Effect of fruit retention at different ordinal position on pear fruit quality under plastic tunnel cultivation conditions

doi:10.16178/j.issn.0528-9017.20240687

Abstract

Abstract:

In order to investigate the effects of fruit retention at different ordinal position on pear fruit quality under plastic tunnel cultivation conditions, we selected Cuiguan, Cuiyu and Xinyu pears cultivated in plastic tunnel as materials to analyze the phenotypic indexes and their correlations at different ordinal positions.The results showed that the maximum single fruit weight were at the 4th, 3rd and 1st ordinal position for Cuiguan, Cuiyu and Xinyu, respectively. The maximum transverse and longitudinal diameters of Cuiguan and Cuiyu were at the 4th and 3rd ordinal position, respectively, while the maximum transverse diameter was at the 1st ordinal position and the maximum longitudinal diameter was at the 3rd for Xinyu. Fruit retention at different position for Cuiguan and Cuiyu had no obvious effect on fruit shape index. The fruit shape index of Xinyu was increased with the raised order position. All of three cultivars had the thickest fruit stem at the 3rd ordinal position and the thinnest one at the 5th ordinal position. The highest soluble solid content of Cuiguan, Cuiyu and Xinyu was at the 4th, 3rd and 1st ordinal position, respectively. Correlation studies showed that there was a significant correlation between the single fruit weight and fruit tranvserse diameter in three cultivars, with the two being more closely related in Cuiyu. The comprehensive study showed that the best ordinal position for fruit retention were the 4th and 3rd for Cuiguan and Cuiyu facility-facilitated cultivation conditions, respectively, while Xinyu was tentetively suggested to be the 4th ordinal position. The results can provide guideline for facility-facilitated cultivation of south early maturing pear.

Key words: pear, facility cultivation, ordinal position, single fruit weight, fruit transverse and longitudinal diameters, fruit stem, soluble solid

CLC Number:

S661.2

CAI Danying, DAI Meisong, WANG Yuezhi, WEI Chunyan, SHI Zebin. Effect of fruit retention at different ordinal position on pear fruit quality under plastic tunnel cultivation conditions[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(5): 1091-1095.

Figures/Tables 3

References 19

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序位	翠冠			翠玉			新玉
序位	果实横径/ mm	果实纵径/ mm	果形指数	果实横径/ mm	果实纵径/ mm	果形指数	果实横径/ mm	果实纵径/ mm	果形指数
1	86.75 a b	82.28 a b	0.95 a	84.71 b	76.94 b	0.91 a	77.35 a	68.77 a	0.89 b
2	88.70 a b	83.79 a b	0.95 a	85.68 a b	77.88 b	0.91 a	74.75 a	65.52 a	0.91 a b
3	87.94 a b	81.03 a b	0.92 a	91.47 a	87.68 a	0.96 a	76.08 a	69.34 a	0.91 a b
4	93.53 a	87.00 a	0.93 a	84.42 b	76.85 b	0.91 a	75.60 a	69.12 a	0.92 a b
5	76.34 b	71.67 b	0.84 a	84.74 b	77.32 b	0.91 a	72.97 a	67.77 a	0.93 a

序位	翠冠			翠玉			新玉
序位	果实横径/ mm	果实纵径/ mm	果形指数	果实横径/ mm	果实纵径/ mm	果形指数	果实横径/ mm	果实纵径/ mm	果形指数
1	86.75 a b	82.28 a b	0.95 a	84.71 b	76.94 b	0.91 a	77.35 a	68.77 a	0.89 b
2	88.70 a b	83.79 a b	0.95 a	85.68 a b	77.88 b	0.91 a	74.75 a	65.52 a	0.91 a b
3	87.94 a b	81.03 a b	0.92 a	91.47 a	87.68 a	0.96 a	76.08 a	69.34 a	0.91 a b
4	93.53 a	87.00 a	0.93 a	84.42 b	76.85 b	0.91 a	75.60 a	69.12 a	0.92 a b
5	76.34 b	71.67 b	0.84 a	84.74 b	77.32 b	0.91 a	72.97 a	67.77 a	0.93 a

品种	序位	单果重/ g	果柄长度/ mm	果柄粗度/ mm	可溶性固形物含量/%
翠冠	1	364.50 b	41.27 a	2.48 a b	12.03 a b
	2	365.69 b	44.71 a	2.71 a b	12.09 a b
	3	367.88 b	43.10 a	2.79 a	12.23 a b
	4	443.20 a	46.19 a	2.61 a b	12.74 a
	5	306.14 b	37.41 a	2.27 b	11.50 b
翠玉	1	329.04 b	35.53 a	3.15 a	10.56 b
	2	338.04 b	41.05 a	3.00 a b	9.97 c
	3	426.12 a	39.10 a	3.30 a	10.98 a
	4	325.17 b	36.28 a	2.67 b c	10.40 b
	5	329.73 b	35.07 a	2.47 c	10.70 a b
新玉	1	251.06 a	44.49 a	2.64 a b	10.96 a
	2	226.10 a	46.28 a	2.59 a b	9.95 a
	3	244.48 a	45.49 a	2.70 a	9.97 a
	4	247.36 a	45.22 a	2.47 a b	10.55 a
	5	224.43 a	45.59 a	2.35 b	10.46 a

品种	序位	单果重/ g	果柄长度/ mm	果柄粗度/ mm	可溶性固形物含量/%
翠冠	1	364.50 b	41.27 a	2.48 a b	12.03 a b
	2	365.69 b	44.71 a	2.71 a b	12.09 a b
	3	367.88 b	43.10 a	2.79 a	12.23 a b
	4	443.20 a	46.19 a	2.61 a b	12.74 a
	5	306.14 b	37.41 a	2.27 b	11.50 b
翠玉	1	329.04 b	35.53 a	3.15 a	10.56 b
	2	338.04 b	41.05 a	3.00 a b	9.97 c
	3	426.12 a	39.10 a	3.30 a	10.98 a
	4	325.17 b	36.28 a	2.67 b c	10.40 b
	5	329.73 b	35.07 a	2.47 c	10.70 a b
新玉	1	251.06 a	44.49 a	2.64 a b	10.96 a
	2	226.10 a	46.28 a	2.59 a b	9.95 a
	3	244.48 a	45.49 a	2.70 a	9.97 a
	4	247.36 a	45.22 a	2.47 a b	10.55 a
	5	224.43 a	45.59 a	2.35 b	10.46 a

性状	品种	单果重	果实横径	果实纵径	果形指数	果柄长度	果柄粗度	可溶性固形物
单果重	翠冠	1.000	0.935^*	0.907^*	0.645	0.892^*	0.539	0.986^**
	翠玉	1.000	0.999^**	0.920^*	0.736	0.364	0.653	0.622
	新玉	1.000	0.892^*	0.787	-0.056	-0.806	0.519	-0.158
果实横径	翠冠	0.935^*	1.000	0.987^**	0.848	0.967^**	0.760	0.955^*
	翠玉	0.999^**	1.000	0.923^*	0.740	0.404	0.666	0.582
	新玉	0.892^*	1.000	0.474	-0.471	-0.659	0.789	0.105
果实纵径	翠冠	0.907^*	0.987^**	1.000	0.896^*	0.948^*	0.705	0.910^*
	翠玉	0.920^*	0.923^*	1.000	0.942^*	0.405	0.366	0.497
	新玉	0.787	0.474	1.000	0.554	-0.744	0.145	-0.632
果形指数	翠冠	0.645	0.848	0.896^*	1.000	0.771	0.705	0.666
	翠玉	0.736	0.740	0.942^*	1.000	0.359	0.060	0.356
	新玉	-0.056	-0.471	0.554	1.000	-0.131	-0.605	-0.726
果柄长度	翠冠	0.892^*	0.967^**	0.948^*	0.771	1.000	0.799	0.920^*
	翠玉	0.364	0.404	0.405	0.359	1.000	0.553	-0.480
	新玉	-0.806	-0.659	-0.744	-0.131	1.000	-0.156	0
果柄粗度	翠冠	0.539	0.760	0.705	0.705	0.799	1.000	0.656
	翠玉	0.653	0.666	0.366	0.060	0.553	1.000	0.177
	新玉	0.519	0.789	0.145	-0.605	-0.156	1.000	-0.053
可溶性固形物含量	翠冠	0.986^**	0.955^*	0.910^*	0.666	0.920^*	0.656	1.000
	翠玉	0.622	0.582	0.497	0.356	-0.480	0.177	1.000
	新玉	-0.158	0.105	-0.632	-0.726	0	-0.053	1.000