高原夏秋胡萝卜营养生长发育规律研究  

Study on Nutritional Growth and Development Patterns of Summer and Autumn Carrots on the Plateau

作　　者：杨永岗[1] 张化生[1] 赵晓琴[1] YANG Yonggang;ZHANG Huasheng;ZHAO Xiaoqin(Vegetable Research Institute,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China)

机构地区：[1]甘肃省农业科学院蔬菜研究所,甘肃兰州730070

出　　处：《寒旱农业科学》2024年第5期441-444,共4页Journal of Cold-Arid Agricultural Sciences

基　　金：国家自然科学基金(31260471);甘肃省自然科学基金(1506RJZA194)。

摘　　要：为研究高原夏秋胡萝卜未先期抽薹植株营养器官的生长发育规律,以耐或易先期抽薹的3个胡萝卜品种为试材,采用连续2 a的高原夏秋露地试验方法,测定不同品种高原夏秋胡萝卜的茎叶与肉质根的鲜重、干重及库活性。结果表明,3个高原夏秋胡萝卜品种随生育进程茎叶和肉质根的鲜重、干重均呈逐渐升高的趋势;叶片迅速生长期,耐抽薹胡萝卜品种茎叶与肉质根的干重显著高于易抽薹品种;在高原夏季长日照条件下,耐抽薹胡萝卜品种的库活性显著高于易抽薹品种,较强的库活性可能是胡萝卜不易发生先期抽薹的内因之一。In order to study the growth and development of vegetative organs in non-early bolting plants of plateau summer and autumn carrots,the fresh weight,dry weight and sink activity of stems and leaves and fleshy roots of 3 different carrot varieties were measured by using the method of plateau summer and autumn open field test for 2 consecutive years.The results showed that the fresh and dry weight of the stems and leaves and the fleshy roots of 3 carrot varieties were gradually increased.In the rapid growth period of the leaf,the dry weight of the stems and leaves and the fleshy roots in the bolting resistant carrots were significantly higher than those inbolting carrots.Furthermore,under the long sunny conditions in summer and autumn,the sink activity of bolting resistant carrots was significantly higher than that of that of early bolting carrot,indicating that the stronger sink activity may be one of the internal reasons why carrots are less prone to early bolting.

关 键 词：高原夏秋 胡萝卜 营养生长 库活性 发育规律 

分 类 号：S631.2[农业科学—蔬菜学]