³óÃÌÁøÈïû ³ó¾÷°úÇÐ³í¹®Áý 39(1)1997.6 ¿¡ ½Ç¸° ³í¹®ÀÔ´Ï´Ù.
δâ©ðàソ¡ ÀÇÇÑ ¿©¸§Ã¶ ¼ö¹Ú ù¡òõú¾ß¾ üùÍý
*
** * *
* ***
ßïÙ¥ý³¡¤ì°ùÓôÉ¡¤ÑÑëÈïö¡¤ì÷î¨éð¡¤êäóä¤ÚÓÏíéÜ
Effects of Irrigation Amount on Yield and Sugar Content of Summer Watermelon(Citrullus
vulgaris S.)
*
** *
*
Myeong-Whoon Seo, Han-Chul Rhee, Yun-Jeong Kim, Jae-Wook Lim
* ***
Chang-Jae Yu and Kuen-Woo Park
ABSTRACT : This study was carried out to investigate the effects of irrigation
amount on fruit quality and yield of summer watermelon grown in a plastic-house.
The irrigation regimes after flowering consisted of continuous irrigation,
non-irrigation, 8-day interval irrigation from 10 days and 20 days after flowering(DAF).
Soil water tension measured at harvesting time increased up to pF
3.5 in non-irrigation without causing wilting of plants. The number of
settings per plant ranged from 1.8 to 2.0 in all regimes of irrigation. The
continuous irrigation exhibited the highest(11.8%) fruit cracking ratio while
8-day interval irrigation from 10 DAF showed the lowest(6.8%). The weight,
length and width of fruits increased in proportio
n to the amount of irrigation, while sugar content exhibited
highest value(13.2¡£Bx) in non-irrigation. The sucrose and fructose contents
showed positive correlation with sugar contents while glucose did not.
As a conclusion continuous irigation for the first 10 days after
flowering followed by 8-day interval irrigations seems to be a proper irrigation
method to produce summer watermelon considering both yield and sugar content
based quality.
Key words : Watermelon, Irrigation, Quality, Sugar content,
Fructose, Sucrose
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*ÌÈѲԳÒÜõ½òÉýéêÂ(Kyonggi Provincial Rural Development Administration, Hwasong,
445-970 Korea)
**çÑõÒÜåöãËúÐíÞ Ý¼ß£ê®çÝãËúÐíÞ(Pusan Horticultural Experiment Station, RDA,
Pusan, 616-300 Korea)
***ÍÔÕòÓÞùÊÎè (Dept. of Hort. Sci., Korea Univ. 136-701 Korea)
ßý Öå
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´çµµ°¡ 12¡£BxÀε¥ ºñÇØ ±¹³» ¼ö¹ÚÀº 9¡10¡£Bx·Î½á (³óÃÌÁøÈïû, 1991) °íǰÁúÀÇ
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ì° Ôõ(1993)ÀÇ ¼ö¹Ú ºñ°¡¸² ò¨ñº Àç¹è½Ã Àç½Ä¹Ðµµ°¡ ǰÁú ¹× ¼ö·®¿¡ ¹ÌÄ¡´Â ¿µÇâ
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5êÅ 20ìí 12cm Èæ»ö PVC ÆýÆ®¿¡ ÆÄÁ¾ÇÏ¿© 7êÅ 8ìí¿¡ º»¿± 5¸Å¸¦ ³²±â°í
î×ãýÇÏ¿© 250 ¡¿ 90 cm·Î Á¤½ÄÇϰí ¤ ¸ÖĪÀ» ÇÏ¿´´Ù. ñ»Ó× ö°ò« 4º»À»
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Áú¼ÒÁú ºñ·áÀÇ 1/2°ú ÀλêÁú Àü·®, °¡¸®Áú 1/2, ¼®È¸Àü·®, ÅðºñÀü·®Àº ¹Ø°Å¸§À¸·Î
Á¤½Ä 10ÀÏÀü¿¡ ½Ã¿ëÇÏ¿´°í, ¿ô°Å¸§Àº Á¤½ÄÈÄ 2ÁÖÈÄ¿¡ 1/3À» ³ª¸ÓÁö¸¦ ½Ã¿ëÇÏ¿´´Ù.
Åä¾ç¼öºÐ Á¶Àý ±âÁØÀÌ µÇ´Â °³È±â´Â 8¿ù 1ÀÏÀ̾ú°í, ±×ÈÄ °¢ 󸮱¸º°·Î
â©ÝÂÁ¶ÀýÀ» ÇÏ¿´´Âµ¥, Åä¾ç¼öºÐ°è(HJ-530, Kett)¿¡ Á¶Àý±â¸¦ ºÎÂøÇÏ¿© Á¤½ÄÈĺÎÅÍ
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¶ÇÇÑ °¢ ½ÃÇ豸º° °ü¼ö·®Àº °¡Á¤¿ë ¼öµµ°è·®±â¸¦ ÀÌ¿ëÇÏ¿© ÃøÁ¤ÇÏ¿´´Ù.
°ú½Ç ´çµµ´Â µðÁöÅÐ ±¼Àý´çµµ°è(PR-1, Atago)·Î ÃøÁ¤ÇÏ¿´À¸¸ç, ´çºÐ¼®Àº
¾Æ¹Ì³ë»ê °í¼Ó»öÃþºÐ¼®±â(Waters»ç, comp
onent ðÚØ¡)·Î ½Ç½ÃÇÏ¿´À¸¸ç, »ýÀ°Á¶»ç´Â ³ó»ç½ÃÇ迬±¸ Á¶»ç ±âÁØ(³óÁøÃ», 1983)¿¡ ÁØÇÏ¿´´Ù.
Á¤½Ä±â ÀÌÈÄ °¢ 󸮺° °ü¼ö·®Àº Ç¥1°ú °°´Ù.
Á¤½Ä±âºÎÅÍ °³È±â±îÁö 23Àϰ£ pF 2.3À» °ü¼ö½ÃÁ¡À¸·Î ÇÏ¿© ÁÖ´ç 104§¤¾¿ °øÈ÷
°ü¼öÇÏ¿´À¸¸ç, °³È±â ÀÌÈÄÀÇ 1ÁÖ´ç °ü¼ö·®Àº °üÇà°ü¼ö´Â 1ȸ¿¡ 16.5§¤¾¿ 8ȸ
°ü¼öÇÏ¿© ÃÑ 132.1§¤, °³È 20ÀÏÈÄ 8ÀÏ °£°Ý 󸮴 16.3§¤¾¿ 7üÞ °ü¼öÇÏ¿©
ÃÑ 114.4§¤, °³È 10ÀÏÈÄ 8ÀÏ °£°Ý 󸮴 18§¤¾¿ 5ȸ ¸ðµÎ 90.2§¤¸¦ °ü¼öÇÏ¿´À¸¸ç,
°³ÈÈÄ ´Ü¼ö±¸´Â °ü¼öÇÏÁö ¾Ê¾Ò´Ù.
Table 1. Amount and times of watering under irrigation regimes.
Before flowering : soil water tension was below pF 2.3 during irrigation
period
by soil moisture controller
After flowering : soil water tension was below pF 2.5 during
irrigation
period
by soil moisture controller.
¼ö¹Ú ½ÃÇèÆ÷ÀåÀÇ Á¤½Ä±â ÀÌÈĺÎÅÍ ¼öÈ®½Ã ±îÁö 󸮺° Åä¾ç¼öºÐ º¯È¸¦ º¸¸é
±×¸² 1°ú °°´Ù.
(±×¸² 1 »ý·«)
Fig.1. Soil water tension of various irrigation regimes.
Before
flowering : soil water tension was below pF 2.3 during irrigation
period
by soil moisture controller
After flowering
: soil water tension was below pF 2.5 during irrigation
period
by soil moisture controller
º» ½ÃÇè¿¡¼ÀÇ °ü¼öó¸®ÀÇ ½ÃÇèÀÌ µÇ´Â °³È±â´Â 8¿ù 1ÀÏ
À̾ú´Ù. Á¤½Ä±âºÎÅÍ °³È±â±îÁöÀÇ ¸ðµç ½ÃÇ豸ÀÇ Åä¾ç¼öºÐ °ü¸®´Â pF2.3À¸·Î Á¶ÀýÇÏ¿´°í,
°³È±â ÀÌÈÄ ºÎÅÍ´Â pF2.5·Î Á¶ÀýÇÏ¿´´Ù.
°³È±â ÀÌÈĺÎÅÍ ¼öÈ®±â±îÁö °ü¼öÇÏÁö ¾ÊÀº ´Ü¼ö±¸´Â ¼öÈ®±â¿¡ À̸£·¯
Åä¾ç¼öºÐÀÇ pF°¡ 3.5 ¼öÁرîÁö ³ô¾ÆÁ³À¸³ª Ãʱâ ê×ð½ïÇÀÎ pF 3.9¿¡´Â ¹ÌÄ¡Áö
¾Ê¾Ò´Ù. °³È 10ÀÏÈÄ ºÎÅÍ 8ÀÏ °£°Ý °ü¼ö󸮴 °³È±â ºÎÅÍ 10ÀÏ ±îÁö pF
2.5·Î °ü¼öµÇ¾ú°í, Ó¨â©ô¥×âÑ¢ ÀÌÈÄ´Â pF 2.5¸¦ °ü¼ö½ÃÁ¡À¸·Î ÇÏ¿© 2ȸ °ü¼öÇÏ¿´À¸¸ç,
8Àϰ£ÀÇ Ó¨â©±â°£ µ¿¾È Åä¾ç¼öºÐÀÇ pF°¡ 3.0 ¼öÁرîÁö ³ô¾ÆÁ³À¸³ª »ýÀ°¿¡ ÁöÀåÀ»
ÁÙ Á¤µµ·Î °ÇÁ¶ÇÑ Åä¾ç¼öºÐ »óÅ´ ¾Æ´Ï¾ú´Ù.
¶Ç, °³È 20ÀÏÈÄ 8ÀÏ °£°Ý 󸮴 °³È±â ºÎÅÍ 20ÀÏ ±îÁö pF 2.5¸¦ °ü¼ö½ÃÁ¡À¸·Î
ÇÏ¿© 6ȸ °ü¼öÇÑÈÄ 8Àϰ£ Ө⩠ÈÄ 1ȸ °ü¼öÇÑ Ã³¸®±¸¿¡¼ 8Àϰ£ ´Ü¼ö±â°£ µ¿¾È Åä¾ç¼öºÐÀÇ
pF°¡ 2.7 ¼öÁرîÁö ³ô¾ÆÁ³´Ù. ÇÑÆí, ¹«Ã³¸®ÀÎ °üÇà °ü¼ö±¸´Â °³È±â ÀÌÈÄ pF
2.5¸¦ °ü¼ö½ÃÁ¡À¸·Î ÇÏ¿© ÃÑ 8ȸ °ü¼öÇÏ¿´´Ù.
°ü¼ö󸮿¡ µû¸¥ »ýÀ°»óȲÀº <Ç¥2>¿Í °°´Ù. ç¨íþ, ç¨øë, ØÀíþ,
ç¨â¦, ï½Êàíþ µîÀº °ü¼ö·®ÀÌ ¸¹À»¼ö·Ï Å©°í ±æ¾úÀ¸¸ç, °ü¼ö¸¦ ÇÏÁö ¾ÊÀº Ó¨â©Ï¡´Â
»ýÀ°ÀÌ °¡Àå ÀúÁ¶ÇÏ¿´´Ù. Ê¥Ôö(1975, 1985)´Â °³È ´çÀÏ ¾ÆÄ§¿¡ íÁü£¿¡¼ ¼±´Ü±îÁö
±æÀ̰¡30~50 cm°¡ ÁÁ°í 60 cm ÀÌ»óÀÌ µÇ¸é ¿µ¾ç »ýÀåÀÌ Áö³ªÃÄ ³«°ú°¡ µÇ±â ½±´Ù°í
ÇÏ¿´´Âµ¥ º» ½ÃÇè¿¡¼ °³È ´çÀÏ ¾ÆÄ§ ¾Ï²É¿¡¼ ¼±´Ü±îÁö ±æÀÌ´Â 47.4
cm ~ 54.0 cm·Î Ãʼ¼°¡ ºñ±³Àû ¾ÈÁ¤µÈ °¡¿îµ¥ Âø°ú°¡ µÇ¾úÀ½À» ³ªÅ¸³»ÁÖ°í
ÀÖ´Ù.
Table 2. Effect of irrigation regimes on the growth of watermelon.
°ü¼ö󸮿¡ µû¸¥ °ú½ÇƯ¼ºÀº ÁÖ´ç 2°ú Âø°ú¸¦ ¸ñÇ¥·Î 1 ÁÖ´ç Âø°ú¼ö¿¡¼
󸮰£ Â÷À̰¡ ¾øÀÌ ÁÖ´ç 1.8 ~ 2.0°³·Î Âø°ú°¡ ¾çÈ£ÇÏ¿´À½À» º¸¿© ÁÖ¾ú´Ù. ¿°ú´Â
°³È 10ÀÏÈÄ 8ÀÏ °£°ÝÀ¸·Î °ü¼öó¸® ÇÑ Ï¡°¡ 6.7%·Î °¡Àå ³·¾Ò°í ´Ù¸¥ 󸮴 10¡11.8%·Î
´Ù¼Ò ³ô°Ô ³ªÅ¸³ª Ãʱ⠺ñ´ë ÀÌÈÄÀÇ ¼öºÐ°ü¸®´Â pF 2.5 ¼öÁØÀ¸·Î 8ÀÏ °£°ÝÀ¸·Î °ü¼ö´Â
°ÍÀÌ ¿°ú°¡ »ýÀ°¿¡ ¾çÈ£ÇÔÀ» ³ªÅ¸³»ÁÖ°í ÀÖ´Ù.
Table 3. Effect of irrigation regimes on the fruit quality of watermelon.
¶Ç, Âø°úÀ²Àº °³È 10ÀÏÈÄ 8ÀÏ °£°Ý °ü¼ö±¸°¡ 79.0 %À̾úÀ¸¸ç, °üÇà
°ü¼ö±¸´Â 81.0 %, °³È 20ÀÏÈÄ 8ÀÏ °£°Ý °ü¼ö±¸´Â 88.9 %, °³ÈÈÄ ´Ü¼ö±¸´Â
90 % ¼øÀ¸·Î ³ô¾ÆÁö´Â °æÇâÀ» º¸¿´´Ù. ÚÓ Ôõ(1985)Àº ÇÏ°è ½Ã¼³Àç¹è ¼ö¹ÚÀÇ
°ü¼ö½ÃÇè¿¡¼ °ü¼ö 󸮱¸ÀÇ Æò±Õ Âø°úÀ²Àº 78.8%À̶ó ÇÏ¿´°í ì° Ôõ(1993)Àº ¼ö¹Ú
ºñ°¡¸²Àç¹è Àç½Ä¹Ðµµ ½ÃÇè¿¡¼ Âø°úÀ²ÀÌ 48 ~ 86 % ¼öÁØÀ̾ú´Âµ¥ ºñÇÏ¿© ´Ù¼Ò ³ô°Ô
³ªÅ¸³µ´Ù.
°úÁß ¿ª½Ã °ü¼ö·®ÀÌ °¡Àå ¸¹¾Ò´ø °üÇà °ü¼ö±¸°¡ 1,872g/°³·Î °¡Àå ¹«°Å¿ü°í,
°ü¼ö·®ÀÌ Àû¾îÁú ¼ö·Ï °úÁßµµ °¡º¿öÁ® °³ÈÈÄ ´Ü¼ö±¸´Â 1,272 g/°³À¸·Î °¡Àå ³·Àº
¼öÁØÀ̾ú´Ù.
°ú½Ç Å©±â¸¦ ³ªÅ¸³»´Â Íýíþ°ú ÍýÌìÀº »ýÀ° °á°ú¿Í °°ÀÌ °ü¼ö·®ÀÌ ¸¹À»
¼ö·Ï °¡Àå Ä¿¼ °üÇà °ü¼ö±¸°¡ ÍýíþÀÌ 18.4 cm, ÍýÌÓÀÌ 14.1 cm À̾úÀ¸¸ç, °³ÈÈÄ
Ó¨â©Ï¡¿¡¼´Â ÍýíþÀÌ 16.3 cm, ÍýÌÓÀÌ 12.9cm·Î °¡Àå ³·Àº ¼öÁØÀ̾ú´Ù.
°¢ 󸮰£ ´çµµ´Â <Ç¥ 4>¿¡¼¿Í °°ÀÌ °ü¼ö·®ÀÌ ¸¹¾Ò´ø °üÇà°ü¼ö±¸°¡
9.6¡ÆBx·Î °¡Àå ³·Àº â©ñÞÀ̾ú´ø ¹Ý¸é, °ü¼ö·®ÀÌ Àû¾îÁú¼ö·Ï ´çµµ´Â ³ô¾ÆÁ® °³È
10ÀÏÈÄ 8ÀÏ °£°Ý °ü¼ö±¸°¡ 12.5¡ÆBx, °³ÈÈÄ Ó¨â©Ï¡´Â °¡Àå ³ôÀº 13.2¡ÆBx¸¦ ³ªÅ¸³»¾ú´Ù.
óÚï£(1970)´Â ¼ö¹ÚÀº °³È 20ìí ÀÌÈÄ ºÎÅͰ¡ ¼º¼÷Àû ¹ßÀ°±â·Î¼ ǰÁú ƯÈ÷
´çÇÔ·®¿¡ ¿µÇâÇÏ´Â ½Ã±â¶ó°í ÇÏ¿´´Âµ¥, º» ½ÃÇè¿¡¼µµ °³È±â ÀÌÈÄÀÇ °ü¼ö·® Â÷À̰¡
´çµµ¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶Ç, ÓØ Á¾·ùº° ÇÔ·®À» º¸¸é sucrose´Â
°üÇà °ü¼ö±¸¿¡¼ 25.8 mg/§¢, °³È 10ÀÏÈÄ 8ÀÏ °£°Ý 󸮱¸´Â 107.0 mg/§¢, °³ÈÈÄ
Ó¨â©Ï¡´Â 126.6 mg/§¢·Î ´çµµ¿¡¼¿Í °°ÀÌ °ü¼ö·®ÀÌ Àû¾îÁú ¼ö·Ï sucroseµµ ³ô¾ÆÁö´Â
°æÇâÀ̾ú´Ù. ¶Ç fructose ÇÔ·®µµ °üÇà °ü¼ö±¸°¡ 32.8 mg/§¢ À̾ú°í, ÀÌ¾î ´Ù¸¥Ã³¸®µµ
°ü¼ö·®ÀÌ Àû¾îÁú ¼ö·Ï fructore ÇÔ·®ÀÌ
Á¡Á¡ ³ô¾ÆÁ® °³ÈÈÄ Ó¨â©Ï¡ÀÇ °æ¿ì 78.1 mg/§¢·Î °¡Àå ³ôÀº ¼öÁØÀ̾ú´Ù.
Table 4. The content of sugars and yield under irrigation regimes in watermelon
Fig.2. Relationship between sugar content and saccharides in watermelon.
±×¸² 2¿¡¼¿Í °°ÀÌ ´çµµ´Â sucrose¿Í fructose¿Í ïáÀÇ ßÓμμÌõ°¡ ÀÖ¾î
´çµµ¿¡ ¿µÇâÀ» ÁÖ´Â ÓØ×¾´Â sucrose¿Í fructose ÀΰÍÀ¸·Î º¸¿´´Ù.
ÇÑÆí, glucose ÇÔ·®Àº 󸮰£¿¡ ÀÏÁ¤ÇÑ °æÇâÀ» ³ªÅ¸³»Áö ¾Ê¾Ò´Âµ¥,
À̰ÍÀº sucrose ¹× fructose¿Í ´Ù¸¥Á¡À» º¸¿©ÁÖ°í ÀÖ´Ù.
¼ö·®Àº °üÇà °ü¼ö±¸°¡ 14,650 kg/ha À̾úÀ¸¸ç, °³È 20ìí 8ìí °£°Ý±¸´Â
°üÇà¿¡ ºñÇØ 99 %, °³È 10ÀÏ 8ÀÏ °£°Ý Ï¡´Â 91 %, °³ÈÈÄ ´Ü¼ö±¸´Â 69 % ¼öÁØÀ̾ú´Ù.
ÀÌ»óÀÇ °á°ú¸¦ Á¾ÇÕÇØ º¸¸é ¿©¸§Ã¶ ºñ°¡¸²¿¡ ÀÇÇÑ ¼Ò°úÇü ¼ö¹Ú Àç¹è½Ã
°üÇà°ü¼ö¿¡ ºñÇØ °³È 10ÀÏÈÄ 8ÀÏ °£°ÝÀ¸·Î °ü¼öÇÏ´Â Ï¡°¡ °ú½ÇÀÇ Å©±â°¡ ´Ù¼Ò ÀÛ¾Æ
¼ö·®ÀÌ °¨¼ÒÇÏÁö¸¸(°üÇà´ëºñ 9% °¨¼Ò) °æ¿µÀû Ãø¸é¿¡¼ ¼Ò°úÇü ¼ö¹Ú Àç¹èÀÇ ¿ìÀ§¼ºÀº
Å©±â¿¡ ÀÖ´Â °ÍÀÌ ¾Æ´Ï°í ǰÁú¿¡ Àֱ⠶§¹®¿¡ ³ôÀº ´çµµ°¡ À̸¦ ´ÉÈ÷
ßÓáíÇÒ °ÍÀ¸·Î º¸ÀÌ¹Ç·Î ÃæºÐÈ÷ µµÀÔ °¡´ÉÇÑ ±â¼ú·Î »ý°¢µÈ´Ù.
î× é©
1. °³ÈÈÄ ´Ü¼ö±¸ÀÇ Åä¾ç¼öºÐÀÇ pF°ªÀº ¼öÈ®±â±îÁö 3.5
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ìÚ éÄ Ùþ úÌ
1. Ê¥Ôö ôË. 1975. å¯óøªÎßæëÀòàÓ¨. ÒÜߣåÛõ½Ùþûùúðüå. p. 186.
2. Ê¥Ôö ôË. 1985. ã¿àâå¯óøªÎßæëÀî¡úª. ÚÏéÒÞä. p. 154.
3. óÚï£ÎùÑû. 1970. «¹«¤««ªÎðÄâÙî¨ÛÆ(2).ÒÜÐàê®. 45 : 46 ¡ 50.
4. Sang-Gyu Lee, Kwan-Dal Ko, Kwang-Young Kim and Sang-Keun Park. 1993. Effects
of Planting Density on the Quality and Yield in Staking Cultivation of
Watermelon under Rain-shielding Condition. RDA. J. Agri. Sci. 35 (2) : 396 ¡
400.
5. ÒÜõ½òÉýéôæ. 1991. ÒÜõåß§Úª âÃìýËÒÛ¯¿¡ µû¸¥ ÒÜåöΡùÊÐüâúæÚϼ ËÒÛ¡ ñéíþÑ¢ ͪüñ(ù»).
ÒÜõ½òÉýéôæ. p. 325.
6. Yong-Hyun Om, Kue Hyon Hong, Bok Hyung You, and Jong Um Yuk. 1990.
Effect of Plant Density and Training on Fruit Set, Yield and Quality in
Watermelon. Res. Rept. RDA (H). 32 (1) : 11 ¡ 14.
7. H.Y. Park, C.I. Lim and J.H. Chung. 1985. Effects of Irrigation Period on
the Fruit-set and Quality of Summer Growing
Watermelon (Citrullus vulgaris S.) in Greenhouse. Res.
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