1989, 9(3).
Abstract:The initiation and development of flowers in a multi-pistil wheat-trigrain wheat has been investigated with LM and SEM. From the begining. of flower initiation until appearance of lodicules, no defference of flower differentiation and development could be
Wang Hai-yang , Tien Lan-hsing , Hu Zheng-hai
1989, 9(3).
Abstract:This paper deals with the histogenesis of the flower and inflorescence of Tritieum aestivum L., In Triticum, the Structure of the reproductive growth tip is Similar to that of the vegetative growth tip, both of which are composed of a twolayered tunica an
1989, 9(3).
Abstract:Rape is an important oil-bearing crop and very sensitive to drouhgt. Ultrastructural changes occurred in the mesophyll cells of rape plants which grow in dry condition were observed. In the mesophyll cells a tubuli-vesicular Structure can be found when th
Chang Zhao-yang , Yu Zhao-Ying
1989, 9(3).
Abstract:About 52 species and 6 vareities among 17 setions of the genus Salix L. have been observed and studied in this paper, based upon their leaf epidermal features such as cuticle striations, covering trichomes, crystal in epidermis, stomatal types and their d
He Jun-yan , Hu Jie-quan , Jing Zhong-ping
1989, 9(3).
Abstract:The present paper deals with study on the micropropagation of Begonia macuata Radd. The buds were produced when young leaf segments as explants were cultured on MS agar medium, supplemented with 0.4 rag/1 6-BA and 0.1 mg/1 NAA, which then grow into shoots
1989, 9(3).
Abstract:Phosphoenolpyruvate carboxylase (PEPC) activity of Sorghum Vuigare leaves appears diurnal shifts, PEPC activity is higher during the day and lower during the night, because PEPC is activited markedly by light. On the other hand, the PEPC activity is incre
Liu Xi-jun , Zhou Pi-zhen , Wang Shu-yan Liu Qing-lin , Li Lian-mei
1989, 9(3).
Abstract:Liriodendron chinense is the rare and threathend important protected plant of second degree in our country. There is a problem of introduction adaptation from it's north frontier-Dabashan Mountain to Xi'an area. Through physiological speciality experiment
Li Jun-chao , Chen Yi-e , Kang Bo-wen , Yao Zhi-chun
1989, 9(3).
Abstract:According to the differences of assimilatine branches structure, thirty-three plant species in transitive region of steppe to desert steppe observed are divided into six types: normal, total-palisade, symmetry, ringpalisade, C_4 and reduced type. It is pr
1989, 9(3).
Abstract:Standing crop in Robinia pseudoacacia L. community at loess Plateau area of north Weihe river was 85.193 ton/ha, in which 92.8% of trees layer, 5.8% of litter, and 1.4% of understory and herb layer. The above-ground standing crop of trees layer is the fun
