Male florets and pistillate flowers of cvs.Chandler and Hartley of Persian walnut were cultured on modified Murashige and Skoog medium (MS) supplemented with 0.05 mg l-1 biotin, 0.5 mg l-1 folic acid, 100 mg l-1 glutamine and different concentrations of Naphthalene acetic acid (NAA) and Kinetin (KIN) and for pistillate flowers culture, these concentrations were 0.25, 0.5, 1 and 2 mg l-1). After...

Sex determination in maize involves the production of staminate and pistillate florets from an initially bisexual floral meristem. Pistil elimination in staminate florets requires jasmonic acid signaling, and functional pistils are protected by the action of the silkless 1 (sk1) gene. The sk1 gene was identified and found to encode a previously uncharacterized family 1 uridine diphosphate glyco...

Watermelon is one of the most important fruit crops in world, but their flowers require bees for pollination. In this study we determine bee species visiting watermelon flowers, daily visits and resource they forage during 84 observation days on Los Santos, Panama. Native bees, especially stingless represented visits, so probably play a very role pollination within zone. The frequent were N. pe...

In gynodioecious plant species, females are expected to have more resources available for maturing seeds because pistillate flowers are smaller, do not produce pollen, and are thus less costly that perfect flowers. The potential female advantage arising from more abundant resources is, however, likely to vary depending on whether seed production is limited by resource or pollen availability. He...

Studies of the morphology of the corn plant have led, according to Weatherwax (17) j^ to clearer and simpler explanations of the results of certain experiments with corn. It should be expected that further studies of the developmental morphology might prove to be equally helpful. Variations from the normal sequence of development which lead to abnormalities of the tassel and ear and variations ...

Abstract. Fridayanti N, Widajati E, Ilyas S, Budi SW, Palupi ER. 2023. Phenology of flowering and seed development jernang rattan (Daemonorops spp.). Biodiversitas 24: 349-358. Jernang has a high economic value due to its resin content in the exocarp, as raw material dyes, medicines, cosmetics. The is highest immature fruit skin (exocarp); therefore, fruits are harvested before germinable. As c...

Present investigation was carried out during Zaid season 2019-2020 in (Y1) and 2020-2021 (Y2) at the Main Experimental Station (MES), Department of Vegetable Science, Acharya Narendra Deva University Agriculture & Technology, Nagar, Kumarganj, Ayodhya (U.P) with 21 genotypes six parental line their fifteen F1 hybrids bottle gourd by using diallel (excluding reciprocal) mating fashion. Exper...

HILE spinach (Spina& oleracea L.) is usually considered to be dioecious, W there is a continuous range of monoecious types as regards the proportion of pistillate to staminate flowers per plant. Sex determination in dioecious strains of spinach is controlled by a mechanism that acts as if it were a single factor pair; the pistillate plant is homozygous ( X X ) , and the staminate plant is heter...