昌乐县温室西瓜膨大期裂果与室内小气候要素的关系

doi:10.3969/j.issn.1673-503X.2023.03.015

Abstract

Abstract:

Using the greenhouse microclimate data and fruit cracking data of watermelon during the expansion stage, considering the meteorological conditions suitable for watermelon growth, 10 climate factors related to temperature and humidity were selected, the leading climate factors with high correlation with the number of fruit cracking were screened based on Pearson correlation analysis.The relationship between the fruit cracking of watermelon during the expansion stage of the greenhouse and indoor microclimate factors was analyzed.The results showed that there was a significant negative correlation between the number of cracked watermelons and the minimum temperature at night and a positive correlation between the number of cracked watermelons and the hourly maximum humidity difference at night.The goodness of fit (R²) of the climate regression equation of cracked watermelon during the expansion stage in the greenhouse reached 0.404, and the root mean square error (RMSE) between the simulated and actual number of fruit cracking in the verified sample is 6.8.The results show that the difference between minimum temperature and maximum hourly humidity at night could be used to simulate the cracked watermelon disaster in the greenhouse.

Key words: Greenhouse, Watermelon, Fruit cracking, Microclimate

CLC Number:

S651/S627

Shu-jun LI,Jun-xian TANG,Hua ZHAO,Jing YUAN,Ai-ling ZHANG,Pei-juan WANG. Relationship between fruit cracking and indoor microclimate factors of watermelon during the expansion stage in Changle greenhouse[J]. Journal of Meteorology and Environment, 2023, 39(3): 124-131.

Figures/Tables 7

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References 25

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日期	实际裂果数量/个	日期	实际裂果数量/个
20190323	21	20190407	0
20190324	24	20190408	0
20190325	19	20210331	3
20190326	48	20210401	6
20190327	25	20210407	3
20190328	24	20210414	3
20190329	18	20210422	3
20190330	12	20210424	6
20190331	5	20210425	3
20190401	3	20210426	3
20190402	23	20210427	3
20190403	26	20210428	3
20190404	17	20210429	3
20190405	8	20210430	6
20190406	3

日期	实际裂果数量/个	模拟裂果数量/个
2019-03-26	48	30
2019-03-30	12	10
2019-04-03	26	20
2019-04-07	0	0
2021-04-01	6	4
2021-04-24	6	2
2021-04-28	3	5

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Relationship between fruit cracking and indoor microclimate factors of watermelon during the expansion stage in Changle greenhouse

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