基于三维空间下水稻粒形分类的探讨  

Preliminary Report on Identification of New High-quality Rice Variety in Plateau Ecology

作　　者：张元虎[1] 张晓芳 欧江 杨立来 任廷渝 谢海呈[1] 徐海峰 ZHANG Yuanhu;ZHANG Xiaofang;OU Jiang;YANG Lilai;REN Tingyu;XIE Haicheng;XU Haifeng(Rice Research Institute,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China;Guizhou Kaiyang Huananxin Agricultural Development Co.Ltd.,Guiyang 550307,China;Meitan County Palace Fragrant Rice Industry Limited Liability Co.Ltd.,Zunyi Guizhou 564101,China)

机构地区：[1]贵州省农业科学院水稻研究所,贵阳550006 [2]贵州开阳华楠馨农业发展有限公司,贵阳550307 [3]湄潭县宫廷香米业有限责任公司,贵州遵义564101

出　　处：《种子》2023年第6期112-117,145,共7页Seed

基　　金：贵州省科技支撑项目“不同类型特大粒水稻种质资源创新,优质莽稻新品种选育与示范”[黔科合支撑(2020)1Y055号]。

摘　　要：以目前生产上应用的不同类型优质水稻品种及本课题组近年来有代表性育种材料的稻谷籽粒为研究对象,通过测定其稻谷的千粒重、粒长、粒宽、粒厚,计算稻谷长宽比、宽厚比,进行相关性分析,并按照不同的粒形分类方法进行分类。结果表明,稻谷千粒重与粒厚、粒长呈极显著正相关,与粒宽、长宽比呈显著正相关。为更直观展现稻谷籽粒的粒形,将三维空间下的水稻粒形分为细圆柱形、粗圆柱形、椭圆柱形及鹅卵石形四类。育成稻谷千粒重50 g左右新品种的粒形选种目标:谷粒粒长14.0 mm左右,粒宽3.0 mm左右、粒厚2.5 mm左右,粒形为粗圆柱形。The main high-quality rice varieties currently used in production and rice seeds with representative breeding materials from our group were used as research object.Correlation analysis of the rice grains and their classification according to different grain shape classification methods were carried out through measuring the thousand grain weight,grain length,grain width and grain thickness of their rice grains,and calculating the grain length to width ratio and width to thickness ratio.The results showed that the thousand grain weight of rice was positively correlated with grain thickness and grain length,and with grain width and aspect ratio.It was proposed that rice grain shape could be classified into four categories:thin cylinder,thick cylinder,elliptical cylindrical and pebble-shaped in three-dimensional space in order to visualize the grain shape of rice seeds.The grain shape selection for breeding new varieties of rice with a thousand grain weight of 50 g,grain length of about 14.0 mm,grain width of about 3.0 mm,grain thickness of about 2.5 mm,and grain shape of thick cylinder.

关 键 词：水稻 三维空间 粒形分类 

分 类 号：S511[农业科学—作物学]