Effects of Different Plant Growth Regulators on Photosynthetic Characteristics and Fruit Quality of Jun-Jujube

doi:10.6048/j.issn.1001-4330.2022.12.017

Abstract

Abstract:

【Objective】 To study the effects of spraying different kinds of plant growth regulators on the diurnal changes of photosynthetic physiological indexes, fruit quality and yield of Junjube jujube in the hope of providing theoretical guidance for the high-quality cultivation of Junjube jujube in Xinjiang.【Methods】 Junzao was used as the research material, and six combinations of three plant growth regulator, thiobenzon (TDZ), gibberellin (GA₃) and porphin iron dihydrochloride were applied in the project. The leaf spraying of Junzao was carried out in the flowering period, and the photosynthetic characteristics, fruit quality and yield of Junzao were measured.【Results】 All the six treatments could improve photosynthetic characteristics, fruit quality and yield per plant. The net photosynthetic rate (Pn) and transpiration rate (Tr) of leaves under T₁ and T₂ treatments were significantly higher than those under CK, T₃ treatment had the highest water use efficiency (WUE).Compared with CK, T₁+T₃ had extremely significant differences. Single fruit weight, vertical and horizontal diameter were 44.45%, 11.11% and 16.78% higher than those of CK, respectively. T₃ had the highest drying rate of 46%. T₃ treatment had the highest titratable acid content, soluble sugar content and cellulose content, which were increased by 5.56%, 60.71% and 352.77% compared with the control, respectively.T₁ treatment had the best yield increase of 2.65 kg / plant, which was 194.44% higher than that of CK.【Conclusion】 Under using different plant growth regulators condition, jun jujube leaf photosynthetic diurnal variation, fruit quality and yield were significantly increased. Based on various indicators, the T₃-treated photosynthesis parameters, water utilization rate and fruit quality are excellent, and T₁ and T₂+T₃ treated fruits produce better than other treatments.

Key words: Jujube jujube; plant growth regulator; photosynthetic characteristics; fruit quality; yield

摘要： 【目的】 研究喷施不同种类植物生长调节剂对骏枣叶片光合生理指标的日变化、果实品质及产量的影响,为新疆骏枣优质栽培提供理论指导。【方法】 以骏枣为材料,以噻苯隆(TDZ)、赤霉素(GA₃)、二氢卟吩铁3种植物生长调节剂进行单、复配6种组合,于骏枣花期叶面喷施,测定叶片的光合特性、果实品质及产量。【结果】 6种处理均能在不同程度上提高骏枣光合特性,改善果实品质、增加单株产量,其中,T₁和T₂处理后骏枣叶片的净光合速率(Pn)、蒸腾速率(Tr)均显著高于CK,T₃处理的水分利用率(WUE)最高;T₁+T₃较CK处理存在极显著差异,单果重、纵横径分别高于对照44.45%、11.11%和16.78%,T₃出干率最高为46%;T₃处理的果实可滴定酸含量、可溶性糖含量、纤维素含量最高,并分别较对照增加了5.56%、60.71%、352.77%;T₁处理增产效果最好,为2.65 kg/株,与对照(CK)相比提高了194.44%。【结论】 在不同植物生长调节剂处理下,骏枣叶片的光合日变化、果实品质及产量均有显著提高,以T₃处理的光合作用参数、水分利用率与果实品质较优,T₁与T₂+T₃处理的果实的产量优与其它处理。

关键词: 骏枣, 植物生长调节剂, 光合特性, 果实品质, 产量

CLC Number:

S665.1

YUE Wanwan, Abudukayoumu Ayimait, JIN Juan, HAO Qing, FAN Dingyu, YANG Lei. Effects of Different Plant Growth Regulators on Photosynthetic Characteristics and Fruit Quality of Jun-Jujube[J]. Xinjiang Agricultural Sciences, 2022, 59(12): 3013-3021.

岳婉婉, 阿布都卡尤木·阿依麦提, 靳娟, 郝庆, 樊丁宇, 杨磊. 不同植物生长调节剂对骏枣光合特性、果实品质及产量的影响[J]. 新疆农业科学, 2022, 59(12): 3013-3021.

Figures/Tables 9

References 35

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药剂种类 Type of medicine	浓度 Concentration(mg/L)
噻苯隆(T₁)	0.1
赤霉素(T₂)	40
二氢卟吩铁(T₃)	200
噻苯隆+二氢卟吩铁(T₁+T₃)	0.1+200
赤霉素+二氢卟吩铁(T₂+T₃)	40+200
噻苯隆+赤霉素+二氢卟吩铁 (T₁+T₂+T₃)	0.1+40 +200

药剂种类 Type of medicine	浓度 Concentration(mg/L)
噻苯隆(T₁)	0.1
赤霉素(T₂)	40
二氢卟吩铁(T₃)	200
噻苯隆+二氢卟吩铁(T₁+T₃)	0.1+200
赤霉素+二氢卟吩铁(T₂+T₃)	40+200
噻苯隆+赤霉素+二氢卟吩铁 (T₁+T₂+T₃)	0.1+40 +200

处理 Treatment	单果重 Fruit weight (g)	纵径 Longitudinal diameter (cm)	横径 Transverse diameter (cm)	果形指数 Fruit shape index	出干率 The output rate of dry (%)
T₁	24.99±1.67^a	5.10±0.18^a	3.41±0.05^a	1.50	42
T₂	18.04±0.68^bc	4.74±0.03^b	3.05±0.05^cd	1.55	40
T₃	19.11±0.87^bc	4.59±0.08^b	3.14±0.06^bc	1.46	46
T₁+T₃	20.19±0.56^bc	4.58±0.07^b	3.25±0.01^b	1.41	39
T₂+T₃	16.95±0.30^c	4.60±0.03^b	2.95±0.02^d	1.56	43
T₁+T₂+T₃	21.11±0.56^b	4.87±0.06^ab	3.25±0.02^b	1.50	40
CK	17.30±0.21^c	4.59±0.04^b	2.92±0.01^d	1.57	43

处理 Treatment	单果重 Fruit weight (g)	纵径 Longitudinal diameter (cm)	横径 Transverse diameter (cm)	果形指数 Fruit shape index	出干率 The output rate of dry (%)
T₁	24.99±1.67^a	5.10±0.18^a	3.41±0.05^a	1.50	42
T₂	18.04±0.68^bc	4.74±0.03^b	3.05±0.05^cd	1.55	40
T₃	19.11±0.87^bc	4.59±0.08^b	3.14±0.06^bc	1.46	46
T₁+T₃	20.19±0.56^bc	4.58±0.07^b	3.25±0.01^b	1.41	39
T₂+T₃	16.95±0.30^c	4.60±0.03^b	2.95±0.02^d	1.56	43
T₁+T₂+T₃	21.11±0.56^b	4.87±0.06^ab	3.25±0.02^b	1.50	40
CK	17.30±0.21^c	4.59±0.04^b	2.92±0.01^d	1.57	43

处理 Treatment	可滴定酸 Titratable acid (%)	可溶性糖 Soluble sugar (mg/g)	蛋白质 Protein (mg/g)	淀粉 Starch (mg/g)	VC VC (mg/g)	纤维素 Cellulose (mg/g)
T₁	0.38±0.01^abc	177.15±6.16^a	0.42±0.00^b	33.40±0.18^a	2.95±0.24^a	206.24±29.08^c
T₂	0.35±0.01^bcd	171.31±13.82^a	1.23±0.06^a	32.91±0.49^a	2.55±0.16^ab	331.56±15.39^c
T₃	0.45±0.04^a	194.29±8.95^a	0.49±0.01^b	33.69±0.42^a	1.77±0.04^c	925.20±36.44^a
T₁+T₃	0.27±0.02^d	169.94±13.27^a	1.17±0.11^a	32.89±0.74^a	1.95±0.27^bc	303.24±12.10^c
T₂+T₃	0.31±0.02^cd	169.34±12.08^a	1.22±0.03^a	32.84±0.31^a	2.90±0.08^a	681.95±19.4^b
T₁+T₂+T₃	0.41±0.01^ab	193.30±12.10^a	0.98±0.18^a	34.22±0.32^a	2.14±0.09^bc	284.43±27.67^c
CK	0.28±0.05^d	184.05±7.00^a	0.68±0.03^b	34.25±0.19^a	2.85±0.22^a	204.34±15.64^c