查詢結果分析
來源資料
頁籤選單縮合
題 名 | 本樟開花結實之調查 |
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作 者 | 鄧英才; | 書刊名 | 嘉義農專學報 |
卷 期 | 28 1992.02[民81.02] |
頁 次 | 頁115-132 |
分類號 | 436.25、436.25 |
關鍵詞 | 本樟; 結實; 開花; |
語 文 | 中文(Chinese) |
中文摘要 | 自1987~1991年五年間,調查嘉義地區三處本樟母樹,藉以明瞭本樟開 花結實之習性,俾供選種或進一步育種之依據。茲就調查分析之結果,獲知如 下結論:(一)本樟於每年3月花芽分化,4~5月間開花。本樟每花枝之花序數約5個, 花數約51朵,單株母樹間差異甚大。花序為圓錐花序(Panicles),花序大小(長x寬) 約9.74cm�插A母樹間之變異甚大;每花序之花數約18朵,分枝數約6個,母樹間之 變異亦大。(二)本樟開花期甚具,給3個月(3~5月)。花大小(長x寬)約19.21mm�插A 母樹間差異顯著。授粉後數日即可行受精作用,受精後幼果逐漸發育,經5~6個 月後(約10月間)果實完全成熟。此時核果含水率約147.12(乾重),比重約1.154:種 子含水率約55.83(乾重),比重約1.213。(三)本樟採種期影響種子品質甚大,種實 早期成熟者,其種子發芽率較成熟遲緩者為高。(四)據1987~1991年調查蘭潭校區 本樟母樹結果,本樟母樹年年可結實,單株母樹之結實量相差甚大。不同樹冠 級母樹之結實量差異懸殊,中勢母樹及優勢母樹之結實量遠較劣勢母樹者為 高。本樟母樹結實株數率甚高,約佔87。(五)本樟母樹開花結實集中於樹冠下部 (約佔54.47)及中部(約佔33.92)。(六)本樟母樹花開後結實率(4~10月)甚低,僅達8.27: 核果發育過程之中、後期(6~8月)之落果率約58.37。(七)本樟之結實期約為6~7年 生。 |
英文摘要 | Camphor tree (Cinnamomum camphora) is one of the most importanteconomical species for reforestation in Taiwan. The objectives of these studiesare to study its characteristics of flowering and fruiting. This studiy included (1)the morphology and structure of flower, and the flowering and fruiting habits.(2) Observations on the flowering and fruiting of Camphor tree from 1987-1991. The results obtained from the study were summarized as follows.1. The differentiation of flower bud begins in March. The average inflorescene numbers per flowering wood were about 5, and average floret numbers were about 51. Inflorescene is termed "panicles" about 9.74 cm�� (length x width), bearing about 18 florets and 6 branchlets. There were high significant differ- ences among individual seed tree.2. The flowering period of Camphor tree in Chiayi is from March to May. The flower size is about 19.21 mm�� (length x width). There were high signif- icant differences in flower size among individual seed tree. The young fruit needs about 5-6 months for developing to maturity. The drupe is violetish black when riped. The moisture content of the riped drupe is about147.12 (dry weight basis) and the specific gravity of the drupe is about1.154. The moisture content of the seed when riped is about 55.83 (dry weight basis) and the specific gravity of the seed is about 1.213.3. The maturing and collecting period of Camphor tree seeds significantly af- fect seed quality. The germination rate of early collecting seeds is highe than that of late collecting seeds.4. The seed tree of Camphor tree can fruit yearly. Seed numbers of fruiting showed significant differences among individual seed tree and individual crown class.5. The percentage of fruiting seed tree is about 87. The drupes mainly bear on the lower part of the crown of seed trees.6. The fruiting rate of flowers from August to October is about 8.27. The defruiting rate of young fruit under middle and late stage of development from June to August is about 58.37.7. The time of flowering and fruiting of Camphor tree was about 6-7 years of age. |
本系統中英文摘要資訊取自各篇刊載內容。