Effects of Mulching Materials on Photosynthetic Characteristics, Yield and Quality of Watermelon

doi:10.11924/j.issn.1000-6850.casb2021-0821

Abstract

Abstract:

To select suitable mulching materials for watermelon cultivation, white film, mushroom residue, liquid film and black grass proof non-woven fabric were selected for mulching cultivation, and their effects on photosynthetic characteristics, yield and quality of watermelon were comprehensively compared. The results showed that: (1) in all treatments, the covering effect of black grass proof non-woven fabric was the best, the fruit yield and the contents of soluble solids and Vc were significantly higher than those of other treatments, the net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr) of leaves were significantly higher than those of other treatments, and the intercellular CO₂ concentration (Ci) was significantly higher than that of the control, while the water vapor pressure deficit (Vpd) was significantly lower than that of other treatments; (2) the correlation analysis showed that there was an extremely and significantly positive correlation between watermelon yield and Pn, Tr, Vpd, and between Pn and Tr. In general, the black grass proof non-woven fabric could be used as a suitable mulching material for watermelon cultivation.

Key words: watermelon, mulching material, photosynthetic characteristics, yield, quality

CLC Number:

S651

ZHANG Xiaohong, YAN Zheng, PENG Qiong. Effects of Mulching Materials on Photosynthetic Characteristics, Yield and Quality of Watermelon[J]. Chinese Agricultural Science Bulletin, 2022, 38(22): 44-48.

Figures/Tables 7

References 30

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处理	伸蔓期	始花期	膨瓜期
T1(CK)	19.47Bb	28.95Bb	9.89Bb
T2	13.48Cc	16.74Dd	7.75Cc
T3	23.86Aa	32.56Aa	15.58Aa
T4	19.72Bb	21.42Cc	9.99Bb

处理	伸蔓期	始花期	膨瓜期
T1(CK)	19.47Bb	28.95Bb	9.89Bb
T2	13.48Cc	16.74Dd	7.75Cc
T3	23.86Aa	32.56Aa	15.58Aa
T4	19.72Bb	21.42Cc	9.99Bb

处理	伸蔓期	始花期	膨瓜期
T1(CK)	0.51Bb	0.29Cc	0.25Bb
T2	0.37Cc	0.22Dd	0.15Dd
T3	0.68Aa	0.38Aa	0.36Aa
T4	0.51Bb	0.33Bb	0.22Cc

处理	伸蔓期	始花期	膨瓜期
T1(CK)	0.51Bb	0.29Cc	0.25Bb
T2	0.37Cc	0.22Dd	0.15Dd
T3	0.68Aa	0.38Aa	0.36Aa
T4	0.51Bb	0.33Bb	0.22Cc

处理	伸蔓期	始花期	膨瓜期
T1(CK)	328.20Cc	169.99Cc	320.82Bb
T2	269.81Dd	148.76Dd	287.17Cd
T3	340.22Bb	208.09Bb	345.15Aa
T4	357.63Aa	244.75Aa	315.18Bc