摘要
为探讨不同种植密度对新品种‘鸿油88’和‘秦油558’关键生物学指标的影响,以‘青杂5号’为对照,设置5个种植密度,分析其对生长发育、植物学性状和产量等指标的影响。结果表明,随种植密度增加,‘鸿油88’和‘秦油558’的成熟期提前,株高、单株角果数降低,而单位面积产量先增后降,‘鸿油88’在65万株·hm^(-2)(D2)、90万株·hm^(-2)(D3)、105万株·hm^(-2)(D4)密度下,实收产量达3333 kg·hm^(-2),比对照在相同密度约增产111~755 kg·hm^(-2);‘秦油558’在65万株·hm^(-2)(D2)、90万株·hm^(-2)(D3)密度下,实收产量分别达3222 kg·hm^(-2)和3211.11 kg·hm^(-2),比对照在相同密度约增产0~100 kg·hm^(-2),因此,认为‘鸿油88’的适宜种植密度为每公顷65万~105万株·hm^(-2),‘秦油558’的适宜种植密度为65万~90万株·hm^(-2)。
In order to explore the effects of different planting densities on the key biological indicators of the new rapeseed varieties‘Hongyou 88’and‘Qinyou 558’,with‘Qingza 5’as a control,five planting densities were setup to analyze their effects on growth and development,botanical traits and yield.The results showed that with the increase of planting density,the maturity period of‘Hongyou 88’and‘Qinyou 558’was shortened,the plant height and number of siliques per plant were decreased,while the yield per unit area first increased and then decreased.Under the densities of 650,000 plants·hm^(-2)(D2),900,000 plants·hm^(-2)(D3),and 1.05 million plants·hm^(-2)(D4),the actual yield reached 3333 kg·hm^(-2),which was about 111~755 kg·hm^(-2)higher than the control at the same density;Under the density of 650,000 plants·hm^(-2)(D2)and 900,000 plants·hm^(-2)(D3)of‘Qinyou 558’,the actual yield reached 3222kg·hm^(-2)and 3211.11 kg·hm^(-2),respectively,its yield increased by 0~100 kg·hm^(-2)compared with the control under the same density.Therefore,the appropriate planting density for‘Hongyou 88’is 650,000~1.05 million plants·hm^(-2),and the appropriate planting density of‘Qinyou 558’is 650,000~900,000 plants·hm^(-2).
作者
王学芳
李晓竹
张忠鑫
董育红
WANG Xuefang;LI Xiaozhu;ZHANG Zhongxin;DONG Yuhong(Hybrid Rapeseed Research Center of Shaanxi Province,Yangling,Shaanxi 712100,China;Labu Dalin Experimental Station of Hulunbeier Agricultural Reclamation Technology Development Co.,Ltd.,Hulunbeier,Inner Mongolia 022256,China)
出处
《陕西农业科学》
2021年第12期1-4,共4页
Shaanxi Journal of Agricultural Sciences
基金
陕西省农业协同创新与推广联盟项目(干旱半干旱地区秦油558油菜品种的示范与推广,LM202004)。
关键词
甘蓝型油菜
新品种
种植密度
产量
Brassica napus
New variety
Planting density
Yield
