Cotton

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Breeding of Transgenic Hybrid Cotton Variety‘Yumian 50’and Cultivation Technologies

Journal of Agriculture 2017, 7 (4): 1-4. DOI: 10.11923/j.issn.2095-4050.cjas16100024

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The middle-early-maturing new cotton variety‘Yumian 50’was bred by the Institute of Industrial Crops, Henan Academy of Agricultural Sciences. It was examined and approved by Henan Evaluation Committee of Crop Variety in 2016 (Evaluation code: Yushenmian 2016002). In order to study the variety characteristics of‘Yumian 50’and the key points of its cultivation technology, and accelerate its application in cotton production, the breeding process of‘Yumian 50’was described in this paper. The test data of 26 times for three years of‘Yumian 50’participating in Henan regional tests in 2012-2014 were concluded. The results showed that‘Yumian 50’had outstanding performance in Henan regional tests, it was a new cotton variety with high-yield, good quality and disease-pest resistant characteristics.

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Effect of Waterlogging Degree on Cotton Seedling Growth and Physiological Change

郑曙峰,王维,刘小玲,吴文革,陈敏 and 阚画春

Journal of Agriculture 2016, 6 (2): 33-38. DOI: 10.11923/j.issn.2095-4050.cjas15110014

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In order to clarify the adaptability of cotton after waterlogging stres. cotton morphology, production and physiological changes at the seedling stage under different flooding degree were studied by using a pot experiment. The results showed that after flooding, cotton production, the rate of bolls per plant, boll weight, plant height, number of leaves and dry matter accumulation of per plant reduced, while Lint percentage did not change; with the flooding time increasing, various indicators continued reducing. after flooding 20d, leaf SPAD value declined rapidly, cotton lint yield decreased by more than 80%, even total crop failure. Overall, flooding 15d could be considered the critical time of cotton to adapt waterlogging stress during seedling stage , so cotton can resuming growing through cultural technique measure before the critical time.

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Traits Analysis of New Cotton Germplasm‘Ji863’with High Quality, High Yield, Disease Resistance, and Early Maturity

Journal of Agriculture 2016, 6 (2): 27-32. DOI: 10.11923/j.issn.2095-4050.cjas15060025

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Aiming at the common problems in cotton production, such as serious Fusarium wilt and Verticillium wilt, low fiber strength, too high micronaire and lack of earlier maturity varieties, different genetic background materials were collected and good comprehensive characters germplasms were screened as the parent materials. Then, hybridization was conducted between selected parent materials to cultivate progeny materials with multiple excellent target traits and through many generations’ south-reproduction and north-selection, evaluation of disease resistance in the whole growth period and different environmental adapting identification, the high quality, early maturity, disease-resistance and high yield ‘Ji863’ was cultivated. In 2006, the variety attended the Mid-South of Hebei Province spring sowing cotton regional trial. Then it was approved by Hebei Breeding Examination and Approve Committee and was entitled ‘Ji863’ in 2010. ‘Ji863’ fiber quality conformed to the law of the People's Republic of China agriculture industry standard Ⅱ type and quality cotton AA grade. Compared with other conventional spring cotton varieties approved in 2010 and in recent five years, ‘Ji863’ had better fiber qualities and earlier maturity, such as higher uniformity index, higher fiber strength, higher reflectivity and more suitable spinning evenness index. ‘Ji863’ was suitable for the production needs and the best comprehensive properties of cotton variety. ‘Ji863’ was an excellent germplasm resource which could be used to breed more new good varieties.

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Correlation and Path Analyses of Lint Yield and Yield Components of Cotton Chromosome Segment Substitution Lines and F1

Chinese Agricultural Science Bulletin 2016, 32 (3): 108-114. DOI: 10.11924/j.issn.1000-6850.casb15080017

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In order to study the relations among lint yield and yield components in cotton chromosome segment substitution lines (CSSLs) and clarify the main direction of yield breeding of cotton, a set of CSSLs and its F1 have been used to analysis the relations among lint yield and yield components using the correlation and path analysis in five environments. The results showed that the coefficient of variation of boll number among yield components was the largest, and followed by lint percentage and boll weight, respectively. Compared to CSSLs, the coefficient of variation of yield components in F1 was smaller in all environments. Lint yield exhibited positive and significant correlations with boll weight, lint percentage and boll number except for a few environments. The coefficients of simple correlation and partial correlation of boll number in CSSLs were the largest, but the coefficients of lint percentage in F1 were the largest. Compared to lint percentage and boll number, the relation between boll weight and lint yield was controlled significantly by environment. Path analysis illustrated that the boll number in CSSLs had the highest positive direct effect on lint yield, followed by lint percentage and boll weight, but the lint percentage in F1 had the highest positive direct effect on lint yield, followed by boll number and boll weight except for one environment. The indirect effects of yield components on lint yield in CSSLs were positive, but the indirect effects of boll number via boll weight and boll weight via boll number on lint yield in F1 were negative. The results indicated that the relations between lint yield and yield components, and the effects of yield components on lint yield were significantly controlled by the type of materials and environment. Based on the results of this study, the main direction of cotton yield breeding using CSSLs was to improve lint percentage at the early stage and boll number at the later stage, and For F1, the main direction of yield breeding was to improve lint percentage.

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美丽异木棉是一种很难扦插生根的多年生高大乔木，用植物营养液进行系列处理，在全光喷雾条件下，扦插生根率达86%。

植物营养液；美丽异木棉；扦插

Chinese Agricultural Science Bulletin 2006, 22 (3): 80-80. DOI: 10.11924/j.issn.1000-6850.060380

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Yu Suqin1,2, Chen kongliang2, Xi Haoqiang2

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ERF Subfamily Transcription Factors and their Potential Breeding Roles’ Research Progress in Cotton

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Chinese Agricultural Science Bulletin 2012, 28 (12): 7-12. DOI: 10.11924/j.issn.1000-6850.2012-0171

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Yield and quality of cotton have been seriously influenced by the Verticillium wilt and environment stresses such as drought, salinity, cold and so on. Molecular biology has been employed to make cotton more resistant to disease and variety stresses. ERF subfamily members of ethylene-responsive factor of ERF family show improved disease-tolerance and stress-tolerance no matter in wild type or in over-expression plants. In this paper, structure, classification, function, signaling transduction pathway and application of ERF subfamily genes from different species in different wild type or transgenic plants were reviewed, and suggestions were made about cotton resistant breeding according by researches of ERFs in different plants.

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Impact of transgenic Bt cotton on non-target insects

Ma Hui, Xia Xiaoming, Zhou Yu, Zhao Ming, Wang Hongyan

Chinese Agricultural Science Bulletin 2009, 25 (7): 214-218. DOI: 10.11924/j.issn.1000-6850.2008-1509

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The impact of transgenic Bt cotton on non-target pest, natural enemies and economic insects along with impact factors were discussed in this article. Numerous studies indicated that the transgenic Bt cotton make the population of the secondary pests which are not susceptible to Bt protein in plant increase evidently or show aggravating trend，but there are no evidences proving that the transgenic Bt cotton have direct stimulative effect on the occurring of other pests in the cotton field. After the exotic Bt gene introduced into cotton genome, the changes of content of important cotton nutrition and form frame of cotton leaf maybe affect the number of cotton pests population directly. And transgenic Bt cotton field is more in favor of the occurring and harming of the secondary insects originally fed on other plant. The pests population number and Bt protein also affect the enemy number directly or indirectly. Now, many studies indicated that the transgenic Bt cotton have no evident impact to economic insects such as silkworm and bee etc.

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Technical Protocol of Cotton-wheat Relay Intercropping

Journal of Agriculture 2015, 5 (10): 22-26. DOI: 10.11923/j.issn.2095-4050.cjas15030020

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The aims were to normalize the wheat-cotton relay intercropping planting, solve the contradiction of contending soil between food stuff and cotton, stabilize cotton production and achieve good quality and high yield as well as efficiency of grain and cotton. By summarizing years of experiences of the wheat-cotton relay intercropping cultivation, and screening published research results, the cultivation techniques were combined, optimized and verified through field tests. Based on the technology standardization requirements, wheat-cotton relay intercropping cultivating techniques were elaborated in varieties selection, sowing techniques, waterfertilizer management, plant pruning and topping, chemical control, disease as well as pest control etc, to solve the conflict of contending for water, fertilizer, shading light during symbiotic period. The double cropping cotton could open bolls early and intensively by making full use of time, space, light energy and land resources, which was beneficial to improve the quality and production of grain and cotton, and to achieve synchronized growth of grain and cotton. The regulation was made to provide convenience for farmers with field management operation, which was an effective way to solve the contradiction of contending soil between food stuff and cotton, to stabilize the cotton production, to achieve the double harvest of wheat and enhance the economic income of farmers.

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转基因抗虫棉；现状；对策

Q8

Chinese Agricultural Science Bulletin 2006, 22 (5): 193-193. DOI: 10.11924/j.issn.1000-6850.0605193

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Xiong Gesheng, Tang Haiming, Chen Jinxiang

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Studies on the Effects of Main Meteorological Factors on Economic Properties of Cotton in Hunan Province

Wang Zhaohui, Zhong Linguang, Li Jinglong

Chinese Agricultural Science Bulletin 2008, 24 (7): 113-118. DOI: 10.11924/j.issn.1000-6850.20086009

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By using the interpretative methods of grey systematic theory and the gradual regression analysis, the relationship between 4 meteorological factors and the main economic properties of cotton were investigated. The results showed: The variation coefficient of illumination hour and temperature to single boll weight and seed index is bigger than that of lint percentage and lint index under the condition of special ecosystem and cultivation in Hunan Province. Temperature and illumination hour are positive to single boll weight and seed index. Rainfall is rarely positive to single boll weight. Rainfall is positive to lint percentage and lint index.

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The structural research of the cotton degree planting group of high density

GENG Tao，DAI Lu，XU Zhan－wei

Chinese Agricultural Science Bulletin 2004, 20 (2): 104-104. DOI: 10.11924/j.issn.1000-6850.0402104

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The change regularity of different density cotton individual and group nutrition growth and reproduction growth based on the experience resulted by using the planting pattern of the 3 kinds of high density and conventional pattern on cotton.Show as a result: Along with the increase of planting density, individual growth weakens , and the growth of group encrypts with spacing in the rows( 261000 plants / hm2 ) pattern is the most strong, expression group knot bell number is much , has highest yield. In yield forms ,the medium－inferior bell of cotton make up 85% of the total yield always more, and internal surround bell of cotton make up 90% of total yield always. according that should choose the variety of the branched type of compact Ⅰ 、 Ⅱ kind of plant type, medium fertility field is planted with the pattern of the encryption of spacing in the rows (plant population was 261000 plants / hm2 ) ,It is expected to realize more ideal output by strengthening manage and promoting knot bell more in medium－inferior .

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The Cotton High Density Planting in High Yields County and Xinjiang

Zhu Yuguo

Chinese Agricultural Science Bulletin 2004, 20 (6): 153-153. DOI: 10.11924/j.issn.1000-6850.0406153

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Xinjiang locates in interior region of Europe and Asia, Which weather is dry and little rain; the temperature of day and night is wholly different. The spring air temperature backs up slowly, pour the cold weather in spring high frequency, the usually different degree in soil returns the salt and alkali, The basic level plants the unit of the cotton to usually Can't according to farmland ecosystem natural cover the protection the degree again certain winter and spring flooding farmland order of sequence, can't be reasonable certain the cotton starts to seedtime and different type the cotton farmland the fitting seedtime, cotton farmland soil and seeds the quantity all because of every kind of reason can not reach the cotton sow seed for sow the cotton farmland quantity request, cotton after sowing seeds the putrefy seeds that usually appear the different degree, lack the seedling; Under Rigorous situation appear the putrefy seeds in the cotton farmland, lacking seedling , Under the extremely passive circumstance Xinjiang the experiment and the demonstration breeds the personnel, passes" a cave stays two of plants" the etc. method resolved the new variety( strain) experiment and the demonstration the cotton farmland the large-scale lacking the seedling of the cotton farmland protects the seedling plants number few problem effectively, experiencing successively to fail many times, end broke the national cotton the high yields the record many times, creates the new mode in high density planting in cotton, is high for the cotton of Xinjiang to yields planting create a new road son.

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Genetic Improvement on Resistance and Yield Components of Chinese Cottons with Fusarium and Verticillium Wilts Resistance

Zhang Guiyin, Ma Zhiying, Zhao Huabing, Wang Xingfen, Wu Liqiang, Li Xihuan

Chinese Agricultural Science Bulletin 2005, 21 (3): 264-264. DOI: 10.11924/j.issn.1000-6850.0503264

Abstract + (1691)

Genetic improvement of main traits was analyzed using 110 China-bred cottons with Fusarium and Verticillium wilts resistance released since 1950’s.The results indicated that a great progress for Fususium wilt resistance breeding had been achieved, but progress for Verticillium wilt resistance breeding was slow. Yield of per plant showed an up trend except for 1970’s varieties. The mean of boll number per plant was no significant variation among different years. Lint percentage of the varieties showed a downtrend from 1950’s to 1970’s and an up trend from 1970’s to 1990’s. Growing period of the varieties became short from 1950’s to 1990’s, and there was a down trend of plant height, first fruit branch node, distance between the first fruit branch and cotyledon from 1960’s to 1990’s.

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闫长春

Yan Changchun

Chinese Agricultural Science Bulletin 2008, 24 (8): 152-155. DOI: 10.11924/j.issn.1000-6850.20086083

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A mapping population consisting of F2 individuals derived from resiting Verticillium wilt was used in this study. The 89 SSR Polymorphic Loci was filtrated in 2000 SSR Primers with Xinluzhong 10 and Xinluzao 7, 74 codominant markers and 15 dominant markers were checked. The linkage groups were constructed in 89 molecular markers with Mapmaker/EXP（version 3.0b）,and 65 marker loci were distributed on 19 different linkage groups, 24 marker loci were not distributed on linkage groups. The total length of 19 linkage groups was 962.2cm, and the rate of covering was 17.49%.

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Effects of Drip Irrigation under Mulch Film on Environment Factors and Growth on Cotton Field

.Liu Jianguo, Lv Xin, Wang Dengwei, Li Zhenhe, Xu Gongshe

Chinese Agricultural Science Bulletin 2005, 21 (3): 333-333. DOI: 10.11924/j.issn.1000-6850.0503333

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Field experiments were carried out to study the effects of drip irrigation under mulch film (DIUMF) on soil ecology environment and growth of cotton. The results showed DIUMF changes humidity environment of cotton in the field, creates Beneficial water, fertility, air, hot Condition for the cotton's growth, Comparing with normal irrigation, DIUMF is helpful to decrease soil surface evaporation, increase soil water content, reduce deep leakage, hold soil fertility, enhance water use efficiency, and improve vegetable yield. Have the good economy, ecosystem and social performance.

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Study on Transgenic Bt Cotton Using Kanamycin as an Indirect Identification Technique Indoors

Zhu Jiabao,Yang Kesheng,Chan Yankun,Liu Fangzhi,Jiang Benli,Xu Daoqing

Chinese Agricultural Science Bulletin 2003, 19 (6): 69-69. DOI: 10.11924/j.issn.1000-6850.030669

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A simple,cheap,and efficient technique for transgenic Bt cotton using kanamycin as an indirect identification marker in the laborotary is tested.The result showed that kanamycin could be used in the laborotary to test whether or not a plant is resistant.Seed of transgenic Bt cotton were cultured on sand bed containing 4000mg/L kanamycin solution for six days.The cotyledons of resistant varieties remained normal green color,whilst these of the commercial varieties all turned yellow.This technique is especially usful for the purity test of transgenic Bt cotton before the seed is sold. Meanwhile,the hypocotyls and fresh weigh of the cotton seedling were affected by the kanamycin in some degree.

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Analysis on Fiber Quality and Discussion on Zoned Management of Cotton in Hubei Province

Lan Jiayang, Zhang Xingzhong, Zhan Xianjin

Chinese Agricultural Science Bulletin 2004, 20 (4): 114-114. DOI: 10.11924/j.issn.1000-6850.0404114

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Data from 16 cotton varieties released in Hubei province since 1996 were analyzed to estimate the fiber quality. The results showed that: the fiber length was preferable, but lower in strength and higher in micronaire value. The quality of cotton wool produced in Hubei was rather better than in other province, just inferior in color character. Based on the difference of cotton fiber quality in three regions, E-dong, E-bei, and Jianghan Plain should be built to produce three main types cotton, respectively. How to improve the fiber quality of cotton in Hubei was discussed in three aspects: breeding, producing and zoned management.

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The Change of ≥10℃ Terminal Day and the First Frost Date in Xinjiang Cotton-growing Area and Affect of Cotton Growth in reent 49 yearsin Xinjiang Cotton-growing Area

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Chinese Agricultural Science Bulletin 2011, 27 (8): 355-361. DOI: 10.11924/j.issn.1000-6850.2010-2381

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The article was based on data about the mean daily and minimum temperatures of Xinjiang cotton-growing area of 22 stations from 1961 to 2009. The article analyzed not only the change characteristic of ≥10℃ terminal day and the first frost date, but also the effect of cotton growth. The results showed that the latest ≥10℃ terminal day and the first frost date were Turpan regions, followed by cotton-growing areas in southern Xinjiang, delayed from west to east in the Tarim Basin, and cotton-growing areas in northern Xinjiang and Hami was the first. During the 49 years, the change in trend of ≥10℃ terminal day was later in Yili and Shihezi cotton-growing areas, but there was not a clear trend in the rest of the cotton-growing areas in Xinjiang. The change in trend of first frost was later in northern Xinjiang, there was not a clear trend in the rest of the cotton-growing areas in Xinjiang. There was significant linear correlation between ≥10℃ terminal day and the first frost in the most of cotton-growing areas. The most stable ≥10℃ terminal day was Turpan regions, followed by cotton-growing areas in southern Xinjiang. Motion the range cotton-growing areas in northern Xinjiang were biggest. The change in trend of first frost period in Eastern regions was smaller than in Northern regions and southern Xinjiang cotton-growing areas. The change in trend of first frost period in Eastern regions, in Northern regions and southern Xinjiang cotton-growing areas were bigger than ≥10℃ terminal day. Particularly, Tarim Basin south-eastern cotton-growing regions were the most obvious. most of the cotton-growing areas in Xinjiang 90 years and from 2001 to 2009，the change in trend of ≥10℃ terminal day, only a small part of the site as early as year-round, the rest were later than the year-round. Especially the northern cotton region, Turpan cotton region and western Tarim Basin cotton region late more. Most of Xinjiang early frost delay trend was clearly cotton, and most of the cotton area from 2001 to 2009 the average first frost was last of the era. These were beneficial for the later growth of cotton, mainly as heat and more favorable conditions for cotton growth later reduced the risk of frost encountered before frost high yield, good quality. And ≥10℃ terminal day and the first frost date change to a large extent affected the cultivation of cotton boundaries extend north and west Xinjiang cotton area in recent years. Therefore, the production and the cotton could the local accumulated temperature ≥ 10℃ and select the appropriate state change first frost of cotton varieties, easy to achieve high yield and efficiency of cotton production.

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Evaluation and Suggestions on Regional Test of Cotton Varieties in Hebei Province

Liu Sujuan, Li Ruiqi, Ma Zhiying

Chinese Agricultural Science Bulletin 2006, 22 (1): 140-140. DOI: 10.11924/j.issn.1000-6850.0601140

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In the paper, effects and present problems in carrying out regional test of cotton varieties of Hebei province were analyzed and evaluated through sorting out experimental data and collecting information of many years. By using the advanced experience and practice of other countries for reference, some suggestions were put forward on tested varieties, type setting of regional test, location distribution, trait determination and recordation, and data analysis.

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The Influence of the Continuous Cropping to the Physical Properties of Cotton Soil

Chai Zhongping, Liang Zhi, Wang Xuemei, Jia Hongtao

Chinese Agricultural Science Bulletin 2008, 24 (8): 192-195. DOI: 10.11924/j.issn.1000-6850.2008-0379

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Taking the cotton soil which have been planted cotton five years, 10, 15, 20 years in the 50 Mission in South Xingjian region as a target, we respectively measured the proportion of cotton soil, density, porosity and the reunion of the structure and mechanical components and other physical properties with the different continuous cropping years. The results showed that: The continuous cropping with cotton have a great influence on various physical properties. The proportion and density of cotton soil has an upward trend with years of growth. And the porosity of the contrary. The micro-aggregates which is less than 0.25 mm in the soil aggregate a larger proportion. The good proportion of the aggregate has a declining trend with years of growth, while micro-aggregates the contrary; the sand of the soil mechanical components have a larger proportion; but not gravel, the sand content showed an upward trend with years of growth, but the downward trend of silt, and clay showed no fluctuations in-law.

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