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	非耕地日光温室油桃根域限制对冠层特征及果实品质的影响
其他题名	Effects of root restriction on canopy characteristics and fruit quality of greenhouse-grown nectarine in non-arable land
	牛茹萱; 王晨冰; 赵秀梅; 王发林; 王鸿
来源期刊	果树学报
ISSN	1009-9980
出版年	2017
卷号	34 期号:1 页码:26-32
中文摘要	【目的】探明非耕地日光温室油桃根域限制对冠层特征的影响。【方法】以油桃品种中农金辉为试验材料,在西北地区戈壁非耕地日光温室中测定不同根域限制体积(135 L、225 L、360 L、576 L和对照1 440 L)对油桃树体生长、结果特性的影响,并用CI-110冠层分析仪分析不同处理对冠层特征参数的影响。【结果】L135、L225和L360限根体积处理的树体干径显著低于对照处理(L1440),但仅有135 L处理显著降低了油桃平均单果质量及产量。利用CI-110冠层分析仪分析叶面积指数(LAI)、散射辐射透过系数(TCDP),L135叶面积指数为1.81,显著低于L225(2.02)和L360 (2.21)限根处理,L576限根处理的LAI为2.87,与对照处理(L1440)无显著差异。限根栽培限制了树体枝叶生长量,造成L135、L225、L360限根处理的TCDP升高到0.34、0.30和0.25。【结论】L225和L360的限根体积可在适当增大栽培密度的条件下,应用于西北非耕地日光温室桃限根生产栽培。
英文摘要	【Objective】The shortage of arable land resource is a serious situation in China. The Gobi area located in Hexi Corridor of Gansu Province, has suitable natural conditions for fruit development such as light density and light period. However, Gobi is covered by coarse sands and gravels, which form a hard top soil layer in the desert terrain. Therefore, cultivating nectarines in the non-arable lands of Gobi needs to remove 80 cm deep gravel, then backfill soils from arable lands which are limited in Hexi Corridor. Such a practice seriously affects the quality of farmland and causes serious damage to the fragile ecological environment. Nectarine trees grow vigorously in greenhouses, which substantially affect photosynthesis and growth of the trees and the quality of the fruit. Branch pruning for controlling canopy is nutrition-consuming and costly and causes physiological diseases. Root restriction can save water and fertilizer in Gobi non-arable lands. It is good for high-density, high-yielding and high-efficiency cultivation through controlling vegetative growth. Soil volume in root restriction influences tree growth, canopy characters and economic characters. Suitable tree canopy characteristics are the basis for high yield. Studying the effects of root restriction on nectarine tree canopy characteristics can provide a theoretical basis and practical experience for nectarine cultivation in non-arable lands in greenhouse.【Methods】The field experiment was conducted to examine the effects of soil volume in root restriction on the vegetative growth, yield, fruit quality and canopy characteristics of greenhouse-grown nectarineZhongnong Jinhuiin non-arable land. The experiment included four treatments, where the dimensions of the root restriction containers (Length * width * depth) were 0.9 m * 0.5 m * 0.3 m (135 L),0.9 m 0.5 m 0.5 m (225 L),0.9 m 0.8 m 0.5 m (360 L) and 0.9 m 0.8 m 0.8 m (576 L), and root restriction material was geotechnical cloth. The local traditional cultivation method was adopted as the control, where backfilling soil was conducted after removing 80 cm of the original Gobi surface soil (control, 1 440 L). Randomized block design was used for this experiment, with three replicates in each treatment. The plant and row space was 0.9 m * 2 m, and the whole experimental area was 150 m2. Canopy images were collected by a CI-110 canopy analyzer. After zenith angle (140°-170°) and azimuth angle (45°-135° and 225°-315°) were removed using a plant canopy analysis system V6.0, leaf area index (LAI) and transmission coefficient for diffuse penetration (TCDP) were calculated with the CI-110 canopy analyzer software. Sugar content and soluble solid content (SSC), single fruit weight, fruit number per tree and yield were collected to evaluate the economic characters, and trunk diameter 10 cm above graft joint was used to evaluate plant growth.【Results】Root restriction had significant inhibitory effect on vegetative growth of the greenhouse-grown nectarine trees in non-arable land, which was shown by the impact on the stem diameter. The stem diameter in L135 treatment was 21.7 mm, which was 49.7% that of the control. The treatments of L225 and L360 caused 20% reduction in stem diameter compared to the control. The treatment of L135 reduced the average fruit weight and yield but increased SSC significantly (P<0.05). The treatment of L225 had significant differences from the control in average fruit weight, however its production had no significant differences.
中文关键词	油桃 ; 非耕地 ; 叶面积系数 ; 果实品质
英文关键词	Nectarine Non-arable land Leaf area index Fruit quality
语种	中文
国家	中国
收录类别	CSCD
WOS类目	HORTICULTURE
WOS研究方向	Agriculture
CSCD记录号	CSCD:5898852
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236145
作者单位	甘肃省农业科学院林果花卉研究所, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	牛茹萱,王晨冰,赵秀梅,等. 非耕地日光温室油桃根域限制对冠层特征及果实品质的影响[J],2017,34(1):26-32.
APA	牛茹萱,王晨冰,赵秀梅,王发林,&王鸿.(2017).非耕地日光温室油桃根域限制对冠层特征及果实品质的影响.果树学报,34(1),26-32.
MLA	牛茹萱,et al."非耕地日光温室油桃根域限制对冠层特征及果实品质的影响".果树学报 34.1(2017):26-32.