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| 1 | Coinoculation of bioinoculants improve Acacia auriculiformis seedling growth and quality in a tropical Alfisol soil显示文摘We conducted a study to find out if arbuscular mycorrhizal(AM) fungi(Acaulospora scrobiculata,Scutellospora calospora) and phosphate solubilizing bacteria(PSB, Paenibacillus polymyxa) inoculation either individually or in combinations can improve Acacia auriculiformis seedling growth, uptake of nutrients and quality in a phosphorus deficient tropical Alfisol. The seedlings were assessed for various growth and nutrient uptake parameters after 60 days of treatment. Inoculation with P.polymyxa stimulated mycorrhizal formation. Seedling height, stem girth, taproot length, number of leaves and leaf area, plant dry matter production, nodulation, and nodular dry weight were significantly higher for seedlings that were either dual inoculated or triple inoculated compared to individual inoculation of AM fungi or PSB, and uninoculated seedlings. Dual and triple application of AM fungi and PSB also significantly improved the nutrient contents of shoots and roots and nutrient uptake efficiencies. The calculated seedling quality indexes of the AM fungi and PSB inoculated seedling were 25–208% higher than uninoculated seedlings. These findings show that A.auriculiformis seedlings when dual inoculated or triple inoculated performed better than seedlings inoculated with the microbes individually and compared with uninoculated control seedlings. We conclude that bioinoculation is important for the production of high-quality A.auriculiformis seedlings in tree nurseries for planting in nutrient deficient soils. | Thangavelu Muthukumar Karuthamuthu Udaiyan | 2018 | Journal of Forestry Research2018，29，3： | 4 |
| 2 | Effects of Different Seedling Raising Substrates on Quality of Rice Seedlings显示文摘Five different seedling raising substrates were used to take the place of the nutrient soil to cultivate rice seedling mechanical transplanting in Anqing,Anhui Province.The emergence rate,survival rate,quality of aboveground parts of seedlings,root system and dry weight and fresh weight were surveyed and analyzed.The results showed that the rice seedling raising substrates could significantly improve the seedling quality and survival rate of mechanically transplanted seedlings,especially the seedling raising substrates produced by Anhui Province Lufu Agriculture Science and Technology Stock Co.,Ltd.and Anhui Anqing Yike Seedling Material Co.,Ltd.Finally,it is recommended to promote the seedling raising substrate in large area,to lay a solid foundation for realizing high yield,high quality,and high efficiency of rice. | Xiangdong WANG Zaigao CHEN | 2019 | Asian Agricultural Research2019，11，1： | 0 |
| 3 | EFFECTS OF SOIL MOISTURE CONTENT ON DRY NURSERY SEEDLING QUALITY OF LATE DOUBLE CROPPING RICE IN SOUTH CHINA显示文摘In the present paper, an experiment was conducted to study the effects of soil moisture content on dry nursery seedling quality in Guangzhou in 1995. Through comparing the difference of dry nursery seedlings and wet nursery seedlings, we found a close relationship between soil moisture content and seedling growth. The seedling emergence of dry nursery seedling was more even, tidy and faster, and the survival rate was higher than that of wet nursery seedling. Dry nursery seedlings had small plant stature, slow leaf stretching speed and low individual seedling dry weight, but had high dry/fresh weight ratio. This was abeneficial factor for seedlings to recover from transplanting shock more quickly. As com-pared with the wet nursery seedlings, dry nursery seedlings had poor rooting ability,but had more vigorous white roots and fewer rust roots. It was the possibly important reasonfor dry nursery seedlings to form strong“explosive force”. | Zhang Xu Huang Nongrong Kong Qingni Lin Daoxuan Liu YanzhuoRice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640Cai Hanxiong Liang Quan Liang Youqiang Liang ChengyingCereal and Oil Crop Production Section, Agricultural Department of Guangdong Province, Guangzhou 510500 | 1996 | 热带亚热带植物学报1996，4，S1： | 0 |
| 4 | Chitosan oligosaccharide addition modifies nutrient utilization in highly-valued ornamental tree seedlings显示文摘Forestation in the increasingly urbanized area generates a huge demand for ornamental tree stocks, requiring new approach to promote the cultural efficiency of highly valued seedlings. Chitosan oligosaccharide(COS) is one of biodegradable natural plant growth modifier derived from chitin and an abundant water insoluble biopolymer. In this study, Buddhist pine(Podocarpus macrophyllus)(PM) and Northeast yew(Taxus cuspidata)(TC) were cultured with or without COS addition from 1 July to 17 November 2016. Relative to the TC seedlings, the PM seedlings had greater growth of height and biomass which was found to be negatively correlated with the changes of nitrogen(N) and phosphorus(P) concentrations in shoot during the culture. Only those TC seedlings treated without COS addition had higher proportion of decline in the initial N concentration than that in the PM seedlings. Root P concentration declined less in Buddhist pine seedlings than that in Northeast yew seedlings treated with COS. By 17 of November 2016, both N and P seemed to have been diluted in the PM seedlings and exceed the demand in the TC seedlings. In conclusion, COS had the potential to be used for the culture of ornamental tree seedlings to promote nutrient utilization for shoot biomass accumulation, but more specific effect on nutrient allocation and utilization need to be confirmed by more studies. | Wang Yanjie Wei Hongxu Ge Lili Sun Naiwei Wang Ting Zhang Qichang Han Lianbin Ge Xingyu Jin Guangyu | 2018 | 林业与环境科学2018，34，3： | 0 |
| 5 | STUDY ON IMPROVING THE GROWTH QUALITY OF PLANTED SEEDLING OF PINUS KORAIENSIS IN INITIAL STAGE显示文摘Each link in initial process of artificial regeneration of Pinus koraiensis in clear cutting site was researched. The seedling recovery processes after transplantation. the affecting seedlings survival factors in different time, and the characters of seedling growth were analyzed. Results of this study suggest that the root recovery of Korean pine secdlings after transplanting is the key link in the artificial regeneration management. The synthetically management was proposed on basis of seedling root recovery process. | 李传荣 李萍 | 1995 | Journal of Northeast Forestry University1995，6，3： | 0 |
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