Effects of Soil Moisture on Blossom,Fruit-setting and Protective Enzyme Activity of Chuanzao Loquat in the First Florescence

doi:10.7668/hbnxb.2017.01.021

Abstract

Abstract: The first florescence of the precocious loquat is in the dry season. To study the effects of soil moisture on blossom,fruit-setting and protective enzyme activity of loquat,the pot experiment of controlling water, with a new very precocious loquat line Chuanzao loquat as the materials, was designed to be 4 soil moisture treatments:normal irrigation, mild water stress, moderate water stress and severe water stress. The effects of soil moisture on blossom,fruit-setting and protective enzyme activity of Chuanzao loquat in the first florescence were studied. The results showed that the water stress of soil decreased the flower cluster length, flower cluster width, flower cluster number of secondary peduncle, number of flowers on the top of inflorescence and total number of flowers, and also decreased the flower buds length, flower buds width, anther length, anther width, silk length and style length of Chuanzao loquat.The water stress of soil reduced the stigma receptivity, mucous secretion of stigma,pollen vitality and pollen germination percentage of Chuanzao loquat. With the increase of soil moisture stress,these items of Chuanzao loquat had the decreasing trend. Under soil moisture stress, the protective enzyme (superoxide dismutase, peroxidase and catalase) activity of the first florescence of Chuanzao loquat was lower than the normal irrigation condition, and had the decreasing trend with the increase of soil moisture stress, indicating that the antioxidant ability of first florescence of Chuanzao loquat was weakened under water stress, and the damage degree of cell membrane increased. Under soil water stress, the fruit number and fruit setting rate of first florescence of Chuanzao loquat were lower than the normal irrigation, and had the decreasing trend with the increase of soil moisture stress. However, three treatments of soil water stress increased the seed number of first florescence of Chuanzao loquat.Therefore, soil water stress is the main factor causing the low fruit setting rate in flowering period of Chuanzao loquat.

Key words: Chuanzao loquat, The first florescence, Soil moisture, Blossom and bear fruit, Protective enzyme activity

CLC Number:

LIN Lijin, ZHANG Xiao, HAN Juan, ZHU Hongyu, LIU Lei, WANG Jun, LIAO Mingan. Effects of Soil Moisture on Blossom,Fruit-setting and Protective Enzyme Activity of Chuanzao Loquat in the First Florescence[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(1): 135-141. doi: 10.7668/hbnxb.2017.01.021.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2017.01.021

http://www.hbnxb.net/EN/Y2017/V32/I1/135

References

[1] 林旗华,许奇志,郑姗,等.枇杷种质资源坐果的遗传多样性及其相关分析[J].福建果树,2009(1):4-10.
[2] 陈志滨.早钟六号枇杷优质高效栽培技术[J].现代农业科技,2013(12):75.
[3] Mei L Y, Liao M A, Ren Y J, et al. Study on fruit quality, phenological phases and shoot histomorphology of a new bud mutant line, Chuanzao Loquat[J]. Agricultural Science and Technology, 2012,13(9):1881-1884.
[4] 鲍荣粉.川早枇杷生物学特性调查及疏果套袋对果实品质的影响[D].雅安:四川农业大学,2013.
[5] 魏瑞锋.土壤水分含量对梨枣树光合特性以及果实品质的影响[D].杨凌:西北农林科技大学,2012.
[6] 张晓,峰韩翔,张建光.不同土壤水分含量对黄冠梨叶片光合效率和抗氧化特性的影响[J].北方园艺,2013(10):7-11.
[7] 张燕,李娟,姚青,等.丛枝菌根真菌对水分胁迫下枇杷实生苗生长和养分吸收的影响[J].园艺学报,2012,39(4):757-762.
[8] 宋凤斌,戴俊英,张烈,等.水分胁迫对玉米花粉活力和花丝受精能力的影响[J].作物学报, 1998,24(3):368-373.
[9] 倪书邦,刘建福,李道高,等.澳洲坚果花期水分胁迫效应的研究[J].西南农业大学学报, 2002,24(1):34-37.
[10] 杨再强,谢以萍,张旭东,等.水分胁迫对枇杷果实发育阶段的光合特性和果实品质的影响[J].灌溉排水学报,2007,26(6):89-92.
[11] 张妍,杨发君,田义新.穿龙薯蓣花粉活力及柱头可授性测定方法研究[J].安徽农业科学, 2010, 38(5):2344-2346.
[12] 杨发君,张妍,张建,等.防风花粉活力测定方法的比较及柱头可授性的研究[J].人参研究, 2010, 22(2):22-25.
[13] 杨秀莲,向其柏.桂花花粉活力测定与晚籽银桂柱头可授性分析[J].林业科技开发, 2007, 21(3):22-25.
[14] 熊庆娥.植物生理学实验教程[M].成都:四川科学技术出版社, 2003:124-126.
[15] Jiang Y, Huang B. Drought and heat stress injury to two cool season turf grasses in relation to antioxidant metabolism and lipid peroxidation[J]. Crop Science, 2001, 41(2):436-442.
[16] 李合生.植物生理生化试验原理和技术[M].北京:高等教育出版社, 2000:258-260.
[17] 张芮,成自勇,王旺田,等.不同生育期水分胁迫对延后栽培葡萄产量与品质的影响[J].农业工程学报, 2014, 30(24):105-113.
[18] 杨芩.枇杷授粉受精生物学研究与 S 基因克隆[D].雅安:四川农业大学, 2013.
[19] 红雨,方海涛,那仁.濒危植物蒙古扁桃花粉活力和柱头可授性研究[J].广西植物, 2006, 26(6):589-591.
[20] 张维强,沈秀瑛,戴俊英.干旱对玉米花粉,花丝活力和籽粒形成的影响[J].玉米科学, 1993, 2(14):45-48.
[21] 杨再强,刘朝霞,韩秀君,等.水分胁迫对番茄保护酶活性及果实产量的影响[J].东北农业大学学报, 2014, 45(3):40-45.

Please choose a citation manager

Content to export