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本研究表明,地膜花生和露地花生全株干物质积累,荚果体积增长和荚果产量形成过程,均可用S曲线数学模型(logistic分布)来描述:①地膜花生全株干物质积累的增长速率转折点出现在出苗后76—82天期间,而露地花生为出苗后69—70天.在其转折点前后是干物质积累的高峰期.②地膜花生单株荚果总体积增长速率转折点为结荚期后25天,露地花生为28天.在转折点前后是其荚果体积增长的高峰期.③地膜花生单株荚果干物质积累增长速率在饱果期后28天达到转折点;露地花生为18天达到转折点.转折点前后是其单株荚果总干物质积累的高峰期.
The results showed that the whole plant dry matter accumulation, pod volume growth and pod yield formation of mulched peanut and open peanut could be described by the S-curve mathematical model (logistic distribution): ① The turning point of the growth rate of whole plant dry matter accumulation of mulched peanut appeared During the period of 76-82 days after emergence, while the peanut was exposed for 69-70 days after emergence, it was the peak of dry matter accumulation before and after its turning point.②The turning point of the total volume growth of peanut per plant was 25 days after podding , And the open peanut was 28 days.At the beginning and the end of the turning point, it was the peak of its pod volume growth.③The dry matter accumulation and growth rate of peanut per plant reached a turning point at 28 days after full-fruit stage.The petioles of peanut reached a turning point for 18 days Is the peak of the accumulation of total dry matter per plant pod.