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優質高產抗逆板栗新品種燕鳳的選育

2025-03-03 00:00:00路藝王萌王鳳春劉靜王東升王旋郭春磊曹飛李婧實孫海濤張京政齊永順王同坤張海娥
果樹學報 2025年1期
關鍵詞:高產

摘 " "要:燕鳳是從燕山板栗實生大樹群體中選育出來的新品種,具有優質、高產、抗逆性強等優良特性。堅果深褐色,色澤明亮;果肉淡黃色,肉質糯、香、甜,可溶性固形物含量(w)19%以上。在河北省遷西縣9月上旬成熟,為早中熟品種。結果母枝平均抽生果枝數2.7條,結果枝率70.6%,每結果枝刺苞數2.3個,每苞果粒數2.8個,平均單粒質量8.1 g。嫁接后第2年開始結果,8年生單株產量3.6 kg,折合產量3 024.0 kg·hm-2,連續結果能力強。耐貯性強,適宜炒食、制作冰栗等。抗旱,耐瘠薄,高抗紅蜘蛛,穩定性和適應性良好。適宜在燕山板栗產區及與此生態類型相似區域種植。

關鍵詞:板栗;新品種;燕鳳;抗逆;優質;高產

中圖分類號:S664.2 文獻標志碼:A 文章編號:1009-9980(2025)01-0248-04

A new Chinese chestnut cultivar Yanfeng with top quality, high yield and excellent stress resistance

LU Yi1, WANG Meng1, WANG Fengchun2, LIU Jing1, 3, WANG Dongsheng1, 3, WANG Xuan1, 3, GUO Chunlei1, 3, CAO Fei1, 3, LI Jingshi1, 4, SUN Haitao2, ZHANG Jingzheng1, 3, QI Yongshun1, 3, WANG Tongkun1, 3, ZHANG Hai’e1, 3*

(1Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao 066004, Hebei, China; 2Qianxi County Chestnut Industry Research and Development Center, Qianxi 064300, Hebei, China; 3College of Horticulture Science and Technology, Hebei Normal University of Science and Technology/Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Changli 066600, Hebei, China; 4College of Marine Resources and Environment, Hebei Normal University of Science and Technology, Changli 066600, Hebei, China)

Abstract: Yanfeng is a new chestnut cultivar selected through seedling selection. In 2006, the mother tree was found in Qianxi county, Hebei province by our research group, which was determined to be the superior strain after evaluation. In the spring of 2007, the strong juvenile branches of the mother tree were collected and grafted to the Variety Breeding Nursery of Hebei Normal University of Science and Technology, and the main cultivar Yanshanzaofeng was used as the control. Since 2015, regional trials have been carried out in three sites of Hebei province (including Funing, Qianxi and Qian’an). After eight years of trial and investigation, the superior strain showed obviously desirable characteristics such as high quality, high yield and strong resistance. In December 2023, it was approved by Hebei Forest Variety Certification Committee and officially named as Yanfeng. This cultivar is of medium height. The tree is vigorous with spreading tree gesture. The annual branches are brown, and lenticels are small and moderately dense. Leaves are long elliptical and dark green, with 18.9 cm in length and 6.8 cm in width. After grafting for 6 years, the average numbers of male inflorescence and female flowers on mixed flower branches are 11.4 and 2.3, respectively. The shape of burs is oval, with coarse spines of medium density and length. The average weight of a single bur is 39.2 g. The nuts have puce and glossy shells. The faint yellow flesh of nut shows the quality of strong glutinousness, aroma and sweetness. Soluble solids content is above 19%. And the contents of mineral elements per 1 kg of nuts are 510 mg magnesium, 142 mg calcium, 12 mg iron, 6 mg zinc, 73.4 mg manganese, 2.6 mg copper, 3030 mg potassium, 786 mg phosphorus and 14 mg sodium. The fruit development period is 90 days. It matures in early September in Qianxi county, which belongs to the early-mid maturing variety. The average number of fruit branches produced by an original bearing-shoot is 2.7, and the proportion of fruit branches is 70.6%. Each fruit branch has an average of 2.3 burs. Each bur contains an average of 2.8 nuts. The weight of single nut is 8.1 g. After grafting, this variety begins to bear fruits in the 2nd year, and begins to produce abundantly and steadily in the 5th year. The average yield per tree in the 8th year is 3.6 kg, equivalent to a yield of 3 024.0 kg·hm-2, which is higher than the check cultivar Yanshanzaofeng. It has a strong capacity for continuous fruiting, and can produce stable and high yields in successive years under no fertilization condition. The nut has good storage resistance and can be used for stir-frying, making ice chestnuts, etc. Yanfeng is resistant to dry and barren soil. It is able to maintain normal growth in extremely dry parks and years. It is also resistant to red mite, with good stability and adaptability. Suitable cultivation areas are in the Yanshan mountains and areas similar to this ecotype. Orchards should be chosen on gneiss or granite weathered soil. The spacing in the rows and spacing between rows are (2-3) m× (3-4) m. Yanzi and Yanbao are appropriate pollination cultivars for Yanfeng.

Key words: Chestnut; New cultivar; Yanfeng; Stress resistance; High quality; High yield

板栗是原產中國的優勢經濟林樹種,但現階段生產上存在品種混雜[1]、良種化程度低等問題[2]。雖然選育出的板栗品種已超過300個,但這些品種的生產適應性仍有待提高,未來的育種方向應當是在豐產的基礎上,更加注重品質育種,同時重視抗性強良種的選育[3]。因此,河北科技師范學院以優質、高產、抗逆為選種目標,自20世紀90年代開始,在實生資源豐富的河北地區廣泛開展選種工作。

1 選育經過

2006年,河北科技師范學院板栗育種團隊和遷西縣板栗產業研究發展中心在遷西縣灑河橋鎮安家峪村進行考察時,當地農戶推薦了1株實生栗樹,經團隊初步綜合評價后定為初選優系。2007年春季,采集母樹上1年生健壯枝條嫁接到河北科技師范學院校內品種選育圃,以生產上主栽品種燕山早豐為對照進行復選。2015年開始分別在河北省撫寧縣、遷西縣和遷安市等地進行區域試驗。多年試驗及觀測結果表明,該優系具有豐產性強、產量高的明顯性狀特點;堅果美觀,糯性,香、甜,耐貯性強;抗旱,耐瘠薄。采用SSR標記進行品種間的DNA多態性比較鑒定,結果表明,該品系與燕麗、燕山早豐、大板紅、燕龍、燕紫5個對照品種DNA存在差異(圖1)。2023年12月通過河北省林木品種審定委員會審定,命名為燕鳳(圖2),良種編號:冀S-SV-CM-009-2024。

2 主要性狀

2.1 植物學特征

樹體高度中等,樹姿開張。1年生枝褐色,皮孔小、圓形、密度中等。葉片長橢圓形,平均長度18.9 cm、寬度6.8 cm,濃綠色,葉背茸毛稠密,葉姿平展,先端急尖,鋸齒淺而大。燕鳳嫁接6 a(年)后,混合花枝雄花序平均11.4個,雌花數平均2.3個;結果枝長度31.2 cm,粗度0.9 cm,尾枝長7.6 cm。刺苞橢圓形,平均單苞質量39.2 g,刺苞長7.2 cm、寬5.5 cm、高4.8 cm;刺束粗、中等密度和長度、硬,黃綠色,刺束分支角小,成熟時“十字”裂。堅果橢圓形,深褐色,色澤明亮,果尖突出,茸毛稀疏,筋線不明顯,底座中等,接線平滑。

2.2 經濟特性

堅果果肉淡黃色,質地細膩,糯性、甜、香,可溶性固形物含量(w)19%以上;耐貯性強。結果母枝平均抽生果枝數2.7條,結果枝率70.6%,每結果枝苞數2.3個,出實率39.8%,每苞果粒數2.8個,單粒質量8.1 g,8年生單株產量3.6 kg,折合產量3 024.0 kg·hm-2,高于對照燕山早豐(表1)。

2.3 品質特性

每100 g堅果含有水分52.8 g,淀粉27.1 g,蛋白質8.9 g,脂肪0.8 g,可溶性糖8.22 g,灰分0.96 g;每1 kg堅果礦質元素含量為鎂510 mg、鈣142 mg、鐵12 mg、鋅6 mg、錳73.4 mg、銅2.6 mg、鉀3030 mg、磷786 mg、鈉14 mg。

2.4 物候期

燕鳳在河北遷西縣,萌芽期4月22日,展葉期4月28日,雄花盛花期6月10日,雌花盛花期6月17日,果樹成熟期9月上旬,落葉期10月底至11月初,發育期90 d左右,為早中熟品種。

2.5 結果習性

燕鳳嫁接后第2年開始結果,第5年開始豐產穩產,6年生單株產量可超過3.6 kg,每公頃產量3000 kg以上,連續結果能力強,無大小年,產量高,無肥水條件下可連年穩產高產(表2)。

2.6 抗逆特性

抗逆性強,抗旱,耐瘠薄。在極度干旱的園區和年份,能夠保持正常生長。在現有品種常出現勢弱早衰的干旱片麻巖陡坡山地種植,不出現早衰現象。高抗紅蜘蛛,穩定性和適應性良好(表3)。

3 栽培技術要點

適宜在燕山板栗產區及與此生態類型相似的區域種植,以片麻巖、花崗巖風化的土壤栽植為宜。建議栽植密度2 m×3 m或3 m×4 m;嫁接5 a以上,開始逐年間伐。授粉樹品種可選用燕紫[4]、燕寶[5]等。樹形宜采用開心形、多主開心形或主干疏層形。幼樹注重夏季修剪,進行年內多次摘心,增加分枝數量,加快樹體整形。冬季修剪只采用疏剪方式,不進行短截。幼樹只疏除個別徒長枝,其余枝條保留緩放,以果壓冠;成齡樹采用“抓大放小”修剪方法[6],疏除過高過密的、交叉重疊的大枝或中枝,其余小枝不修剪,控制樹體高度在3~5 m。

4 綜合評價

燕鳳樹勢強健,樹姿開張;結果早,產量高,連續結果能力強;堅果甜香糯,品質優良;抗旱性強,耐瘠薄,適宜在燕山板栗產區及與此生態類型相似區域種植。

參考文獻 References:

[1] 韓元順,許林云,周杰. 中國板栗產業與市場發展現狀及趨勢[J]. 中國果樹,2021(4):83-88.

HAN Yuanshun,XU Linyun,ZHOU Jie. Status and trend of the development of chestnut industry in China[J]. China Fruits,2021(4):83-88.

[2] 易善軍. 我國板栗產業發展現狀及策略[J]. 西部林業科學,2017,46(5):132-134.

YI Shanjun. Situation and development strategy of chestnut industry in China[J]. Journal of West China Forestry Science,2017,46(5):132-134.

[3] 王同坤,汪民. 中國板栗種質資源[M]. 北京:中國林業出版社,2021:12-19.

WANG Tongkun,WANG Min. Chestnut germplasm resources in China[M]. Beijing:China Forestry Publishing House,2021:12-19.

[4] 張京政,齊永順,王同坤,楊濟民,佟躍武. 板栗新品種‘燕紫’[J]. 園藝學報,2016,43(12):2491-2492.

ZHANG Jingzheng,QI Yongshun,WANG Tongkun,YANG Jimin,TONG Yuewu. A new chestnut cultivar ‘Yanzi’[J]. Acta Horticulturae Sinica,2016,43(12):2491-2492.

[5] 郭春磊,曹飛,王東升,張京政,齊永順,王同坤,蔡德義,佟景梅. 晚熟優質板栗新品種‘燕寶’[J]. 園藝學報,2024,51(3):697-698.

GUO Chunlei,CAO Fei,WANG Dongsheng,ZHANG Jingzheng,QI Yongshun,WANG Tongkun,CAI Deyi,TONG Jingmei. A late ripening and high quality Castanea mollissima cultivar ‘Yanbao’[J]. Acta Horticulturae Sinica,2024,51(3):697-698.

[6] 張麗麗. 抓大放小修剪對燕山板栗生長結果的影響[D]. 秦皇島:河北科技師范學院,2020.

ZHANG Lili. Influence of cut big and retain small pruning on growth and fruiting of Yanshan Chestnut[D]. Qinhuangdao:Hebei Normal University of Science amp; Technology,2020.

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