The Female Plant of Horikawaella rotundifolia C. Gao et Y.J. Yi (Jungermanniaceae, Hepaticae)

2010 ◽  
Vol 30 (3) ◽  
pp. 359-361 ◽  
Author(s):  
Wei LI ◽  
Qian GAO ◽  
Yu-Huan WU ◽  
Long CHEN
Keyword(s):  
Female Plant

scholarly journals The role of the male flower spike as a cue for selective grazing in bladder saltbush

2005 ◽  
Vol 27 (2) ◽  
pp. 97 ◽  
Author(s):  
D. Walsh ◽  
R. Sinclair ◽  
M. H. Andrew ◽  
D. Coleman
Keyword(s):  
Plant Material ◽  
Male Flower ◽  
Female Plant ◽  
Visual Cue ◽  
Merino Sheep ◽  
The Third ◽  
Selective Grazing

This paper reports the results of three cafeteria trials used to study palatability variation between the sex phenotypes of bladder saltbush (Atriplex vesicaria Heward ex Benth.). The results of the first trial show that Merino sheep preferentially grazed female samples compared to male ones, which supported earlier paddock-scale grazing trials and observations. In the second trial, the removal of male flower spikes led to increased consumption of male samples, suggesting that male flower spikes contain a grazing deterrent. The third trial showed that sheep were able to detect male material with or without spikes even when it was completely hidden within female plant material. In combination with observations made during the trials, these results suggest that there is a grazing deterrent present in male plants and that sheep use the male flower spike primarily as a visual cue when making grazing decisions.

scholarly journals Completing the jigsaw: the first record of the female plant of Daphnopsis filipedunculata (Thymelaeaceae), an endemic species from the Brazilian Amazon

PhytoKeys ◽  
2018 ◽  
Vol 109 ◽  
pp. 93-101
Author(s):  
Maurício Takashi Coutinho Watanabe ◽  
Nara Furtado de Oliveira Mota ◽  
Mayara Pastore ◽  
Fernando Marino Gomes dos Santos ◽  
Daniela Zappi
Keyword(s):  
Endemic Species ◽  
Brazilian Amazon ◽  
First Record ◽  
Female Plant ◽  
National Forest ◽  
Missing Information

The results of intensive fieldwork in the National Forest of Carajás (FLONA Carajás) led to the discovery of pistillate plants of Daphnopsisfilipedunculata, an endemic species from the Serra dos Carajás, previously known only from staminate individuals. These newly discovered populations add valuable missing information related to pistillate buds, mature flowers and fruits.

Bilateral sexual tetraploidization in red clover

1985 ◽  
Vol 27 (1) ◽  
pp. 64-68 ◽  
Author(s):  
W. A. Parrott ◽  
R. R. Smith ◽  
M. M. Smith
Keyword(s):  
Egg Production ◽  
Trifolium Pratense ◽  
2N Gametes ◽  
Red Clover ◽  
Female Plant ◽  
2N Pollen ◽  
Sexual Polyploidization ◽  
2N Eggs ◽  
Trifolium Pratense L ◽  
Bilateral Sexual Polyploidization

Twenty-four diploid red clover (Trifolium pratense L.) plants, from the cultivars 'Arlington', 'Florex', and 'Redman', and C760, a Wisconsin synthetic, were tested for 2n egg production by crossing them with tetraploid plants. Four plants were identified and selected as 2n egg producers. These plants were then crossed with a known producer of 2n pollen in an attempt to obtain tetraploid plants through bilateral sexual polyploidization. Thirteen percent of the seed obtained in one of the 2x–2x crosses were tetraploid. The female plant produced an estimated 0.14 2n eggs per 1000 flowers in the cross. In a second experiment, bilateral sexual polyploidization was attempted, using 14 plants which had not been previously tested for 2n egg production. Two of these plants produced one and two tetraploids each, representing 2n egg frequencies of 3.33 and 5.00 2n eggs per 1000 flowers, respectively. It seems likely that it will be possible to use bilateral sexual polyploidization to tetraploidize red clover germplasm in the future.Key words: tetraploid red clover, Trifolium pratense. 2n gametes.

Behind the Green Door

2018 ◽  
Author(s):  
Lincoln Taiz ◽  
Lee Taiz
Keyword(s):  
Classification System ◽  
Negative Impact ◽  
Female Plant ◽  
Sexual System ◽  
Linnaean System ◽  
Sexual Theory

Chapter 14 explores literary and scientific reactions to the idea of sex in plants. England experienced a fashion for “phytoerotica”: bawdy verse, in which plants represented human genitalia, and classically inspired poetry, in which stamens and pistils were personified as husbands, wives and lovers. The former had little to do with plants. The latter served to teach the Linnaean sexual classification system. In reaction, some botanists rejected both the sexual theory and the Linnaean system. Two camps developed, the “sexualists” and the “asexualists”. J.G. Siegesbeck railed, “[Who] will ever believe that God Almighty should have introduced such…shameful whoredom for the propagation of the reign of plants.” The negative impact of the sexual system on the morals of women became the asexualist’s rallying cry. In 1759, the Pope banned all Linnaeus’s books and ordered them burned. Nevertheless, Erasmus Darwin’s “Loves of Plants,” with its fascinating female plant characters, was a hit.

Studies on the Biosynthesis of Antheridiol

1974 ◽  
Vol 52 (3) ◽  
pp. 462-468 ◽  
Author(s):  
C. R. Popplestone ◽  
A. M. Unrau
Keyword(s):  
Sexual Reproduction ◽  
Carbon Skeleton ◽  
Female Plant ◽  
Male Plant ◽  
Side Chain ◽  
Biological Sequence ◽  
Aquatic Fungus ◽  
Tracer Studies ◽  
Naturally Occurring ◽  
Achlya Bisexualis

Sexual reproduction in the aquatic fungus Achlya bisexualis is governed by antheridiol, a C29 sterol, secreted by the female plant and which initiates formation of antheridial hyphae on the male plant. Tracer studies showed that naturally occurring fucosterol supplied the necessary carbon skeleton for antheridiol. Labelling and trapping studies with a series of hypothetic sterol precursors have indicated the biological sequence involved in elaboration of the antheridiol side chain.

scholarly journals Karakterisasi dan Evaluasi 10 Aksesi Salak di Sijunjung Sumatera Barat

2016 ◽  
Vol 15 (2) ◽  
pp. 75
Author(s):  
NFN Sudjijo
Keyword(s):  
Research Result ◽  
Female Plant ◽  
The Other ◽  
Male Plant ◽  
Using Data ◽  
Yellowish White

<p>The study was conducted at the farmer&amp;rsquo;s field in Ujung Batu Sijunjung, West Sumatera using local Salacca cultivars developed from crossing between cultivar Pondoh as female plant and indigenous salak of Sumatera as male plant. This study was held from January 2003 until December 2005. The objective of this study was to develop database of Salacca characters by exploration method and using data passport model. The research result showed that five accessions with yellowish white fruits and the other five accessions with white fruits. The plant that produced fruit with good quality was SNJ-01 and thick flesh (0.57 cm), sweet (18,00oBrix in TSS), crispy, yellowish white in color and contains water 77.02%.</p><p> </p><p><strong>Abstrak</strong></p><p>Penelitian ini dilakukan di kebun petani Desa Ujung Batu Kabupaten Sijunjung Sumatera Barat dengan menggunakan materi tanaman salak yang ada di daerah tersebut yang berasal dari persilangan antara induk betina salak Pondoh dan jantan indigenous Sumatera. Penelitian dilakukan pada bulan Januari 2003 sampai dengan Desember 2005 dan bertujuan untuk menyusun database karakter tanaman salak, metode yang digunakan adalah eksplorasi dan pengumpulan database menggunakan model paspor data. Hasil penelitian diperoleh deskripsi 5 aksesi yang warna buahnya putih kekuningan dan 5 aksesi yang warna buahnya putih. Tanaman yang menghasilkan buah dengan mutu baik, yaitu aksesi nomor SNJ-01, di mana daging buahnya tebal (0,57 cm), manis (PTT = 18,00oBrix), masir, berwarna putih kekuningan, dan kadar air (7,02%).</p>

Sign in / Sign up

Export Citation Format

Share Document