Duration of stigmatic receptivity in maize

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WebFeb 4, 2024 · Climate change can decrease the global maize productivity and grain quality. Maize crop requires an optimal temperature for better harvest productivity. A suboptimal … WebFeb 1, 1995 · Stigmatic receptivity is high at anthesis and lasts for the next 4 d. However, it drastically decreases 5 d after anthesis and it is nil 2 d later. The pattern of stigmatic receptivity closely fits that of papillar integrity, indicating that stigmatic receptivity relies on this integrity. Since papillar integrity can easily be evaluated in ...

Stigma receptivity and seed set in cassava - AGRIS

Web2. timing of stigmatic receptivity of maize Answer: HE SILK of a pistillate flower of maize is a unique combination of stigmatic and stylar tissue … 1,2). The effect of a water … WebThe duration of the EPP in fruits varies and can be from one day, as found in pear cultivar 'Doyenné du Comice' [15] up to 12 days in peach cultivar 'Earlihale' [32] and some olive … how many u.s territories are there

Timing of pollen release and stigma receptivity period of Piper ...

WebEvaluation of stigmatic receptivity. In 2004, stigmatic receptivity was assessed on detached ﬂowers as the number of germi-nated tetrads on the stigmatic surface 24 h after pollination. Flowers were detached from the plant one day after pollination and ﬁxed in formaldehyde acetic acid alcohol as described by Ngugi et al. (2002). Styles were WebThus, stigmatic receptivity could be an important factor limiting pear flower receptivity (Sanzol et al., 2003; Figure 2) [54] . Fruit set in kiwifruit after hand pollination was high, … WebThus, water deficits at anthesis can cause loss of silk receptivity in maize, but only when low silk ~w occurs >5 d after silks emerge from ... combination of stigmatic and stylar tissue. It is re ... how many us taxpayers

Stigma structure and receptivity in Bromeliaceae - ScienceDirect

Duration of stigmatic receptivity based on pollen …

WebMay 12, 2016 · Higher stigma receptivity is observed at anthesis for the species studied, with the highest receptivity at 8 am and remaining receptive until noon, with the exception of V. unilateralis, for which the greatest receptivity was … Web1975 ). From an agricultural perspective, stigmatic receptivity has a direct effect on the length of the effective pollination pe-riod and, consequently, on fruit yield (reviewed in Sanzol and Herrero, 2001 ). The length of stigmatic receptivity differs among species and can be affected by environmental conditions ( Hedhly et al., 2003 , 2005 ). how many us territories existWebStigmatic receptivity began 1 d after anthesis, with the greatest pollen germination rates and longest pollen tubes obtained 2 d after anthesis. Nectar secretion commenced with pollen... how many us towns are named valentine

"Webthe time required for dehiscence of anther ranged from 8 - 20 minutes in testers of rice. The results showed that time of anthesis in both the CMS lines and testers of rice since … " - Duration of stigmatic receptivity in maize

Duration of stigmatic receptivity in maize

WebThough the pollen tubes reached the embryosacs in 24 h in OP-4, it took about 48 h in OP-7. The presence of stigma receptivity in the morning hours could advantageously be … WebAnswer: HE SILK of a pistillate flower of maize is a unique combination of stigmatic and stylar tissue …. 1,2). The effect of a water deficit this pattern of kernel set varied with the …

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WebJul 1, 1998 · Pollen viability and stigma receptivity at each developmental stage were evaluated by considering the morphological changes in male … WebDec 30, 2015 · In general at the time of anthesis, the stigma is receptive and may lose for one 2 or several days.2-4Successful pollination period is determined with age of ovule, pistil morphology and receptivity of stigma.5The proteins present at the pollen, stigma and extra cellular matrix of pistil play an important role in pollen-pistil communication.

WebPremise of the study: Factors affecting floral receptivity in angiosperms remain opaque, but recent studies suggest that the acquisition of stigmatic receptivity associated with cell-wall-related arabinogalactan proteins (AGPs) may be a … WebHowever, the stigmatic receptivity expressed as flowers with at least one receptive stigma, closely matches the duration of the EPP evaluated from fruit set experiments. This was consistent over the 2 years of experiments, in spite of the differences recorded in the EPP, suggesting that stigmatic receptivity is clearly the limiting factor of ...

WebDec 30, 2015 · In general at the time of anthesis, the stigma is receptive and may lose for one 2 or several days.2-4Successful pollination period is determined with age of ovule, … WebIn this way, while the duration of stigmatic receptivity for each carpel is rather short, the flower has an expanded receptive period. This asynchronous period of receptivity for the different stigmas of a single flower is discussed as a strategy that could serve to maximize pollination resources under unreliable pollination conditions.

WebThe period of stigma receptivity was long (14 d), and the sequential exposure and senescence of stigmatic papillae occurred gradually and in a basipetal direction. Pollen …

WebMay 1, 2024 · Stigmatic receptivity was determined with the benzidine – hydrogen peroxide method (Dafni, 1992). The stigmas of 10 flowers per cultivar were immersed in … how many us troops are in okinawaWebJan 1, 1990 · For the A632 genotype, the receptivity appears before the emergence of the silks from the husks and lasts until the silk reaches a length of 30 cm. Therefore, at the … how many us time zones are thereWebfemale side and on ﬂower receptivity. In this work, the effect of temperature has been evaluated on stigmatic receptivity of sweet cherry in vivo, in the laboratory, and in … how many us troops are in africaWebFeb 1, 2011 · Stigmatic receptivity was evaluated in growth chambers at three RHs (95%, 80% and 72%) and two different temperatures (25°C and 30°C). The duration of … how many us troops are in lithuaniaWebFeb 1, 2011 · From an agricultural perspective, stigmatic receptivity has a direct effect on the length of the effective pollination period and, consequently, on fruit yield (reviewed in 50 ). The length of stigmatic receptivity differs among species and can be affected by environmental conditions ( 20, 5 ). how many us troops are left in afghanistanWebThe period of stigma receptivity was long (14 d), and the sequential exposure and senescence of stigmatic papillae occurred gradually and in a basipetal direction. Pollen … how many us tiktok usersWebJul 15, 1998 · It is ascertained that the SR duration in willow is short, lasting from 1 to 2 DA, and the poplar pollen germination rate on willow stigmas on 1 DA ranged from 26.3 to … how many us troops died on d day