Effects of Meteorological Factors on Overwintering Ability,Yield and Quality of Forage Rape

作     者：Yao ZHANG Junzhu GE Guangsheng ZHOU Xidong WU Yong an YANG Haipeng HOU Qian LIANG Zhiqi MA 

作者机构：College of Agronomy&Resources and EnvironmentTianjin Agricultural UniversityTianjin 300392China National Key Lab of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhan 430070China Tianjin High quality Agricultural Products Development Demonstration CenterTianjin 300061China Tianjin Planting Industry Development Service CenterTianjin 300061China 

出 版 物：《Agricultural Biotechnology》 (农业生物技术（英文版）)

年 卷 期：2021年第10卷第3期

页      面：15-21,25页

学科分类：090503[农学-草业科学] 0909[农学-草学] 0905[农学-畜牧学] 090101[农学-作物栽培学与耕作学] 09[农学] 0901[农学-作物学] 

基　　金：National Key Research and Development Program of China(2017YFD0200808) Seed Science and Technology Major Special Program of Tianjin(18ZXZYNC00100) Scientific Research Program(Natural Science)of Tianjin Education Committee(2019KJ039) Graduate Research Innovation Program of Tianjin(2020YJSS128) 

主　　题：Forage rape Meteorological factors Wintering ability Forage yield Forage quality 

摘      要：In order to investigate the effects of meteorological factors on rape overwintering ability,forage yield and quality of rape in the North China plain,Brassia campestris *** Brassica napus *** used in this *** results showed that compared with the *** ***,the growth period of *** *** shortened by 10-15 d,the overwintering rate(WR)increased by 50.6%,and the density after winter(PD)increased by 41.5%.The fresh forage yield(FFY)and dry forage yield(DFY)of the *** *** significantly increased by 40.9%and 38.1%compared with the *** ***.,respectively,while the forage quality of the *** *** rape was significantly better than that of the *** *** with the *** ***,the crude protein(CP),fat,ash and total fatty acid(TFA)contents of the *** *** of rape increased by 27.6%,42.9%,23.9%and 52.3%,respectively,and the milk productivity(HM),relative forage value(RFV)and relative forage quality(RFQ)increased by 14.0%,16.2%and 42.1%,*** light and heat resources before wintering increased the WR and PD(P0.05),and lower temperature during the wintering period led to lower WR(P0.05).The contents of CP,fat and TFA of rape had an extremely significant negative correlation with the temperature and sunshine hours before wintering,but an extremely significant positive correlation with the temperature during the wintering period and after regreening,as well as the sunshine hours and rainfall during the wintering period;and HM had an extremely significant positive correlation with the temperature,sunshine hours and rainfall during the wintering period,while RFV and RFQ were only extremely significantly positively correlated with the maximum temperature and *** summary,in the North China Plain