חיפוש מתקדם

BACKGROUND:

Nitrogen (N) fertilization influences plant growth and yield, and may also affect fruit quality. For two consecutive seasons, we examined the effects of different N-fertilization levels-5 to 200 mg L-1 -on pomegranate fruit, aril and juice quality. Evaluations included fruit and aril weight, size and color, appearance of peel blemishes, internal black rot, and nutritional composition of extracted juices.

RESULTS:

Nitrogen-fertilization affected pomegranate fruit, aril and juice quality. The most pronounced effects were observed in trees grown under the lowest N-fertilization level, which bore smaller fruit and arils, the latter with lighter color; the fruit suffered from sunburn, and their juice had lower total soluble solid, acidity and anthocyanin contents. The proportion of edible aril weight per total fruit weight gradually increased with the increase in N-fertilization concentration. In contrast, N fertilization did not affect peel color, roughness or cracking incidence. Black rot incidence increased with increasing N concentration.

CONCLUSION:

Nitrgen-fertilization affected pomegranate fruit, arils and juice quality, and the total number of marketable fruit per tree. The optimal N-fertilization levels, which were most beneficial for achieving high-quality marketable fruit, were between 40 and 100 mg L-1 . This article is protected by copyright. All rights reserved.

This article is protected by copyright. All rights reserved.

פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Effects of nitrogen fertilization on pomegranate fruit, aril and juice quality
100
Effects of nitrogen fertilization on pomegranate fruit, aril and juice quality

BACKGROUND:

Nitrogen (N) fertilization influences plant growth and yield, and may also affect fruit quality. For two consecutive seasons, we examined the effects of different N-fertilization levels-5 to 200 mg L-1 -on pomegranate fruit, aril and juice quality. Evaluations included fruit and aril weight, size and color, appearance of peel blemishes, internal black rot, and nutritional composition of extracted juices.

RESULTS:

Nitrogen-fertilization affected pomegranate fruit, aril and juice quality. The most pronounced effects were observed in trees grown under the lowest N-fertilization level, which bore smaller fruit and arils, the latter with lighter color; the fruit suffered from sunburn, and their juice had lower total soluble solid, acidity and anthocyanin contents. The proportion of edible aril weight per total fruit weight gradually increased with the increase in N-fertilization concentration. In contrast, N fertilization did not affect peel color, roughness or cracking incidence. Black rot incidence increased with increasing N concentration.

CONCLUSION:

Nitrgen-fertilization affected pomegranate fruit, arils and juice quality, and the total number of marketable fruit per tree. The optimal N-fertilization levels, which were most beneficial for achieving high-quality marketable fruit, were between 40 and 100 mg L-1 . This article is protected by copyright. All rights reserved.

This article is protected by copyright. All rights reserved.

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