Double-maize cropping system is an effective option for coping with climate change in the North China Plain.However, the effects of changes in climate on the growth and yield of maize in the two seasons are poorly understood.Forty-six cultivars of maize with different requirements for growing degree days（GDD）, categorized as high（H）, medium（M） or low（L）, and three cultivar combinations for two seasons as LH（using JD27 and DMY1 from category L in the first season; and YD629 and XD22 from category... 

【文章來(lái)源】：Journal of Integrative Agriculture. 2020,19(12)SCICSCD

【文章頁(yè)數(shù)】：16 頁(yè)

【文章目錄】：
1. Introduction
2. Materials and methods
    2.1. Site description
    2.2. Experimental design
    2.3. Weather data
    2.4. Sampling and measurements
    2.5. Statistical analysis
3. Results
    3.1. Climatic conditions
    3.2. Grouping of cultivars based on growing degree days and growth
    3.3. Grain yield and total biomass
    3.4. Dry matter accumulation pre-and post-silking
    3.5. Relationships between dry matter accumulation and climatic factors
    3.6. Production efficiency of temperature,radiation and precipitation
4. Discussion
    4.1. Advantages of the double-maize cropping system
    4.2. Comparison of the yield and the dry matter accumulation of LH,MM and HL
    4.3. Comparison of major climatic factors affecting dry matter accumulation in LH,MM and HL
5. Conclusion


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