早稻-再生稻模式下适宜机收低留桩品种筛选与再生力评价  

Variety Screening of the Early-mature Rice and Ratooning Rice with Low Stubble Harvested by Machine and Its Regeneration Capacity Evaluation

作　　者：左生力 ZUO Sheng-li(Longyan Station of Agricultural Technology Extension, Longyan, Fujian 364000, China)

机构地区：[1]龙岩市农业技术推广站,福建龙岩364000

出　　处：《福建农业科技》2022年第4期18-23,共6页Fujian Agricultural Science and Technology

基　　金：福建省现代农业水稻产业技术体系建设(2019-2020年);龙岩市科技计划项目(2019LYF9004)。

摘　　要：为筛选出适宜早稻-再生稻模式的机收低留桩再生稻新品种,以中浙优8号等水稻品种为供试材料,采用单因素随机区组设计,对各参试品种的生育期、产量、抗病性、抗倒伏性等进行了综合考察。结果表明:中浙优8号两季总产量最高,达15281.11 kg·hm^(-2),且抗性好、生育期适中,可在永定区以南低海拔地区重点推广种植。中浙优H7两季总产量位居第2,为15149.93 kg·hm^(-2),但生育期长、病害抗性较弱,建议在永定区以南低海拔地区稻瘟病和稻曲病轻发区适当推广种植。晶两优华占、隆两优534两季总产量分别为14620.07、14602.07 kg·hm^(-2),且生育期适中、抗性好,可在永定区以南低海拔地区推广种植。野香优699两季总产量为13688.96 kg·hm^(-2),但生育期长、稻曲病抗性较弱,建议谨慎推广。川种优3877两季总产量为13601.50 kg·hm^(-2),产量相对一般,但生育期比其他参试品种明显偏短,且抗性好,作机收低留桩再生稻种植比其他参试品种有着更广的适宜区域,可适当推广。野香优6813再生季产量较高,但两季总产量较低,且稻曲病抗性弱,泰两优217、晶两优1212和昌两优8号两季总产量低,这4个品种不建议在龙岩市作机收低留桩再生稻种植。In order to screen out the new varieties of ratooning rice with low stubble harvested by machine which were suitable for the model of early-mature rice and ratooning rice,the rice varieties such as Zhongzheyou No.8 were used as the experimental materials,and the growth period,yield,disease resistance and lodging resistance of various rice varieties were investigated comprehensively by using the single factor randomized block design.The results showed that Zhongzheyou No.8 had the highest total yield of two crops with 15281.11 kg·hm^(-2),with good resistance and moderate growth period,which could be promoted to be planted in the low altitude areas of the south of Yongding District.The total yield of two crops of Zhongzheyou H7 was the second with 15149.93 kg·hm^(-2),with long growth period and weak disease resistance,which was suggested to be planted properly in the low altitude areas of the south of Yongding District where the rice blast and false smut occurred lightly.The total yields of two crops of Jingliangyou Huazhan and Longliangyou 534 were 14620.07 kg·hm^(-2) and 14602.07 kg·hm^(-2),respectively,with moderate growth period and good resistance,which could be widely planted in the low altitude areas of the south of Yongding District.The total yield of two crops of Yexiangyou 699 was 13688.96 kg·hm^(-2),with long growth period and weak resistance to false smut,which was suggested to be promoted cautiously.The total yield of two crops of Chuanzhongyou 3877 was 13601.50 kg·hm^(-2),with relatively average yield,but the growth period was significantly shorter than that of other tested varieties,and the resistance was good.Compared with other tested varieties,there was wider suitable area for Chuanzhongyou 3877 to be planted as the ratooning rice with low stubble harvested by machine,so it could be extended appropriately.Yexiangyou 6813 had higher yields of ratooning rice,with low total yield of two crops and weak resistance to rice smut.The total yield of two crops of Tailiangyou 217,Jing

关 键 词：再生稻 机收 低留桩 品种筛选 

分 类 号：S511[农业科学—作物学]