【摘要】：為了緩解寧夏中部旱區(qū)紅棗品種更新?lián)Q代較慢的現(xiàn)狀,豐富當(dāng)?shù)氐募t棗品種,進(jìn)一步推進(jìn)紅棗產(chǎn)業(yè)的發(fā)展。本試驗以4年生的6個紅棗品種為試驗材料,對不同紅棗品種進(jìn)行物候期的觀測、以及對生長性狀、光合基礎(chǔ)特性、果實品質(zhì)、產(chǎn)量進(jìn)行逐一分析和主成分的綜合評價,研究結(jié)果顯示:1、6個紅棗品種的萌芽時間均分布在4月的不同時期,狗頭棗萌芽時間最早,其次為“哈密大棗”、“同心圓棗”萌芽時間最晚;展葉期均集中于4月末至5月初;“同心圓棗”的始花時期最早,各品種始花時間均集中于5月中下旬;末花期為6月中下旬至7月初;坐果期基本維持在6月末至7月初;紅棗的成熟期集中于9月中上旬,以“同心圓棗”、“狗頭棗”最先開始成熟,“駿棗”和“小口棗”成熟較晚。2、“金昌一號”和“小口棗”的生育期較短;“駿棗”、“同心圓棗”、“哈密大棗”生育期中等;狗頭棗生育期最長。3、“金昌一號”的單果重最大,可達(dá)24.31 g,“狗頭棗”的單果重最小,只有10.16 g,但其畝產(chǎn)量最大,其次為“同心圓棗”,“小口棗”的畝產(chǎn)最小。4、本次試驗以寧夏中部干旱帶6個不同品種紅棗的37個指標(biāo)進(jìn)行主成分分析篩選出主成分因子,計算各主成分因子的得分和各品種的綜合得分,結(jié)果表明,前3項主成分因子的累計方差貢獻(xiàn)率達(dá)到88.97%,能夠反映出原始樣本的大部分信息,以此計算出各品種的綜合得分,“金昌一號”的綜合分值最高,其次為“山西駿棗”,綜合得分最低的品種為“小口棗”。
[Abstract]:In order to alleviate the slow renewal of jujube varieties in the arid area of central Ningxia, enrich the local jujube varieties and further promote the development of jujube industry. Six 4-year-old jujube varieties were used as experimental materials to observe phenological period of different jujube varieties, as well as to analyze growth characters, photosynthetic basic characteristics, fruit quality and yield one by one and to evaluate their principal components. The results showed that: (1) the germination time of six red jujube varieties were distributed at different stages in April, the germination time of Gutou jujube was the earliest, the next was "Hami jujube", the "concentric round jujube" was the last; The flowering period of "concentric round jujube" was the earliest, and that of each variety was in mid-late May, the last flowering period was from mid-late June to early July, the fruit-setting period was maintained from late June to early July, and the fruit-setting period was maintained from late June to early July, the last flowering period was from mid-late June to early July. The mature period of red jujube was concentrated in the first ten days of September, with "concentric round jujube", "dog head jujube" beginning to mature first, "Jun jujube" and "small mouth jujube" maturing later. 2, the growth period of "Jinchang No. 1" and "small mouth jujube" was shorter; "Jun jujube", "concentric round jujube", "Hami jujube" growth period medium; The growth period of Dou Tou jujube is the longest. 3. The single fruit weight of "Jinchang No. 1" is the largest, up to 24.31 g, and the single fruit weight of "Dou Tou Jujube" is the smallest, only 10.16 g, but its yield per mu is the largest, followed by "concentric round jujube." The yield per mu of "Xiaokou jujube" was the lowest. 4. In this experiment, 37 indexes of six different varieties of red jujube in the drought zone of central Ningxia were used to screen out principal component factors by principal component analysis, and the scores of each principal component factor and the comprehensive score of each variety were calculated. The results showed that the cumulative variance contribution rate of the first three principal component factors reached 88.97%, which could reflect most of the information of the original sample. The comprehensive score of each variety was calculated by this method, and the comprehensive score of "Jinchang No. 1" was the highest. Next is "Shanxi Junzao", the lowest comprehensive score is "small jujube".
【學(xué)位授予單位】：寧夏大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：S665.1

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