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Influence of irrigation during the growth stage on yield and quality in mango ( Mangifera indica L )

View Article: PubMed Central - PubMed

ABSTRACT

Although being one of the few drought-tolerant plants, mango trees are irrigated to ensure optimum and consistent productivity in China. In order to better understand the effects of soil water content on mango yield and fruit quality at fruit growth stage, irrigation experiments were investigated and the object was to determine the soil water content criteria at which growth and quality of mango would be optimal based on soil water measured by RHD-JS water-saving irrigation system through micro-sprinkling irrigation. Five soil water content treatments (relative to the percentage of field water capacity) for irrigation (T1:79%-82%, T2:75%-78%, T3:71%-74%, T4: 65%-70%, T5:63%-66%) were compared in 2013. Amount of applied irrigation water for different treatments varied from 2.93m3 to 1.08 m3. The results showed that mango fruit production and quality at fruit growth stage were significantly affected under different irrigation water amounts. Variation in soil water content not only had effects on fruit size, but also on fruit yield. The highest fruit yield and irrigation water use efficiency were obtained from the T4 treatment. Irrigation water amount also affected fruit quality parameters like fruit total soluble solids, soluble sugar, starch, titratable acid and vitamin C content. Comprehensive evaluation of the effect of indexs of correlation on irrigation treatment by subordinate function showed that when the soil moisture content were controlled at about 65–70% of the field water moisture capacity, water demand in the growth and development of mango could be ensured, and maximum production efficiency of irrigation and the best quality of fruit could be achieved. In conclusion, treatment T4 was the optimum irrigation schedule for growing mango, thus achieving efficient production of mango in consideration of the compromise among mango yield, fruit quality and water use efficiency.

No MeSH data available.


Shows the relationship between fruit yield (a) and irrigation water use efficiency (b) for different treatments.
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pone.0174498.g004: Shows the relationship between fruit yield (a) and irrigation water use efficiency (b) for different treatments.

Mentions: The irrigation water use efficiency (WUE) is the relation between yield and irrigation water, and was calculated as mango yield divided by amount of irrigation water. Fruit yield and irrigation water use efficiency for different treatments is listed in Table 3 and shown in Fig 4A. The maximum value of WUE, 29.41 kg/m3, was determined in T4 whereas minimum value was obtained from T1 with 13.54 kg/ m3. As shown in Fig 4A, the average yield of different treatments decreased as the soil water content decreased (from T1 to T5). Irrigation water use efficiency increased across the soil water content treatments (from T1to T5). The maximum yield was obtained in the T2 treatment where the value of WUE was 16.72kg/m3. The average yield of T1, T3, T4 and T5 was lower than that of T2 but there were no significant differences among the former four treatments. The average yield of NI was lower than that of each treatment and the difference was significant compared with T1, T2, T3 and T4 treatments, but the difference was not significant between NI and T5 treatments. From Table 3, it can be seen that mango yield was in the order of T2>T1>T3>T4>T5. The maximum value of yield, 41.14 kg/tree, was determined in T2 whereas minimum value was obtained from T5 with 30.72 kg/tree. Using linear regression analysis, the relationship between Fruit Yield and Water Use Efficiency was found to be y = -1.9898x2+12.86x+19.785. Fig 4B shows a highly significant determination factor (R2 = 0.87) between the relations of mango fruit yield with the total amount of applied irrigation water. The amount of irrigation water has significantly affected fruit production. Production was the highest for the 78–89% soil water content through this linear regression analysis that the mango gained more irrigation water. Consequently, about 2.78 m3/tree water is needed for optimal mango growth and production.


Influence of irrigation during the growth stage on yield and quality in mango ( Mangifera indica L )
Shows the relationship between fruit yield (a) and irrigation water use efficiency (b) for different treatments.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5383426&req=5

pone.0174498.g004: Shows the relationship between fruit yield (a) and irrigation water use efficiency (b) for different treatments.
Mentions: The irrigation water use efficiency (WUE) is the relation between yield and irrigation water, and was calculated as mango yield divided by amount of irrigation water. Fruit yield and irrigation water use efficiency for different treatments is listed in Table 3 and shown in Fig 4A. The maximum value of WUE, 29.41 kg/m3, was determined in T4 whereas minimum value was obtained from T1 with 13.54 kg/ m3. As shown in Fig 4A, the average yield of different treatments decreased as the soil water content decreased (from T1 to T5). Irrigation water use efficiency increased across the soil water content treatments (from T1to T5). The maximum yield was obtained in the T2 treatment where the value of WUE was 16.72kg/m3. The average yield of T1, T3, T4 and T5 was lower than that of T2 but there were no significant differences among the former four treatments. The average yield of NI was lower than that of each treatment and the difference was significant compared with T1, T2, T3 and T4 treatments, but the difference was not significant between NI and T5 treatments. From Table 3, it can be seen that mango yield was in the order of T2>T1>T3>T4>T5. The maximum value of yield, 41.14 kg/tree, was determined in T2 whereas minimum value was obtained from T5 with 30.72 kg/tree. Using linear regression analysis, the relationship between Fruit Yield and Water Use Efficiency was found to be y = -1.9898x2+12.86x+19.785. Fig 4B shows a highly significant determination factor (R2 = 0.87) between the relations of mango fruit yield with the total amount of applied irrigation water. The amount of irrigation water has significantly affected fruit production. Production was the highest for the 78–89% soil water content through this linear regression analysis that the mango gained more irrigation water. Consequently, about 2.78 m3/tree water is needed for optimal mango growth and production.

View Article: PubMed Central - PubMed

ABSTRACT

Although being one of the few drought-tolerant plants, mango trees are irrigated to ensure optimum and consistent productivity in China. In order to better understand the effects of soil water content on mango yield and fruit quality at fruit growth stage, irrigation experiments were investigated and the object was to determine the soil water content criteria at which growth and quality of mango would be optimal based on soil water measured by RHD-JS water-saving irrigation system through micro-sprinkling irrigation. Five soil water content treatments (relative to the percentage of field water capacity) for irrigation (T1:79%-82%, T2:75%-78%, T3:71%-74%, T4: 65%-70%, T5:63%-66%) were compared in 2013. Amount of applied irrigation water for different treatments varied from 2.93m3 to 1.08 m3. The results showed that mango fruit production and quality at fruit growth stage were significantly affected under different irrigation water amounts. Variation in soil water content not only had effects on fruit size, but also on fruit yield. The highest fruit yield and irrigation water use efficiency were obtained from the T4 treatment. Irrigation water amount also affected fruit quality parameters like fruit total soluble solids, soluble sugar, starch, titratable acid and vitamin C content. Comprehensive evaluation of the effect of indexs of correlation on irrigation treatment by subordinate function showed that when the soil moisture content were controlled at about 65–70% of the field water moisture capacity, water demand in the growth and development of mango could be ensured, and maximum production efficiency of irrigation and the best quality of fruit could be achieved. In conclusion, treatment T4 was the optimum irrigation schedule for growing mango, thus achieving efficient production of mango in consideration of the compromise among mango yield, fruit quality and water use efficiency.

No MeSH data available.