high yield varieties 中文意思是什麼
high yield varieties
解釋
高產品種-
The development of these new varieties ( strains ) indicated that using the summer type variety from low latitude area as the high - protein parent, and local high - yield accessions as the recurrent parental lines in modified backcross is an efficient strategy for high - protein, high - yield soybean breeding
育種實踐證明，選擇低緯度地區的夏大豆品種（系）作高蛋白基因源，創造高蛋白中間材料，採用本地豐產材料進行修飾回交，是高蛋白、高產大豆育種的一種有效方法。 -
Comparative study on the drought - tolerance between 4 high yield paddy rice varieties and brazil upland rice variety
4個水稻高產品種與巴西陸稻的耐旱性比較研究 -
Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements
利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大 -
The results indicated that opposite maize had widespread heterosis like alternative maize ; yield advantage of opposite f1 ( alternative alternative ) was better than that of f1 ( opposite opposite ) and f1 ( alternative opposite or reverse ) ; general combining ability of yield characters was decreased by opposite characters transfer maize, but alternative maize with opposite genes has high general combining ability, so that on the opposite maize breeding, alternative inbred lines with different opposite genes can be parents for breeding hybrid lines ( alternative alternative ) and hybrid varieties with more seeds and high yield can be obtained
結果表明：對生玉米同互生玉米一樣具有普遍的雜種優勢，在產量性狀上f1對生株優勢互互組合大於對對組合和對互（互對）組合；對生性狀的轉育對產量性狀的一般配合力有降低效應，而含有對生基因的互生玉米具有較高的一般配合力效應，因此，在對生玉米育種中可以利用含有不同對生基因的互生自交系作親本來組配雜交組合（互互） ，從而獲得較高的制種產量和高產的對生雜交種。 -
Based on cultivating experiment of corn from 1996 to1999, the field researches on corn in arid mountainous area of changping was made on the sowing period, maize varieties, density of crop, methods of fertilizer application and mode of planting. furthermore, it is in this article that the system of cultivation techniques of high yield corn is discussed
1996至1999年進行多年玉米旱地栽培試驗，對昌平山區旱地玉米的播期、品種、播種密度、施肥措施、種植方式進行了分析研究，探討了昌平山區旱地玉米的高產栽培技術體系 -
High yield cultivation techniques of sweet potato quot; 868 quot; varieties series
水芹高產高效淺水栽培技術 -
Appraisal of high and stable yield to maize varieties in regional tests
玉米品種區域試驗參試品種高產穩產性評價 -
We aim to develop new high - yield varieties suited to local conditions and with increased pest and disease resistance, to make more efficient use of fertilisers and to find alternative uses of plants
我們致力於高產作物品種，並讓他們適應當地的生長條件，增強他們的抗病蟲能力，更好的吸收肥料，並尋找開發該作物獨特的用途。 -
However, when the amount of nitrogen fertilizer increased with the use of high yield varieties, the traditional method failed to contribute to expecting high yield and caused part nitrogen fertilizer wasted
然而使用高產品種施氮量提高后，傳統施肥方法不能得到預期產量並造成部分氮肥浪費。 -
The use of high yield varieties caused a complete change in technology, involving the cultural practices, the use of fertilizers, a better utilization of land, a controlled water supply and effective pest control and so on
種植高產品種植高產品種要求徹底改變技術，包括栽培措施、施肥、更好地利用土地、供水控制、病蟲害有效防治等等。 -
Perfomance and high - yield cultural technique of super mid - season hybrid rice varieties or lines
超級雜交稻的生育特性及經濟性狀分析 -
Non - photo sensitive varieties responded to high levels of n and required more n for maximum yield
非光敏品種對高施氮量反應好，其最高產量需要更多的氮。 -
The wide prospect of production was showed by clarifying the super properties of silage maize, the varieties division of each variety of producing and utilizing silage maize was analyzed and the high yield cultivation technique was illustrated
摘要從青貯玉米所具有的優良特性說明其生產前景廣闊，分析了青貯玉米生產利用的種類劃分及各種類特點，闡明了青貯玉米的關鍵栽培技術。 -
The high and stable yield abilities of 18 millet varieties which have breed recently for the north high plateau area in china were studied by the methods of megression coeffient, stable parameter, and high and stable yield coefficient as well
摘要利用回歸系數法、穩定性參數法和高穩系數法，對我國北部高原地區新育成的18個新品種（系）的高產穩產性進行了研究。 -
The results showed that the most of the test varieties had high yield, which was 55. 6 %, but in which they had poor stability so that there was only three varieties as tie93 - 115, 95 fenxuan 3 and chenggu 8 with high and stable yield ability, which was 16. 7 %
結果表明，參試品種多數產量較高，佔55 . 5 % ，但其中產量穩定性較差的佔多數，高產穩產的品種較少，僅有鐵93 - 115 、 95汾選3和承谷8號，佔16 . 7 % ，其餘的均為低產穩產和低而不穩的類型，各佔22 . 2 % 。 -
According to the breeding practice, it puts forward the model of wheat yield structure, the characteristics of dry - land varieties and the objectives to breed new varieties with drought resistance, cold resistance, disease - resistance and high quality
結合小麥育種實踐，提出小麥產量結構模式，旱地品種特徵特性和抗旱、抗寒、抗病、優質育種目標。 -
According to their fiber qualities and yield - character performances, eight f1 combinations from the cross between high quality fiber property varieties ( strains ) and insect - resistant varieties ( strains ) were evaluated to determine the best combination by using grey system principles and methods, which will help to improve selection efficiency and to accelerate cotton breeding process
摘要利用優質陸地棉品種（系）和常規抗蟲棉品種（系）配製雜交組合，根據f1代產量、主要產量性狀及纖維品質性狀表現，運用灰色評判原理與方法分析比較其灰色綜合評判值，以確定優良組合，為優質高產抗蟲雜交棉的選育提供理論依據。 -
A lot of sugar beet germplasms with high yield and high sugar content as well as disease resistance have been identified and selected through the appraisal of main agronomic traits, quality analysis and germplasms creation from seventh five - year plan to tenth five - year plan, and some novel superior germplasms with good economic characters, superior adaptability, good combining ability and genetic stability have been created, which have been applied to breeding as pre - breeding, new varieties have been bred to commendably serve for sugar beet production
摘要通過「七五」至「十五」期間甜菜種質資源的主要農藝性狀鑒定、品質分析和種質創新研究，鑒定、篩選出一大批豐產、高糖、抗病的種質資源材料，同時對其性狀改良，創造出一些經濟性狀優良、適應性強、配合力高、遺傳穩定的新型優異種質，有的已做為預選種應用於我國的育種實踐中，並育成新品種在生產上大面積推廣應用。 -
Resistant varieties of wheat have been crossed with high yield wheat to combine these properties
比如，抗病小麥同高產小麥雜交，形成了一種具有雙重特性的新的小麥品種。 -
Seed production techniques for high quality and high yield cabbage varieties
甘藍優質高產制種技術
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