及3个磷素(P2O5)水平:低磷(LP,45kg/hm2)、常磷(NP,90kg/hm2)和高磷(HP,135kg/hm2),比较了陆稻和水稻米质的差异。旱作条件下,随着施P量的增加,陆稻和水稻产量均随之增加;水作条件下,HP下陆稻的产量较NP增加,水稻的产量HP较NP减少,但差异均不显著。旱作条件下,中旱3号LP水平下整精米率、外观品质和蒸煮食味品质表现较好,扬辐粳8号(NP水平下外观品质表现较好)与中旱3号基本一致;水作条件下,中旱3号LP水平下整精米率较高,NP水平下蒸煮食味品质较好,扬辐粳8号与中旱3号基本一致,但外观品质表现不一。旱作使陆稻和水稻的整精米率提高,外观品质改善,水稻蒸煮品质和营养品质提高。与水稻相比,陆稻的加工品质、营养品质和食味品质较优。表明陆稻和水稻的米质对种植方式和磷素的互作响应有差异。To investigate the responses of rice quality of upland rice and paddy rice to phosphorous（P） fertilizer and the interaction between cultivation methods and P levels,a japonica upland rice Zhonghan 3 and a japonica paddy rice Yangfujing 8 were grown under both moist cultivation（MC,contro1） and bare dry-cultivation（DC） with three P levels,low amount of P（LP,45 kg/hm2）,normal amount of P（NP,90 kg/hm2）,and high amount of P（HP,135 kg/hm2）.With the increase of P levels,grain yields of both upland and paddy rice were increased under DC.There was no significant difference in grain yield between HP and NP for the upland and paddy rice,though upland rice had a little increase and paddy rice had a little decrease in yield.Under DC and at LP,Zhonghan 3 showed higher head milled rice rate,better appearance quality and cooking and eating quality than at HP or NP.Yangfujing 8 was similar with Zhonghan 3 except that the former showed better appearance quality at NP.Under MC,Zhonghan 3 showed higher head milled rice rate at LP and better cooking and eating quality at NP.Yangfujing 8 was similar with Zhonghan 3 except that the appearance quality was different.DC could improve head milled rice rate and appearance quality for both upland and paddy rice,as well as cooking quality and nutrient quality for paddy rice.Compared with paddy rice,upland rice showed better processing quality,nutrient quality and eating quality.The results suggest that the response to cultivation methods and phosphorus levels varies largely between upland rice and paddy rice.

关 键 词：陆稻 水稻 旱作 磷 米质 

分 类 号：S511[农业科学—作物学]