Breeding of New Purple Sweet Potato Variety ‘Puzishu 3’ and Identification of Its Characteristics

doi:10.3969/j.issn.1000-2561.2019.08.004

Abstract

Abstract:

A new purple sweet potato variety Puzishu 3 was bred from the hybrid offspring of Riqing 1 and Taiyin 2, with high stable yield and good eating quality. It was approved as a new national sweet potato variety in 2015. The morphological characteristics, quality characteristics, disease resistance, productivity and physiological characteristics of yield formation of the variety were studied. The results indicated that Puzishu 3 had a growth period more than 150 days. Based on regional tests in Fujian Province, the fresh root yield, dry matter yield and dry matter content increased by 7.51%, 14.35% over the control variety Ningzishu 1. The taste score of Puzishu 3 was 75.4 (70 for CK). Root quality appraisal showed that the contents of crude protein and soluble sugars in the root of Puzishu 3 were higher than that of CK, while reducing sugars was lower than that of CK. Puzishu 3 showed moderate resistance to sweet potato Fusarium wilt, middle susceptible to sweet potato Pseudomonas solanacearum Ⅰ and susceptible to sweet potato Pseudomonas solanacearum Ⅱ.

Key words: purple sweet potato, variety Puzishu 3, breeding, characteristics

CLC Number:

S531

CUI Jichao,YU Jinjiang,ZHONG Yi,ZHONG Yuyang,ZHENG Jianyang. Breeding of New Purple Sweet Potato Variety ‘Puzishu 3’ and Identification of Its Characteristics[J]. Chinese Journal of Tropical Crops, 2019, 40(8): 1482-1487.

Figures/Tables 8

References 24

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品种 Variety	薯块干率 Dry root/%	粗蛋白Crude protein /%	花青素含量Anthocyan /[mg·(100 g)^-1]	可溶性糖Soluble sugar/%	还原糖Reducing sugar /%	食味Taste value/point
莆紫薯3号Puzishu 3	27.73	4.99	9.7	22.05	7.41	75.4
宁紫薯1号Ningzishu 1(CK)	25.85	4.04	14.3	18.66	9.41	70.0

品种 Variety	薯块干率 Dry root/%	粗蛋白Crude protein /%	花青素含量Anthocyan /[mg·(100 g)^-1]	可溶性糖Soluble sugar/%	还原糖Reducing sugar /%	食味Taste value/point
莆紫薯3号Puzishu 3	27.73	4.99	9.7	22.05	7.41	75.4
宁紫薯1号Ningzishu 1(CK)	25.85	4.04	14.3	18.66	9.41	70.0

品种 Variety	年份 Year	抗性等级Resistant grade
品种 Variety	年份 Year	蔓割病 Fusarium wilt	薯瘟Ⅰ型 Rolsionia solanacearum Ⅰ	薯瘟Ⅱ型 Rolsionia solanacearum Ⅱ
莆紫薯3号Puzishu 3	2012	R	MS	S
莆紫薯3号Puzishu 3	2013	MR	MS	S
宁紫薯1号Ningzishu 1(CK)	2012	HR	HS	S
宁紫薯1号Ningzishu 1(CK)	2013	R	HS	S

品种 Variety	年份 Year	抗性等级Resistant grade
品种 Variety	年份 Year	蔓割病 Fusarium wilt	薯瘟Ⅰ型 Rolsionia solanacearum Ⅰ	薯瘟Ⅱ型 Rolsionia solanacearum Ⅱ
莆紫薯3号Puzishu 3	2012	R	MS	S
莆紫薯3号Puzishu 3	2013	MR	MS	S
宁紫薯1号Ningzishu 1(CK)	2012	HR	HS	S
宁紫薯1号Ningzishu 1(CK)	2013	R	HS	S

地点 Site	年份 Yield	鲜薯产量Fresh root/[kg·(666.7 m²)^-1]			薯干产量Dry root/[kg·(666.7 m²)^-1]
地点 Site	年份 Yield	莆紫薯3号Puzishu 3	宁紫薯1号 Ningzishu 1 (CK)	增产率 Increasing rate/%	莆紫薯3号Puzishu 3	宁紫薯1号 Ningzishu 1 (CK)	增产率 Increasing rate/%
赣州	2012	2220.00^**	1435.80	55.31	672.44^**	358.35	87.65
赣州	2013	1607.27^**	1863.53	-13.75	479.27	489.33	-2.06
龙岩	2012	1905.95^**	1660.27	14.80	541.86^**	458.90	18.08
龙岩	2013	2105.07^**	1674.60	25.71	596.13^**	461.53	29.16
福州	2012	1997.43^**	2442.79	-18.23	603.42	618.51	-2.44
福州	2013	1403.47^**	1645.60	-14.71	407.87	414.73	-1.65
广州	2012	3161.60^**	2157.60	46.54	850.47^**	537.24	58.30
广州	2013	2362.00^*	2178.67	8.41	542.27	559.33	-3.05
湛江	2012	1295.00^**	1773.50	-27.00	363.90^**	475.30	-23.44
湛江	2013	1560.67^**	1805.33	-13.55	421.33	412.00	2.26
莆田	2012	—	—	—	—	—	—
莆田	2013	2655.20^**	2370.13	12.03	742.13^**	650.20	14.14
南宁	2012	2062.18	1998.85	3.17	620.07	498.11	4.12
南宁	2013	2510.33^**	2019.80	24.29	569.36^**	529.13	17.19
平均	—	2068.09^*	1923.61	7.51	567.97^**	496.70	14.35