[Objectives]This study was conducted to screen rice varieties suitable for planting in Nanchang City with high quality,high yield,good yield,and strong disease and stress resistance.[Methods]Seven new late indica hybr...[Objectives]This study was conducted to screen rice varieties suitable for planting in Nanchang City with high quality,high yield,good yield,and strong disease and stress resistance.[Methods]Seven new late indica hybrid rice combinations with good quality bred in Jiangxi Province in recent years and seven new late indica hybrid rice combinations with good quality bred by Nanchang Academy of Agricultural Sciences were introduced,and compared with Tianyouhuazhan as a control.[Results]The rice quality and taste of the tested combinations were better than those of the control.Among the tested combinations,Yuliangyoufuxiangzhan,Xintaiyousizhan,Yuxiangliangyou No.8 and Guangheyou 33 had good stress resistance,high yield and good rice quality.[Conclusions]This study provides a theoretical basis for the selection and breeding of new rice varieties in Nanchang City.展开更多
Hybrid rice combination Xieyou 46 was first bred by combining CMS line Xieqingzao A with restorer line Milyang 46 at CNRRI in 1983. It can be used as single season or late season new indica hybrid rice combination. Ha...Hybrid rice combination Xieyou 46 was first bred by combining CMS line Xieqingzao A with restorer line Milyang 46 at CNRRI in 1983. It can be used as single season or late season new indica hybrid rice combination. Having passed provincial level yield trials in the following years, it was released in 1990 with the permission of Zhejiang Provincial Government, later on recommended as one of the top commercial hybrid rice combination by China State Science and Technology Commission. By the end of 1992, Xieyou 46 has been planted as a late season or single season hybrid ricc combination along the middle and lower reaches of the Yangtze River, and the planting area has reached 3.35 million ha. It has become one of the most important late season hybrid rice combinations in Zhejiang Province. Characteristics of Xieyou 46: Xieyou 46 has a suitable growth duration of 125-130 d as late season rice or 127-134 d as single season rice, 2-3 d shorter than those of Shanyou 6. It bas a compact plant type, high tilleri展开更多
Hybrid rice Shan-You 10 was first madein 1982 by combining Zhen-Shan 97A,a wildcytoplasmic male sterile line used widely inChina,with Milyang 46 introduced from IRRIin 1981.In the following years,this combi-nation was...Hybrid rice Shan-You 10 was first madein 1982 by combining Zhen-Shan 97A,a wildcytoplasmic male sterile line used widely inChina,with Milyang 46 introduced from IRRIin 1981.In the following years,this combi-nation was tested and passed through differentformal tests including yield potential tests,展开更多
用正交试验设计对优质杂交稻 D 优3232进行了不同栽插密度、苗数、施肥方式试验,分析不同栽培因素及水平对分蘖成穗、主要经济性状及产量的影响。结果表明,实行16.7cm×20cm 规格栽插、每穴插3粒谷苗、采用底肥+分蘖肥+穗肥的施肥方...用正交试验设计对优质杂交稻 D 优3232进行了不同栽插密度、苗数、施肥方式试验,分析不同栽培因素及水平对分蘖成穗、主要经济性状及产量的影响。结果表明,实行16.7cm×20cm 规格栽插、每穴插3粒谷苗、采用底肥+分蘖肥+穗肥的施肥方式,能充分协调植株个体与群体的关系,增大低位分蘖和大分蘖成穗比例,穗型较大,着粒较多,结实率较高,同时群体穗数多,获得的产量最高;在密度、苗数、施肥3因素中,以施肥对产量作用最大,其次为苗数,密度对产量影响最小;不同施肥方式中,以底肥十分蘖肥+穗肥的施肥方式产量最高。展开更多
基金Supported by Demonstration of Green and High-efficiency Cultivation Techniques for High-quality Rice(GCJ[2011]250)。
文摘[Objectives]This study was conducted to screen rice varieties suitable for planting in Nanchang City with high quality,high yield,good yield,and strong disease and stress resistance.[Methods]Seven new late indica hybrid rice combinations with good quality bred in Jiangxi Province in recent years and seven new late indica hybrid rice combinations with good quality bred by Nanchang Academy of Agricultural Sciences were introduced,and compared with Tianyouhuazhan as a control.[Results]The rice quality and taste of the tested combinations were better than those of the control.Among the tested combinations,Yuliangyoufuxiangzhan,Xintaiyousizhan,Yuxiangliangyou No.8 and Guangheyou 33 had good stress resistance,high yield and good rice quality.[Conclusions]This study provides a theoretical basis for the selection and breeding of new rice varieties in Nanchang City.
文摘Hybrid rice combination Xieyou 46 was first bred by combining CMS line Xieqingzao A with restorer line Milyang 46 at CNRRI in 1983. It can be used as single season or late season new indica hybrid rice combination. Having passed provincial level yield trials in the following years, it was released in 1990 with the permission of Zhejiang Provincial Government, later on recommended as one of the top commercial hybrid rice combination by China State Science and Technology Commission. By the end of 1992, Xieyou 46 has been planted as a late season or single season hybrid ricc combination along the middle and lower reaches of the Yangtze River, and the planting area has reached 3.35 million ha. It has become one of the most important late season hybrid rice combinations in Zhejiang Province. Characteristics of Xieyou 46: Xieyou 46 has a suitable growth duration of 125-130 d as late season rice or 127-134 d as single season rice, 2-3 d shorter than those of Shanyou 6. It bas a compact plant type, high tilleri
文摘Hybrid rice Shan-You 10 was first madein 1982 by combining Zhen-Shan 97A,a wildcytoplasmic male sterile line used widely inChina,with Milyang 46 introduced from IRRIin 1981.In the following years,this combi-nation was tested and passed through differentformal tests including yield potential tests,
文摘用正交试验设计对优质杂交稻 D 优3232进行了不同栽插密度、苗数、施肥方式试验,分析不同栽培因素及水平对分蘖成穗、主要经济性状及产量的影响。结果表明,实行16.7cm×20cm 规格栽插、每穴插3粒谷苗、采用底肥+分蘖肥+穗肥的施肥方式,能充分协调植株个体与群体的关系,增大低位分蘖和大分蘖成穗比例,穗型较大,着粒较多,结实率较高,同时群体穗数多,获得的产量最高;在密度、苗数、施肥3因素中,以施肥对产量作用最大,其次为苗数,密度对产量影响最小;不同施肥方式中,以底肥十分蘖肥+穗肥的施肥方式产量最高。
