頁籤選單縮合
題名 | 氣象因素對屏東地區冬季蓮霧生產之影響 |
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作者姓名(中文) | 郭同慶; | 書刊名 | 高雄區農業改良場研究彙報 |
卷期 | 6:2 1995.06[民84.06] |
頁次 | 頁41-49 |
分類號 | 435.39 |
關鍵詞 | 蓮霧; 低溫寒害; 產期調節; Wax apple; Chilling injury; Adjustment of productive season; |
語文 | 中文(Chinese) |
中文摘要 | 蓮霧性喜溫暖怕寒冷,生育期最適溫度為25~30℃。屏東地區利用產期調節技術於冬季12月至4月收穫之蓮霧品質最佳,售價亦較高。 惟冬季天候不穩,常有寒流過境,或持續短日照天氣,導致蓮霧落花落果,影響產量與品質至鉅。82年1月16日寒流來襲,最低氣溫9.2℃,10℃以下之低溫持續長達11小時,導致蓮霧花蕾期15%之落花,幼果吊鐘期21%之落果,果蒂微紅期24%之落果,以及果實成熟期45%之落果。 冬季蓮霧自花蕾形成期起至收穫期止,其不同積溫與累計日照時數對蓮霧鮮果重之影響並不一致, 高樹試區蓮霧之平均單果重介於71~107公克之間,佳冬試區蓮霧顆粒較小,平均單果重介於70~93公克之間。蓮霧果實醣度(Brix°)則隨積溫與累計日照時數增加,有提高之趨勢,高樹試區蓮霧果實之平均醣度介於7.6~9.2之間,佳冬試區蓮霧果實平均醣度較高,介於9.2~12.6之間。 試驗經單相關分析結果顯示,累計日照時數及積溫與鮮果重間之相關均不顯著,惟與果實醣度之間呈顯著正相關,亦即累計日照時數愈長或積溫愈高,則蓮霧果實醣度有愈高之趨勢,累計日照時數與醣度間之相關係數較高,表示日照時數對醣度之影響較大,此點可能由於累計日照時數較長,蓮霧能行光合作用之時間也較長,而累積較多之光合產物所致。又累計日照時數與積溫之間呈顯著正相關,也表示日照時數較少時氣溫也較低。 |
英文摘要 | Wax apple is one of tropical fruit trees, the suitable temperature for the tree to grow is from 25 to 30℃. Under natural condition, wax apple is used to harvest from May to July. For improving the fruit quality and market sale. A forcing cultural technology has been applied in order to adjust the productive season from summer to winter. However, during the winter season, cold fronts often pass through Taiwan, thus the air temperature may drop below 10℃, and cause fruit damages. The main purposes of this study are to observe the degree of chilling injuries at different stages of fruit development and the relationship between some meteorological factors and fruit quality. This experiment was conducted at Kao-shu and Chia-tung of Pingtung from Sep. 1991 to Feb. 1994. During this period of time the minimum temperature below 10 ℃occurred 5 times, and the longer the duration of low temperature, the higher the percentage of fallen fruits. A survey made on Jan. 16, 1993 found that the chilling injury for wax apple was most severe at mature fruit stage, it caused about 45% of fallen fruits, the degree of injury was declined for young fruits, it was 24%, 21%, and 15%of fallen fruits at green red fruit, young fruit and flower bud stage, respectively. The results from correlation analysis showed that there was no significant correlation between fruit weight and accumulative sunshine hours, fruit weight and accumulative temperature. But both the accumulative sunshine hours and accumulative temperature have positive correlation on sugar content of the fruit. Thus a good weather condition during the ripening stage is very important for producing better quality of fruit. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。