Results 191 to 200 of about 2,732 (232)

Pollen viability and stigma receptivity in Lilium during anthesis

Euphytica, 2017
Pollen viability and stigma receptivity are prerequisites for successful pollination and seed set in flowering plants. In this study, the pollen viabilities and stigma receptivities of nine Lilium genotypes (six cultivars and three species native to China) were assayed by in vitro pollen germination and the benzidine-H2O2 method, respectively.
Jun Ming, Guoren He, Suxia Yuan
exaly   +2 more sources

Pollen viability, stigma receptivity and seed set in Viola tricolor

2011 International Conference on Electrical and Control Engineering, 2011
Pollen viabilities and stigma receptivities of 19 accessions in Viola tricolor were assayed by in vitro pollen germination and benzidine-H 2 O 2 method in this paper respectively. The seed set through hand-pollinate selfing was also investigated. The results showed that the pollen germination percent of V.
Huichao Liu, Wenqing Jia
exaly   +2 more sources

The Receptive Surface of the Angiosperm Stigma

Annals of Botany, 1977
This paper reports upon a study of the characteristics of the receptive surfaces of angiosperm stigmas, covering almost 1000 species of about 900 genera of some 250 families. In both monocotyledons and dicotyledons the major subdivision is into those stigmas which are 'dry' at maturity, having a hydrated, proteinaceous extracuticular layer or pellicle ...
YOLANDE HESLOP-HARRISON, K. R. SHIVANNA
openaire   +1 more source

[Pollen viability and stigma receptivity of Cistanche deserticola].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2011
To study the characteristics of pollen viability and stigma receptivity of C. deserticola and provide theory basis for seed production and breeding of C. deserticola.Different physiological measurement methods were applied to evaluate pollen viability and stigma receptivity.
Rong, Xu, Weicheng, Zhu, Jun, Chen, Xia, Wang, Tongning, Liu   +4 more
openaire   +3 more sources

Stigma-surface Esterase Activity and Stigma Receptivity in Some Taxa Characterized by Wet Stigmas

Annals of Botany, 1981
Stigma-surface esterase activity and stigma receptivity through a sequence of developmental stages of the pistil have been studied in four taxa characterized by having wet stigmas-Petunia hybrida, Nicotiana tabacum, Crinum defixum and Amaryllis vittata. The style is solid in the first two and hollow in the latter two taxa.
K. R. SHIVANNA, D. C. SASTRI
openaire   +1 more source

Elemental and biochemical markers of stigma receptivity in sunflower

Acta Physiologiae Plantarum, 2014
Stigma development in sunflower is accompanied with an accumulation of calcium (33 %), potassium (37 %) and boron (62 %) in mature stigma as compared to stigma at bud stage, thereby demonstrating their essential roles in attaining receptivity. Membrane-bound calcium accumulation is enhanced on the pellicle and is also evident in the cytoplasm ...
Basudha Sharma, S. C. Bhatla
openaire   +1 more source

Stigma Receptivity and Seed Set in Protogynous Buffelgrass

Crop Science, 2000
Buffelgrass, Pennisetum ciliare (L.) Link syn = Cenchrus ciliaris L., is an important warm‐season perennial forage grass that is widely grown throughout the arid tropics. It has perfect florets, and emasculation is thought to be required to produce controlled hybrids. This is a tedious, difficult undertaking because of the small floret size.
Gail S. Shafer, Byron L. Burson, Mark A. Hussey   +2 more
openaire   +1 more source

THE PERIOD OF RECEPTIVITY OF RICE STIGMA

Madras Agricultural Journal, 1933
A knowledge of the natural pollination and fertilisation in cultivated crops is of extreme importance to the plant breeder in the matter of evolving successful techniques of artificial hybridisa- tion for crop improvement. In most of the crop plants, which are self fertilised, natural pollination occurs at the time of flower opening.
openaire   +1 more source

The ovule ofGasteria verrucosaat receptivity of the stigma: an ultrastructural study

Acta Botanica Neerlandica, 1990
SUMMARY An ultrastructural study on the embryo sac and the micropylar part of the nucellus, at the time of stigma receptivity, was carried out to reveal possible changes due to pollination. At the time of stigma receptivity, the development of the egg cell, central cell, antipodals and the micropylar nucellar cells of Gasteria have been completed ...
Franssen-Verheijen, M.A.W., Willemse, M.T.M.   +1 more
openaire   +1 more source

Pollen viability and stigma receptivity of Salvia miltiorrhiza and its relative

China Journal of Chinese Matera Medica, 2010
To provide the basal data for artificial cross breeding of Chinese herb Salvia miltiorrhiza from 7 provinces in China and its 4 relatives.The pollen viability was evaluated by TTC (2, 3, 5-triphenylte trazolium chloride) test and the stigma receptivity was evaluated by benzidine-H2O2 method.The pollen viability of S.
Guocheng, Zhong, Li, Zhang, Ruiwu, Yang, Chunbang, Ding   +3 more
openaire   +2 more sources