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題名 | 水稻農藝性狀對環境之反應及其發育之安定性(1)--農藝性狀平均值、株內及株 間變異性在不同栽培密度及期作下之變異 |
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作者 | 胡澤寬; 曾富生; | 書刊名 | 中華農學會報 |
卷期 | 118 1982.06[民71.06] |
頁次 | 頁48-61 |
分類號 | 434.111 |
關鍵詞 | 水稻; 性狀; 性狀平均值; 栽培密度; 株內; 株間; 發育; 農藝; 變異性; |
語文 | 中文(Chinese) |
中文摘要 | 使用秈、?稻各12品種(系),分別以25×25 cm、25×12.5 cm及25×3.25 cm三種栽培密度種植於第一、二期,以探討各農藝性狀之平均值、株內及株間變異性(CV)於不同期作及密度下之差異,其結果如下: 1. 產量及多數性狀平均值、株內CV值及株間CV值在期作及栽培密度間之差異均顯著,品種與期作及密度間有交感作用;各性狀之株內CV值及株間CV值在品種間有顯著差異,且兩變異性受栽培密度之影響比期作大。 2. 秈、?稻各性狀之平均值,除穗長、穎花數及百粒重第一、二期作無差異或以第二期作較高外,其他性狀均以第一期作較高。株內CV值: 秈、?稻除稔實率及抽穗期以第二期作較高外,多數性狀第一、二期作均無差異。株間CV值:秈稻除產量、穗長、穎花數及抽穗期無差異外,其他性狀均以第二期作較大;?稻所有性狀均以第二期作較大。 3. 栽培密度間性狀之平均值,秈、?稻除稔實率及百粒重外,其他性狀均隨密度之增加而低減;株內CV值除第一期作之穗長、穎花數及第二期之穗長、稔實率無差異外,其他性狀亦隨密度之增加而變小;株間CV值則除抽穗期及第一期之稔實率外,一般均隨密度之增加而變大。 秈稻大多數性狀的株內CV值較大者為Kwang-lu-ai 4;而 Hsing-ai-tsao 9、台中秈5號及嘉農秈育18號較小;?稻則以Ariake及台中188號較大,而高雄139號及台南5號較小。至於株間CV值,秈稻以台中秈3號、嘉農秈育18號、嘉農秈育14號及Kwang-lu-ai 4較大,而嘉農秈育19號及13號較小;?稻以Ariake及台中178號較大,而台中188號及台南5號較小。 |
英文摘要 | To investigate character variations between and within plants, 12 each of Indica and Japonica strains were tested at three planting densities, 25×25 cm、25×12.5 cm and 25×6.25 cm in the second (1978) and first (1979) crop-seasons. The results were summarized as follows: Grain yield and most of the agronomic characters differed significantly due to crop-seasons and densities. Their CV's between and within plants also differed with crop-seasons and densities. The difference due to density was greater than that due to crop-season. Furthermore, significant interactions were found between genotype and season, and between genotype and density in most characters. The strains were significantly different as the " Within CV" and " Between CV" showed. In general, means of most characters were higher in the first than those in the second crop-season, but panicle length, spikelet number and 100-grains weight were not different or higher in the second than those in the first crop-season at high density. The Within CV of all characters except for fertility and days to heading were not different between crop-seasons. The Between CV of all characters were higher in the second than those in the first crop-season except that grain yield, panicle length, spikelet number and days to heading were not differnt in Indica type. With regard to the effect of density, all character values except for fertility and 100-grains weight decreased as planting density increased. The Within CV of all characters except for panicle lenght, spikelet number and fertility also decreased as planting density increased. The Between CV of all characters except for fertility and days to heading increased as planting density increased. Comparison of the Within CV of all varieties showed that Kwang-lu-ai 4, Ariake and Taichung 188 had high values of most characters, and Hsing-ai-tsao 9l, Chianung sen yu 18, Kaohsiung 139 and Tainan 5 had lower values. The Between CV values of most characters for Taichung sen 3, Taichung sen 5, Chianung sen yu 18, Chianung sen yu 14, Ariake and Taichung 178 were higher, while those of Chianung sen yu 19, chianung sen yu 13, Taichung 188 and Tainan 5 were lower. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。